ABB 266Dx Operating Instructions Manual

Short-form of Operating Instructions

for 266 pressure transmitters

Short-form of Operating Instruction SOI/266-XC Rev. I

2600T Series Pressure Transmitters

Engineered solutions for all

applications

Language Page

English.........................................................................................................................................................................2

Italiano...........................................................................................................................................................................24

Deutsch........................................................................................................................................................................46

Français...........................................................................................................................................................................68

TTG Activation.............................................................................................................................................................90

Declaration of conformity.............................................................................................................................................91

PED Declaration.............................................................................................................................................92

Trouble Sheet........................................................................................................................................................................93

Return Report...........................................................................................................................................................................94

2 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

1 Introduction

Contents

1 Introduction ...................................................................................2

2 Safety ............................................................................................4

3 Installation .....................................................................................5

4 Transmitter conﬁguration ............................................................... 9

5 Applications .................................................................................13

6 Diaphragm seals ..........................................................................15

7 Hazardous Area considerations ...................................................16

8 Safety manual (Rev I) ...................................................................21

1 Introduction

1.1 General

This document provides basic instruction for the installation and

commissioning of the ABB 2600T pressure transmitter. This transmitter is

connected to a process by means of impulse lines and can measure

Pressure, Differential pressure or Absolute pressure. The measurement is

transmitted to a control system by means of a 4-20 mA signal with a

superimposed digital signal (Hart) or by means of a digital transmission

protocols (PROFIBUS or FOUNDATION Fieldbus).

The measure can also be indicated by means of one of the (optional)

local or remote displays. Instructions for preliminary checks, proper

transmitter location, installation, wiring, power-up and zero calibration

(trimming) of the transmitter are listed in the following chapters. In

order to assure operator and plant safety it is essential that the

installation is carried out by personnel suitably trained on the local

applicable codes on hazardous location, functional safety, electrical

wiring and mechanical piping.

Please read these instructions carefully before installing the

transmitter. The protection provided by the equipment may be

impaired if the equipment is used in a manner not speciﬁed.

1.2 Supplementary documentation

For further information, please refer to the following documents:

DS/266XX_X

Pressure Transmitter Datasheets

DS/S26

Remote Seal Datasheet

IM/266

266 Pressure Transmitter Instruction Manual

IM/S26

Remote Seal Instruction Manual

All the addendum and other documents downloadable from

www.abb.com/pressure

1.3 Use of instructions

Danger – <Serious damage to health/risk to life>.

This message

indicates that an imminent risk is present. Failure to avoid

this will result in death or serious injury.

Caution – <Minor injuries>. This message indicates a potentially

dangerous situation. Failure to avoid this could result in minor injuries. This

may also be used for property damage warnings.

Important. This message indicates indicates operator tips or particularly

useful information. It does not indicate a dangerous or damaging situation.

Warning – <Bodily injury>. This message indicates a potentially

dangerous situation. Failure to avoid this could result in death or serious

injury

Attention – <Property damage>. This message indicates a potentially

damaging situation. Failure to avoid this could result in damage to the

product or its surrounding area.

Although Warning hazards are related to personal injury, and Caution

hazards are associated with equipment or property damage, it must

be understood that operation of damaged equipment could, under

certain operational conditions, result in degraded process system

performance leading to personal injury or death. Therefore, comply

fully with all Warning and Caution notices.

1.4 Health and safety

To ensure that our products are safe and without risk to health, the

following points must be noted:

− The relevant sections of these instructions must be read carefully

before proceeding.

− Warning labels on containers and packages must be observed.

− Installation, operation, maintenance and servicing must only be

carried out by suitably trained personnel and in accordance with

the information given. Any deviation from these instructions, will

transfer the complete liability to the user.

− Normal safety precautions must be taken to avoid the possibility

of an accident occurring when operating in conditions of high

pressure and/or temperature.

− Chemicals must be stored away from heat, protected from

temperature extremes and powders kept dry. Normal safe

handling procedures must be used.

− When disposing of chemicals ensure that no two chemicals are

mixed.

Safety advice concerning the use of the equipment described in this

manual or any relevant hazard data sheets (where applicable) may be

obtained from the Company address on the back cover, together with

servicing and spares information.

2600T Series Pressure transmitters | SOI/266-XC Rev. I 3

1 Introduction

1.5 Product identification

The instrument is identiﬁed by the data plates shown in Figure 1. The

certification plate (ref. A): contains the certification related

parameters for use in Hazardous area.

The Nameplate (ref.B) provides information concerning the model

code, maximum working pressure, range and span limits, power

supply , output signal, diaphragms material, fill fluid, range limit,

serial number, maximum process working pressure (PS) and

temperature (TS).

Please refer to the serial number when making enquiries to ABB

service department.

The optional additional SST Tag plate (ref. C - code I2) also

provides customer tag number and calibrated range.

The instrument may be used as a pressure accessory (category III)

as defined by the Pressure Equipment Directive 97/23/EC. In this

case, near the CE mark, you will find the number of the notified

body (0474) that have verified the compliance. 266 pressure

transmitters are in compliance with EMC 2004/108/CE*.

The certification plate (ref.A) shown here is issued by ABB S.p.A,

22016 Lenno, Italy, with the numbers:

— FM09ATEX0023X or IECEx FME 09.0002X (Ex d)

— FM09ATEX0024X or IECEx FME 09.0003X (Ex ia)

— FM09ATEX0025X or IECEx FME 09.0004X (Ex nL)

CE-Identiﬁcation number of the notiﬁed bodies to Pressure Equipment

Directive: 0474, to ATEX certiﬁcation: 0722, to IECEx certiﬁcation: IT/

CES/QAR07.0001/02.

The certification plate (ref.A) shown here may also be issued for

ABB-APR, 32425 Minden, Germany, with the numbers:

— FM09ATEX0068X or IECEx FME 09.0002X (Ex d)

— FM09ATEX0069X or IECEx FME 09.0003X (Ex ia)

— FM09ATEX0070X or IECEx FME 09.0004X (Ex nL)

CE-Identiﬁcation number of the notiﬁed bodies to Pressure Equipment

Directive: 0045, to ATEX certiﬁcation: 0044, to IECEx certiﬁcation: DE/

TUN/QAR06.0012/01.

The same certification plate (ref.A) can be issued for ABB Limited,

121 001 Faridabad, India, with the numbers:

— FM11ATEX0035X (Ex ia)

— FM11ATEX0036X (Ex d)

— FM11ATEX0037X (Ex nL)

CE-Identiﬁcation number of the notiﬁed bodies to ATEX certiﬁcation:

0359.

ABB Engineering Limited, Shanghai 201319, P.R. China, can issue

this certiﬁcation plate (ref. A), as well. The numbers are:

— FM11ATEX0046X or IECEx FMG 11.0019X (Ex ia)

— FM11ATEX0047X or IECEx FMG 11.0018X (Ex d)

— FM11ATEX0048X or IECEx FMG 11.0020X (Ex nL)

CE-Identiﬁcation number of the notiﬁed bodies to ATEX certiﬁcation:

1725.

Figure 1: Product identiﬁcation

Local keys below label

PRODUCT CODE

SEAL-H

SEAL-L

SPEC.REQUEST

LRL/URL

SPAN LIMITS

POWER SUPPLY

OUTPUT SIGNAL

ABB S.p.A.

Made in Italy

TS

PS

SERIAL\NUMBER

SENSOR DIAPH.-FILL

FLANGE/CONN.-GASKET/S

H DIAPH.-FILL

L DIAPH.-FILL

SEAL

HW Rev.

MD:

PED:

MWP/OVP

IS/Sec. Intrinseque (Entity) CL I, ZONE 0 AEx/Ex ia IIC T6,T5,T4

CL I/DIV1/GP ABCD IS - CL II/DIV1/GP EFG - CLIII DIV1 when

conn. per dwg DH 3173 ENCL 4X "FISCO Field Instrument"-"DUAL SEAL"

II 1 G Ex ia IIC T6 - II 1/2 G Ex ia IIC T6 -

II 1 D Ex iaD 20 T85°C and II 1/2 D Ex iaD 21 T85°C

for electrical parameters see cert. FM09ATEX0024X

IP67 - IECEx FME09.0003X "FISCO Field Instrument"

II 3 G Ex nL IIC T6 - II 3 D Ex tD A22 IP67 T85°C

Ui = 42Vdc Ii < 25mA Ci < 13nF Li < 0,22mH

for electrical parameters see cert. FM09ATEX0025X

IECEx FME09.0004X "FNICO Field Instrument"

General Purpose IP67 Max.Supply Voltage 42 Vdc

XP (US) CL I/DIV1/GP ABCD, DIP CL II, III /DIV1/GP EFG,

XP (Canada) CL I/DIV1/GP BCD, DIP CL II, III /DIV1/GP EFG,

CL I, ZONE 1, AEx/Ex d IIC T4 -50°C<Ta<+85°C

ENCL 4X T AMB=85°C "Seal not required" - "DUAL SEAL"

ABB S.p.A.

Lenno (Co) Italy

0474

0722

APPROVED

FM

II 1/2 G Ex d IIC T6 - II 1/2 D Ex tD A21 IP67

T85°C FM09ATEX0023X - IECEx FME09.0002X

(-50°C<Ta<+75°C) POWER SUPPLY 42 Vdc/2W Max

CUS

CL I, ZONE 2 AEx nC IIC T6,T5,T4

CL I, ZONE 2 Ex nL IIC T6,T5,T4

CL I/DIV2/GP ABCD NIFW when connected per drawing

DH 3173 ENCL 4X "FNICO Field Instrument" - "DUAL SEAL"

APPROVED

FM

CUS

APPROVED

FM

CUS

2600T

Tag

Number

Calib.

Range

PRESSURE TRANSMITTER

* C and F sensors on gauge and absolute pressure transmitters are in compliance with IEC61000-4-6 with B criteria

Ref. B

Ref. C

Ref. A

4 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

2 Safety

2.1 General

Read this instruction carefully prior to installation and commissioning.

For reasons of clarity, the instructions do not contain all details on all

types of product and do therefore not take into account every

conceivable case of assembly, operation or maintenance. If you want

further information or if special problems arise which are not treated in

detail in the instructions, please ask the manufacturer for the

necessary information.

Moreover we would like to point out that the content of these

instructions is neither part of nor provided for changing a previous or

existing agreement, promise or legal relationship.

All obligations of ABB Instrumentation result from the respective sales

contract which also comprises the complete and solely valid warranty

clauses. Such contractual warranty clauses will neither be limited nor

extended by the content of these instructions.

Observe warning signs at packaging, etc.

For assembly, electrical connection, commissioning and maintenance

of the transmitter, only qualiﬁed and authorized specialists are to be

employed, because they are experienced in the assembly, electrical

connection, commissioning and operation of the transmitter or similar

devices holding the necessary qualiﬁcations for their job, e.g.:

− Training or instruction and/or authorization to operate and

maintain devices/systems according to the safety engineering

standard for electric circuits, high pressures and aggressive

media.

− Training or instruction according to the safety engineering

standard regarding maintenance and use of adequate safety

systems.

For the sake of your own safety, we draw your attention to the fact

that for the electrical connection, only sufﬁciently isolated tools acc. to

EN 60 900 may be used.

Furthermore consider the following regulations:

− The pertinent safety regulations concerning the construction and

operation of electrical installations, e.g. the rule regarding

technical working material (safety rule for instruments), have to be

observed.

− The pertinent standards.

− The regulations and recommendations relating to explosion

protection if explosion-proof transmitters are to be installed.

− The safety raccomandation if installed in a SIL loop as described

in the Safety Manual (please look at the end of this manual)

The device can be operated with high pressure and aggressive media.

Serious injury and/or considerable material damage can therefore be

caused when this device is handled incorrectly. Please observe the

pertinent national rules when using pressure transmitters.

2.2 Transportation

After ﬁnal calibration, the instrument is packed in a carton intended to

provide protection from physical damage.

2.3 Handling

The instrument does not require any special precautions during

handling although normal good practice should be observed.

2.4 Storage

The instrument does not require any special treatment if stored as

dispatched and within the speciﬁed ambient conditions. There is no

limit to the storage period, although the terms of guarantee remain as

agreed with the Company and as given in the order

acknowledgement.

2600T Series Pressure transmitters | SOI/266-XC Rev. I 5

3 Installation

3.1 General

Warning.

For installation in Hazardous Areas, i.e. areas with dangerous

concentrations of e.g. gases or dusts that may explode if ignited, the

installation must be carried out in accordance with relative standards

either EN 60079-14 and/or with local authority regulations, for the

relevant type of protection adopted.

In order to ensure operator safety and plant safety it is essential that

installation is carried out by suitably trained personnel according to the

technical data provided in the speciﬁcation for the relevant model. To ﬁnd

out the “Operative limits” please refer to the dedicated chapter of the

instruction manual and datasheets.

The transmitter should not be installed where it may be subjected to

mechanical and thermal stresses or where it may be attached by existing

or foreseeable aggressive substances. ABB cannot guarantee that a

construction material is suited to a particular process ﬂuid under all

possible process conditions. Fill ﬂuids and wet parts materials selection is

under user’s full responsibility

.

Caution. Proper location of the transmitter with respect to the process

pipe will depend upon the service for which the instrument is used. Care

should be exercised to identify correct process connections.

Important. In differential pressure transmitters the high side is marked with

“H” or “+” and low side with “L” or “–”.

Before mounting the transmitter, check whether the model meets the

measurement and safety requirements of the measuring point, e.g., with

regard to materials, pressure rating, temperature, explosion protection and

operating voltage. The relevant recommendations, regulations, standards

and the rules for prevention of accidents must also be observed!

Measurement accuracy is largely dependent upon correct installation

of the transmitter and the related measurement piping. The measuring

set-up should be screened as much as possible from critical ambient

conditions such as major temperature variations, vibration and shock.

For example, if ambient conditions may change considerably as a

result of locating the transmitter near a building structure, this may

inﬂuence the measurement quality!

3.2 Transmitter

The transmitter can be ﬂanged directly to the shut-off valve. A

mounting bracket for wall or pipe mounting (2” pipe) available as an

accessory. Mount the transmitter in such a way that the process

ﬂange axes are vertical (horizontal in case of barrel-type aluminum

housing) in order to avoid zero shifts.

If the transmitter is installed at an incline, the hydrostatic pressure of

the ﬁlling ﬂuid would exert pressure on the measuring diaphragm and

thus cause a zero shift! A zero point correction would then be

necessary. Pressure transmitters can be mounted in any position. Seal

unconnected process connections on the sensor with the enclosed

screw plugs (1/4-18 NPT). For this purpose, use your ofﬁcially

approved sealing material.

3.3 Hazardous area considerations

The transmitter must be installed in hazardous area only if it is properly

certiﬁed. The certiﬁcation plate is permanently ﬁxed on the neck of the

transmitter top housing.

The 266 Pressure Transmitter Line can have the following

certiﬁcations:

ATEX INTRINSIC SAFETY

— II 1 G Ex ia IIC T4/T5/T6 and II 1/2 G Ex ia IIC T4/T5/T6

— II 1 D Ex iaD 20 T85°C and II 1/2 D Ex iaD 21 T85°C

ATEX EXPLOSION PROOF

— II 1/2 G Ex d IIC T6 and II 1/2 D Ex tD A21 IP67 T85°C

ATEX TYPE “N” / EUROPE:

— II 3 G Ex nL IIC T4/T5/T6 and II 3 D Ex tD A22 IP67 T85°C

COMBINED ATEX, ATEX FM and FM Canada

— See detailed classiﬁcations

FM Approvals US and FM Approvals Canada:

— Explosionproof (US): Class I, Div. 1, Groups A, B, C, D

— Explosionproof (Canada): Class I, Div. 1, Groups B, C, D

— Dust ignitionproof: Class II, Div. 1, Groups E, F, G

— Nonincendive: Class I, Div. 2, Groups A, B, C, D

— Intrinsically safe: Class I, II, III, Div. 1, Groups A, B, C, D, E, F, G

— Class I, Zone 0, AEx ia IIC T6/T4 (FM US)

— Class I, Zone 0, Ex ia IIC T6/T4 (FM Canada)

IEC (Ex):

— See detailed classiﬁcations

INTRINSIC SAFETY/CHINA

— NEPSI approval Ex ia IIC T4-T6

FLAMEPROOF/CHINA

— NEPSI approval Ex d IIC T6

GOST (Russia), GOST (Kazakistan), Inmetro (Brazil)

— based on ATEX.

Warning. Explosion-proof transmitters must be either reapired by the

manufacturer or approved by a certiﬁed expert following repair work.

Observe the relevant safety precautions before, during and after repair

work.

6 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

3 Installation

Local keys below label

PRODUCT CODE

SEAL-H

SEAL-L

SPEC.REQUEST

LRL/URL

SPAN LIMITS

POWER SUPPLY

OUTPUT SIGNAL

ABB S.p.A.

Made in Italy

TS

PS

SERIAL\NUMBER

SENSOR DIAPH.-FILL

FLANGE/CONN.-GASKET/S

H DIAPH.-FILL

L DIAPH.-FILL

SEAL

HW Rev.

MD:

PED:

MWP/OVP

Figure 2: 266 nameplate with PED data

3.4 Pressure Equipment Directive (PED) (97/23/CE)

3.4.1 Devices with PS >200 bar

Devices with a permissible pressure PS >200 bar have been subject

to a conformity validation. The data label includes the following

speciﬁcations:

3.4.2 Devices with PS <200 bar

Devices with a permissible pressure PS <200 bar correspond to article

3 paragraph (3). They have not been subject to a conformity

validation. These instruments were designed and manufactured acc.

to SEP Sound Engineering Practices.

3.5 Transmitter housing rotation

To improve ﬁeld access to the wiring or the visibility of the optional

LCD meter, the transmitter housing may be rotated through 360° and

ﬁxed in any position. A stop prevents the housing from being turned

too far.

In order to proceed with housing rotation, the housing stop tang-

screw has to be unscrewed by approximately 1 rotation (do not pull it

out) and, once the desired position has been reached, retightened.

Figure 3: Housing rotation

3.6 Integral display rotation

In case an optional integral display meter is installed, it is possible to

mount the display in four different positions rotated clockwise or

counterclockwise with 90° steps.

Figure 4: LCD rotation

3.7 Impulse piping connection for standard

instruments

In order for the pipes to be laid correctly, the following points must be

observed:

− The measuring pipes must be as short as possible and free from

sharp bends.

− Lay the impulse piping in such a way that no deposits can

accumulate in them. Gradients should not be less than approx.

8% (ascending or descending).

− The measuring pipes should be blown through with com pressed

air or, better yet, ﬂushed through with the measuring medium

before connection.

− Where a ﬂuid/vaporous measuring medium is being used, the

liquid in both measuring pipes must be at the same level. If a

separating liquid is being used, both measuring pipes must be

ﬁlled to the same level (266Dx and 266Mx).

− Although it is not absolutely necessary to use balancing vessels

with vaporous measuring media, measures must be taken to

prevent steam entering the measuring chambers of the

measuring equipment (266Dx and 266Mx).

− It may be necessary to use condensate vessels, etc., with small

spans and vaporous measuring media (266Dx and 266Mx).

− If using condensate vessels (steam measurement), you should

ensure that the vessels are at the same elevation in the differential

pressure piping (266Dx and 266Mx).

− As far as possible, keep both impulse lines at the same

temperature (266Dx and 266Mx).

− Completely depressurize the impulse lines if the medium is a ﬂuid.

− Lay the impulse lines in such a way that gas bubbles (when

measuring ﬂuids) or condensate (when measuring gases) can

ﬂow back into the process line.

− Ensure that the impulse lines are connected correctly (High and

Low pressure sides connected to measuring equipment, seals,

etc.).

− Make sure the connection is tight.

− Lay the impulse line in such a way that prevents the medium from

being blown out over the measuring equipment.

To rotate the LCD, simply open the windowed cover (Hazardous area

prescriptions must be respected), pull-out the display housing from

the communication board. Reposition the LCD connector according

to the new desired position. Push back the LCD module on the

communication board. Be sure that the 4 plastic ﬁxing locks are

properly in place.

2600T Series Pressure transmitters | SOI/266-XC Rev. I 7

3 Installation

3.8 Electrical connection

The relevant guidelines must be observed during the electrical

installation! Since the transmitter has no switch-off elements, it is

important to provide the possibility of disconnecting the power main

or providing over-current protection devices on the system side (over

voltage protection may be selected as a transmitter option).

An open cover does not provide a protection against accidental

contact. Do not touch any conductive components.

Check that the existing operating voltage corresponds to that

indicated on the type plate. For power supply and output signal, the

same lines are used. Use the enclosed connection diagram!

The electrical connection is made via cable entry 1/2-14 NPT or M 20

x 1.5 (or via optional plug Han 8 U).

Important. The red plugs are to be removed when the transmitter is

installed in Hazardous area. They are not explosion proof certiﬁed

products.

To ensure the Type 4X and IP 67 degree of protection for transmitter

according to Canadian Standard CSA, the conduit must be screwed

into the housing 1/2” NPT female using a suitable sealing compound.

The blanking plug has been sealed with Molykote DX, the use of any

other sealing compound is done so at owners own risk.

3.8.1 Electrical requirements – HART

The transmitter operates on a minimum voltage of 10.5 Vdc to a

maximum of 42 Vdc and is protected against polarity inversion.

Installing optional devices the minimum voltage increases to:

— 10.5 Vdc with no option or with integral digital display links

— 12.3 Vdc with surge protection

The total loop resistance is the sum of the resistance of all elements of

the loop, including wiring, conditioning resistor, safety barriers and

additional indicators (excluding the equivalent resistance of the

transmitter). Where a conﬁguration device (HART), such as the Hand

Held Communicator or a Modem is likely to be used, a resistance of

250 ohm minimum should be present between the power supply and

the point of insertion of these devices, to allow communication.

Several types of safety barriers, either passive or active, can be

satisfactorily used in conjunction with the Smart 2600T transmitter.

Nevertheless, in case of use of active barriers, check with the supplier

if the model is suitable for use with smart transmitters allowing the

connection of the conﬁguration devices in the “safe” or non-hazardous

area.

3.8.2 Electrical requirements – PROFIBUS PA

PROFIBUS-PA transmitters are provided for the connection to

segment couplers DP/PA. The permissible voltage at the terminals is

DC 9 - 32 V (9 - 17,5 V for FISCO). The current is approx. 15 mA

(average; sending). A shielded cable is recommended.

Contacting of the shield is done in the metal screwing. The transmitter

must be grounded; the shield must be grounded as well only at one

point. For further information, please refer to PROFIBUS PA installation

guide. When operating with an Ex-segment coupler, the max number

of devices may be reduced by a time-dependent current limitation.

The output signal of the transmitter is transferred digitally according to

IEC 61158-2.

The instrument is compliant to Proﬁle 3.02. Its Identiﬁcation No. is

3450 HEX. During cyclic data trafﬁc, the OUT variable is transmitted. It

is composed of the output value and 1 byte status information. The

output value is transmitted with 4 bytes as IEEE-754

Floating-Point-Type.

3.8.3 Electrical requirements – FOUNDATION Fieldbus

Foundation Fieldbus transmitters are provided for the connection to

H1 BUS.

The permissible voltage at the terminals is DC 9 - 32 V

(9 - 17,5 V for FISCO). The current is approx. 15 mA (average;

sending). A shielded cable is recommended. Contacting of the shield

is done in the metal screwing. The transmitter must be grounded; the

shield must be grounded as well only at one point. For further

information, please refer to FOUNDATION Fieldbus installation guide.

When operating with an Ex-application, the maximum number of

devices may be reduced by a time-dependent current limitation.

The output signal of the transmitter is transferred digitally according to

IEC 61158-2. FF transmitter is registered as link master device

according to FF speciﬁcation Version 1.7. There are different ways of

displaying and performing conﬁguration on Fieldbus FOUNDATION

devices. DD (Device Description) and DD methods allow transmitter

conﬁguration and data displaying across platforms.

3.9 Protective conductor / grounding

The transmitter operates within the speciﬁed accuracy with common

mode voltages between the signal lines and the housing up to 250 V.

In order to fulﬁll the requirements of the low-voltage guidelines and the

relevant EN 61010 rules for the installation of electrical components,

the housing must be provided with a protective circuit (e.g. grounding,

protective conductor) if voltages of >150 VDC could occur. A

connection terminal is available for grounding (PE) on the transmitter

exterior and also in the plug. Both terminals are electrically

interconnected.

3.10 Transmitter with integrated Surge Protector

Use a short wire to connect the transmitter housing via the earthing

connection (PA) to potential equalization. Potential equalization (min.

4mm²) is necessary over the entire wiring.

8 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

3 Installation

3.11 Wiring

Follow these steps to wire the transmitter:

− Remove the cap from one of the two electrical connection ports

located at both sides in the upper part of the transmitter housing.

− These connection ports have a 1/2 inch internal NPT threads.

Various adaptors and bushings can be ﬁtted to these threads to

comply with plant wiring (conduit) standards.

− Remove the housing cover of “ﬁeld terminals”, side. In an

Explosion-Proof/Flame-Proof installation, do not remove the

transmitter covers when power is applied to the unit.

− Run wiring through the open port and connect the positive lead

to the + terminal, and the negative lead to the – terminal.

Important. Do not connect the power across the Test terminals. Power

could damage the test diode in the test connection.

− Plug and seal the electrical ports. Make sure that when the

installation has been completed, these openings are properly

sealed against entry of rain and corrosive vapors and gases. In

particular, for Ex-d (Explosion Proof) installation, plug the unused

opening with a plug suitable/certiﬁed for explosion containment.

− If applicable, install wiring with a drip loop. Arrange the drip loop

so the bottom is lower than the conduit connections and the

transmitter housing.

− Put back the housing cover, turn it to seat O-ring into the housing

and then continue to hand tighten until the cover contacts the

housing metal-to-metal. In Ex-d (Explosion Proof) installation, lock

the cover rotation by turning the set nut (use the 2 mm Allen key

supplied with the instrument).

Figure 5: 266 HART terminal block

Figure 6: 266 PROFIBUS PA / FOUNDATION

Fieldbus terminal block

2600T Series Pressure transmitters | SOI/266-XC Rev. I 9

4 Transmitter conﬁguration

4 Transmitter configuration

4.1 Output 4…20 mA/HART communication

Use power supply units or batteries which ensure a permanent

operating voltage of DC 10,5 V ...42 V for the transmitter. Consider

the resistance of the signal receiver (e.g. display) is looped into the

signal circuit and the max. current of 20 ... 22mA, caused by over

modulating.

We recommend using screened, pair wise twisted signal cables. Do

not place these cables close to other cables (with inductive load) or

close to other electrical devices.

4.2 Minimum configuration hints for PROFIBUS PA

transmitters

The minimum conﬁguration for having AI working needs at least the

following settings:

Pressure Transducer Block:

− SCALE_IN: Calibration range (Eng. Units for pressure only)

− LIN_TYPE: Linear, Square Root, Cylindrical Lying Container,

Spherical Container, Square Root 3° pow, Square Root 5° pow,

Bidirectional Flow and 22 points table.

Analog Input Block:

− OUT_SCALE: Output range (all allowed Eng. Units)

− PV_SCALE = OUT_SCALE

4.3 Minimum configuration hints for FOUNDATION

Fieldbus transmitters

The minimum conﬁguration for having AI working and/or

moving out from the Out Of Service (OOS) mode needs at least

the following settings:

− CHANNEL: 1=pressure; 2=sensor temperature; 3=static pressure

− XD_SCALE: Calibration range (Units for pressure only)

− OUT_SCALE: Output range (all allowed Eng. Units)

− L_TYPE: Direct, Indirect or Square Root

Important. For more detailed information about conﬁguration and

troubleshooting of FOUNDATION Fieldbus devices, please refer to the

complete “Operating Instruction” available online at www.abb.com.

If the AI Block cannot be removed from OOS mode, please refere to

the below table:

Possible causes Solution

The target mode is set to

OOS

Set the target mode to something different by

OOS

The Configuration Error

bit is set in the

BLOCK_ERR

CHANNEL different by 0

Set L_Type correctly

Set XD_SCALE unit = TPB Primary Value Range

Unit

The RESOURCE BLOCK

is not in AUTO mode

Set the Target Mode of the RESOURCE

BLOCK to AUTO mode

The Block is not

scheduled

Design the FB Application correctly and

download it to the devices

4.4 Set the PV to Zero

(for Profibus and FOUNDATION Fieldbus)

After conﬁguring the transmitters according to the communication

protocol, it is necessary to set the PV value to zero.

This operation is tipically used for correction of the mounting position

and other inﬂuences (line pressure effects).

To carry out this correction the transmitter should be pressure-free,

(the connections should be pressure-free or short-circuited).

The PV value can be zeroed by using “set PV to Zero” inside DTM or

EDD parametrization menus.

4.5 How to set the zero

The following procedures do not affect the physical pressure shown

(PV VALUE); they only correct the analog output signal. For this

reason, the analog output signal may differ from the physical pressure

value (PV) shown on the digital display or the communication tool. In

case the plant procedure requires to correct this, set the

communication board dip switch nr.3 in 1 (up) position before

performing the below procedures.

4.5.1 Zero based calibrated devices

(eg. 4 .. 20 mA = 0 .. 250 mbar)

The below procedure has not to be followed when dealing with

absolute pressure transmitters (266Axx/VxH/NxH/RxT)

1. Insulate the transmitter from the process and vent the transmitter

measuring chamber/s to atmosphere.

2. Check the output signal of the transmitter, if it is at 4 mA (or

PV=0) you do not need to re-zero the transmitter; if the output is

not at zero follow the below procedure:

Unscrew the data plate ﬁxing screw on the top of the

transmitter housing.

Rotate the data plate to get access to the push buttons.

Be sure that the write protection rotating switch is set to

write enable.

Push the zero (Z) button on top of the transmitter for at least

3 seconds.

The output will go to 4 mA, and if the Integral Display is

present, the message “OPER DONE” will appear. If nothing

happens check the write protection rotating switch, it is

probably set to write disable. In case of other diagnostic

messages, refer to the instruction.

3. Once the “Zero” operation has been accomplished the

transmitter needs to be reconnected to the process.

4. Close the vent / drain valves that may have been opened

5. Open the insulation valve/s (in case of differential pressure

transmitters please follow the following sequence:

open high pressure side insulation valve,

open low pressure side insulation valve,

close equalizing valve.

10 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

4 Transmitter conﬁguration

4.5.2 Absolute pressure transmitter re-zeroing

Absolute pressure transmitter rezeroing is only possible when a

vacuum pressure generator is available. It is strongly recommended to

refer to the integral manual before proceeding.

4.5.3 Non-zero based calibrated devices

(eg 4 .. 20 mA = - 100 .. 100 mbar)

1. Insulate the transmitter from the process and vent the transmitter

measuring chamber/s to atmosphere.

2. Apply the lower range value pressure (4 mA) from the process or

from a pressure generator. The pressure must be stable and

applied with a high level of accuracy < 0.05 % (observing the set

damping value).

3. Check the output signal of the transmitter, if it is at 4 mA (or PV=

0) you do not need to re-zero the transmitter; if the output is not

at zero follow the below procedure:

Unscrew the data plate ﬁxing screw on the top of transmitter

housing.

Rotate the data plate to get access to the push buttons.

Be sure that the write protection rotating switch is set to

write enable.

Push the zero (Z) button on top of the transmitter for at least

3 seconds.

The output will go to 4 mA, and if the Integral Display is

present, the message “OPER DONE” will appear. If nothing

happens check the write protection rotating switch, it is

probably set to write disable. In case of other diagnostic

messages, please refer to the instruction.

4. Once the “Zero” operation has been accomplished the

transmitter needs to be reconnected to the process.

5. Close the vent / drain valves that may have been opened

6. Open the insulation valve/s (in case of differential pressure

transmitters please follow the following sequence:

open high pressure side insulation valve,

open low pressure insulation valve,

close equalizing valve.

Important. It is not necessary to remove the cover for this procedure (Dip

switch are already factory set)

Figure 7: External pushbuttons

4.6 Hardware settings

4.6.1 Advanced HART

There are 6 dip switches located on this kind of secondary electronics.

Switch 1 and 2 allow the REPLACE MODE for sensor or secondary

electronics.

Switch 3 identiﬁes the external push buttons functionalities: Zero/Span

adjustments or PV Bias-Offset / PV Bias Reset.

Switch 4 and 5 are for Fail Low/Fail High selection.

Switch 6: not used.

The electronic label clearly explains how to perform all the possible

selection, but please remember that all the operations with the dip

switches should be carried out when the transmitter is powered off so

as to upload new conﬁgurations at instrument start-up.

Replace mode (switch 1 and 2)

Usually switches 1 and 2 are down in “0” position.

They are moved when a replace operation is required.

Switch 1 up in “1” position is required before power up the transmitter,

when user needs to replace the electronics or the sensor.

Switch 2 down in “0” position allows the replace of the secondary

electronics. It must be moved in this position before power up the

transmitter.

Switch 2 up in “1” position indicates that a new sensor has been

installed.

AFTER ANY REPLACE OPERATION IT IS RECOMMENDED TO

MOVE DOWN IN “0” POSITION THE RELEVANT SWITCHES.

Push buttons mode (switch 3)

Dip switch 3 is set at the factory on “0” position. This means that the

external push buttons perform the zero/span adjustments. If the user

puts this switch on “1” position, the zero push buttons will modify the

PV Bias-Offset and the span push button will reset the PV Bias-Offset

value.

Fail mode (switch 4 and 5)

Should the user modify the factory-deﬁned parameters for the fail safe

output condition in case of transmitter failure, it is necessary to enable

the modiﬁcation by putting dip switch 4 on “1” position. Consequently,

it is necessary to choose whether the output has to go Upscale or

Downscale. Dip switch 5:

on “0” position the output is High (22mA)

on “1” position the output is Low (3,7mA)

2600T Series Pressure transmitters | SOI/266-XC Rev. I 11

4 Transmitter conﬁguration

4.6.2 Standard HART

Standard HART protocol is available on 266DSH, 266PSH, 266VSH,

266HSH (with the exeption of ranges V and Z), 266NSH (and the

relevant direct-mounted or remote diaphragm seal versions) as well as

on 266DHH and 266DLH. Standard HART protocol connection board

features 4 dip switches.

Switch 1 and 2 are for Fail Low/Fail High selection.

Switch 3 identiﬁes the external push buttons functionalities: Zero/Span

adjustments or PV Bias-Offset / PV Bias Reset.

Switch 4 allows user to enable the write protection.

Dip switch functions are the same as here above.

In addition, 266 standard HART connection board can the Zero and

Sapn pushbuttons (in case not conﬁgured during the codiﬁcation

process). This buttons work exactly like the external ones located

under the instrument stainless steel nameplate and they can perform

Zero and Span adjustments as well as PV Bias and Offset (if the

proper dip switch is positioned correctly).

4.6.3 PROFIBUS PA

There are 3 dip switches located on this kind of secondary electronics

(as indicated by the ﬁgure); they are used for settings when integral

display is not available.

Switch 1 and 2 allow the REPLACE MODE for sensor or secondary

electronics.

Switch 3 identiﬁes the external push buttons functionalities: Zero/Span

adjustments or PV Bias-Offset / PV Bias Reset.

The electronic label clearly explains how to perform all the possible

selection, but please remember that all the operations with the dip

switches should be carried out when the transmitter is powered off so

as to upload new conﬁgurations at instrument start-up.

Replace mode (switch 1 and 2)

Usually switches 1 and 2 are down in “0” position.

They are moved when a replace operation is required.

Switch 1 up in “1” position is required before power up the transmitter,

when user needs to replace the electronics or the sensor.

Switch 2 down in “0” position allows the replace of the secondary

electronics. It must be moved in this position before power up the

transmitter.

Switch 2 up in “1” position indicates that a new sensor has been

installed.

AFTER ANY REPLACE OPERATION IT IS RECOMMENDED TO MOVE

DOWN IN “0” POSITION THE RELEVANT SWITCHES.

Push buttons mode (switch 3)

Dip switch 3 is set at the factory on “0” position. This means that the

external push buttons perform the zero/span adjustments. If the user

puts this switch on “1” position, the zero push buttons will modify the

PV Bias-Offset and the span push button will reset the PV Bias-Offset

value.

4.6.4 FOUNDATION Fieldbus

There are 4 dip switches located on this kind of secondary electronics

(as indicated by the ﬁgure); they are used for settings when integral

display is not available.

Switch 1 and 2 allow the REPLACE MODE for sensor or secondary

electronics.

Switch 3 identiﬁes the external push buttons functionalities: Zero/Span

adjustments or PV Bias-Offset / PV Bias Reset.

Switch 4 for performing the Simulation mode. The electronic label

clearly explains how to perform all the possible selection, but please

remember that all the operations with the dip switches should be

carried out when the transmitter is powered off so as to upload new

conﬁgurations at instrument start-up.

Replace mode (switch 1 and 2)

Usually switches 1 and 2 are down in “0” position.They are moved

when a replace operation is required. Switch 1 up in “1” position is

required before power up the transmitter, when user needs to replace

the electronics or the sensor.

Switch 2 down in “0” position allows the replace of the secondary

electronics. It must be moved in this position before power up the

transmitter. Switch 2 up in “1” position indicates that a new sensor

has been installed.

AFTER ANY REPLACE OPERATION IT IS RECOMMENDED TO MOVE

DOWN IN “0” POSITION THE RELEVANT SWITCHES.

Push buttons mode (switch 3)

Dip switch 3 is set at the factory on “0” position. This means that the

external push buttons perform the zero/span adjustments. If the user

puts this switch on “1” position, the zero push buttons will modify the

PV Bias-Offset and the span push button will reset the PV Bias-Offset

value.

Simulation mode (switch 4)

Dip switch 4 in “1” position enables the Simulation mode. This feature

is available in order to initialize all the parameters requiring a well

deﬁned value, with the default values congruent to the connected

sensor type/model. This operation can be performed before powering

on the device. Many variables of the AI and TPB are properly set with

values strictly related to the connected transducer type.

4.7 Easy set-up

The easy set-up procedure is made possible thanks to the intuitive

HMI, connected on the transmitter communication board. To navigate

the 266 HMI please follow the various indications that will appear on

the bottom of the display.

To facilitate commissioning the 266 HMI has the capability to run a

sequence of predeﬁned setup steps with the main conﬁguration

settings. When you start the Easy Setup you must continue up to the

end to exit.

4.7.1 To start the Easy Set-up

Navigate the Digital LCD Integral Display menu, push the button on

the right under the LCD display.

12 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

4 Transmitter conﬁguration

4.7.2 Define the language

If the desired language is different from the indicated language select

Edit then scroll the desired language (see the following table) with the

up and down keys and conﬁrm with OK. Select Next to continue.

English German Italian French Spanish

4.7.3 Insert tag

If the Tag number of the instrument is different from the value set in

the factory, use this part of the easy set-up menu to change it.

4.7.4 Define the PV Unit

If the desired Process Variable Unit is different from the indicated,

select Edit then scroll the desired unit (see the following table) with the

up and down keys and conﬁrm with OK. Select Next to continue.

mbar millibar

mmH2O°C millimeter of water at 4 degrees Celsius

g/cm2 grams per square centimeter

inH2O°F inches of water at 68 degrees Fahrenheit (20°C)

Kg/cm2 kilo grams per square centimeter

inHg°C inches of mercury at 0 degrees Celsius

Pa pascal

ftH2O°F feet of water at 68 degrees Fahrenheit

kPa kilopascal

mmH2O°F millimeter of water at 68 degrees Fahrenheit

torr torr

mmHg°C millimeter of mercury at 0 degrees Celsius

atm atmosphere

psi pounds per square inch

MPa Megapascal

bar bars

inH2O°C inches of water at 4 degrees Celsius

4.7.5 Define the PV Lower Range Value (LRV)

If the desired LRV is different from the indicated select Edit, scroll the

desired value for the digit in reverse color with the up and down keys

and conﬁrm with Next. Repeat the operation for the seven digits and

conﬁrm with OK. Select Next to continue.

4.7.6 Define the PV Upper Range Value (URV)

If the desired URV is different from the indicated select Edit, scroll the

desired value for the digit in reverse color with the up and down keys

and conﬁrm with Next. Repeat the operation for the seven digits and

conﬁrm with OK. Select Next to continue.

4.7.7 Define the linearization type

If the desired linearization type is different from the indicated select

Edit then scroll the desired linearization type (see the following table)

with the up and down keys and conﬁrm with OK. Select Next to

continue.

4.7.8 Define the SQRT linear point

If the desired SQRT linear point is different from the indicated select

Edit, scroll the desired value with the up and down keys and conﬁrm

with Next. Repeat the operation for the ﬁve digits and conﬁrm with

OK. Select Next to continue.

4.7.9 Define the low flow cut off

If the desired low ﬂow cut off for a ﬂow transfer function is different

from the indicated select Edit, scroll the desired value for the digit in

reverse colour with the up and down keys and conﬁrm with Next.

Repeat the operation for the ﬁve digits and conﬁrm with OK. Select

Next to continue.

Important. In case of PA or FF pressure transmitters, please consider as

mandatory the following steps.

4.7.10 Deﬁne the OUT unit

If the desired outup unit is different from the indicated, select Edit then

scroll the desired unit (all allowed Eng. Units) with the up and down

keys and conﬁrm with OK. Select Next to continue.

4.7.11 Define the OUT Lower Range Value (LRV)

If the desired LRV is different from the indicated select Edit, scroll the

desired value for the digit in reverse color with the up and down keys

and conﬁrm with Next. Repeat the operation for the seven digits and

conﬁrm with OK. Select Next to continue.

4.7.12 Define the OUT Upper Range Value (URV)

If the desired URV is different from the indicated select Edit, scroll the

desired value for the digit in reverse color with the up and down keys

and conﬁrm with Next. Repeat the operation for the seven digits and

conﬁrm with OK. Select Next to continue.

4.7.13 Define the damping

If the desired damping is different from the indicated value change it

with the up and down keys and conﬁrm with OK.

4.7.14 Set PV to zero

In case a zero scaling is required apply the pressure for the zero and

select OK. Wait for the auto-set end (the bargraph will indicate the

working progress). Select Next to continue.

4.7.15 Define Hmi line 1 view

By using this parameter you can chose what to see on the ﬁrst line of

the Human Machine Interface. To change the value to be shown,

select Edit, scroll the desired value for the digit in reverse color with

the up and down keys and conﬁrm with Next.

Important. The minimum and maximum allowed values are indicated on

the display.

2600T Series Pressure transmitters | SOI/266-XC Rev. I 13

5 Applications

5.1 Steam (condensable vapor) or clean liquids flow

measurement

− Place taps to the side of the line.

− Mount beside or below the taps.

− Mount the drain/vent valve upward.

In case of steam application ﬁll the vertical section of the connecting

lines with a compatible ﬂuid through the dedicated ﬁlling tees because

the process ﬂuid must enter the transmitter measuring chambers.

Then:

− Open equalizing valve (C);

− Close low pressure (B) and high pressure (A) valves;

− Open gate valves;

− Slowly open high pressure (A) valve to admit process ﬂuid to both

sides of primary;

− Vent or drain the primary unit and then close the valves;

− Open the (B) valve and close the equalizing valve.

Figure 8: Steam or clean liquid ﬂow measurement

5.2 Gas or liquid (with solids in suspension) flow

measurement

− Place the taps to the top or side of the line.

− Mount the transmitter above the taps.

The process ﬂuid must enter the transmitter primary:

− Open equalizing valve (C),

− Close low pressure (B) and high pressure (A) valves,

− Open gate valves,

− Slowly open high pressure (A) valve to admit process ﬂuid to both

sides of primary,

− Vent or drain the primary unit and then close the valves,

− Open the (B) valve and close the equalizing valve.

Figure 9: Gas or liquid ﬂow measurement

Caution. Manifolds can be supplied both mounted on pressure

transmitters and loose. In case of integral mounting, consider that:

− All adjustments should be carried out by qualiﬁed personnel

with the valve without pressure.

− End connections must not be removed from the body.

− Do not use handle wrenches or extensions to operate the

valves.

− Head units must not be removed once installed.

− Do not cover or remove body marking.

Important. The maximum working temperature of the whole assembly

(manifold and instrument) corresponds to the temperature limit of the

pressure transmitter.

Important. When the manifold is assembled to a 2600T pressure

transmitter with NACE compliance A4-50 Stainless Steel bolts (available

on request), please note that the maximum working pressure is limited to

210 bar (3045 psi).

14 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

5 Applications

5.3 Liquid level measurements on closed tanks and

non condensable fluids (dry leg)

− Mount the transmitter at the same height or below the lowest

level to be measured.

− Connect the + (H) side of the transmitter to the bottom of the

tank.

− Connect the - (L) side of the transmitter to the upper part of the

tank, above the maximum level of the tank.

Figure 10: Level measurement on closed tank with dry leg

5.4 Liquid level measurement with open tanks

− Mount the transmitter at the same height or below the lowest

level to be measured.

− Connect the + (H) side of the transmitter to the bottom of the

tank.

− Vent the “–” (L) side of the transmitter to the atmosphere (in this

case a gauge pressure is shown; the (L) side is already vented to

the atmosphere).

Figure 11: Level measurement on open tank with P style transmitter

5.5 Pressure or absolute pressure measurement of a

condensable vapor in a pipe

− Place the tap at the side of the line.

− Mount the transmitter below the tap.

− Connect the + (H) side of the transmitter to the pipe.

− Fill the vertical section of the connecting line to the tap with a

compatible liquid through the dedicated ﬁlling tee.

Figure 12: Pressure measurement with DP and P style transmitters

2600T Series Pressure transmitters | SOI/266-XC Rev. I 15

6 Diaphragm seals

6.1 Seals handling

− Diaphragm seals equipped transmitters require a particular

attention during handling and installation to avoid damaging the

device.

− For capillary equipped transmitters (gauge or differential) avoid

lifting the device by gripping the capillary.

− Avoid excessively bending the capillary, the maximum bending

radius is12,5 cm (5 inches).

− The diaphragm surface is delicate and could be damaged.

Therefore, leave the diapgragm protection covers in place until the

ﬁnal installation and when the ptotection has been removed, avoid

placing the seal with the diaphragm in contact with a hard surface.

6.2 Seals installation

Before proceeding with the installation be sure that the diaphragm

seal MWP (Maximum Working Pressure limit) is in compliance with the

mating process connection.

The diaphragm seal MWP is written on the transmitter main nameplate

(MWP for differential pressure transmitters, OVP for gauge and

absolute pressure transmitters). Check that the ﬁll ﬂuid type and

temperature limit is in compliance with your environmental/process

conditions. The transmiiter has been delivered with wetted materials

according to the model numer speciﬁed on the nameplate. Before

proceeding with the installation consider wetted material process

compatibility.

If you are installing a diaphragm seal which requires a gasket (S26CN,

S26F, S26J, S26M, S26P, S26R, S26S, S26U, S26V, S26W ) be sure

to use a suitable gasket for your processﬂuid, check that the

temperature and pressure limit are compatible with your application.

Properly position the gasket so that it does not tpress down the

diaphragm. A gasket not properly installed may affect the transmitter

measurement. When installing ﬂushing rings make sure that the gasket

is properly aligned on the gasket sealing surface.

6.3 Bolt torquing

During the installation of ﬂanged or wafer type seals the bolts have to

be torqued to the speciﬁc ﬂange and gasket requirements. The torque

requirement is a function of the gasket and bolts material.

6.4 Vacuum application consideration

When installing remote diaphragm seals in application working below

the atmospheric pressure, check that the ﬁll ﬂuid curves are in

compliance with your application. The transmitter must be located

below or at the bottom process tap. In case of doubts please refer to

the integral instruction manual that can be downloaded at www.abb.

com/pressure or refer to your ABB Instrumentation dealer.

6.5 Wafer (pancake) seals (model S26W)

Wafer seals installation requires the user to apply a blind ﬂange to

connect the seal to the process, the type, size and material of the

blind ﬂange must be in compliance with the mating process

connection counterﬂange.

6.6 Off-line threaded and flanged seals

(models S26T and S26M)

The upper and lower housing is preassembled at the factory. When

connecting the S26T off-line threaded seal to the process pipe, do not

overtighten the seal. Torque value should be in compliance with ANSI

B1.20.1 or applicable torque requirements for pipe connections.

In case the lower housing needs to be disassembled from the upper

housing, when riassembling be sure to replace the gasket with a new

gasket of the same tipe (see spare part list for part number).

The bolts should be thighten to 25 Nm.

6.7 Saddle and Socket seals (model S26V)

Saddle and Socket seals are delivered with all the parts necessary to

perform a correct installation.

The lower housing has to be welded to the process pipe.

When welding the lower housing to the process pipe, the upper

housing has to be removed.

The upper housing can be installed on the lower housing whe it has

cooled down.

Before positioning the upper housing be sure that the gasket has

been properly placed in its seat.

Bolts torque value for socket and saddle seal is 20 Nm.

6.8 Sanitary seals (model S26S)

ABB sanitary seals may be supplied with a 3A symbol which is printed

on the seal body. To properly install 3A approved seals please refer to

the integral version of the instruction manual that can be downloaded

from www.abb.com/pressure.

6.9 Threaded seals for Pulp&Paper (model S26K)

Threaded seals for Pulp&Paper should be installed considering the

proper torquing value which is a function of the thread type

16 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

7 Hazardous area considerations

7 Hazardous Area considerations

7.1 Ex Safety aspects and IP Protection (Europe)

According to ATEX Directive (European Directive 94/9/EC of 23 March

1994) and relative European Standards which can assure compliance

with Essential Safety Requirements, i.e., EN 60079-0 (General

requirements) EN 60079-1 (Flameproof enclosures “d”) EN 60079-11

(Equipment protection by intrinsic safety “i”) EN 60079-26 (Equipment

with equipment protection level -EPL- Ga) EN 61241-0 (General

requirements) EN 61241-1 (Protection by enclosures “tD”) EN 61241-

11 (Protection by intrinsic safety”iD”) the pressure transmitters of the

2600T SERIES have been certiﬁed for the following group, categories,

media of dangerous atmosphere, temperature classes, types of

protection. Examples of application are also shown below by simple

sketches.

a) Certiﬁcate ATEX II 1 G Ex ia IIC T4/T5/T6 and II 1 D Ex iaD 20

T85°C

FM Approvals certiﬁcate number

FM09ATEX0024X (Lenno products)

FM09ATEX0069X (Minden products)

FM11ATEX0035X (Faridabad products)

FM11ATEX0046X (Shanghai products)

The meaning of ATEX code is as follows:

− II : Group for surface areas (not mines)

− 1 : Category

− G : Gas (dangerous media)

− D: Dust (dangerous media)

− T85°C: Maximum surface temperature of the transmitter

enclosure with a Ta (ambient temperature) +40°C for Dust (not

Gas) with a dust layer up to 50 mm depth.

Application with Gas

Application with Dust

Note: the transmitter must be

connected to a supply

(associated apparatus) certiﬁed

[Ex ia]

Note: the protection is mainly

assured by the “IP” degree

associated to the low power from

supply. This can either be [ia] or

[ib] certiﬁed [Ex ia]

Zone 0

266 Tx Category 1G Ex ia

Zone 20

266 Tx Category 1D IP6x (Ex ia)

Certiﬁcate IECEx Ex ia IIC T4/T5/T6 and Ex iaD 20 T85°C FISCO,

IP67

IECEx certiﬁcate number

IECEx FME 09.0003X (Lenno and Minden products)

IECEx FMG 11.0019X (Shanghai products)

Important. The number close to the CE marking of the transmitter safety

label identiﬁes the Notiﬁed Body which has responsibility for the

surveillance of the production.

The other marking refers to the protection type used according to

relevant EN standards:

− Ex ia: Intrinsic safety, protection level “a”

− IIC: Gas group

− T4: Temperature class of the transmitter

(corresponding to 135°C max) with a Ta from -50°C to +85°C

− T5: Temperature class of the transmitter

(corresponding to 100°C max) with a Ta from -50°C to +40°C

− T6: Temperature class of the transmitter

(corresponding to 85°C max) with a Ta from -50°C to +40°C

About the applications, this transmitter can be used in “Zone 0”

(Gas) and “Zone 20” (Dust) classiﬁed areas (continuous hazard)

as it is shown on the following sketches.

Application for pressure transmitter Ex ia categories 1G and 1D

2600T Series Pressure transmitters | SOI/266-XC Rev. I 17

7 Hazardous area considerations

b) Certiﬁcate ATEX II 1/2 G Ex ia IIC T4/T5/T6 and

II 1/2 D Ex iaD 21 T85°C

FM Approvals certiﬁcate number

FM09ATEX0024X (Lenno products)

FM09ATEX0069X (Minden products)

FM11ATEX0035X (Faridabad products)

FM11ATEX0046X (Shanghai products)

Important. This ATEX Category depends on the application (see

below) and also on the intrinsic safety level of the transmitter supply

(associated apparatus) which can sometimes suitably be [ib] instead

of [ia]. As it is well known, the level of an intrinsic safety system is

determined by the lowest level of the various apparatus used, i.e., in

the case of [ib] supply, the system takes over this level of protection.

The meaning of ATEX code is as follows:

− II: Group for surface areas (not mines)

− 1/2: Category - It means that only a part of the transmitter

complies with category 1 and a second part complies with

category 2 (see next application sketch).

− G: Gas (dangerous media)

− D: Dust (dangerous media)

− T85°C: Maximum surface temperature of the transmitter

enclosure with a Ta from -50°C to +40°C for Dust (not Gas) with

a dust layer up to 50 mm depth. T85°C: as before for Dust for a

Ta +85°C.

Note: the transmitter can be connected to either [ib] or [ia] supply

(associated apparatus)certiﬁed [Ex ia]

Note for “Primary transducer”: see the certiﬁcation for exceptions

Application with Gas Application with Dust

Note: the protection is mainly assured by the “IP” degree

associated to the low power from supply. This can either be [ia]

or [ib]

Zone “0”

Zone “1”

Dangerous

medium

(process)

Tank

Zone “0” / Zone “1”

separation element

Primary transducer

266 Tx

Category

1/2 G Ex ia

Zone “20”

Zone “21”

Dangerous

medium

(process)

Silo

266 Tx

Category

1/2 D Ex ia

Certiﬁcate IECEx Ex ia IIC T4/T5/T6 and Ex iaD 21 T85°C, FISCO,

IP67

IECEx certiﬁcate number

IECEx FME 09.0003X (Lenno and Minden products)

IECEx FMG 11.0019X (Shanghai products)

The other marking refers to the protection type used according to

relevant EN standards:

− Ex ia: Intrinsic safety, protection level “a”

− IIC: Gas group

− T4: Temperature class of the transmitter

(corresponding to 135°C max) with a Ta from -50°C to +85°C

− T5: Temperature class of the transmitter

(corresponding to 100°C max) with a Ta from -50°C to +40°C

− T6: Temperature class of the transmitter

(corresponding to 85°C max) with a Ta from -50°C to +40°C

About the applications, this transmitter can be used in Zone “0” (Gas)

classiﬁed areas (continuous hazard) with its “process part” only,

whereas the remaining part of the transmitter, i.e. its enclosure, can be

used in Zone 1 (Gas), only (see sketch below). Reason of this is the

process part of the transmitter (normally called primary transducer)

that provides inside separation elements to seal off the electrical

sensor from the continuously hazardous process, according to the

EN 60079-26 and EN 60079-1. About Dust application, the

transmitter is suitable for “Zone 21” according to the EN 61241-0 and

EN 61241-11 as it is shown on the relevant part of the sketches.

Application for pressure transmitter Ex ia categories 1/2G and 1/2D

18 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

7 Hazardous area considerations

c) Certiﬁcate ATEX II 1/2 G Ex d IIC T6

ATEX II 1/2 D Ex tD A21 IP67 T85°C (-50°C ≤ Ta ≤+75°C)

FM Approvals Certiﬁcate number

FM09ATEX0023X (Lenno products)

FM09ATEX0068X (Minden products)

FM11ATEX0036X (Faridabad products)

FM11ATEX0047X (Shanghai products)

The meaning of ATEX code is as follows:

− II: Group for surface areas (not mines)

− 1/2: Category - It means that only a part of the transmitter

complies with category 1 and a second part complies with

category 2 (see next application sketch).

− G: Gas (dangerous media)

− D: Dust (dangerous media)

− T85°C: Maximum surface temperature of the transmitter

enclosure with a Ta (ambient temperature) +75°C for Dust (not

Gas) with a dust layer up to 50 mm depth.

Important. The number close to the CE marking of the transmitter safety

label identiﬁes the Notiﬁed Body which has responsibility for the

surveillance of the production.

Application with Gas

IP code

About the degree of protection provided by the enclosure of the pressure transmitter, the 2600T SERIES has been certiﬁed IP67 according to

EN 60529 standard. The ﬁrst characteristic numeral indicates the protection of the inside electronics against ingress of solid foreign objects

including dusts.

The assigned “6” means an enclosure dust-tight (no ingress of dust).

The second characteristic numeral indicates the protection of the inside electronics against ingress of water.

The assigned “7”means an enclosure water-protected against a temporary immersion in water under standardized conditions of pressure and

time.

Application with Dust

Zone “0”

Zone “1”

Dangerous

medium

(process)

Tank

Zone “0” / Zone “1”

separation element

Primary transducer

266 Tx

Category

1/2 G Ex d

Zone “20”

Dangerous

medium

(process)

Silo

Certiﬁcate IECEx Ex d IIC T6, Ex tD A21 T85°C, Ta= -50°C to +75°C

IECEx certiﬁcate number

IECEx FME 09.0002X (Lenno and Minden products)

IECEx FMG 11.0018X (Shanghai products)

The other marking refers to the protection type used according to

relevant EN Standards:

− Ex d: Explosion proof

− IIC: Gas group

− T6: Temperature class of the transmitter (corresponding to 85°C

max) with a Ta from -50°C to +75°C.

About the applications, this transmitter can be used in Zone “0” (Gas)

classiﬁed areas (continuous hazard) with its “process part” only,

whereas the remaining part of the transmitter, i.e. its enclosure, can be

used in Zone 1 (Gas), only (see sketch below). Reason of this is the

process part of the transmitter (normally called primary transducer)

that provides inside separation elements to seal off the electrical

sensor from the continuously hazardous process, according to the

EN 60079-26 and EN 60079-1.

About Dust application, the transmitter is suitable for “Zone 21”

according to the EN 61241-1 as it is shown on the relevant part of the

sketches.

Application for pressure transmitter Ex d categories 1/2G and 1/2D

Zone “21”

266 Tx

Category

1/2 D Ex d

2600T Series Pressure transmitters | SOI/266-XC Rev. I 19

7 Hazardous area considerations

According to ATEX Directive (European Directive 94/9/EC of 23 March

1994) and relative Standards which can assure compliance with

Essential Safety Requirements, i.e., EN 60079-0 (General

requirements) EN 60079-15 (Speciﬁcation for electrical apparatus with

type of protection “n”) EN 61241-0 (General requirements), the

pressure transmitters of the 2600T SERIES have been certiﬁed for the

following group, categories, media of dangerous atmosphere,

temperature classes, types of protection. Examples of application are

also shown below by simple sketches.

d) Certiﬁcate ATEX II 3 G Ex nL IIC T4/T5/T6

(for T4 = -50°C ≤ Ta ≤+85°C),

(for T5 and T6 = -50°C ≤ Ta ≤+40°C) and II 3D Ex tD A22 IP67 T85°C.

FM Approvals Certiﬁcate number

FM09ATEX0025X (Lenno products)

FM09ATEX0070X (Minden products)

FM11ATEX0037X (Faridabad products)

FM11ATEX0048X (Shanghai products)

The meaning of Atex code is as follows :

− II 3G Ex nL IIC T4/T5/T6 (for T4 = -50°C < Ta < +85°C) (for T5

and T6 = -50°C < Ta < +40°C)

− II: Group for surface areas (not mines)

− 3: Category of equipment

− G: Gas (Dangerous media)

− Ex nL: type of protection “n” with “energy limitation” technique

− IIC: gas group

− T4: Temperature class of the transmitter (which corresponds to

135°C max) with a Ta from -50°C to +85°C

− T5: Temperature class of the transmitter (which corresponds to

100°C max) with a Ta from -50°C to +40°C

− T6: Temperature class of the transmitter (which corresponds to

85°C max) with a Ta from -50°C to +40°C

Application with Gas

Application with Dust

Note: the transmitter must be

connected to a supply with 42V

d.c. max output voltage as

above indicated. The Ii of the

transmitter is less than 25 mA.

Zone 2

266 Tx Category 3G Ex nL

Note: the protection is mainly

assured by the “IP” degree

associated to the low power

from supply.

Important - Note for pressure transmitter with combined approval.

Before installation of the Transmitter, the customer should permanent mark his

chosen Protection Concept on the safety label. The transmitter can only be used with according to this Protection Concept for the whole life. If two

or more types of protection box (on safety label) are permanent marked, the pressure transmitter must be removed from hazardous classiﬁed

locations. The selected Type of Protection is allowed to be changed only by manufacturer after a new satisfactory assessment.

Important. It is the technical support for the ABB Declaration of

Conformity

Important. When installed this transmitter must be supplied by a voltage

limiting device which will prevent the rated voltage of 42 V d.c. being

exceeded.

About the applications, this transmitter can be used in Zone 2 (Gas)

(unlikely/infrequent hazard) as it shown on the following skecth (left

side)

− II 3D Ex tD A22 IP67 T85°C

− II: Group for surface areas (not mines)

− 3: Category of equipment

− D: Gas (Dangerous media)

− Ex tD: type of protection “tD” means protection by enclosure

technique

− A22: for zone 22 (tested acc. to method A of EN61241-0)

− IP67: degree of protection of the transmitter acc. EN60529

− T85°C: Maximum surface temperature of the transmitter

enclosure with a Ta from -50°C to +40°C for Dust (not Gas).

About the applications, this transmitter can be used in Zone 22 (Dust)

(unlikely/infrequent hazard) as it shown on the following skecth (right

side)

Application for pressure transmitter Ex nL categories 3G and 3D

Zone 22

266 Tx Category 3D IP6x

(Ex nL)

20 SOI/266-XC Rev. I | 2600T Series Pressure transmitters

7 Hazardous area considerations

7.1.1 Entities for “L5” option (display with TTG

technology)

HART Version with “L5” option (display TTG)

Ui= 30Vdc Ci= 5nF Li= uH

Temperature

Class - Gas

Temperature

Class - Dust

Minimum

amb. °C

Maximum

amb. °C

Imax

mA

Power

W

T4 T135°C -50°C +60°C 100 0,75

T4 T135°C -50°C +60°C 160 1

T5 T100°C -50°C +56°C 100 1,75

T6 T85°C -50°C +44°C 50 0,4

PROFIBUS Version with “L5” option (display TTG)

Ui= 17,5 Vdc Ii= 360 mA Pi= 2,52 W Ci= 5nF Li= 10 uH

Temperature

Class - Gas

Temperature

Class - Dust

Minimum

amb. °C

Maximum

amb. °C

T4 T135°C -50°C +60°C

T5 T100°C -50°C +56°C

T6 T85°C -50°C +44°C

FF / FISCO Version with “L5” option (display TTG)

Ui= 17,5 Vdc Ii= 380 mA Pi= 5,32 W Ci= 5nF Li= 10 uH

Temperature

Class - Gas

Temperature

Class - Dust

Minimum

amb. °C

Maximum

amb. °C

T4 T135°C -50°C +60°C

T5 T100°C -50°C +56°C

T6 T85°C -50°C +44°C

7.2 Ex Safety aspects and IP Protection (North

America)

7.2.1 Applicable standards

According to FM Approvals Standards which can assure compliance

with Essential Safety Requirements

FM 3600: Electrical Equipment for use in Hazardous

(Classiﬁed) Locations, General Requirements.

FM 3610: Intrinsically Safe Apparatus and Associated

Apparatus for Use in Class I, II, III, Division 1, and

Class I, Zone 0 & 1 Hazardous (Classiﬁed)

Locations.

FM 3611: Nonincendive Electrical Equipment for Use in Class I

and II, Division 2 and Class III Division 1 and 2

Hazardous (Classiﬁed) Locations.

FM 3615: Explosionproof Electrical Equipment.

FM 3810: Electrical and Electronic Test, Measuring and

Process Control Equipment.

NEMA 250: Enclosure for Electrical Equipment (1000 Volts

Maximum)

7.2.2 Classifications

The 2600T Series pressure transmitters have been certiﬁed by FM

Approvals for the following Class, Divisions and Gas groups,

hazardous classiﬁed locations, temperature class and types of

protection.

− Explosionproof (US) for Class I, Division 1, Groups A, B, C and D,

hazardous (classiﬁed) locations.

− Explosionproof (Canada) for Class I, Division 1, Groups B, C and

D, hazardous (classiﬁed) locations.

− Dust Ignition proof for Class II, III Division 1, Groups E, F and G,

hazardous (classiﬁed) locations.

− Suitable for Class II, III, Division 2, Groups F and G, hazardous

(classiﬁed) locations.

− NonIncendive for Class I, Division 2, Groups A, B, C and D, in

accordance with Nonincendive ﬁeld wiring requirements for

hazardous (classiﬁed) locations.

− Intrinsically Safe for use in Class I, II and III, Division 1, Groups A,

B, C, D, E, F, and G in accordance with Entity requirements for

hazardous (classiﬁed) locations.

− Temperature class T4 to T6 (dependent on the maximum input

current and the maximum ambient temperature).

− Ambient Temperature range -40°C to +85°C (dependent on the

maximum input current and the maximum temperature class).

− Electrical Supply range Minimum 10.5 Volts, Maximum 42 Volts

(dependent on the type of protection, maximum ambient

temperature, maximum temperature class and communication

protocol).

− Type 4X applications Indoors/Outdoors.

For a correct installation in ﬁeld of 2600T Series pressure transmitters

please see the related control drawing.

Note that the associated apparatus must be FM approved.

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