ABB HART FEP300 Installation and operation manual

CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster
Commissioning Instruction
Electromagnetic Flowmeter
FEP300/FEH300

Neu
Electromagnetic Flowmeter
ProcessMaster / HygienicMaster
Commissioning Instruction - EN
CI/FEP300/FEH300-EN
08.2008
Manufacturer:
ABB Automation Products GmbH
Dransfelder Straße 2
D-37079 Göttingen
Germany
Tel.: [phone]
Fax: [phone]
[email protected]
© Copyright 2008 by ABB Automation Products GmbH
Subject to change without notice
This document is protected by copyright. It assists the user with the safe and efficient operation of the
device. The contents may not be copied or reproduced in whole or in excerpts without prior approval of
the copyright holder.
Contents

Contents
2 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
1Safety....................................................................................................................................................................4
1.1 General Safety Information ............................................................................................................................4
1.2 Symbols and warnings ...................................................................................................................................4
1.3 Intended use...................................................................................................................................................5
1.4 Improper use ..................................................................................................................................................5
1.5 Technical limit values .....................................................................................................................................5
1.6 Allowed Fluids ................................................................................................................................................6
1.7 Operator liability .............................................................................................................................................6
1.8 Personnel qualification ...................................................................................................................................6
1.9 Transport safety information ..........................................................................................................................6
1.10 Installation safety information.........................................................................................................................7
1.11 Electrical installation safety information .........................................................................................................7
1.12 Operating safety information ..........................................................................................................................7
2Transport..............................................................................................................................................................8
2.1 Inspection .......................................................................................................................................................8
2.2 Transport of flanged units smaller than DN 450 ............................................................................................8
2.3 Transport of flanged units larger than DN 400...............................................................................................8
3Installation............................................................................................................................................................9
3.1 General information on installation.................................................................................................................9
3.1.1 Supports for meter sizes larger than DN 400..........................................................................................9
3.1.2 Mounting the measuring tube................................................................................................................10
3.2 Torque information .......................................................................................................................................11
3.2.1 Flanged units ProcessMaster and HygienicMaster ..............................................................................11
3.2.2 Wafer type unit (HygienicMaster)..........................................................................................................13
3.2.3 Variable process connections (HygienicMaster)...................................................................................13
3.3 Information on 3A conformity .......................................................................................................................14
3.4 Installation Requirements.............................................................................................................................15
3.4.1 Electrode axis........................................................................................................................................15
3.4.2 In- and outlet pipe sections ...................................................................................................................15
3.4.3 Vertical connections ..............................................................................................................................15
3.4.4 Horizontal connections..........................................................................................................................15
3.4.5 Free inlet or outlet .................................................................................................................................15
3.4.6 Strongly contaminated fluids.................................................................................................................15
3.4.7 Installation in the vicinity of pumps .......................................................................................................16
3.4.8 Installing the high temperature design..................................................................................................16
3.4.9 Installation in pipelines with larger nominal diameters..........................................................................16
3.5 Ground..........................................................................................................................................................17
3.5.1 General information on ground connections.........................................................................................17
3.5.2 Metal pipe with fixed flanges.................................................................................................................17
3.5.3 Metal pipe with loose flanges................................................................................................................18
3.5.4 Non-metallic pipes or pipes with insulating liner ...................................................................................18
3.5.5 Sensor type HygienicMaster .................................................................................................................19

Contents
CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster EN - 3
3.5.6 Ground for devices with hard rubber lining ...........................................................................................19
3.5.7 Ground for devices with protective plates.............................................................................................19
3.5.8 Ground with conductive PTFE grounding plate ....................................................................................19
3.6 Preparing and routing the signal and magnet coil cable..............................................................................20
3.6.1 Protection class IP 68 ...........................................................................................................................22
3.7 Connecting the transmitter ...........................................................................................................................24
3.7.1 Connecting the supply power................................................................................................................24
3.7.2 Transmitter ............................................................................................................................................25
3.7.3 Electrical connection diagram ...............................................................................................................26
4Startup Operation..............................................................................................................................................28
4.1 Preliminary checks prior to start-up..............................................................................................................28
4.2 Operation......................................................................................................................................................28
4.2.1 Menu navigation....................................................................................................................................28
4.2.2 Process display .....................................................................................................................................29
4.3 Commissioning the unit................................................................................................................................30
4.3.1 Downloading the system data...............................................................................................................30
4.3.2 Parametrizing via the "Easy Set-up" menu function .............................................................................31
4.3.3 Changing to the information level .........................................................................................................34
4.4 Flowmeter sizes. flow range.........................................................................................................................35
5Appendix ............................................................................................................................................................36
5.1 Additional documents...................................................................................................................................36
5.2 Permits and certifications .............................................................................................................................36

Safety
4 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
1 Safety
1.1 General Safety Information
The “Safety” chapter provides an overview of the safety aspects to be observed for the
operation of the device.
The device is built based on state-of-the-art technology and is operationally safe. It was tested
and left the factory in a proper state. The requirements in the manual as well as the
documentation and certificates must be observed and followed in order to maintain this state for
the period of operation.
The general safety requirements must be complied with completely during operation of the
device. In addition to the general information, the individual chapters of the manual contain
descriptions about processes or procedural instructions with specific safety information.
Only the observance of all safety information enables the optimal protection of personnel as well
as the environment from hazards and the safe and trouble-free operation of the device.
1.2 Symbols and warnings
Danger – <Serious damage to health / risk to life>
One of these symbols in conjunction with the “Danger“ warning indicates an imminent danger.
If it is not avoided, death or serious injury will result.
Warning – <Bodily injury>
The symbol in conjunction with the “Warning“ message indicates a possibly dangerous
situation. If it is not avoided, death or serious injury could result.
Caution – <Slight injuries>
The symbol in conjunction with the “Caution“ message indicates a possibly dangerous
situation. If it is not avoided, slight or minor injury can result. May also be used for property
damage warnings.
Notice – <Property damage>
The symbol indicates a possibly damaging situation. If it is not avoided, the product or
something in its area can be damaged.
Important
The symbol indicates operator tips or especially useful information. This is not a message for a
dangerous or damaging situation.

Safety
CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster EN - 5
1.3 Intended use
This device is intended for the following uses:
• To transmit fluid, pulpy or pasty substances with electrical conductivity.
• To measure the flowrate of the operating volume or mass flow units (at constant pressure /
temperature), if a mass engeineering unit is selected.
The following items are included in the intended use:
• Read and follow the instructions in this manual.
• Observe the technical ratings; refer to the section “Technical limit values”.
• Use only allowed liquids for measurement; refer to the section “Allowed fluids”.
1.4 Improper use
The following uses of the device are prohibited:
• Operation as a flexible adapter in piping, e.g., to compensate for pipe offsets, pipe vibrations,
pipe expansions, etc.
• Use as a climbing aid, e.g., for assembly purposes.
• Use as a support for external loads, e.g., as a support for pipes, etc.
• Material gain, e.g., by painting over the name plate or adding parts by welding / soldering.
• Material loss, e.g., by drilling the housing.
1.5 Technical limit values
The device is designed for use exclusively within the stated values on the name plate and within
the technical limit values specified in the data sheets.
The following technical limit values must be observed:
• The permissible operating pressure (PS) in the permissible temperature (TS) may not
exceed the pressure-temperature ratings.
• The maximum operating temperature may not be exceeded.
• The permitted operating temperature may not be exceeded.
• The housing protection system must be observed.
• The flowmeter sensor may not be operated in the vicinity of powerful electromagnetic fields,
e.g., motors, pumps, transformers, etc. A minimum spacing of approx. 1 m (3.28 ft) should
be maintained. For installation on or to steel parts (e.g., steel brackets), a minimum spacing
of approx. 100 mm (3.94 inch) should be maintained (based on IEC801-2 and IECTC77B).

Safety
6 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
1.6 Allowed Fluids
When measuring fluids, the following points must be observed:
• Fluids may only be used if, based on state-of-the-art technology or the operating experience
of the user, it is assured that chemical and physical properties of the components coming
into contact with the fluids (signal electrodes, ground electrodes, liners and, possibly,
process connections, protective plates or protective flanges) are not affected during the
operating life.
• Fluids with unknown properties or abrasive fluids may only be used if the operator can
perform regular and suitable tests to ensure the safe condition of the device.
• Observe the information on the name plate.
1.7 Operator liability
Before the use of corrosive and abrasive measuring fluid, the operator must clarify the
resistance of all parts that come into contact with the fluid to be measured. ABB will gladly
support you with the selection, however, cannot accept any liability.
The operators must strictly observe the applicable national regulations in their countries with
regards to installation, function tests, repairs, and maintenance of electrical devices.
1.8 Personnel qualification
The installation, commissioning and maintenance of the device may only be carried out through
trained specialist personell authorized by the plant operator. The specialist personnel must have
read and understood the manual and comply with its instructions.
1.9 Transport safety information
Observe the following information:
• Depending on the device, the center of gravity may not be in the center of the equipment.
• The protective plates or dust caps mounted at the process connections of devices equipped
with PTFE/PFA may only be removed before installation.
To prevent possible leakage, make sure that the liner on the flange is not cut or damaged.

Safety
CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster EN - 7
1.10 Installation safety information
Observe the following instructions:
• The flow direction must correspond to the direction indicated on the device, if labeled.
• Comply with the maximum torque for all flange bolts.
• Install the devices without mechanical tension (torsion, bending).
• Install flange and wafer type units with coplanar counter flanges.
• Only install devices for the intended operating conditions and with suitable seals.
• Secure the flange bolts and nuts against pipeline vibrations.
1.11 Electrical installation safety information
The electrical connection may only be performed by authorized specialists according to the
electrical plans.
Comply with electrical connection information in the manual. Otherwise, the electrical protection
can be affected.
Ground the flowmeter and sensor housing.
The line for the supply power must be installed according to the relevant national and
international standards. A separate fuse must be connected upstream and in close proximity to
each unit. The fuses must be identified accordingly. The unit has a protection class of I and
overvoltage class II (IEC664).
The power supply and the electrical circuit for the coils of the sensor are dangerous and pose a
contact risk.
The coils and signal circuit can be connected with ABB sensors only. Use the supplied cable.
Only electrical circuits that do not pose a contact risk can be connected to the remaining signal
inputs and outputs.
1.12 Operating safety information
During operation with hot fluids, contact with the surface may result in burns.
Aggressive or corrosive fluids may result in damage to the parts which contact the fluid. As a
result, pressurized fluids may escape prematurely.
A pressurized fluid may escape due to wear on the flange seal or process connection gaskets
(e. g. aseptic threaded pipe connections, Tri-Clamp, etc.).
When using internal flat gaskets, these can become embrittled through CIP/SIP processes.

Transport
8 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
2 Transport
2.1 Inspection
Check the devices for possible damage that may have occurred during transport. Damages in
transit must be recorded on the transport documents. All claims for damages must be claimed
without delay against the shipper and before the installation.
2.2 Transport of flanged units smaller than DN 450
Warning – Danger of injuries due to slipping meter.
The center of gravity for the complete device may be higher than the lifting straps.
Make sure the device has not rotated or slipped unintentionally during transport. Support the
meter laterally.
For transport of flanged units smaller than DN 450 use a lifting strap. Wrap the straps around
both process connections when lifting the device. Avoid chains since these may damage the
housing.
Fig. 1: Transport of flanged units smaller than DN 450
2.3 Transport of flanged units larger than DN 400
Notice - Potential damage to device!
Use of a forklift to transport the device can bend the housing and damage the internal magnet
coils.
Flanged units may not be lifted at the middle of the housing when transporting via forklift.
Flanged units may not be lifted by the terminal box or at the middle of the housing. Use only the
eye bolts on the device to lift and install it in the pipeline.
Fig. 2: Transport of flanged units larger than DN 400

Installation
CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster EN - 9
3 Installation
3.1 General information on installation
The following points must be observed for the installation:
• The flow direction must correspond to the identification if present.
• The maximum torque for all flange connections must be complied with.
• The devices must be installed without mechanical tension (torsion, bending).
• Install flange and wafer type units with coplanar counter flanges and use only appropriate
gaskets.
• Use only gaskets made from a compatible material for the fluid and fluid temperatures.
• Gaskets must not extend into the flow area since possible turbulence could influence the
device accuracy.
• The pipeline may not exert excessive forces or torques on the device.
• Do not remove the plugs in the cable connectors until you are ready to install the electrical
cable.
• Make sure the gaskets for the housing cover are seated properly. Carefully seal the cover.
Tighten the cover fittings.
• A separate transmitter must be installed at a largely vibration-free location.
• Do not expose the transmitter and sensor to direct sunlight. Provide appropriate sun
protection if necessary.
• When installing the transmitter in a control cabinet, make sure adequate cooling is provided.
3.1.1 Supports for meter sizes larger than DN 400
Notice - Potential damage to device!
Improper support for the device may result in deformed housing and damage to internal
magnet coils.
Place the supports at the edge of the housing (see arrows in the figure).
Devices with meter sizes larger than DN 400 must be mounted with support on a sufficiently
strong foundation.
Fig. 3: Support for meter sizes larger than DN 400

Installation
10 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
F
3.1.2 Mounting the measuring tube
The device can be installed at any location in a pipeline under consideration of the installation
conditions.
Notice - Potential damage to device!
Use of graphite with the flange or process connection gaskets is prohibited. In some
instances, an electrically conductive coating may form on the inside of the measuring tube.
Vacuum shocks in the pipelines should be avoided to prevent damage to the liners (PTFE).
Vacuum shocks can destroy the device.
1. Remove protective plates, if present, to the right and left of the measuring tube. To prevent
possible leakage, make sure that the liner on the flange is not cut or damaged.
2. Position the measuring tube coplanar and centered between the pipes.
3. Install gaskets between the surfaces.
Important
For best results, make sure the flowmeter sensor gaskets fit concentrically with the measuring
tube.
4. Use the appropriate bolts for the flanges as per the section "Torque information”.
5. Slightly grease the threaded nuts.
6. Tighten the nuts in a crosswise manner as shown in the figure. Observe the torque values
specified under "Torque information".
First tighten the nuts to 50 % of maximum torque, then to 80 % and finally on the third time
tighten to the maximum. Do not exceed the maximum torque.
G00034
1
2
7
8
5
3
4
6
1
2
3
4
Fig. 4

Installation
CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster EN - 11
3.2 Torque information
3.2.1 Flanged units ProcessMaster and HygienicMaster
Meter size DN Nominal
pressure Screws Max. tightening torque
mm Inch PN Nm
40 4 x M12 8
CL 150 4 x M12 6
3 ... 101) 1/10 ... 3/8“1)
CL 300 4 x M12 7
40 4 x M12 10
CL 150 4 x M12 6
15 1/2“
CL 300 4 x M12 7
40 4 x M12 16
CL 150 4 x M12 8
20 3/4“
CL 300 4 x M16 13
40 4 x M12 21
CL 150 4 x M12 10
25 1“
CL 300 4 x M16 18
40 4 x M16 34
CL 150 4 x M12 15
32 1 1/4“
CL 300 4 x M16 27
40 4 x M16 43
CL 150 4 x M12 20
40 1 1/2“
CL 300 4 x M20 43
40 4 x M16 56
CL 150 4 x M16 39
50 2“
CL 300 8 x M16 28
16 4 x M16 34
40 8 x M16 39
CL 150 4 x M16 49
65 2 1/2“
CL 300 8 x M20 43
40 8 x M16 49
CL 150 4 x M16 69
80 3“
CL 300 8 x M20 62
16 8 x M16 47
40 8 x M20 77
CL 150 8 x M16 49
100 4“
CL 300 8 x M20 92
16 8 x M16 62
40 8 x M24 120
CL 150 8 x M20 76
125 5“
CL 300 8 x M20 120
16 8 x M20 83
40 8 x M24 155
CL 150 8 x M20 96
150 6“
CL 300 8 x M20 100
10 8 x M20 120
16 12 x M20 81
25 12 x M24 120
40 12 x M27 200
CL 150 8 x M20 135
200 8“
CL 300 12 x M24 170
Continued on next page

Installation
12 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
Meter size DN Nominal
pressure Screws Max. tightening torque
mm Inch PN Nm
10 12 x M20 97
16 12 x M24 120
25 12 x M27 175
40 12 x M30 320
CL 150 12 x M24 135
250 10“
CL 300 16 x M27 185
10 12 x M20 115
16 12 x M24 160
25 16 x M27 175
40 16 x M30 340
CL 150 12 x M24 180
300 12“
CL 300 16 x M30 265
10 16 x M20 145
16 16 x M24 195
350 14“
25 16 x M30 280
10 16 x M24 200
16 16 x M27 250
400 16“
25 16 x M33 365
500 20“ 10 20 x M24 200
600 24“ 10 20 x M27 260
700 28“ 10 24 x M27 300
800 32“ 10 24 x M30 390
900 36“ 10 28 x M30 385
1000 40“ 10 28 x M33 480
1) Connection flange DIN EN1092-1 = DN10 (3/8"), connection flange ASME = DN15 (1/2")

Installation
CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster EN - 13
3.2.2 Wafer type unit (HygienicMaster)
Meter size DN Nominal
pressure Screws Max. tightening torque
mm Inch PN Nm
40 4 x M12 2,3
CL 150 4 x M12 upon request
3 ... 81) 1/10 ... 5/16“1)
CL 300 4 x M12 upon request
40 4 x M12 7
CL 150 4 x M12 upon request
10 3/8“1)
CL 300 4 x M12 upon request
40 4 x M12 7
CL 150 4 x M12 upon request
15 1/2“
CL 300 4 x M12 upon request
40 4 x M12 11
CL 150 4 x M12 upon request
20 3/4“
CL 300 4 x M16 upon request
40 4 x M12 15
CL 150 4 x M12 upon request
25 1“
CL 300 4 x M16 upon request
40 4 x M16 26
CL 150 4 x M12 upon request
32 1 1/4“
CL 300 4 x M20 upon request
40 4 x M16 33
CL 150 4 x M12 upon request
40 1 1/2“
CL 300 4 x M20 upon request
40 4 x M16 46
CL 150 4 x M16 upon request
50 2
CL 300 8 x M16 upon request
16 8 x M16 30
65 2 1/2“
CL 150 4 x M16 upon request
16 8 x M16 40
80 3
CL 150 4 x M16 upon request
16 8 x M20 67
100 4
CL 150 8 x M16 upon request
1) Connection flange DIN EN1092-1 = DN10 (3/8"), connection flange ASME = DN15 (1/2")
3.2.3 Variable process connections (HygienicMaster)
Meter size DN Max. tightening torque
mm inch Nm
3 ... 10 3/8“ 8
15 1/2“ 10
20 3/4“ 21
25 1 31
32 1 1/4“ 60
40 1 1/2“ 80
50 2 5
65 2 1/2“ 5
80 3 15
100 4 14

Installation
14 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
3.3 Information on 3A conformity
The device may not be installed vertically with the terminal box or transmitter housing pointing
downward.
Fig. 5
The "bracket mounting" option no longer applies.
Fig. 6
1 Bracket
Please ensure that the leakage hole of the process connection is located at the deepest point of
the installed device.
1
G00169
Fig. 7
1 Leakage hole

Installation
CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster EN - 15
Change from one to two colu mns
3.4 Installation Requirements
The device measures the flowrate in both directions. The factory
default is forward flow, as shown inFig. 8.
Fig. 8
The following items must be observed:
3.4.1 Electrode axis
Electrode axis (1) should be horizontal if at all possible or no more
that 45° from horizontal.
G00041
max. 45°
1
Fig. 9
3.4.2 In- and outlet pipe sections
Straight inlet section Straight outlet section
≥3 x DN ≥2 x DN
DN = Flowmeter sensor size
• Do not install fittings, manifolds, valves etc. directly in front of the
meter tube (1).
• Butterfly valves must be installed so that the valve plate does not
extend into the flowmeter sensor.
• Valves or other turn-off components should be installed in the
outlet pipe section (2).
• For compliance with the measuring accuracy, observe the inlet
and outlet pipe sections.
G00037
12
3xDN 2xDN
Fig. 10
3.4.3 Vertical connections
• Vertical installation for measurement of abrasive fluids, flow
preferably from below to above.
Fig. 11
3.4.4 Horizontal connections
• Meter tube must always be completely full.
• Provide for a slight incline of the connection for degassing.
G00038
3°
Fig. 12
3.4.5 Free inlet or outlet
• Do not install the flowmeter at the highest point or in the draining-
off side of the pipeline, flowmeter runs empty, air bubbles can
form (1).
• Provide for a siphon fluid intake for free inlets or outlets so that
the pipeline is always full (2).
G00040
1
2
Fig. 13
3.4.6 Strongly contaminated fluids
• For strongly contaminated fluids, a bypass connection according
to the figure is recommended so that operation of the system can
continue to run without interruption the during the mechanical
cleaning.
G00042
Fig. 14

Installation
16 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
3.4.7 Installation in the vicinity of pumps
• For flowmeter primaries which are to be installed in the vicinity of
pumps or other vibration generating equipment, the utilization of
mechanical snubbers is advantageous.
Fig. 15
3.4.8 Installing the high temperature design
The high temperature design allows for complete thermal insulation
of the sensor. The pipeline and sensor must be insulated after
installing the unit according to the following illustration.
Fig. 16
1 Insulation
3.4.9 Installation in pipelines with larger nominal
diameters
Determine the resulting pressure loss when using reduction pieces
(1):
1. Calculate the diameter ratio d/D.
2. Determine the flow velocity based on the flow range nomograph
(Fig. 18).
3. Read the pressure drop on the Y-axis in Fig. 18.
Fig. 17
1
d
V
Δp
D
= Flange transition piece
= Inside diameter of the flowmeter
= flow velocity [m/s]
= pressure loss [mbar]
= Inside diameter of the pipeline
Nomograph for pressure drop calculations
For flange transition piece with α/2 = 8°
Fig. 18
Change from one to two colu mns

Installation
CI/FEP300/FEH300-EN ProcessMaster / HygienicMaster EN - 17
3.5 Ground
3.5.1 General information on ground connections
Observe the following items when grounding the device:
• For plastic pipes or pipes with insulating lining, the ground is provided by the grounding plate
or grounding electrodes.
• When stray potentials are present, install a grounding plate at the front and back of the
flowmeter.
• For measurement-related reasons, the potentials in the station ground and in the pipeline
should be identical.
• An additional ground on the terminals is not required.
Important
If the flowmeter is installed in plastic or earthenware pipelines, or in pipelines with an
insulating lining, transient current may flow through the grounding electrode in special cases.
In the long term, this may destroy the sensor, since the ground electrode will in turn degrade
electrochemically. In these special cases, the connection to the ground must be performed
using grounding plates.
3.5.2 Metal pipe with fixed flanges
Use a copper wire (at least 2.5 mm² (14 AWG)) to establish the ground connection between the
sensor (1), the pipeline flanges and an appropriate grounding point.
Flange design Wafer type design
Fig. 19

Installation
18 - EN ProcessMaster / HygienicMaster CI/FEP300/FEH300-EN
3.5.3 Metal pipe with loose flanges
1. Solder the threaded nuts M6 (1) to the pipeline and connect the ground as shown in the
illustration.
2. Use a copper wire (at least 2.5 mm² (14 AWG)) to establish the ground connection between
the sensor (2) and an appropriate grounding point.
Flange design Wafer type design
Fig. 20
3.5.4 Non-metallic pipes or pipes with insulating liner
For plastic pipes or pipes with insulating lining, the ground is provided by the grounding plate as
shown in the figure below or via grounding electrodes that must be installed in the device
(option). If grounding electrodes are used, the grounding plate is not necessary.
1. Install the flowmeter sensor with grounding plate (3) in the pipeline.
2. Connect the terminal plug (2) for the grounding plate (3) and ground connection (1) on the
flowmeter sensor with the grounding strap.
3. Use a copper wire (at least 2.5 mm² (14 AWG)) to connect between the ground connection
(1) and an appropriate grounding point.
Flange design Wafer type design
Fig. 21