ProMinent GMXa Operating Instructions Manual

Solenoid Metering Pump

gamma/ X, GMXa

Operating instructions

EN

Original Operating Instructions (2006/42/EC)Part no. 984586 BA G 044 04/15 EN

Please carefully read these operating instructions before use. · Do not discard.

The operator shall be liable for any damage caused by installation or operating errors.

The latest version of the operating instructions are available on our homepage.

Read the following supplementary information in its entirety! Should you

already know this information, you will benefit more from referring to the

operating instructions.

The following are highlighted separately in the document:

n Enumerated lists

Instructions

ð

Outcome of the instructions

Ä ‘State the identity code and serial number’ on page 2

: Links to points in

this chapter

- refer to ... : References to points in this document or another document

[Keys]

‘Menu level 1

è

Menu level 2

è

Menu level ...’

: Menu paths

‘Software interface text’

Information

This provides important information relating to the correct

operation of the unit or is intended to make your work easier.

Safety Information

Safety information is identified by pictograms - see "Safety Chapter".

Please state the identity code and serial number, which you can find on

the nameplate or in the menu under

‘Setting / Menu

è

Information’

when

you contact us or order spare parts. This enables the unit type and mate‐

rial versions to be clearly identified.

Supplementary information

Fig. 1: Please read!

State the identity code and serial number

Supplemental instructions

2

Table of contents

1

Identity code.................................................................................... 5

2 About this pump............................................................................... 7

3 Safety chapter................................................................................. 8

4 Storage, Transport and Unpacking................................................ 13

5 Overview of Equipment and Control Elements.............................. 14

5.1 Overview of Equipment......................................................... 14

5.2 Control Elements................................................................... 15

5.2.1 Control Elements................................................................ 15

5.2.2 Key Functions.................................................................... 18

6 Functional Description................................................................... 20

6.1 Liquid End............................................................................. 20

6.2 Drive unit............................................................................... 20

6.3 Capacity................................................................................ 22

6.4 Self-Bleeding......................................................................... 22

6.5 Operating Modes................................................................... 22

6.6 Functions............................................................................... 23

6.7 Relay (Options)..................................................................... 23

6.8 LED Displays......................................................................... 24

6.9 Hierarchy of Operating Modes, Functions and Fault Sta‐

tuses......................................................................................

24

7 Assembly....................................................................................... 25

8 Installation, hydraulic..................................................................... 27

8.1 Installing hose lines............................................................... 28

8.1.1 Installation of Metering Pumps Without Bleed Valve......... 28

8.1.2 Installation of Metering Pumps With Bleed Valve.............. 31

8.1.3 Installation of Metering Pumps With Self-bleeding (SEK

Type).................................................................................. 31

8.2 Basic installation notes.......................................................... 32

9 Installation, Electrical..................................................................... 34

9.1 Supply voltage connector - mains voltage............................ 35

9.2 Description of the Terminals................................................. 35

9.2.1 "External control" Terminal................................................. 35

9.2.2 "Level switch" terminal....................................................... 36

9.2.3 "Dosing monitor" terminal................................................... 37

9.2.4 "Diaphragm rupture indicator" terminal.............................. 37

9.2.5 Relay.................................................................................. 38

10 Basic Set-up Principles.................................................................. 42

10.1 Basic Principles for Setting up the Control.......................... 42

10.2 Checking adjustable variables............................................ 44

10.3 Changing to set up mode.................................................... 44

11 Set Up /

‘Menu’

............................................................................. 45

11.1 Information.......................................................................... 45

11.2

‘Settings’

............................................................................ 45

11.2.1 Operating Mode............................................................... 45

11.2.2

‘Automatic’

...................................................................... 50

11.2.3

‘Stroke Length’

................................................................ 50

11.2.4 Metering........................................................................... 51

11.2.5 Calibrate........................................................................... 55

11.2.6 System............................................................................. 56

11.2.7 Inputs/Outputs.................................................................. 57

11.2.8 Bleed................................................................................ 60

11.2.9

‘Priming Time’

................................................................. 61

Table of contents

3

11.2.10

‘Time’

............................................................................ 61

11.2.11

‘Date’

............................................................................. 62

11.3 Service................................................................................ 62

11.3.1

‘Access Protect.’

............................................................. 62

11.3.2

‘Password ’

...................................................................... 63

11.3.3

‘Clear Counter’

................................................................ 63

11.3.4

‘Diaphragm Replacement’

............................................... 63

11.3.5

‘Display’

........................................................................... 63

11.3.6

‘Reset to Factory Settings’

.............................................. 63

11.4

‘Language’

........................................................................ 63

12 Operation....................................................................................... 64

12.1 Manual operation................................................................ 64

13 Maintenance.................................................................................. 66

14 Repairs.......................................................................................... 68

14.1 Cleaning Valves.................................................................. 69

14.2 Replacing the Diaphragm.................................................... 70

14.3 Cleaning the Diaphragm Rupture Indicator......................... 71

15 Troubleshooting............................................................................. 73

15.1 Faults Without a Fault Message.......................................... 73

15.2 Fault Messages................................................................... 74

15.3 Warning Messages............................................................. 75

15.4 All Other Faults................................................................... 75

16 Decommissioning.......................................................................... 76

17

Technical Data............................................................................... 78

17.1 Performance Data............................................................... 78

17.2 Accuracy............................................................................. 79

17.2.1 Standard Liquid End......................................................... 79

17.2.2 Self-Bleeding Liquid End.................................................. 79

17.3 Viscosity.............................................................................. 79

17.4 Material specifications......................................................... 80

17.5 Electrical Data..................................................................... 80

17.6 Temperatures...................................................................... 81

17.7 Climate................................................................................ 81

17.8 Degree of Protection and Safety Requirements.................. 81

17.9 Compatibility........................................................................ 81

17.10 Shipping Weight................................................................ 82

17.11 Sound pressure level........................................................ 82

18 Exploded Drawings and Ordering Information............................... 83

18.1 Exploded drawings.............................................................. 83

18.2 Ordering Information ........................................................ 115

19 Dimensional Drawings................................................................. 116

20

Diagrams for Setting the Capacity............................................... 125

21 EC Declaration of Conformity for Machinery............................... 128

22 Operating/Set-up Overview of the gamma/ X.............................. 129

23 Operating Menu of gamma/ X, Entire Unit................................... 131

24 Continuous Displays and Secondary Displays............................ 135

25 Index............................................................................................ 137

Table of contents

4

1 Identity code

Product range gamma/ X

GMXa Type

- - - - Performance data and type - see nameplate

Dosing head material

PP Polypropylene

NP Clear acrylic

PV PVDF

TT PTFE + carbon

SS Stainless steel

Seal material

B FPM

E EPDM

T PTFE

Dosing head design

0 Without bleed valve, without valve spring

1 Without bleed valve, with valve spring

2 With bleed valve, without valve spring

3 With bleed valve, with valve spring

4 Without bleed valve, with valve spring for more high-viscosity media

9 Self-bleeding with bypass (SEK)

Hydraulic connector

0 Standard connection in line with technical data

5 Connector for 12/6 hose, suction side standard

9 Connector for 10/4 hose, discharge side only, suction side standard

Diaphragm rupture indicator

0 Without diaphragm rupture indicator

1 With diaphragm rupture indicator, optical sensor

Design

0 Hous. RAL5003 / Hood RAL2003

M modified

Logo

0 with ProMinent logo

Electrical connection

U Universal control 100-230 V ±10%, 50/60 Hz

Cable and plug

A 2 m European

B 2 m Swiss

C 2 m Australian

D 2 m USA / 115 V

E 2 m Great Britain

Identity code

5

Product range gamma/ X

1 2 m open end

.. ...

Relay, pre-set to ...

0 No relay -

1 1 x changeover contact 230 V

– 8 A

Fault indicating relay (N/C)

4 2 x N/O 24 V – 100 mA as 1 + pacing relay

C 1 x N/O 24 V – 100 mA, and 1

x 4-20 mA output

As 1 + 4-20 mA output

.. ...

Accessories

0 without accessories

1 With foot and injection valve, 2 m suction line, 5 m metering

line

4 Multifunctional valve and accessories

Control version

0 Manual + external contact with pulse control

3 Manual + external contact with pulse control + analogue

0/4-20mA

4 As 0 + 4-week process timer

5 As 3 + 4-week process timer

C As 3 + CANopen

R

As 3 + PROFIBUS

®

interface, M12

Dosing monitor

0 Dynamic dosing monitor

Remote stop / Remote control

0 Without Bluetooth

1 With Bluetooth

Language

EN German

EN English

ES Spanish

FR French

IT Italian

... ...

Identity code

6

2 About this pump

Pumps in the ProMinent gamma/ X product range are microprocessor-con‐

trolled solenoid metering pumps with the following characteristics:

n Simple adjustment of the capacity directly in l/h

n Available material combinations: PP, PVDF, clear acrylic, PTFE and

stainless steel

n Special dosing head designs for gaseous and high-viscosity media

n Illuminated LC display and 3-LED display for operating, warning and

error messages, visible from all sides

n Factor with external contact control 99:1 ... 1:99

n Batch operation with max. 99,999 strokes/start pulse

n Input of concentration for simple adjustment with volume-proportional

metering tasks

n Stroke rate adjustment in 1 stroke/hour increments from 0 ... 12,000

strokes/h

n Electronic stroke length adjustment, continuous from 0 ... 100% (rec‐

ommended 30 ... 100%)

n Connector for 2-stage level switch

n External control via 0/4-20 mA standard signal with adjustable assign‐

ment of signal value to stroke rate

n Optional 4-20 mA output for remote transmission of stroke length and

stroke rate

n Universal power supply unit 100 V - 230 V, 50/60 Hz

n Optional 230 V relay module, can also be retrofitted easily and

securely

n Optional 24 V combined relay, can also be retrofitted easily and

securely

The hydraulic parts of the gamma/ X are identical to those of the Beta

®

(not with types 0220, 0424 and 0245).

About this pump

7

3 Safety chapter

The following signal words are used in these operating instructions to

denote different severities of danger:

Signal word Meaning

WARNING Denotes a possibly dangerous sit‐

uation. If this is disregarded, you

are in a life-threatening situation

and this can result in serious inju‐

ries.

CAUTION Denotes a possibly dangerous sit‐

uation. If this is disregarded, it

could result in slight or minor inju‐

ries or material damage.

The following warning signs are used in these operating instructions to

denote different types of danger:

Warning signs Type of danger

Warning – automatic start-up.

Warning – high-voltage.

Warning – danger zone.

n Only use the pump to meter liquid feed chemicals.

n Only use the pump after it has been correctly installed and started up

in accordance with the technical data and specifications contained in

the operating instructions.

n Observe the general limitations with regard to viscosity limits, chem‐

ical resistance and density - see also ProMinent resistance list in the

Product Catalogue or at www.prominent.com!

n All other uses or modifications are prohibited.

n The pump is not intended for the metering of gaseous media and

solids.

n The pump is not intended for the metering of flammable media without

implementing suitable protective measures.

n The pump is not intended for the metering of explosive media.

n The pump is not intended for operation in areas at risk from explosion.

n The pump is not intended for exterior applications without the imple‐

mentation of suitable protective measures.

n The pump should only be operated by trained and authorised per‐

sonnel, see the following "Qualifications" table.

n You are obliged to observe the information contained in the operating

instructions at the different phases of the unit's service life.

Identification of safety notes

Warning signs denoting different types of

danger

Intended Use

Safety chapter

8

WARNING!

Warning about personal and material damage

The pump can start to pump, as soon as it is connected to

the mains voltage.

– Install an emergency cut-off switch in the pump power

supply line or integrate the pump in the emergency cut-

off management of the system.

WARNING!

Warning of personal injury and material damage

The pump can start pumping as soon as it has cooled down

after the error

‘temperature’

.

– Take this into account with the pump and your installa‐

tion.

WARNING!

Danger of electric shock

A mains voltage may exist inside the pump housing.

– If the pump housing has been damaged, you must dis‐

connect it from the mains immediately. It may only be

returned to service after an authorised repair.

WARNING!

Warning of dangerous or unknown feed chemical

Should a dangerous or unknown feed chemical be used: It

may escape from the hydraulic components when working

on the pump.

– Take appropriate protective measures before working on

the pump (e.g. safety glasses, safety gloves, ...).

Observe the safety data sheet for the feed chemical.

–

Drain and flush the liquid end before working on the

pump.

WARNING!

Fire danger

When pumping inflammable media the operator must take

suitable safety precautions.

WARNING!

Danger from hazardous substances!

Possible consequence: Fatal or very serious injuries.

Please ensure when handling hazardous substances that

you have read the latest safety data sheets provided by the

manufacture of the hazardous substance. The actions

required are described in the safety data sheet. Check the

safety data sheet regularly and replace, if necessary, as the

hazard potential of a substance can be re-evaluated at any

time based on new findings.

The system operator is responsible for ensuring that these

safety data sheets are available and that they are kept up to

date, as well as for producing an associated hazard assess‐

ment for the workstations affected.

Safety Information

Safety chapter

9

CAUTION!

Warning of feed chemical spraying around

Feed chemical can spray out of the hydraulic components if

they are manipulated or opened due to pressure in the liquid

end and adjacent parts of the system.

– Disconnect the pump from the mains power supply and

ensure that it cannot be switched on again by unauthor‐

ised persons.

–

Depressurise the system before commencing any work

on hydraulic parts.

CAUTION!

Warning of feed chemical spraying around

The metering pump can generate a multiple of its rated pres‐

sure. Hydraulic parts can rupture if a discharge line is

blocked.

– Correctly install a relief valve in the discharge line down‐

stream of the metering pump.

CAUTION!

Warning of feed chemical spraying around

An unsuitable feed chemical can damage the wetted parts of

the pump.

– Take into account the resistance of the wetted materials

when selecting the feed chemical - see the ProMinent

Product Catalogue or visit our homepage.

CAUTION!

Danger of injury to personnel and material damage

The use of untested third party components can result in

injury to personnel and material damage.

– Only fit parts to metering pumps that have been tested

and recommended by ProMinent.

CAUTION!

Danger from incorrectly operated or inadequately maintained

pumps

Danger can arise from a poorly accessible pump due to

incorrect operation and poor maintenance.

– Ensure that the pump is accessible at all times.

– Adhere to the maintenance intervals.

CAUTION!

Danger from incorrect dosing

The metering behaviour of the pump changes if a different

liquid end size is fitted.

– Reprogram the pump in the

‘Menu / Information

è

Settings

è

System

è

Change head type’

menu.

Safety chapter

10

CAUTION!

Warning against illegal operation

Observe the regulations that apply where the device is

installed.

n Covers for the slots for relays and optional modules - see the chapter

entitled "Overview of Equipment and Control Elements"

Customers should only remove the cover for the slots for relays and

optional modules and/or a relay or optional module in line with the supple‐

mentary instructions for the relays and optional modules.

Customer should only remove the dosing head in accordance with the

"Repair" chapter.

Only the ProMinent Service department is authorised to open the housing

and the hood (housing the control elements).

In an emergency, either disconnect the mains plug, press

[Start/Stop]

or press the Emergency Stop switch installed on the customer's side or

disconnect the pump from the mains/power supply in line with the Emer‐

gency Stop management guidelines for your system.

If feed chemical escapes, additionally ensure that the pump's hydraulic

environment is at atmospheric pressure. Adhere to the material safety

data sheet for the feed chemical.

Task Qualification

Storage, transport, unpacking Instructed person

Assembly Technical personnel, service

Planning the hydraulic installation Qualified personnel who have a

thorough knowledge of metering

pumps

Hydraulic installation Technical personnel, service

Installation, electrical Electrical technician

Operation Instructed person

Maintenance, repair Technical personnel, service

Decommissioning, disposal Technical personnel, service

Troubleshooting Technical personnel, electrical

technician, instructed person,

service

Explanation of the table:

Qualified personnel

A qualified employee is deemed to be a person who is able to assess the

tasks assigned to him and recognise possible dangers based on his/her

technical training, knowledge and experience, as well as knowledge of

pertinent regulations.

Note:

A qualification of equal validity to a technical qualification can also be

gained by several years of employment in the relevant field of work.

Electrical technician

An electrical technician is able to complete work on electrical systems and

recognise and avoid possible dangers independently based on his/her

technical training and experience, as well as knowledge of pertinent stand‐

ards and regulations.

Isolating protective equipment

Information in the event of an emergency

Qualification of personnel

Safety chapter

11

The electrical technician should be specifically trained for the working

environment in which he is employed and know the relevant standards

and regulations.

An electrical technician must comply with the provisions of the applicable

statutory directives on accident prevention.

Instructed person

An instructed person is deemed to be a person who has been instructed

and, if required, trained in the tasks assigned to him/her and possible dan‐

gers that could result from improper behaviour, as well as having been

instructed in the required protective equipment and protective measures.

Service

The Service department refers to service technicians, who have received

proven training and have been authorised by ProMinent to work on the

system.

Sound pressure level LpA < 70 dB according to EN ISO 20361

at maximum stroke length, maximum stroke rate, maximum back pressure

(water)

Sound pressure level

Safety chapter

12

4 Storage, Transport and Unpacking

WARNING!

Only return metering pumps for repair in a cleaned state and

with a flushed liquid end - refer to "Decommissioning!

Only return metering pumps with a completed Decontamina‐

tion Declaration form. The Decontamination Declaration con‐

stitutes an integral part of an inspection / repair order. A unit

can only be inspected or repaired when a Declaration of

Decontamination Form is submitted that has been completed

correctly and in full by an authorised and qualified person on

behalf of the pump operator.

The "Decontamination Declaration Form" can be found on

our homepage.

CAUTION!

Danger of material damage

The device can be damaged by incorrect or improper storage

or transportation!

– The unit should only be stored or transported in a well

packaged state - preferably in its original packaging.

– The packaged unit should also only be stored or trans‐

ported in accordance with the stipulated storage condi‐

tions.

– The packaged unit should be protected from moisture

and the ingress of chemicals.

Ambient conditions - refer to "Technical Data" chapter.

Compare the delivery note with the scope of delivery:

n Metering pump with mains cable

n Connector kit for hose/pipe connection (optional)

n Product-specific operating instructions with EC Declaration of Con‐

formity

n Optional accessories

Safety Information

Ambient conditions

Scope of delivery

Storage, Transport and Unpacking

13

5 Overview of Equipment and Control Elements

5.1

Overview of Equipment

1

P_G_0063_SW

2 3

Fig. 2: Overview of equipment, complete

1 Control unit

2 Drive unit

3 Liquid end

1

2

3

4

5

6

7

1

2

3

4

5

6

7

8

2

3

1

6

7

A.

B.

C.

P_G_0053_SW

Fig. 3: A. Liquid end with PV bleed valve; B. Liquid end with NP bleed valve; C. Self-bleeding liquid end (SEK)

1 Discharge valve

2 Backplate

3 Dosing head

4 Bleed valve

5 Bypass hose sleeve

6 Diaphragm rupture indicator (optional)

7 Suction valve

8 Bleed valve, self-bleeding

Overview of Equipment and Control Elements

14

5.2 Control Elements

11 13

14

12

3

1

5

4

2

10

9

8

7

6

a)

b)

P_G_0051_SW

Fig. 4

1 LCD screen

2

[Menu]

key

3

Clickwheel

4

[Priming]

key

5

[STOP/START]

key

6

[Back]

key

7 Fault indicator (red)

8 Warning indicator (yellow)

9 Operating indicator (green)

10 "Diaphragm rupture indicator" terminal

11 "External control" terminal

12 "Dosing monitor" terminal

13 "Level switch" terminal

14 Slot for relay and optional modules

5.2.1 Control Elements

Use this overview to familiarise yourself with the keys and

the other control elements on the pump!

Control elements, overview

Overview of Equipment and Control Elements

15

12.012.0

12000

2.5

CONTACT

memory

bar

l/h

CAN

open

hh

B0778

1

3

2

Fig. 5: Construction of continuous display

1 Status bar

2 Continuous display, central area

3 Secondary display

Refer to the chapter entitled "Main Displays and Secondary Displays" in

the Appendix for the different main displays and secondary displays.

The LCD screen supports the operation and adjustment of the pump by

providing different information and identifiers:

12.012.0

12000

2.5

Dosing monitor!

CONTACT

memory

bar

l/h

CAN

open

hh

12000

ANALOGUE

hh

Input signal < 4 mA

i < 4 mAi < 4 mA

B0605

a)

b)

i < 4 mA!

Fig. 6: a) Continuous display with warning message; b) Continuous display

with fault message. Explanation of the symbols in the following tables.

The above Figure, Part a) shows that:

n The pump is in operation

n Is in

‘Contact’

operating mode with "memory" stroke memory.

n The average system pressure is 2.5 bar

n A dosing monitor is connected

n A CAN module is being used

n A log entry has been made

n A warning message for the

‘dosing monitor’

is pending

n The capacity of 12.0 l/h has been set

n The stroke rate is 12,000 strokes / h

Pressure display

Display Meaning

Displays the average system pressure

Pressure display, identifier and fault dis‐

plays on the LCD screen

Overview of Equipment and Control Elements

16

Identifier and error displays:

Identifier Meaning

The pump is working or waiting for a starting signal.

The pump was manually stopped using the

[STOP/START]

key.

The pump was remotely stopped (Pause) - via the "External" terminal.

The pump was stopped by an error.

Only with cyclical batch metering: the pump waits for the next cycle.

Only with

‘Access. protect’

: the pump software is locked.

‘AUX’

The pump is currently pumping at auxiliary capacity and/or auxiliary frequency.

‘memory’

Only in

‘CONTACT’

and

‘BATCH’

operating modes:

The auxiliary function "Stroke memory" has been set.

The pump is in

‘ANALOGUE’

operating mode.

The

‘Curve

è

linear’

type of processing is set.

The pump is in

‘ANALOGUE’

operating mode.

The

‘Curve

è

Upper side band’

type of processing is set.

‘Metering

è

Discharge stroke

è

optimum’

metering profile has been set.

‘Metering

è

Discharge stroke

è

fast’

metering profile has been set.

‘Metering

è

Discharge stroke

è

sine mode’

metering profile has been set.

‘Metering

è

Discharge stroke

è

continuous’

metering profile has been set.

‘Metering

è

Discharge stroke

è

DFMa’

metering profile has been set.

‘Metering

è

Discharge stroke

è

normal’

metering profile has been set.

Overview of Equipment and Control Elements

17

Identifier Meaning

‘Metering

è

Discharge stroke

è

HV1’

metering profile has been set.

‘Metering

è

Discharge stroke

è

HV2’

metering profile has been set.

‘Metering

è

Discharge stroke

è

HV3’

metering profile has been set.

A dosing monitor "Flow Control" is connected.

A diaphragm rupture indicator is connected.

The pump is in the

‘Menu’

(Set up).

Further explanations can be found in the "Troubleshooting"

chapter.

The pump only shows the metering volume and the capacity

in the calibrated state in l or l/h or in gal or gal/h.

5.2.2 Key Functions

Key Application In the continuous displays In the menu

[Back]

press - Move back to the previous menu

point (or a continuous display) -

without saving

Press

[STOP/

START]

press Stop pump, Stop pump,

Start pump Start pump

[Menu]

press Move to the menu Move back to a continuous display

[Priming]

press Priming Priming

[Clickwheel]

press Start batch (only in

‘Batch’

operating

mode)

Acknowledge errors

Move to next menu option (or a

continuous display)

Confirm entry and save

[Clickwheel]

turn Switch between the continuous dis‐

plays

Change figure or change selection

Overview of Equipment and Control Elements

18

Refer to the "Set-up Basics" chapter to adjust figures

Overview of Equipment and Control Elements

19

6 Functional Description

6.1

Liquid End

The dosing process is performed as follows: The diaphragm is pressed

into the dosing head; the pressure in the dosing head closes the suction

valve and the feed chemical flows through the discharge valve out of the

dosing head. The diaphragm is now drawn out of the dosing head; the dis‐

charge valve closes due to the negative pressure in the dosing head and

fresh feed chemical flows through the suction valve into the dosing head.

One cycle is completed.

6.2 Drive unit

The diaphragm is driven by an electromagnet, controlled by an electronic

control.

The drive technology on the gamma/ X enables the timed progress of the

flow to be precisely matched to the requirements of the particular applica‐

tion.

This ensures that the user can set the optimum discharge stroke for his

application, as required:

Pos.* Discharge

stroke

Application

A.

‘optimum’

For maximum accuracy when metering and

the very best results with internal pressure

measurement and special functions.

B.

‘fast’

For as fast a discharge stroke as possible -

the duration of the discharge stroke is

dependent on the stroke rate.

C.

‘Sine mode’

For a long, sine-shaped discharge stroke -

the duration of the discharge stroke is

dependent on the stroke rate.

D.

‘continuous’

For a continuous discharge stroke e.g. for

bottling processes. The duration of the dis‐

charge stroke is dependent on the stroke

rate.

E.

‘DFMa’

For optimum operation with a flow meter Dul‐

coFlow

®

DFMa.

* see following drawing.

Drive technology

Functional Description

20

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