ABB AquaMaster4 User manual

—
ABB MEASUREMENT & ANALYTICS | OPERATING INSTRUCTION | OI/FET400-EN REV. D
AquaMaster4
Electromagnetic flowmeter transmitter
The ideal flowmeter for potable
water distribution networks,
revenue metering and irrigation
applications
Measurement made easy
Introduction
AquaMaster4 is a high performance electromagnetic
flowmeter for the measurement of electrically-
conductive fluids and is normally supplied as a
factory-configured, calibrated system.
This publication provides end-user details for
AquaMaster4 integral and remote transmitters.
For more information
Further publications for AquaMaster4 are available
for free download from:
http://new.abb.com/products/measurement-
products
—
Harness the power
of electromagnetic
flowmeters

2AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
Contents
1 Health, safety and cybersecurity............. 4
Document symbols ................................ 4
Safety precautions ................................ 4
Cybersecurity ..................................... 4
Disclaimer....................................4
Communication protocol specific..............5
Improper use.......................................5
Potential safety hazard ............................ 6
AquaMaster4 transmitter – electrical ..........6
Safety standards .................................. 6
Battery hazard, handling, shipping and recycling/
disposal .......................................... 6
Waste Electrical and Electronic Equipment (WEEE) ...7
Product recycling and disposal (Europe only) ........7
End-of-life battery disposal ...................7
Information on ROHS Directive 2011/65/EU and
2015/863 ..........................................7
Product symbols ...................................7
2 Transmitter overview ........................8
3 Product identification labels .................9
Nameplate – FET41X/43X .......................... 9
Integral transmitter...........................9
Remote-mount transmitter....................9
Nameplate – FET45X...............................10
Integral transmitter..........................10
Remote Transmitter..........................10
4 Transport and storage ......................11
Inspection ........................................11
Transport .........................................11
Storing the flowmeter/transmitter .................11
Storage temperature......................... 11
5 Installation.................................12
Installation conditions – FET 410/430...............12
Installation conditions – FET 450 ...................14
Dimensions – FET410/430..........................16
Dimensions – FET450 ..............................17
Dimensions – Power supply unit for FET452 .........18
Antenna installation – FET45X ......................19
Connecting a remote antenna..................... 20
Installing the SIM card – FET45X ....................21
Grounding – FET410/430.......................... 22
Grounding – FET450 .............................. 23
Connections ..................................... 24
Power supply connections ........................ 24
Mains power supply (remote transmitter) .....24
Renewable energy supply ....................25
Battery power supply ........................26
Installing internal batteries – FET41X/43X .....27
Installing internal batteries – FET45X..........28
AquaMaster4 remote sensor connections ......... 29
Integral sensor connections ..................30
Input/Output connections ........................ 30
Input/Output connection socket .............30
Pulse outputs................................31
Alarm interface ..............................31
MODBUS connection ..............................31
Pressure transducer (optional) ...............32
Transmitter protective cover ...................... 32
Fitting the transmitter protective cover.......32
Near Field Communication (NFC).................. 33
NFC wall-mount coupler......................33
Fitting the configuration/reading interface and
connecting the NFC wall-mount coupler.......34
6 Commissioning ............................ 36
Safety instruction ................................ 36
Checks prior to commissioning ................... 36
MID/Anti-tamper seals. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Integral transmitter –
tamper-detection seals/locking screws.............37
Remote transmitter –
tamper-detection seals/locking screws.............37
Fitting the tamper-detection seal (FEX45X)........ 38
Establish cellular 4G communication .............. 38
Establish cellular NB-IoT communication ..........40
7 Operation ................................. 41
Start-up ..........................................41
Operating display .................................41
Factory-configuration/calibration................. 43
Security and password access ....................44
User account 1 to 3 – standard level privileges .44
Data transmission via cellular 4G (FEX45X)......... 45
Data transmission via cellular NB (FEX45X) ........46
Data report for FEX45X ...........................46
Summary report .............................46
Detail report.................................47
Velox user interface app ..........................48
Process values ................................... 49
Logger data .................................49
Configuration ....................................50
8 Diagnostics ............................... 56
Diagnostic error messages ....................... 56
Flow Measurement ..........................56
Totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Maintenance Operating Modes ...............56
Other errors/required action...................... 57
9 Legacy support.............................57
10 Audit logger............................... 58
Exporting the audit log ........................... 58
Clearing the audit log............................. 59
11 Firmware upgrade via NFC ................. 60

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 3
12 Communication Logger (FEX45X) ........... 60
13 Spares/Accessories.........................61
14 Recycling and disposal ......................61
Disassembly ......................................61
Erasing private data .............................. 62
Disposal ......................................... 62
15 Specification .............................. 63
FEX41X/43X ...................................... 63
FEX45X .......................................... 65
16 Appendix ................................. 68
Declarations of conformity........................ 68

4AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
1 Health, safety and cybersecurity
Document symbols
Symbols that appear in this document are explained below:
DANGER – SERIOUS DAMAGE TO HEALTH
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 potential electrical hazard.
Failure to observe this safety information will result in
death or severe injury.
CAUTION – MINOR INJURIES
This symbol in conjunction with the signal word
‘CAUTION’ indicates a potentially dangerous
situation. Failure to observe this safety information
may result in minor or moderate injury. The symbol
may also be used for property damage warnings.
IMPORTANT (NOTE)
This symbol indicates operator tips, particularly
useful information or important information about
the product or its further uses. The signal word
‘IMPORTANT (NOTE)’ does not indicate a dangerous
or harmful situation.
Safety precautions
Be sure to read, understand and follow the instructions
contained within this manual before and during use of the
equipment. Failure to do so could result in bodily harm or
damage to the equipment.
WARNING – BODILY INJURY
Installation, operation, maintenance and servicing
must be performed:
• by suitably trained personnel only
• in accordance with the information provided in this
manual
• in accordance with relevant national and local
regulations
Cybersecurity
IMPORTANT (NOTE)
This product is designed to be connected to and
communicate information and data via a digital
communication network interface. It is the user’s sole
responsibility to provide and continuously ensure a
secure connection between the product and the
user’s network or any other network (as the case may
be). Users shall establish and maintain any and all
appropriate measures (such as, but not limited to, the
installation of firewalls, the application of
authentication measures, the encryption of data, the
installation of anti-virus programs, etc.) to protect
the product, the network, its system and the
interface against any kind of security breaches,
unauthorized accesses, interference, intrusions,
leakages and/or theft of data or information.
Disclaimer
ABB and its affiliates are not liable for damages and/or losses
related to such security breaches, any unauthorized access,
interference, intrusion, leakage and/or theft of data or
information. ABB strives to maintain cybersecurity for its
products and services. By visiting the web page indicated
below, you will find notifications about newly found software
vulnerabilities and options to download the latest software. It
is recommended that you visit this web page regularly:
www.abb.com/cybersecurity

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 5
Communication protocol specific
The DOAP over NFC is a secure protocol defined by ABB
between the Velox Interface App and the transmitter, based
upon a secret device identification pin hand shake.
The Modbus protocol is an unsecured protocol, as such the
network security risk for the intended application should be
assessed to ensure that these protocols are suitable before
implementation.
The FTPS protocol runs on 4G variant of the transmitter is a
secure protocol based on TLS1.2 with digital certificate based
mutual authentication.
The LwM2M/CoAP over DTLS-PSK protocol runs on NB variant
of the transmitter is an unsecured protocol, as such the
intended application should be assessed to ensure that these
protocols are suitable before implementation.
Intended use
This flowmeter is intended for the following uses:
• To transmit fluid media with electrical conductivity.
• To measure and compute flow rate, flow velocity, volume
flow (forward, reverse and net) and pressure (option).
The flowmeter has been designed for use exclusively within the
technical limit values indicated on the identification plate and
in the data sheets.
In terms of the measuring medium, observe the following
points:
• Wetted parts such as measuring electrodes, liner,
grounding electrodes, grounding rings, protection flanges
must not be damaged because of the chemical and physical
characteristic of the measuring medium.
• The information on the name plate must be observed.
Improper use
The following are considered to be instances of improper use of
the flowmeter:
• For operating as a flexible adapter in piping, for example.
for compensating pipe offsets, pipe vibrations, pipe
expansions.
• For use as a climbing aid, e.g. for mounting purposes.
• For use as a support for external loads, e.g. as a support for
piping, etc.
• Material application, e.g. by painting over the name plate or
welding/soldering on parts.
• Material removal, e.g. by spot drilling the housing.

6AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
…1 Health, safety and cybersecurity
Potential safety hazard
AquaMaster4 transmitter – electrical
WARNING – BODILY INJURY
To ensure safe use when operating this equipment,
the following points must be observed:
• Up to 240 V AC may be present. Be sure to isolate
the supply before removing the terminal cover.
• Normal safety precautions must be taken to avoid
the possibility of an accident occurring when
operating in conditions of high pressure and/or
temperature.
Safety advice concerning the use of the equipment
described in this manual or any relevant Material
Safety Data Sheets (where applicable) can be
obtained from the Company, together with servicing
and spares information.
Safety standards
This product has been designed to satisfy the requirements of
IEC61010-1:2010 3rd edition ‘Safety Requirements for Electrical
Equipment for Measurement, Control and Laboratory Use’.
If the equipment is used in a manner NOT specified by the
Company, the protection provided by the equipment may be
impaired.
Battery hazard, handling, shipping and
recycling/disposal
WARNING – DANGER
AquaMaster4 is available with choice of power
options including lithium thionyl chloride battery
power. This warning covers the health and safety
issues regarding the product with such batteries. The
following warnings must be observed:
• Only batteries approved by ABB that comply with
the safety requirements of IEC60086-4 (see list
under …5 Installation on page 26 ), or contained
in the latest documentation from ABB may be
fitted. Fitting of other types is not recommended
by ABB.
• Do not use spiral wound lithium thionyl chloride
batteries. These pose a very high fire and explosion
hazard leading to a high risk for the users.
NEVER FIT THIS TYPE.
• Fitting of battery technologies other than lithium
thionyl chloride is NOT permitted.
• Some forms of D batteries do not conform the ‘D’
battery standard and may result in intermittent
connection and incorrect product operation.
• Incorrect use or operation of batteries may result in
potentially serious hazards to personnel.
• DO NOT expose batteries to fire or temperatures
above 85 °C (185 °F) and DO NOT crush or puncture
– they may leak, explode or rupture violently.
• DO NOT ship or transport the AquaMaster4
with lithium batteries fitted unless the following
instruction is complied with:
Transporting lithium batteries or product
containing lithium batteries:
• These are classified in ‘category UN3091 – Class 9’
of the UN list of hazardous materials. The transport
of such battery packs must conform to the
prevailing rules that are specific to the means of
transport used, both in terms of packing,
identification and accompanying documents. The
carrier must always be informed of the contents. A
warning label ‘Hazardous Label for Class 9 –
Miscellaneous Hazardous Goods’ must be attached
to the packing and remain visible on the outside of
the package.
• DO NOT dispose of depleted or partially depleted
batteries. They MUST be recycled in accordance
with local regulations (for example, sent to a
specialist recycling centre that handles such
batteries). The batteries must be packed, labeled
and transported in accordance with the regulations.
Ensure the battery cannot be short circuited.
• Recycling in Europe must be in accordance with
91/157/EEC and 93/86/EEC Directives.
• Damaged, leaking or overheated batteries require
urgent specialist handling and treatment.
Immediately evacuate all personnel from the area
and seek professional assistance.

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 7
Waste Electrical and Electronic Equipment
(WEEE)
WEEE EU Directive 2012/19/EU covers disposal and recycling of
electronic equipment at the end of life for reasons of
environmental protection.
For industrial installations, portable equipment is
included. This means that when the AquaMaster4
transmitter is used with a remote insertion sensor, it
is included in directive’s scope and has the WEEE
symbol (left) on its data label. Therefore, at the end of
life, contact the supplier for specialist waste
recycling. It must not be disposed of as municipal
waste.
Permanent Industrial installations are not designated within
this directive for recycling. At the point of supply the intended
use is not always known, so the WEEE symbol is included on all
remote forms of the AquaMaster4 transmitter.
Product recycling and disposal (Europe only)
Electrical equipment marked with this symbol may
not be disposed of in European public disposal
systems after 12 August 2005. To conform to
European local and national regulations (EU Directive
2012/19/EU), European electrical equipment users
can now return old or end-of-life equipment to the
manufacturer for disposal at no charge to the user.
ABB is committed to ensuring that the risk of any
environmental damage or pollution caused by any of
its products is minimized as far as possible.
IMPORTANT (NOTE)
For return for recycling, please contact the equipment
manufacturer or supplier for instructions on how to
return end-of-life equipment for proper disposal.
End-of-life battery disposal
The transmitter contains lithium batteries that must be
removed and disposed of responsibly in accordance with local
environmental regulations.
Information on ROHS Directive 2011/65/EU
and 2015/863
ABB, Industrial Automation, Measurement & Analytics, fully
supports the objectives of the ROHS directive. All in-scope
products placed on the market by ABB are compliant to
directives 2011/65/EU and 2015/863.
Product symbols
Symbols that may appear on this product are shown below:
Risk of electric shock.
This symbol, when noted on a product, indicates a
potential hazard which could cause serious personal
injury and/or death. The user should reference this
instruction manual for operation and/or safety
information.
Protective earth (ground) terminal.
Functional earth (ground) terminal.
Direct current supply only.
Alternating current supply only.
This symbol, when noted on a product enclosure or
barrier, indicates that a risk of electrical shock and/or
electrocution exists and indicates that only
individuals qualified to work with hazardous voltages
should open the enclosure or remove the barrier.
Recycle separately from general waste under the
WEEE directive.

8AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
2 Transmitter overview
Pressure transducer
I/O
Input from renewable
energy power source
Integral
Internal battery-powered only
No output(s)
Integral
Internal battery/renewable-powered
Pulse/Modbus/SensusTM output(s) and pressure
I/O
Sensor
Pressure transducer
Input from renewable
energy power source
I/O
Sensor
Integral/Remote – Pipe/Wall mount
Internal battery/AC-powered
Pulse/Modbus/Senus output(s)
Integral/Remote – Pipe/Wall mount
Internal battery/AC/renewable-powered
Pulse/Modbus/Senus output(s) and pressure
Figure 1 AquaMaster4 (FET41X/43X) configuration options
Figure 2 AquaMaster4 (FET45X) configuration options
Power
I/O Pressure
transducer
I/O
Sensor
Pressure
transducer
Integral
Internal battery
4G/nB-IoT/Pulse/Modbus and pressure
Remote – Wall mount
External battery/AC/renewable-powered
4G/nB-IoT/Pulse/Modbus and pressure

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 9
3 Product identification labels
Nameplate – FET41X/43X
Integral transmitter
0122
EU-TEC No. T11851
Assembled YYYY/MM
SW: 3KXF208402U0113
Supply:
Battery:3.6Vdc (2xD Cell)
Logger: ABB
Enclosure: IP68 (NEMA 6P)
Size: DN40 Temp. Class: T50
Accuracy: Class 2 MAP: 16 bar
Q3: 40mˆ3/hr Q3/Q1: R250
Env. Class: O, E2 Temp. Amb.: -25°C to +55°C
U5/D5 Δp 40
XXXXXXXXXXXXXXXXXXXXX
.XXX.XXX.XXX
Replace original batteries by YYYY/MM
FLOW FLOW FLOW
AquaMaster4

FIRE MAIN REGULAR
METER EX26564
Installation DOC.:SS/FET400-EN
A Model type/number
B Transmitter-specific tag
C ABB-defined product serial number
D Min./Max. voltage rating
E Logger (shown if available)
F Enclosure ingress protection rating
G Transmitter disposal categories
H Applicable certification
I OIML R49 class
J Sensor size
K Temperature class
L Maximum admissable pressure
M Highest flow rate within rated operating conditions
N Ambient temperature
O Environmental and electromagnetic class
P Software number
Q Installation sensitivity class
R Pressure loss class
Figure 3 Name plate – integral transmitter (example)
Remote-mount transmitter
0122
EU-TEC No. T11851
Assembled YYYY/MM
SW: 3KXF208402U0113
Supply:
~95-240Vac, 50/60Hz, 3VA + Backup
Logger: ABB
Enclosure: IP68 (NEMA 6P)
Env. Class: O, E2 Temp. Amb.:-25°C to +55°C
XXXXXXXXXXXXXXXXXXXXX
.XXX.XXX.XXX
FLOW FLOW FLOW
AquaMaster4
FIRE MAIN REGULAR
METER EX26564
Installation DOC.:SS/FET400-EN

A Model type/number
B Transmitter-specific tag
C ABB-defined product serial number
D Min./Max. voltage rating
E Logger (shown if available)
F Enclosure ingress protection rating
G Transmitter disposal categories
H Applicable certification
I Ambient temperature
J Environmental and electromagnetic class
K Software number
Figure 4 Name plate – remote-mount transmitter (example)
0122
EU-TEC No. T11851
Assembled YYYY/MM
SW: 3KXF208402U0113
Supply:
Battery:3.6Vdc (2xD Cell)
Logger: ABB
Enclosure: IP68 (NEMA 6P)
Size: DN40 Temp. Class: T50
Accuracy: Class 2 MAP: 16 bar
Q3: 40mˆ3/hr Q3/Q1: R250
Env. Class: O, E2 Temp. Amb.: -25°C to +55°C
U5/D5 Δp 40
XXXXXXXXXXXXXXXXXXXXX
.XXX.XXX.XXX
Replace original batteries by YYYY/MM
FLOW FLOW FLOW
AquaMaster4

FIRE MAIN REGULAR
METER EX26564
Installation DOC.:SS/FET400-EN
IJK
L
M
P
Q
R
NO
0122
EU-TEC No. T11851
Assembled YYYY/MM
SW: 3KXF208402U0113
Supply:
~95-240Vac, 50/60Hz, 3VA + Backup
Logger: ABB
Enclosure: IP68 (NEMA 6P)
Env. Class: O, E2 Temp. Amb.:-25°C to +55°C
XXXXXXXXXXXXXXXXXXXXX
.XXX.XXX.XXX
FLOW FLOW FLOW
AquaMaster4
FIRE MAIN REGULAR
METER EX26564
Installation DOC.:SS/FET400-EN

K
I
J
Note: For some configurations of the product, only some of the items listed will be printed on the labels.

10 AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
…3 Product identification labels
Nameplate – FET45X
Integral transmitter
A Model type/number
B Maximum admissable pressure
C Temperature class
D Transmitter-specific tag
E Sensor size
F Logger (shown if available)
G Applicable certification
H Transmitter disposal categories
I Pressure loss class
J Installation sensitivity class
K Date
L Ambient temperature
M Environmental and electromagnetic class
N Q3/Q1 (R)
O Min./Max. voltage rating
P Manufacturer
Q Highest flow rate within rated operating conditions
R OIML R49 class
S Enclosure ingress protection rating
T ABB-defined product serial number
Figure 5 Name plate – integral transmitter (example)
Remote Transmitter
A Model type/number
B Transmitter-specific tag
C Min./Max. voltage rating
D Date
E Disposal categories
F Applicable certification
G Logger (shown if available)
H Environmental and electromagnetic class
I Manufacturer
J Ambient temperature
K Enclosure ingress protection rating
L ABB-defined product serial number
Figure 6 Name plate – remote transmitter (example)
ACB H
JI
G
F
E
D
N
Date: MM/YYYY
AquaMaster 4
Model:XXXXXXXXXXXXXXXXXXXXX.XXX.XXX.XXX
Tag: XXXXXXXX
Serial: XXXXXXXXXXXXXX
Size:DN40
MAP(25ć):16 bar
Enclosure:IP68(NEMA 6P)
Q3:40 m^3/hr Q3/Q1(R):R250
Accuracy:Class 2
Temperature Class:T50
Supply:Battery 3.6Vdc(6xD Cell)
Logger:ABB
Manufactured by: ABB Engineering (Shanghai) Ltd.
Replace original batteries by YYYY/MM MYY 0122
EU-TEC No.T11851
Env.Class: O, E2
Temp. Amb.:-25ć~55ć
Shanghai, 201319, China
Pressure loss class:∆p10(0.10 bar)
Flow profile sensitivity class:U0/D0
K
L
M
O
P
Q
R
S
T
AquaMaster 4
Model:XXXXXXXXXXXXXXXXXXXXX.XXX.XXX.XXX
Tag:XXXXXXXX
Serial:XXXXXXXXXXXXXX
Date:MM/YYYY
Supply:3.6Vdc
Enclosure:IP68(NEMA 6P) Logger:ABB
MYY 0122
EU-TEC No.T11851
Manufactured by:ABB Engineering (Shanghai) Ltd.
Temp. Amb.:-25ć~55ć
Shanghai, 201319, China
Env. Class: O, E2
L
K
AD
G
E
F
BC
J
H
I

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 11
4 Transport and storage
Inspection
Check the transmitter immediately after unpacking for possible
damage that may have occurred from improper transport.
Details of any damage that has occurred in transit must be
recorded on the transport documents. All claims for damages
must be submitted to the shipper without delay and before
installation.
Transport
WARNING – BODILY INJURY
Life-threatening danger due to suspended loads. In
the case of suspended loads, a danger of the load
falling exists.
Remaining under suspended loads is prohibited.
WARNING – RISK OF INJURY DUE TO FLOWMETER
SLIPPING.
The flowmeter's center of gravity may be higher than
the harness suspension points.
• Ensure that the flowmeter does not slip or turn
during transport.
• Support the flowmeter laterally during transport.
Storing the flowmeter/transmitter
Bear the following points in mind when storing transmitters:
• Store the transmitter in its original packaging in a dry and
dust-free location.
• Observe the permitted ambient conditions for transport and
storage.
• Do not store the transmitter in direct sunlight.
Storage temperature
–20 to 60 °C (–4 to 140 °F).
The ambient conditions for the transport and storage of the
transmitter correspond to the ambient conditions for
operation of the transmitter.
Adhere to the transmitter data sheet (DS/FET400/OIML-EN).

12 AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
5 Installation
Installation conditions – FET 410/430
Integral version –
allow room to read
data plate
Figure 7 Siting
60 °C
(140 °F)
maximum
–20 °C
(–4 °F)
minimum
Figure 8 Within temperature limits
Figure 9 Shade
Figure 10 Vibration
Figure 11 Spillage
<2 m
(78 in.)
Submerged –
9 months
accrued time
IP68 (NEMA 6P)
ENCLOSURE 6P
Figure 12 Within environmental rating

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 13
Pressure transducer
Pressure transducer
Figure 13 Pressure transducer – protect from frost
For access to display and
communication
Figure 14 Access to transmitter

14 AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
…5 Installation
Installation conditions – FET 450
Figure 15 Siting
60 °C
(140 °F)
maximum
–20 °C
(–4 °F)
minimum
Figure 16 Within temperature limits
Figure 17 Shade
Figure 18 Vibration
Figure 19 Spillage
<2 m (78 in)
Submerged –
9 months
accrued time
IP68 (NEMA 6P)
ENCLOSURE 6P
Figure 20 Within environmental rating
Integral version –
allow room to read
data plate

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 15
Pressure transducer
Pressure transducer
Figure 21 Pressure transducer – protect from frost
For access to display and
communication
Figure 22 Access to transmitter

16 AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
…5 Installation
Dimensions – FET410/430
Dimensions in mm (in.)
87
(3.42)
Wall-/Pipe-mount remote transmitter
128
(5.04)
184 (7.23) 127 (5.00)
100 (3.93)
106 (4.17)
102
(4.01)
138
(5.43)
128
(5.04)
88
(3.50)
156 (6.14)
156 (6.14)
184 (7.23)
Integral transmitter Transmitter with NFC aerial cover
93 (3.7)
145
(5.7)
Figure 23 AquaMaster4 transmitter dimensions

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 17
Dimensions – FET450
Dimensions in mm (in)
178
(7.0)
111
(4.4)
39.5
(1.5)
180
(7.1) 204
(8.0)
191
(7.5)
195
(7.7)
178
(7.0)
Integral transmitter
Wall-/Pipe-mount remote transmitter
243
(9.6)

18 AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
…5 Installation
Dimensions – Power supply unit for FET452
112
(4.4)
138
(5.4)
120
(4.7)
161.5
(6.4)
112
(4.4)
138
(5.4)
120
(4.7)
147.5
(5.8)
115
(4.52)
115
(4.52)
Battery power supply unit (PSU)
Mains / renewable power supply unit (PSU)

AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D 19
Antenna installation – FET45X
Before deciding on an antenna mounting location, check that
the local signal strength for the chosen mobile phone network
is satisfactory. Use the transmitter and Velox app to establish
the signal strength (refer to page 50).
The minimum signal strength for the remote communication is
-37 dB corresponding to 26% as stated above. The
recommended signal strength is -73 dB or 52%.
If a transmitter is not available, a standard mobile phone on the
same network, positioned as close as possible to the intended
location, gives a good indication of local signal strength.
IMPORTANT (NOTE)
The signal strength mentioned above are applicable
for both internal or external antenna of the
transmitter.
The following must also be observed when deciding on the
antenna mounting location:
• For best results, mount the antenna as high above local
ground level as possible.
• If the antenna must be mounted below ground, achieve
optimum results by ensuring:
– there is a strong mobile phone network signal at ground
level
– the antenna, mounted 50 mm (2 in.) below the chamber
cover, is plastic
• Ensure the antenna does not become submerged underwater.
• Metallic enclosures seriously degrade the signal. If an
enclosure is used it must be non-metallic.
• Do not mount the antenna closer than 50 mm (2 in.) to any
solid wall or surface
• Do not mount the antenna beneath a solid surface (for
example, metal cover, floor / ceiling).
Figure 24 3G/4G or NB-IoT antenna installation
50 mm (2.0 in.)
Remote Antenna
50 mm (2.0 in.)
Integral Antenna
>150 mm
(6.0 in.)

20 AQUAMASTER4 | ELECTROMAGNETIC FLOWMETER TRANSMITTER | OI/FET400-EN REV. D
…5 Installation
Connecting a remote antenna
Referring to Figure 25:
1 Remove the cap 1from the antenna connector.
2 Install the antenna adaptor 2in the antenna connector.
Figure 25 Installing the antenna adaptor
Referring to Figure 26:
3 Install the remote antenna in the mounting hole.
4 Connect the SMA connector to the antenna adaptor 1.
5 Use 3M tape 2to wrap the connection between the SMA
connector and the antenna adaptor.
6 Torque the mounting screw 3of the antenna to 4.0 Nm
(41 kgf.cm).
Figure 26 Installing the remote antenna
1
2
1
2
3
16 mm
14 mm