Magnetrol Kotron 805 Istruzioni per l'uso

Marca: Magnetrol

Modello: Kotron 805

Categoria: Misurazione, test

Tipo: Istruzioni per l'uso

Capacitance

Level

Measurement

7xxx

6xxx

5xxx

4xxx

3xxx

2xxx

1xxx

Installation and Operating Manual

Kotron

Model 805 Smart RF

Level Transmitter

Read this Manual Before Installing

This manual provides information on the Kotron

Model

805 Smart RF Transmitter. It is important that all

instructions are read carefully and followed in sequence.

The QuickStart Installation instructions are a brief guide

to the sequence of steps for experienced technicians to

follow when installing the equipment. Detailed instruc-

tions are included in the Complete Installation section of

this manual.

Conventions Used in this Manual

Certain conventions are used in this manual to convey

specific types of information. General technical material,

support data, and safety information are presented in

narrative form. The following styles are used for notes,

cautions, and warnings.

Notes

Notes contain information that augments or clarifies

an operating step. Notes do not normally contain

actions. They follow the procedural steps to which

they refer.

Cautions

Cautions alert the technician to special conditions that

could injure personnel, damage equipment, or reduce

a component’s mechanical integrity. Cautions are also

used to alert the technician to unsafe practices or the

need for special protective equipment or specific mate-

rials. In this manual, a caution box indicates a poten-

tially hazardous situation which, if not avoided, may

result in minor or moderate injury.

Warnings

Warnings identify potentially dangerous situations or

serious hazards. In this manual, a warning indicates an

imminently hazardous situation which, if not avoided,

could result in serious injury or death.

Safety Messages

The KOTRON Model 805 system may be properly

installed in Category II, Pollution Degree 2 installations.

Follow all standard industry procedures for servicing elec-

trical and computer equipment when working with or

around high voltage. Always shut off the power supply

before touching any components. Although high voltage is

not present in this system, it may be present in other sys-

tems.

Electrical components are sensitive to electrostatic dis-

charge. To prevent equipment damage, observe safety

procedures when working with electrostatic sensitive

components.

Low Voltage Directive

For use in Category II installations. If equipment is used

in a manner not specified by manufacturer, protection

provided by equipment may be impaired.

WARNING! Explosion hazard. Do not connect or dis-

connect equipment unless power has been switched off or

the area is known to be non-hazardous.

Notice of Trademark, Copyright, and Limitations

KOTRON is a registered trademark of Magnetrol

International, Incorporated. KOTRON Model 805 Smart

RF Transmitter is a tradename of Magnetrol International,

Incorporated.

Magnetrol

reserves the right to make changes to the

product described in this manual at any time without

notice. MAGNETROL makes no warranty with respect

to the accuracy of the information in this manual.

Warranty

All MAGNETROL electronic level and flow controls

are warranted free of defects in materials or workmanship

for eighteen months from the date of original factory

shipment.

If returned within the warranty period; and, upon factory

inspection of the control, the cause of the claim is deter-

mined to be covered under the warranty; then,

MAGNETROL will repair or replace the control at no cost

to the purchaser (or owner) other than transportation.

MAGNETROL shall not be liable for misapplication,

labor claims, direct or consequential damage or expense

arising from the installation or use of equipment.

There are no other warranties expressed or implied,

except special written warranties covering some

MAGNETROL products.

Quality Assurance

The quality assurance system in place at MAGNETROL

guarantees the highest level of quality throughout the

company. MAGNETROL is committed to providing

full customer satisfaction both in quality products and

quality service.

The MAGNETROL quality assurance system is

registered to ISO 9001 affirming its commitment to

known international quality standards providing the

strongest assurance of product/service quality available.

Table of Contents

1.0 QuickStart Installation

1.1 Getting Started .......................................................4

1.1.1 Equipment and Tools...................................4

1.1.2 Configuration Information ..........................4

1.2 QuickStart Mounting .............................................5

1.2.1 Probe ...........................................................5

1.2.2 Transmitter ..................................................5

1.3 QuickStart Wiring..................................................6

1.4 QuickStart Configuration and Calibration

(LCD version) ........................................................6

2.0 Complete Installation

2.1 Unpacking ..............................................................8

2.2 Electrostatic Discharge (ESD)Handling Procedure...8

2.3 Before You Begin ....................................................9

2.3.1 Site Preparation............................................9

2.3.2 Equipment and Tools...................................9

2.3.3 Operational Considerations .........................9

2.4 Mounting .............................................................10

2.4.1 Installing a Rigid Probe..............................11

2.4.2 Installing the Transmitter ...........................11

2.5 Wiring ..................................................................12

2.5.1 General Purpose or Non-incendive

(CI I, Div 2) ..............................................12

2.5.2 Intrinsically Safe .........................................12

2.6 Configuring & Calibrating the Transmitter

(LCD Version)......................................................13

2.6.1 Operating Parameters .................................13

2.6.2 LCD Transmitter Display and Keypad .......13

2.6.3 Password Protection (Default = 0) .............14

2.6.4 LCD Menu: Step-By-Step Procedure .........14

2.7 Configuration Using HART

...............................16

2.7.1 Connections...............................................16

2.7.2 HART Display Menu ................................16

2.7.3 HART Device Description (DD)...............16

2.7.4 HART Menu .............................................17

3.0 Reference Information

3.1 Description...........................................................18

3.2 Theory of Operation ............................................18

3.3 Troubleshooting....................................................19

3.3.1 Troubleshooting System Problems (LCD)..20

3.3.2 Error Messages (LCD) ...............................20

3.3.3 Troubleshooting Flowchart (LCD).............21

3.4 Agency Approvals .................................................24

3.4.1 Agency Specifications – Intrinsically

Safe Installation .........................................25

3.5 Parts......................................................................26

3.5.1 Replacement Parts......................................26

3.6 Specifications ........................................................27

3.6.1 Functional..................................................28

3.6.2 Performance...............................................28

3.6.3 Physical......................................................29

3.7 Model Number.....................................................29

Configuration and Calibration Data Sheet........................30

KOTRON

Model 805 Smart RF

Level Transmitter

50-660 Kotron

Model 805 Smart RF Level Transmitter

1.0 QuickStart Installation

The QuickStart Installation procedures provide the key

steps for mounting, wiring, and configuring the

KOTRON Model 805 Level Transmitter. These proce-

dures are intended for experienced installers of electronic

level measurement instruments. See Complete Installation,

Section 2.0, for detailed installation instructions.

1.1 Getting Started

Before beginning the QuickStart Installation procedures,

have the correct equipment, tools, and information

available.

1.1.1 Equipment and Tools

•1

⁄8" open-end wrench or adjustable wrench to fit the probe

process connection size and type.

•1

⁄4" open-end wrench or adjustable wrench to fit adaptor

on transmitter housing.

• Flat-blade screwdriver

• Digital multimeter or digital volt/ammeter

• 24 VDC power supply, 23 mA

1.1.2 Configuration Information

Some key information is needed to configure the Model

805 transmitter. Complete the following operating

parameters table before beginning configuration.

Display Question Answer

Units What units of measurement will be

used? (inches or centimeters) _____________

Set What is the 0% reference point for the

4.0 mA 4.0 mA value? _____________

Set What is the 100% reference point for

20.0 mA the 20.0 mA value? _____________

50-660 Kotron

Model 805 Smart RF Level Transmitter

1.2 QuickStart Mounting

NOTE: Confirm the configuration style and process connection size

and type of the KOTRON Model 805 transmitter. Ensure it

atches the requirements of the installation before continuing

with the QuickStart installation.

① Confirm the model and serial numbers.

1.2.1 Probe

② Carefully place the probe into the vessel. Align the probe

process connection with the threaded or flanged mounting

on the vessel.

③ Tighten the probe using the flats of the probe process con-

nection or flange bolts.

1.2.2 Transmitter

④ Loosen screw on top of the probe and attach white wire to

probe, making sure that spade lug is at a 90° upward

angle. Tighten probe screw securely. (See figure below)

⑤ Place the transmitter on the probe.

⑥ Tighten the connection by using the flats on the adaptor.

①

⑤

⑥

②

③

④

①

90° Bend

50-660 Kotron

Model 805 Smart RF Level Transmitter

1.3 QuickStart Wiring

WARNING! Explosion hazard. Do not connect or disconnect equip-

ment unless power has been switched off or the area is

nown to be safe.

NOTE: Make sure the electrical wiring to the KOTRON Model 805

transmitter is complete and in compliance with all regulations

and codes.

1. Remove the cover of the wiring compartment of the

transmitter.

2. Attach a conduit fitting and mount the conduit plug in

the spare opening. Pull the power supply wire (twisted,

shielded pair of at least 22 AWG) through the conduit

fitting.

3. Connect shield to an earth ground at power supply and

leave floating at the transmitter.

4. Connect an earth ground to the nearest green ground

screw. (Not shown in illustration.)

5. Connect the positive supply wire to the (+) terminal and

the negative supply wire to the (-) terminal.

6. Replace the cover and tighten.

1.4 QuickStart Configuration and Calibration

(LCD version)

NOTE: The KOTRON Model 805 transmitter is equipped with a 2-line

by 8-character LCD.

1. Power-up the transmitter.

The display changes every 5 seconds to show one of the

three measured values: Level, %Output, and Loop current.

2. Remove the cover of the electronic compartment.

3. Use the Up ( ) or Down ( ) Arrow keys to move from

one step of the configuration program to the next step.

4. Press the Enter Arrow ( ) key. The last character in the

first line of the display changes to an exclamation point (!).

For example:

5. Use the Up ( ) or Down ( ) keys to increase or decrease

the value in the display or to scroll through the choices.

ed (+)

Black (-)

(+)

(

Units!

xxx

➪

50-660 Kotron

Model 805 Smart RF Level Transmitter

①

②

③

④

⑤

Units

Set 4mA

xxx.x

Set 20mA

xxx.x

Scroll down to the Units display. Press the Enter

Arrow ( ) key. Select the Units of measurement

for the level readout (cm or inches). Press the

Enter Arrow ( ) key.

Scroll down to the Lo Cal display. Press the Enter

Arrow ( ) key. Enter the current level (in or cm) of

media on the probe by using the Up and Down

Arrow ( ) keys. Holding either key down causes

the values to change first by 1s and then by 10s.

Single depression of either key causes the values to

change by 0.1s. Once the desired value is displayed,

press the Enter Arrow ( ) key.

Move the media in the tank to a higher level. The

greater the amount of level change, the more accu-

rate the level measurement. Scroll down to the Hi Cal

display. Press the Enter Arrow ( ) key. Enter the

new current media level in the same manner as

above. Press the Enter Arrow ( ) key.

NOTE: If calibrating the 805 for interface measurement,

enter the level of the interface rather than the

upper level.

Scroll down to the Set 4 mA display. Press the

Enter Arrow ( ) key. Enter the minimum level

value for the desired 4 mA point. Press the

Enter Arrow ( ) key.

Scroll down to the Set 20 mA display. Press the

Enter Arrow ( ) key. Enter the maximum level

value for the desired 20 mA point. Press the

Enter Arrow ( ) key.

Hi Cal

20mA Level

(100%-point)

4mA Level

(0%-point)

In or Cm

Lo Cal

6. Press the Enter Arrow ( ) key to accept a value and

move to the next step of the configuration program.

7. The default password is 0. (No password is required.)

Lo Cal

xxx.x lu

Hi Cal

xxx.x lu

➪

The transmitter is now calibrated for this probe in this

medium in this tank (or vessel) and it provides a 4–20 mA

output over the desired range. Damping factor and Fault

output will automatically default to factory set values of

1 second and 22 mA. Changing these values and those for

other parameters are covered in detail in the next section,

Complete Installation.

➪

The following parameter entries are the minimum

required for initial setup and calibration. The default

password is 0.

50-660 Kotron

Model 805 Smart RF Level Transmitter

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foil. Do not place boards on foam packing materials.

•

Use a grounding wrist strap when installing and removing

circuit boards. A grounded workstation is recommended.

•

Handle circuit boards only by the edges. Do not touch

components or connector pins.

•

Make sure that all electrical connections are completely

made and none are partial or floating. Ground all

equipment to a good, earth ground.

50-660 Kotron

Model 805 Smart RF Level Transmitter

2.3 Before You Begin

2.3.1 Site Preparation

Each KOTRON Model 805 transmitter is built to match

the specific physical specifications of the required installa-

tion. Make sure the probe connection is correct for the

threaded or flanged mounting on the vessel or tank where

the transmitter will be placed. See Mounting, Section 2.4.

Make sure that the wiring between the power supply and

Model 805 transmitter is complete and correct for the type

of installation. See Specifications, Section 3.6.

When installing the Model 805 transmitter in a general

purpose or hazardous area, all local, state, and federal

regulations and guidelines must be observed. See Wiring,

Section 2.5.

2.3.2 Equipment and Tools

No special equipment or tools are required to install

the Model 805 transmitter. The following items are

recommended:

•1

⁄8" Open-end wrench or adjustable wrench to fit the

probe process connection size and type

• Flat-blade screwdriver

• Digital multimeter or digital volt/ammeter

• 24 VDC power supply, 23 mA

2.3.3 Operational Considerations

The Model 805 transmitter should be located for easy

access for service, configuration, and monitoring. There

should be sufficient headroom to allow the probe to be

inserted into the tank. Special precautions should be made

to prevent exposure to corrosive atmosphere, excessive

vibration, shock, or physical damage.

The transmitter electronics should not be exposed to

ambient temperatures above +175 °F (+80 °C) or below

-40 °F (-40 °C). The proper operating temperature range

for the display is -10 to +160 °F (-20 to +70 °C).

The temperature limits for the probe depend on the

style and part number of the specific probe used.

See Brochure 50-125, KOTRON

RF Sensing Probes.

50-660 Kotron

Model 805 Smart RF Level Transmitter

2.4 Mounting

The Model 805 transmitter can be mounted to a tank

using a variety of process connections. Generally, either a

threaded or flanged connection is used. For information

about the sizes and types of connections available, see

Brochure 50-125, KOTRON

RF Sensing Probes.

Make sure all mounting connections are properly in place

on the tank before installing the probe. Make sure the

KOTRON probe is correct for the intended installation.

It is common practice to use the metal tank wall as the ref-

erence electrode. In such cases, it is required that the probe

housing makes a good electrical connection to the tank

wall. If there is any doubt about this connection or to the

use of PTFE thread tape gaskets, paint, rust, or any other

reason, a separate strap should be installed between the

probe housing and the tank.

Caution: This unit contains CMOS electronics which may be dam-

aged by static electricity. Do not touch any semi-conduc-

tor devices unless you are properly grounded.

Metal Walled Tanks

On water-based liquids, there should be no problem with

sensitivity or linearity. With non-conductive, low dielectric

media, sensitivity can be enhanced by locating the probe

close to and parallel with the tank wall. If this is not prac-

tical, a concentric ground tube surrounding the probe

(sometimes called a stilling well), may be the solution.

NOTE: These comments are also true for glass-lined metal

walled tanks.

Tanks/Silos with Non-Conductive Materials of

Construction

With plastic, concrete, wood, or any other non-conductive

walled vessels, the reference electrode mentioned above

needs clarification. Most commonly, this electrode will be

in the form of a concentric ground tube (i.e. stilling well).

In questionable circumstances, consult the factory. In all

cases, a good electrical connection must be made between

the ground surface and the probe housing.

50-660 Kotron

Model 805 Smart RF Level Transmitter

Transmitter/Probe Assembly

Transmitters with probes up to and including 12 inches

(305 mm) in length are shipped pre-assembled. All other

transmitters are shipped unassembled to avoid damage

during transit. These transmitters must be assembled prior

to mounting. Choose your particular configuration from

the following sections and follow the instructions carefully.

2.4.1 Installing a Rigid Probe

Before installing, ensure the:

• Probe has adequate headroom for installation and has

unobstructed entry to the bottom of the vessel.

• Process temperature, pressure, dielectric, and viscosity are

within the probe specifications for the installation. See

Specifications, Section 3.6.

To install a probe:

① Make sure the process connection is at least

⁄4" NPT or a

flanged mounting.

② Carefully place the probe into the vessel. Align the gasket

on flanged installations.

③ Align the probe process connection with the threaded or

flanged mounting on the vessel.

④ Tighten the threaded probe process connection using

only the flats on the probe.

Caution: Packing glands used on all MAGNETROL rigid probe

assemblies have been sealed at the factory under con-

trolled conditions. Care must be exercised when installing

probe assemblies to avoid breaking the pressure tight

gland seal, which destroys the seal.

2.4.2 Installing the Transmitter

⑤ Loosen screw on top of the probe and attach white wire to

probe, making sure that spade lug is at a 90° upward

angle. Tighten probe screw securely.

⑥ Slide white wire through the adaptor while placing the

transmitter on the probe. Tighten the connection by using

the flats on the adaptor.

②

①

④

③

⑤

⑥

90° Bend

50-660 Kotron

Model 805 Smart RF Level Transmitter

2.5 Wiring

aution: The KOTRON Model 805 transmitter operates at voltages

of 11–36 VDC (GP) and 11–28.6 VDC (IS). Higher voltages

will damage the transmitter.

All wiring between the power supply and the Model 805

transmitter should be made using 18–22 AWG shielded

twisted pair instrument cable. Within the transmitter

enclosure, connections are made to the terminal strip and

the ground connections. The directions for wiring the

Model 805 transmitter depend on the application:

• General Purpose or Non-incendive (Cl I, Div. 2)

• Intrinsically Safe

WARNING! Explosion hazard. Do not disconnect equipment

unless power has been switched off or the area is

known to be safe.

2.5.1 General Purpose or Non-incendive (Cl I, Div. 2)

A general purpose installation does not have flammable

media present. Areas rated non-incendive (Cl I, Div. 2)

have flammable media present only under abnormal

conditions. No special electrical connections are required.

If flammable media is contained in the vessel, the trans-

mitter must be installed per Cl I, Div. 1 standards of

area classification.

To install General Purpose or Non-incendive wiring:

1. Remove the cover to the wiring compartment of the trans-

mitter. Install the conduit plug in the unused opening.

2. Install a conduit fitting and pull the supply wires.

3. Connect shield to an earth ground at power supply and

leave floating at the transmitter.

4. Connect an earth ground wire to the nearest green ground

screw. (Not shown in illustration.)

5. Connect the positive supply wire to the (+) terminal and

the negative supply wire to the (-) terminal.

6. Replace the cover to the wiring compartment of the

transmitter.

2.5.2 Intrinsically Safe

An intrinsically safe (IS) installation potentially has flam-

mable media present. An approved IS barrier must be

installed in the nonhazardous (safe) area. See Agency

Drawing – Intrinsically Safe Installation, Section 3.4.1.

Red (+)

lack (-)

(

(-)

50-660 Kotron

Model 805 Smart RF Level Transmitter

➪

To install Intrinsically Safe wiring:

1. Make sure the IS barrier is properly installed in the safe

area (refer to local plant or facility procedures). Complete

the wiring from the barrier to the Model 805 transmitter.

See Agency Specifications – Intrinsically Safe Installations,

Section 3.4.1.

2. Remove the cover to the wiring compartment of the trans-

mitter. Install the conduit plug in the unused opening.

3. Install a conduit fitting and pull the supply wires.

4. Connect shield to an earth ground at power supply and

leave floating at the transmitter.

5. Connect an earth ground wire to the nearest green ground

screw. (Not shown in illustration.)

6. Connect the positive supply wire to the (+) terminal and

the negative supply wire to the (-) terminal.

7. Replace the cover to the wiring compartment of the

transmitter.

2.6 Configuring and Calibrating the

Transmitter (LCD version)

Before configuring the Model 805 transmitter, collect the

operating parameters information. Then, power-up the

transmitter. Information on configuring the transmitter

using a HART

communicator is given in Configuration

Using HART, Section 2.7.

2.6.1 Operating Parameters

Some key information is needed to calibrate the Model

805 transmitter. Complete the configuration information

table. See Configuration Information, Section 1.1.2.

2.6.2 LCD Transmitter Display and Keypad

The Model 805 LCD transmitter has a liquid-crystal dis-

play (LCD) capable of showing two lines of 8 characters

each. Transmitter measurements and configuration menu

screens are shown on the LCD.

The transmitter default display is the measurement screen.

It cycles every 5 seconds to display LEVEL, %OUTPUT,

and LOOP information. The transmitter defaults to this

display after 5 minutes if no keystrokes are sensed.

The keypad has three arrows used to scroll through the

displays and to calibrate the transmitter – the Up ( ) or

Down ( ) Arrow keys and the Enter ( ) key.

Either the Lo Cal or Hi Cal point levels can be entered

first. It is not necessary to do the Lo Cal first. In addition,

the 4 mA and 20 mA setpoints can be entered for either

DIRECT action or REVERSE action as desired.

➪

50-660 Kotron

Model 805 Smart RF Level Transmitter

Arrows Function in Function in

isplay Mode Configuration Mode

Up and Down Moves forward and backward Increases or decreases the

in the configuration program value displayed or moves to

from one display to another. another choice.





Enter Enters the configuration mode Accepts a value and moves

(noted by an exclamation point to the next step of the

as the last character in the top configuration program.

display line).

2.6.3 Password Protection (Default = 0)

The Model 805 transmitter includes optional password

protection to restrict access to certain portions of the

menu structure that affect the operation of the system.

The password can be changed to any numerical value up

to 255. The password is required whenever configuration

values are changed.

The default password installed in the transmitter at the

factory is 0. The last step in the configuration menu pro-

vides the option to enter a new password. With 0 as the

password, the transmitter is no longer password protected

and any value in the menu can be altered without entering

a confirming password.

NOTE: If the password is not known, the menu item New Password

displays an encrypted value representing the present pass-

word. Call the factory with this encrypted value to determine

the present password.

2.6.4 LCD Menu: Step-By-Step Procedure

The following table provides a complete explanation of the

software menus displayed by the Model 805 transmitter.

Use this table as a step-by-step guide to configure the

transmitter.

The first column presents the menus shown on the trans-

mitter display. The displays are in the order they would

appear if the arrow keys were used to scroll through the

menu. The numbers are not shown on the display. They

are provided as a reference.

The second column provides the actions to take when con-

figuring the transmitter. Additional information or an

explanation of an action is given in the third column.

➪

50-660 Kotron

Model 805 Smart RF Level Transmitter

Display Action Comment

*Level*

%Output*

*Loop*

Transmitter Display Transmitter default display.  and 

values cycle every 5 seconds (two seconds each value).

Transmitter Display Level measurement in cm or in.

Transmitter Display Level as percentage of loop current (20 mA) span.

Transmitter Display Loop current output.

Select units for level lu = cm or in.

measurement display.

Enter level value for the Use Up and Down keys to set reading to present level of

lower calibration point. medium in vessel. See .

Transmitter Display Measured capacitance at low calibration point.

Enter level value for the Move the level in the tank. Use Up and Down keys to set

higher calibration point. reading to present level of medium in vessel. See .

Transmitter Display Measured capacitance at high calibration point.

Enter the level value for the Use Up and Down keys to set reading to level corresponding

4 mA point. to 4 mA loop current.

Enter the level value for the Use Up and Down keys to set reading to level corresponding

20 mA point. to 20 mA loop current.

Enter damping factor. Choose the damping factor (1–45 sec) for smoothing the

level/output/loop displays.

Enter the desired loop current Select 22 mA, 3.6 mA or Hold. (3.6 mA is not valid if unit

in presence of a fault. includes digital display and HART)

Enter HART poll address. Select a HART poll address (0–15). Enter 0 for a single

transmitter installation.

Trim loop current to 4.00 mA. With a meter in the loop, use Up and Down keys to adjust

current to 4.00 mA.

Trim loop current to 20.00 mA. With a meter in the loop, use Up and Down keys to adjust

current to 20.00 mA.

Enter test value of loop current Use Up and Down keys to set loop current to a desired value

(3.5–22.0 mA) for testing.

Transmitter Display Measured capacitance at present level of medium in vessel.

Transmitter Display Internal timing count with known capacitance in circuit

(factory diagnostic).

Transmitter Display Internal timing count with probe disconnected (factory

diagnostic).

Transmitter Display Internal timing count at present level of medium in vessel

(factory diagnostic).

Select Yes to reinitialize Resets all configuration parameters to factory default

all values values.

Transmitter Display Shows version number of firmware.

Enter new password Use Up and Down keys to select desired value (0–255).

Level

xx.x lu

%Output

xx.x%

Loop

xx.xx mA

Units

Lo Cal

xxx.x lu

Lo Cap

xxxx pF

Hi Cal

xxx.x lu

Hi Cap

xxxx pF

Set 4mA

xxx.x lu

Set 20mA

xxx.x lu

Damping

xx sec

Fault

Choice

Poll Adr

Trim 4

xxx

Trim 20

xxxx

Loop Tst

xx.x mA

Prb Rdg

xxxx pF

Osc Tst

xxxx tk

Opn Prb

xxxx tk

# Ticks

xxxxx tk

Reinit

Ver n.nAa

New Pass

xxx

RUN MODE

CALIBRATION/CONFIGURATION

DIAGNOSTICS

50-660 Kotron

Model 805 Smart RF Level Transmitter

2.7 Configuring and Calibrating the

Transmitter Using HART

A HART (Highway Addressable Remote Transducer)

remote unit can be used to provide a communication link

to the Model 805 transmitter. When connected to the

control loop, the same system measurement readings

shown on the transmitter are shown on the communicator.

In addition, the communicator can be used to configure

the transmitter.

The HART communicator may need to be updated to

include the Model 805 software (Device Descriptors).

Contact your local HART Service Center for additional

information.

2.7.1 Connections

A HART communicator can be operated from a remote

location by connecting to a remote junction or by con-

necting directly to the terminal block in the electronics

housing of the Model 805 transmitter.

HART uses the Bell 202 frequency shift key technique of

high-frequency digital signals. It operates on the 4–20 mA

loop and requires 250 Ω of minimum load resistance.

A typical connection between a communicator and the

Model 805 transmitter is illustrated.

2.7.2 HART Display Menu

When connected, the top line of each online menu

displays the model (Model 805) and its tag number or

address. For detailed operating information, refer to the

instruction manual provided with the HART communicator.

The Model 805 transmitter online menu tree is shown in

the following illustration. Open the menu by pressing the

alphanumeric key 1, Device Setup, to display the second-

level menu.

2.7.3 HART Device Description (DD)

Device Version 1 (Dev v1), Device Description 2

(DD v2) was registered with HART Communication

Foundation in May, 1999 and is available on the

CD-ROM 1999–2 issued in July, 1999.

Junction

> 250 1

Control

Room

Display

Power

Supply

Current

Meter

50-660 Kotron

Model 805 Smart RF Level Transmitter

1 Calibration

Basic Setup

3 Advanced Setup/

Configuration

4 Diagnostics

5 Review

1 Units

2 Empty Calibration

3 Full Calibration

4 4 mA Set Point

5 20 mA Set Point

6 Damping

7 Fault State

8 Date/Time/Initials

1 Device Setup

2 Level

3 % Level Output

4 Loop

1 Tag

2 Descriptor

3 Date

4 Message

5 Final Asmbly Num

6 Poll Address

7 New Password

1 Loop Test

2 Error Codes

3 Probe Reading

4 Cap at Empty Cal

5 Cap at Full Cal

1 3.6 mA

2 4 mA

3 20 mA

4 22 mA

5 Other

1 Model

2 Manufacturer

3 Dev id

4 Tag

5 Descriptor

6 Date

7 Message

8 Units

9 Cap at Empty Cal

10 Cap at Full Cal

11 4 mA Set Point

12 20 mA Set Point

13 Damping

14 Fault State

15 Date/Time/Initials

16 FinalAsmbly Num

17 Universal Rev

18 Fld Dev Rev

19 Software Rev

20 Poll Address

21 Num Req Preams

22 Firmware Version

1 Adjust 4 mA Trim

2 Adjust 20mA Trim

3 4mA Trim Value

4 20mA Trim Value

5 Enter Password

6 Set Magnetrol S/N

7 Set Dev ID Number

2.7.4 HART Menu

50-660 Kotron

Model 805 Smart RF Level Transmitter

3.0 Reference Information

This section presents an overview of the operation of the

KOTRON Model 805 transmitter, information on trou-

bleshooting common problems, listings of agency

approvals, lists of replacement and recommended spare

parts, and detailed physical, functional, and performance

specifications.

3.1 Description

Model 805 is a two wire, 24 VDC, level transmitter based

on the concept of RF Capacitance.

The Model 805 electronics are housed in an ergonomic

housing comprised of two tandem compartments angled at

45 degrees for ease of wiring and calibration. These two

compartments connect via an explosion-proof and water-

tight feed-through.

3.2 Theory of Operation

RF capacitance electronic level measurement utilizes the

same fundamentals as any electronic capacitor (Figure A).

A capacitor is formed when an AC signal is applied across

two conductive plates separated by an insulating medium,

or dielectric. The value of a capacitor is determined by the:

1. Area of the conductive plates (A);

2. Distance between the plates (D), and;

3. Dielectric of the insulating medium between the

plates (E). Refer to Figure A.

Capacitance = EA/D

(The AC frequency is fixed as part of the design.)

Current Meter

–

Test

urrent Meter

Power Supply

24 Vdc

–

Conductive

Plate

Conductive

Plate

Insulating

Medium

Figure A

50-660 Kotron

Model 805 Smart RF Level Transmitter

Capacitance is measured in Farads. The value we utilize in

industrial measurement is an extremely small unit called a

pico Farad (pF). A pico Farad is one trillionth of a Farad

(10

-12

Capacitance value increases as the dielectric increases,

the plate size increases, or the distance between the

plates decreases.

In industrial applications (Figure B), the probe is one plate

of the capacitor, the tank wall is the other plate (ground

reference). The insulating material that separates them is

the dielectric. A tank that is empty is actually filled with

air that has a dielectric of 1, the baseline of the dielectric

scale. All materials have a dielectric higher than air, e.g.

oil = 2.5, alcohol = 18, tap water = 80, etc. As a tank is

filled with media, the air (dielectric = 1) is being displaced

by the media having a higher dielectric; consequently, the

amount of capacitance being generated between the probe

and the tank wall increases.

3.3 Troubleshooting

The Model 805 transmitter is designed and built for

trouble-free operation over a wide range of operating con-

ditions. Common transmitter problems are discussed in

terms of their symptoms and recommended corrective

actions. In addition, information on how to handle mater-

ial build-up on the probe is provided in this section.

WARNING! Explosion hazard. Do not connect or disconnect

equipment unless power has been switched off or the

area is known to be safe.

are

etal

robe

Metal

tank wall

(ground

eference)

Non-conductive

(

insulating)

medium

Figure B

50-660 Kotron

Model 805 Smart RF Level Transmitter

OUTPUT signal always HART Poll address Change HART Poll Address to 0.

at 4 mA. is not 0. See Secion 2.6.4, Step 14.

LEVEL, % OUTPUT and LOOP values Basic configuration data is Check values and recalibrate if

are all inaccurate. questionable. necessary (either or both points).

LEVEL readings are repeatable but Configuration data does not Recalibrate if necessary.

consistently high or low from actual accurately match tank height.

by a fixed amount.

EVEL, % OUTPUT and LOOP Turbulence. Increase the Damping factor until the

values fluctuate. readings stabilize.

LOOP value jittery, usually in tenths Factory settings corrupted. Check # of Ticks. If the number is

or hundredths digit. also jittery, consult the Factory.

HART device only: handheld will only Most current Device Descriptors Contact local HART service center for the

read Universal Commands. (DDs) are not installed in handheld latest DDs.

HART device only; reads Product Early HART software does not Contact manufacturer of your HART

information (e.g., Mfgs. ID, Device #, account for Mfgs. ID #’s greater master software for upgrade. This is a

Serial #, etc.) but will not read any than 63. The Magnetrol ID is 86. shortcoming of early HART master

process variables. software.

Symptom Problem Solution

3.3.1 Troubleshooting System Problems

805 FAULT Open probe. Check probe wiring and electronics

(Open) module connector.

805 FAULT Shorted probe. Check probe wiring and integrity of

(Shorted) insulated probe in conductive liquid.

OSC FAIL Malfunctioning analog board and/or Check connection between boards and

(HART error code = 0x40) 32 pin connector. replace electronic module if necessary.

ABV RNG Above range. Measured capacitance > 12,000 pF.

Contact factory.

CORRUPT PARAMTRS Configuration parameters may Check all Configuration parameters and.

(HART error code = 0x10) have been lost. recalibrate if necessary.

SFWR ERROR Software error. Bad internal state, unexpected condition.

Contact factory.

LEVEL Unit is not calibrated. Make sure that both Lo Cal and Hi Cal

(Uncal) points have been entered.

3.3.2 Error Messages

Symptom Problem Solution

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Magnetrol Kotron 805 Istruzioni per l'uso

Marca: Magnetrol

Modello: Kotron 805

Categoria: Misurazione, test

Tipo: Istruzioni per l'uso

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