ABB FEX300 Operation instructions

SM/FEX300/FEX500/FM/CSA-EN ProcessMaster, HygienicMaste
r
FEX300, FEX500
FM / cFM Div. 1, Div. 2
Safety information for electrical
equipment for potentially explosive areas
in accordance with Factory Mutual
Standards and Canadian Standards
Association
Electromagnetic Flowmeter

SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 1
Neu
Electromagnetic Flowmeter
ProcessMaster, HygienicMaster
FEX300, FEX500
Safety information for electrical equipment for potentially explosive areas in accordance with
Factory Mutual Standards and Canadian Standards Association - EN
SM/FEX300/FEX500/FM/CSA-EN
08.2017
Rev. E
Translation of the original instruction
Manufacturer:
ABB Automation Products GmbH
Measurement & Analytics
Dransfelder Straße 2
D-37079 Göttingen
Germany
Tel.: [phone]
Fax: [phone]
Customer service center
Phone: [phone]
Fax: [phone]-29031
[email protected]
ABB Inc.
Measurement & Analytics
125 E. County Line Road
Warminster, PA 18974
USA
Tel.: [phone]
Fax: [phone]
ABB Engineering (Shanghai) Ltd.
Measurement & Analytics
No. 4528, Kangxin Highway,
Pudong New District,
Shanghai, 201319, P.R. China
Tel.: [phone]
Fax: [phone]
Mail:
[email protected]
© Copyright 2017 by ABB Automation Products GmbH
Subject to changes without notice
This document is protected by copyright. It assists the user in safe and efficient operation of the device. The contents of this
document, whether whole or in part, may not be copied or reproduced without prior approval by the copyright holder.
Contents

Contents
2 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
IMPORTANT (NOTE)
This document forms an integral part of the following manuals:
• Operating Instruction OI/FEX300/FEX500
• Commissioning instruction CI/FEX300/FEX500
1Certificates ...........................................................................................................................................................4
2Safety....................................................................................................................................................................5
2.1Operator liability .............................................................................................................................................5
2.2Technical limit values .....................................................................................................................................5
2.3Safety information for electrical installation....................................................................................................5
2.4Symbols and warnings ...................................................................................................................................5
3Device designs ....................................................................................................................................................6
3.1Model with compact design............................................................................................................................6
3.1.1Div. 1 .......................................................................................................................................................6
3.1.2Div. 2 .......................................................................................................................................................7
3.2Model with remount mount design .................................................................................................................7
3.2.1Div. 1 .......................................................................................................................................................8
3.2.2Div.2 ........................................................................................................................................................9
3.3Overview: The fast track to the device data .................................................................................................10
3.4Name plate ...................................................................................................................................................11
3.4.1Name plate for model with integral mount design (dual-compartment housing) ..................................11
3.4.2Name plate for model with integral mount design (single-compartment housing)................................12
3.4.3Name plate for model with remote mount design .................................................................................13
3.4.4Name plate for transmitter.....................................................................................................................14
4Mounting ............................................................................................................................................................16
4.1Information about opening and closing the housing ....................................................................................16
4.2Rotating the transmitter housing ..................................................................................................................17
4.3Cable entries ................................................................................................................................................17
4.4High temperature version .............................................................................................................................18
4.5Protection class IP 68...................................................................................................................................18
4.6Information about using the device in areas with combustible dust.............................................................18
4.6.1Maximum Allowable Surface Temperature ...........................................................................................18
4.6.2Minimum signal cable length.................................................................................................................18
4.7Electrical connection ....................................................................................................................................19
4.8Process sealing (Canada)............................................................................................................................20
5Ex relevant specifications for operation in Div. 1 ..........................................................................................21
5.1Electrical connection ....................................................................................................................................21
5.1.1Flowmeter sensor and transmitter in Div. 1 ..........................................................................................21
5.1.2Flowmeter sensor in Div. 1 and transmitter in Div. 2 or outside the hazardous area ...........................22
5.2Electrical data for operation in zones 1, 21, 22 / Div. 1................................................................................23
5.2.1Devices with HART protocol .................................................................................................................23
5.2.2Devices with PROFIBUS PA or FOUNDATION fieldbus ......................................................................24
5.3Temperature data for operation in Zone 1 / Div. 1 .......................................................................................25

Contents
SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 3
6Ex relevant specifications for operation in Div. 2 ..........................................................................................29
6.1Electrical connection ....................................................................................................................................29
6.1.1Flowmeter sensor and transmitter in Div. 2, or transmitter outside the hazardous area ......................29
6.2Electrical data for operation in zones 2, 21, 22 / Div. 2................................................................................30
6.2.1Devices with HART protocol .................................................................................................................30
6.2.2Devices with PROFIBUS PA or FOUNDATION fieldbus ......................................................................30
6.3Temperature data for operation in Zone 2 / Div. 2 .......................................................................................30
7Commissioning..................................................................................................................................................34
7.1Preliminary checks prior to start-up..............................................................................................................34
7.2Notes on combining the FEP325 flowmeter sensor with the FET325 transmitter or the FEP525 flowmeter
sensor with the FET525 transmitter .............................................................................................................34
7.3Special features of the device design for operation in Div. 1.......................................................................35
7.3.1Configuring the current output ..............................................................................................................35
7.3.2Configuration of the digital outputs .......................................................................................................35
7.4Changing the type of protection ...................................................................................................................36
8Maintenance.......................................................................................................................................................37
8.1General information......................................................................................................................................37
8.2Replacing the transmitter or sensor .............................................................................................................38
8.2.1Transmitter ............................................................................................................................................38
8.2.2Flowmeter sensor..................................................................................................................................39
9Appendix ............................................................................................................................................................40
9.1Approvals and certifications .........................................................................................................................40
9.2Installation drawing HART IDM-10-A0258 ...................................................................................................41
9.3Installation drawing PROFIBUS PA / FOUNDATION Fieldbus IDM-10-A0266 ...........................................43

Certificates
4 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
1 Certificates
These safety instructions related to explosion protection are valid in conjunction with the
following certificates:
Validity area Certificates
FM for USA File 3034391
FM for Canada File 3034391C

Safety
SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 5
2 Safety
2.1 Operator liability
The operators must strictly observe the applicable national regulations with regards to
installation, function tests, repairs, and maintenance of electrical devices (e.g., NEC, CEC).
2.2 Technical limit values
Particular attention must be paid to the limit values listed in the sections relating to "ex relevant
specifications":
• The data for the signal inputs and outputs of the transmitter
• The permissible temperature data and limit values
2.3 Safety information for electrical installation
Never attempt electrical connection unless the power supply is switched off.
Ground the flowmeter sensor and transmitter housing. Make sure there is no risk of explosion.
2.4 Symbols and warnings
DANGER – <Serious damage to health / risk to life>
This symbol in conjunction with the signal word "Danger" indicates an imminent danger.
Failure to observe this safety information will result in death or severe injury.
DANGER – <Serious damage to health / risk to life>
This symbol in conjunction with the signal word "Danger" indicates an imminent electrical
hazard. Failure to observe this safety information will result in death or severe injury.
WARNING – <Bodily injury>
This symbol in conjunction with the signal word “Warning“ indicates a possibly dangerous
situation. Failure to observe this safety information may result in death or severe injury.
WARNING – <Bodily injury>
This symbol in conjunction with the signal word "Warning" indicates a potential electrical
hazard. Failure to observe this safety information may result in death or severe injury.
CAUTION – <Minor injury>
This symbol in conjunction with the signal word “Caution“ indicates a possibly dangerous
situation. Failure to observe this safety information may result in minor or moderate injury.
This may also be used for property damage warnings.
NOTICE – <Property damage>!
The symbol indicates a potentially damaging situation.
Failure to observe this safety information may result in damage to or destruction of the product
and/or other system components.
IMPORTANT (NOTE)
This symbol indicates operator tips, particularly useful information, or important information
about the product or its further uses. It does not indicate a dangerous or damaging situation.

Device designs
6 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
3 Device designs
The devices are available in two series. ProcessMaster 300 / HygienicMaster 300 with basic
functions and ProcessMaster 500 / HygienicMaster 500 with extended functions and options.
The series is identified by the fourth digit of the model number:
Model number / device series
FEP3... ProcessMaster 300 FEP5... ProcessMaster 500
FEH3... HygienicMaster 300 FEH5... HygienicMaster 500
Devices suitable for use in potentially explosive atmospheres feature the corresponding Ex
mark on their name plates.
The model for use in Div. 1 is identified by the character “R”, the model for use in 2 is identified
by the character “P” in the model number.
3.1 Model with compact design
The transmitter and the flowmeter sensor form a single mechanical entity.
IMPORTANT (NOTE)
For further information about the instruments' explosion protection approval please refer to the
Ex test certificates (available on the product CD or under www.abb.com/flow).
3.1.1 Div. 1
ProcessMaster 300 / ProcessMaster 500 HygienicMaster 300 / HygienicMaster 500
FEP315.....R.... / FEP515.....R.... FEH315.....R.... / FEH515.....R....
Div. 1 Div. 1
G00886
G00883
USA USA
FM approved FM approved
XP: CL I / DIV 1 / GP ABCD XP: CL I/ DIV 1/ GP ABCD
NI: CL III / DIV 1 NI: CL III/ DIV 1
DIP: CL II / DIV 1 / GP EFG DIP: CL II/ DIV 1/ GP EFG
DN 3-300:
CL I, ZN 1 AEx d e ia ma IIC T6 … T2
>DN 300:
CL I, ZN 1 AEx d e ia IIC T6 … T2
DN 3-2000:
Zone 21 Ex tD iaD A21 IP6X T70°C … Tmedium
CL I, ZN 1 AEx d e ia ma IIC T6…T2
Zone 21 Ex tD iaD A21 IP6X T70°C … Tmedium
Canada Canada
cFM approved cFM approved
XP: CL I/ DIV 1/ GP ABCD XP: CL I/ DIV 1/ GP ABCD
NI: CL III / DIV 1
DN 3-300: Ex d e ia ma IIC T6 … T2
>DN 300 : Ex d e ia IIC T6 … T2
NI: CL III/ DIV 1
Ex d e ia ma IIC T6 … T2
DIP: CL II / DIV 1 / GP EFG DIP: CL II/ DIV 1/ GP EFG
Fig. 1

Device designs
SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 7
3.1.2 Div. 2
ProcessMaster 300 / ProcessMaster 500 HygienicMaster 300 / HygienicMaster 500
FEP315.....P.... / FEP515.....P.... FEH315.....P.... / FEH515.....P....
Div. 2 Div. 2
USA USA
FM approved, File 3034391 FM approved, File 3034391
NI: CL I, II / DIV2 / GP ABCDFG / T4 … T3 NI: CL I, II / DIV2 / GP ABCDFG / T4 … T3
CL III / DIV1, 2 / T4 … T3 CL III / DIV1, 2 / T4 … T3
CL I ZN2 AEx nA nC IIC T4 ... T3 CL I ZN2 AEx nA nC IIC T4 ... T3
DIP: CL II, III / DIV1 / GP EFG / T 70 °C … Tmedium DIP: CL II, III / DIV1 / GP EFG / T 70 °C … Tmedium
AEx tD 21 T70 °C ... Tmedium AEx tD 21 T70 °C ... Tmedium
Canada Canada
cFM approved, File 3034391C cFM approved, File 3034391C
NI: CL I, II / DIV2 / GP ABCDFG / T4 … T3 NI: CL I, II / DIV2 / GP ABCDFG / T4 … T3
CL III / DIV1, 2 / T4 … T3 CL III / DIV1, 2/ T4 … T3
CL I ZN2 Ex nA nC IIC T4 ... T3 CL I ZN2 Ex nA nC IIC T4 ... T3
DIP: CL II, III / DIV1 / GP EFG / T70 °C … Tmedium DIP: CL II. III / DIV1 / GP EFG / T70 °C … Tmedium
DIP A21 TAT70 °C ... Tmedium DIP A21 TA T70 °C ... Tmedium
1) Single-compartment housing
2) Dual-compartment housing
3.2 Model with remount mount design
The transmitter is mounted in a separate location from the flowmeter sensor. The electrical
connection between the transmitter and flowmeter sensor may only be established using the
signal cable supplied.
Signal cable
Application D173D031U01 D173D027U01
Non-Ex. (< DN15) 
Non-Ex. (≥DN15) 
Zone 2 / Div. 2 (< DN15) 
Zone 2 / Div. 2 (≥DN15) 
Zone 1 / Div. 1
(all nominal diameter) 
Application not permissible
Application permissible
Standard on delivery
IMPORTANT (NOTE)
For further information about the instruments' explosion protection approval please refer to the
Ex test certificates (available on the product CD or under www.abb.com/flow).
G01082-01
1) 2)
G01330
1) 2)

Device designs
8 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
3.2.1 Div. 1
DANGER - Risk of explosion caused by incorrect transmitter installation
The FET321 / FET521 transmitter is not approved for hazardous areas.
The FET321 / FET521 transmitter must not be installed or operated in potentially explosive
atmospheres.
If the FEP325 flowmeter sensor is combined with the FET321 or FET325 transmitter (Zone 2),
the maximum permissible signal cable length is 50 m (164 ft) with a minimum conductivity of
5 µS/cm, without a pre-amplifier. The same is valid for the FEP525 flowmeter sensor with
FET521 or FET525 (Zone 2) transmitter.
If the FEP325 flowmeter sensor is combined with the FET325 transmitter (Zone 1), 10 m
(32.8 ft) signal cables are permanently connected to the transmitter. The same is valid for the
FEP525 flowmeter sensor with FET525 (Zone 1) transmitter.
Flowmeter sensor
ProcessMaster 300 / ProcessMaster 500
FEP325.....R.... / FEP325.....R....
in hazardous area, Div. 1
G00862
USA Canada
FM approved cFM approved
XP: CL I / DIV 1 / GP ABCD XP: CL I/ DIV 1/ GP ABCD
NI: CL III / DIV 1 NI: CL III / DIV 1
DN 3-300: Ex d e ia ma IIC T6 … T2
>DN 300 : Ex d e ia IIC T6 … T2
DIP: CL II / DIV 1 / GP EFG
DN 3-300: CL I, ZN 1 AEx d e ia ma IIC T6 … T2
>DN 300: CL I, ZN 1 AEx d e ia IIC T6 … T2
DN 3-2000: Zone 21 Ex tD iaD A21 IP6X
T70°C … Tmedium
DIP: CL II / DIV 1 / GP EFG
Transmitter
FET325.....R.... / FET525.....R.... FET325.....P.... / FET525.....P.... FET321 / FET521
in hazardous area, Div. 1 in hazardous area, Div. 2 Outside the Ex area
G00863
USA USA No Ex approval
FM approved FM approved
XP: CL I / DIV 1/ GP ABCD NI: CL I, II / DIV2 / GP ABCDFG / T4
IS: CL II/ DIV 1/ GP EFG CL III / DIV1, 2 / T4
CL I, II,III ZN 2 AEx nA nC T4
NI: CL III/ DIV 1
CL I, ZN 1 AEx d e [ia] IIC T6
Zone21 AEx tD [iaD] A21 IP6X T70°C
DIP: CL II, III / DIV1 / GP EFG / T70°C
Canada Canada
cFM approved cFM approved
XP: CL I/ DIV 1/ GP ABCD NI: CL I, II/ DIV 2/ GP ABCDFG/ T4
IS: CL II/ DIV 1/ GP EFG CL III/ DIV 1, 2/ T4
NI: CL III/ DIV 1
Ex d e [ia] IIC T6 Gb
Ex nA nC T4
DIP: CL II, III / DIV1 / GP EFG / T70°C
DIP A21 TA 70°C
1) Single-compartment housing
2) Dual-compartment housing
G01331
1) 2)
G01331
1) 2)

Device designs
SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 9
3.2.2 Div.2
Risk of explosion caused by incorrect transmitter installation
The FET321 / FET521 transmitter is not approved for hazardous areas.
The FET321 / FET521 transmitter must not be installed or operated in potentially explosive
atmospheres.
Without a pre-amplifier, the maximum permissible signal cable length is 50 m (164 ft) with a
minimum conductivity of 5 µS/cm. With a pre-amplifier, the maximum permissible signal cable
length is 200 m (656 ft).
Flowmeter sensor
ProcessMaster 300 / ProcessMaster 500 HygienicMaster 300 / HygienicMaster 500
FEP325.....P.... / FEP525.....P.... FEH325.....P.... / FEH525.....P....
in hazardous area, Div. 2 in hazardous area, Div. 2
USA USA
NI: CL I, II / DIV2 / GP ABCDFG / T4 … T3 NI: CL I, II / DIV2 / GP ABCDFG / T6 … T3
CL III / DIV1, 2 / T4 … T3 CL III / DIV1, 2 / T6 … T3
CL I ZN2 AEx nA nC IIC T4 ... T3 CL I ZN2 AEx nA nC T4 ... T3
DIP: CL II, III / DIV1 / GP EFG / T 70 °C … Tmedium DIP: CL II, III / DIV1 / GP EFG / T85°C … Tmedium
AEx tD 21 T70 °C ... Tmedium AEx tD 21 T70 °C ... Tmedium
Canada Canada
NI: CL I, II / DIV2 / GP ABCDFG / T4 … T3 NI: CL I, II / DIV2 / GP ABCDFG / T6 … T3
CL III / DIV1, 2 / T4 … T3 CL III / DIV1, 2/ T6…T3
CL I ZN2 Ex nA nC IIC T4 ... T3 CL I ZN2 Ex nA nC T4 ... T3
DIP: CL II, III / DIV1 / GP EFG / T70 °C … Tmedium DIP: CL II, III / DIV1 / GP EFG / T85°C … Tmedium
DIP A21 TA T70 °C ... Tmedium DIP A21 TA85 °C ... Tmedium
Transmitter
(The flowmeter sensors illustrated above can be combined with one of the two transmitters described below)
FET325.....P.... / FET525.....P.... FET321 / FET521
in hazardous area, Div. 2 Outside the Ex area
USA No Ex approval!
NI: CL I, II / DIV2 / GP ABCDFG / T4
CL III / DIV1, 2 / T4
CL I, II,III ZN 2 AEx nA nC T4
DIP: CL II, III / DIV1 / GP EFG / T70°C
Canada
NI: CL I, II/ DIV 2/ GP ABCDFG/ T4
CL III/ DIV 1, 2/ T4
Ex nA nC T4
DIP: CL II, III / DIV1 / GP EFG / T70°C
DIP A21 TA 70°C
G01331
1) 2)
G01331
1) 2)

Device designs
10 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
3.3 Overview: The fast track to the device data
Model Ex certificate Operation in
zone
Electrical
connection Ex data
Chapter
ProcessMaster 300 /
ProcessMaster 500
FEP315 or FEP515 FM File 3034391 Div 1 5.1.1 5.2 and 5.3
CSA File 3034391C Div 2 6.1.1 6.2 and 6.3
FEP325 + FET325 or
FEP525 + FET525
FM File 3034391 Div 1 5.1.2 5.2 and 5.3
CSA File 3034391C Div 2 6.1.1 6.2 and 6.3
FEP325 + FET321 or
FEP525 + FET521
FM File 3034391 Div 1 5.1.2 5.2 and 5.3
CSA File 3034391C Div 2 6.1.1 6.2 and 6.3
HygienicMaster 300 /
HygienicMaster 500
FEH315 or FEH515 FM File 3034391 Div 1 5.1.1 5.2 and 5.3
CSA File 3034391C Div 2 6.1.1 6.2 and 6.3
FEH325 + FET325 or
FEH525 + FET525
FM File 3034391 Div 1 5.1.2 5.2 and 5.3
CSA File 3034391C Div 2 6.1.1 6.2 and 6.3
FEH325 + FET321 or
FEH525 + FET521
FM File 3034391 Div 1 5.1.2 5.2 and 5.3
CSA File 3034391C Div 2 6.1.1 6.2 and 6.3
IMPORTANT (NOTE)
All documentation, declarations of conformity and certificates are available in ABB's download
area.
www.abb.com/flow

Device designs
SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 11
3.4 Name plate
3.4.1 Name plate for model with integral mount design (dual-compartment housing)
G00629
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Fig.
1 Model number (for more detailed information about
the technical design, refer to the data sheet or the
order confirmation)
2 Order no.
3 Meter size and nominal pressure rating
4 Material: Flange/lining/electrode
5 Tmed = max. permissible fluid temperature
T
amb = max. permissible ambient temperature
6 Calibration value Qmax DN
7 Calibration value Ss (span)
Calibration value Sz (zero point)
8 Communications protocol of transmitter
9Excitation frequency of sensor coils
10 Software version
11Year of manufacture
12CE mark
13Serial number for identification by the manufacturer
14 Client-specific TAG number (if specified)
15 Protection type according to EN 60529
16Supplementary information: EE = grounding
electrodes, TFE = partial filling electrode
17

Accuracy to which the unit was calibrated (e.g., 0.2%
of rate)
18Version level (xx.xx.xx)
19 Label indicating whether the unit is subject to the
Pressure Equipment Directive (PED).
Information on the relevant fluid group.
Fluid group 1 = hazardous fluids, liquid, gaseous.
(Pressure Equipment Directive = PED).
If the pressure equipment is not subject to the
Pressure Equipment Directive 2014/68/EU, it is
classified in accordance with SEP (= sound
engineering practice) as per Art. 3 Para. 3 of the PED.
If no such information is present, it means that the
device does not claim to comply with the requirements
of the Pressure Equipment Directive 2014/68/EU.
Water supplies and connected equipment accessories
are classed as an exception in accordance with
guideline 1/16 of Art. 1 Para. 3.2 of the Pressure
Equipment Directive.
20Ex mark according to FM (example)
21Ex mark according to cFM (example)
IMPORTANT (NOTE)
Meters with 3A approval are labeled with an additional plate.

Device designs
12 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
3.4.2 Name plate for model with integral mount design (single-compartment housing)
Fig. 2
„A“ Name plate
1 Model number (for more detailed information about
the technical design, refer to the data sheet or the
order confirmation)
2 Order no.
3 Meter size and nominal pressure rating
4 Tmed = maximum permissible fluid temperature
Tamb = maximum permissible ambient temperature
5 Protection type according to EN 60529
6 Calibration value Qmax DN
7 Communications protocol of transmitter
8 Software version
9 CE mark
10 Client-specific TAG number (if specified)
11 Material: Flange/lining/electrode
12 Excitation frequency of sensor coils
13 Supplementary information: EE = grounding
electrodes, TFE = partial filling electrode
14 Calibration value Ss (span)
Calibration value Sz (zero point)
Accuracy to which the unit was calibrated
(e.g., 0.4% of rate)
15

Supply voltage
16 Year of manufacture
17 Label indicating whether the unit is subject to the
Pressure Equipment Directive (PED).
Information on the relevant fluid group.
Fluid group 1 = hazardous fluids, liquid, gaseous.
(Pressure Equipment Directive = PED).
If the pressure equipment is not subject to the
Pressure Equipment Directive 2014/68/EU, it is
classified in accordance with SEP (= sound
engineering practice) as per Art. 3 Para. 3 of the
PED.
If no such information is present, it means that the
device does not claim to comply with the
requirements of the Pressure Equipment Directive
2014/68/EU. Water supplies and connected
equipment accessories are classed as an exception
in accordance with guideline 1/16 of Art. 1 Para. 3.2
of the Pressure Equipment Directive.
„B“ Ex mark according to FM and cFM (example) „C“ Safety mark
IMPORTANT (NOTE)
Meters with 3A approval are labeled with an additional plate.
G01333
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
„A“
„B“
„C“
„A“
„B“
„C“

Device designs
SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 13
3.4.3 Name plate for model with remote mount design
G00630
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
FEP325
Fig. 3: Remote mount design
1 Model number (for more detailed information about
the technical design, refer to the data sheet or the
order confirmation)
2 Order no.
3 Meter size and nominal pressure rating
4 Material: Flange/lining/electrode
5 Client-specific TAG number (if specified)
6 Tmed = max. permissible fluid temperature
T
amb = max. permissible ambient temperature
7 Protection type according to EN 60529
8 Calibration value Qmax DN
9 Calibration value Ss (span)
Calibration value Sz (zero point)
10 Year of manufacture
11CE mark
12Serial number for identification by the manufacturer
13Supplementary information: EE = grounding
electrodes, TFE = partial filling electrode
14Accuracy to which the unit was calibrated
(e.g., 0.2% of rate)
15

Excitation frequency of sensor coils
16Label indicating whether the unit is subject to the
Pressure Equipment Directive (PED).
Information on the relevant fluid group.
Fluid group 1 = hazardous fluids, liquid, gaseous.
(Pressure Equipment Directive = PED).
If the pressure equipment is not subject to the
Pressure Equipment Directive 2014/68/EU, it is
classified in accordance with SEP (= sound
engineering practice) as per Art. 3 Para. 3 of the PED.
If no such information is present, it means that the
device does not claim to comply with the requirements
of the Pressure Equipment Directive 2014/68/EU.
Water supplies and connected equipment accessories
are classed as an exception in accordance with
guideline 1/16 of Art. 1 Para. 3.2 of the Pressure
Equipment Directive.
17Ex mark according to FM (example)
18Ex mark according to cFM (example)
IMPORTANT (NOTE)
Meters with 3A approval are labeled with an additional plate.

Device designs
14 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
3.4.4 Name plate for transmitter
G00864
1
2
3
4
5
6
7
8
9
10
11
Fig. 4: External transmitter (remote mount design), model: FET325 / FET525 for Div. 1
1 Model number (for more detailed information
about the technical design, refer to the data
sheet or the order confirmation)
2 Order no.
3 Client-specific TAG number (if specified)
4 Tamb = max. permissible ambient temperature
5 Protection type according to EN 60529
6Supply voltage
7Communications protocol of transmitter
8 Software version
9Version level (xx.xx.xx)
10Ex mark according to FM (example)
11Ex mark according to cFM (example)
Fig. 5: External transmitter (remote mount design), models FET325 / FET525 for Zone 2
1 Model number (for more detailed information
about the technical design, refer to the data
sheet or the order confirmation)
2 Order no.
3 Client-specific TAG number (if specified)
4 Tamb = max. permissible ambient temperature
5 Protection type according to EN 60529
6Supply voltage
7Communications protocol of transmitter
8 Software version
9Version level (xx.xx.xx)
10Ex mark according to FM (example)
11Ex mark according to cFM (example)
G00632
1
2
3
4
5
6
7
8
9
10
11

Device designs
SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 15
Fig. 6: External transmitter, model FET325 / FET525 for Zone 2 (single-compartment housing)
„A“ Name plate
1 Model number (for more detailed information about
the technical design, refer to the data sheet or the
order confirmation)
2 Order no.
3Supply voltage
4 Tamb = maximum permissible ambient temperature
5Communications protocol of transmitter
6CE mark
7 Client-specific TAG number (if specified)
8 Protection type according to EN 60529
9 Software version
„B“ Ex mark according to FM and cFM (example) „C“ Safety mark
G01334
1
2
3
4
5
6
7
8
9
„A“
„B“
„C“
„A“
„B“
„C“

Mounting
16 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
4 Mounting
4.1 Information about opening and closing the housing
Fig. 7: Dual compartment housing - Cover safety device
Fig. 8: Single compartment housing
DANGER - Risk of explosion!
When the housing cover is open, the explosion protection is suspended.
Before opening the housing switch off the power to all connection lines and wait at least 20
minutes.
Dual compartment housing (Fig. 7)
Release the cover safety device by screwing in the Allen screw (1).
Before closing the housing make sure that the gasket (O-ring) for the housing cover is seated
correctly.
After closing the housing, lock the housing cover by unscrewing the Allen screw (1) to prevent
opening the cover accidentally.
Single compartment housing (Fig. 8)
Unscrew the Phillips-head screws (2) and remove the housing cover.
G00758
11
G01332
2

Mounting
SM/FEX300/FEX500/FM/CSA-EN FEX300, FEX500 EN - 17
4.2 Rotating the transmitter housing
Dual compartment housing Single compartment housing
Fig. 9
1.Loosen the Allen screws (3) on the front and back sides, but do not remove entirely.
2.Loosen screws (2) and rotate the transmitter housing (1) by 90° to the left or right.
3.Retighten screws (2) and Allen screws (3).
DANGER - Risk of explosion!
When the screws for the transmitter housing are loosened, the explosion protection is
suspended.
Tighten all screws (2, 3) for the transmitter housing prior to commissioning.
4.3 Cable entries
Dual compartment housing Single compartment housing
Fig. 10
The devices are delivered with 1/2" NPT or PF 1/2" threads with protective shipping plugs (1).
Unused cable entries must be closed prior to commissioning using either approved threaded
pipe connections or cable glands according to national regulations (NEC, CEC).
Make sure that the threaded pipe connections, cable glands and possibly plugs are installed
properly and sealed.
If the device is to be operated in areas with combustible dusts, a threaded pipe connection or
cable gland with suitable approval must be used.
G00761-01
1
3
2
3
3
G00759-01
1
1
1
1

Mounting
18 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
4.4 High temperature version
The high temperature design allows for complete thermal insulation of the sensor, up to the
maximum illustrated device height.
The pipeline and sensor must be insulated after installing the unit according to the following
illustration.
The thermal resistance of the insulation must not exceed λ= 0.036 W/(mK); if it does, the
thickness of the insulation must be reduced accordingly.
Fig. 11
1Insulation
The surface temperature depends on the fluid temperature.
Model name Maximum surface temperature
FEP325 / FEH325
FEP525 / FEH525 T 85 °C (185 °F) ... Tmedium
FEP315 / FEH315
FEP515 / FEH515 T 70 °C (158 °F) ... Tmedium
4.5 Protection class IP 68
For installation, see the commissioning instruction.
4.6 Information about using the device in areas with combustible dust
The device with dual-compartment transmitter housing is approved for use in potentially
explosive areas (gas and dust).
The Ex certification is provided on the name plate.
DANGER - Risk of explosion!
The dust explosion protection is also provided by the housing.
Modifications to the housing are not allowed (e.g., removing or omitting parts).
4.6.1 Maximum Allowable Surface Temperature
Model name Maximum surface temperature
FEP325 / FEH325
FEP525 / FEH525 T 85 °C (185 °F) ... Tmedium
FEP315 / FEH315
FEP515 / FEH515 T 70 °C (158 °F) ... Tmedium
FET325 / FET525 T 70 °C (158 °F)
4.6.2 Minimum signal cable length
In potentially explosive atmospheres, the signal cable must measure least 5 m (16.40 ft).
G00654
1