Endress+Hauser Waterpilot FMX167 User manual

Products Solutions Services
BA00231P/00/EN/13.13
71118684
Operating Instructions
Waterpilot FMX167
Hydrostatic level measurement

Waterpilot FMX167
2Endress+Hauser
Table of contents
1 About this document . . . . . . . . . . . . . . . 3
1.1 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Registered Trademarks . . . . . . . . . . . . . . . . . . . . . . 4
2 Basic safety instructions . . . . . . . . . . . . 5
2.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Installation, commissioning and operation . . . . . . 5
2.3 Operational and process safety . . . . . . . . . . . . . . . . 5
3 Incoming acceptance and product
identification . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Incoming acceptance . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Product identification . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Transport and storage . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5 CE mark, Declaration of Conformity . . . . . . . . . . . . 7
4 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Mounting requirements . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Mounting the Waterpilot with a mounting clamp 9
4.3 Mounting with an extension cable mounting
screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 Mounting the terminal box . . . . . . . . . . . . . . . . . 11
4.5 Mounting the TMT181 temperature head
transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.6 Post-mounting check . . . . . . . . . . . . . . . . . . . . . . 12
5 Electrical connection. . . . . . . . . . . . . . . 13
5.1 Connecting the device . . . . . . . . . . . . . . . . . . . . . 13
5.2 Measuring unit electrical connection . . . . . . . . . 16
5.3 Post-connection check . . . . . . . . . . . . . . . . . . . . . 16
6 Operability . . . . . . . . . . . . . . . . . . . . . . . 17
7 Troubleshooting . . . . . . . . . . . . . . . . . . 17
7.1 Troubleshooting specific to Waterpilot FMX167
with optional Pt100 . . . . . . . . . . . . . . . . . . . . . . . 17
7.2 Troubleshooting specific to TMT181 temperature
head transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8 Maintenance . . . . . . . . . . . . . . . . . . . . . 18
8.1 Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9.1 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9.2 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
10 Accessories . . . . . . . . . . . . . . . . . . . . . . . 19
10.1 Mounting clamp . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10.2 Terminal box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10.3 Additional weight for FMX167 with an outer
diameter of 22 mm (0.87 in) and 29 mm
(1.14 in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10.4 TMT181 temperature head transmitter
(4 to 20 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.5 Extension cable mounting screw . . . . . . . . . . . . . 20
10.6 Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.7 Cable marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.8 Cable shortening kit . . . . . . . . . . . . . . . . . . . . . . . . 21
10.9 Testing adapter for Waterpilot with an outer
diameter of 22 mm (0.87 in) and 29 mm
(1.14 in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
11 Technical data. . . . . . . . . . . . . . . . . . . . .21
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Waterpilot FMX167 About this document
Endress+Hauser 3
1 About this document
1.1 Symbols
1.1.1 Safety symbols
1.1.2 Electrical symbols
1.1.3 Symbols for certain types of information
Symbol Meaning
A0011189-DE
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
seriousor fatal injury.
A0011190-DE
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
seriousor fatal injury.
A0011191-DE
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minoror medium injury.
A0011192-DE
NOTICE!
This symbol contains information on procedures and other facts which do not result in per-
sonalinjury.
Symbol Meaning
A0018335
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
A0018336
Alternating currrent
A terminal to which alternating voltage is applied or through which alternating current
flows.
A0018337
Direct current and alternating current
• A terminal to which alternating voltage or DC voltage is applied.
• A terminal through which alternating current or direct current flows.
A0018338
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a
grounding system..
A0018339
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
A0011201
Equipotential connection
A connection that has to be connected to the plant grounding system: This may be a
potential equalization line or a star grounding system depending on national or company
codes of praxis.
Symbol Meaning
A0011193
Tip
Indicates additional information.
A0015484
Reference to page
Refers to the corresponding page number.
DANGER
WARNING
CAUTION
NOTICE

About this document Waterpilot FMX167
4Endress+Hauser
1.1.4 Symbols in graphics
1.1.5 Symbols at the device
1.2 Registered Trademarks
GORE-TEX®
W.L. Gore & Associates, Inc., USA brand.
TEFLON®
E.I. Du Pont de Nemours & Co., Wilmington, USA brand.
Symbol Meaning
1, 2, 3, 4, ... Item numbers
A, B, C, D, ... Views
A0011187
Hazardous area
Indicates a hazardous area.
A0011188
Safe area (non-hazardous area)
Indicates a non-hazardous location.
Symbol Meaning
Connecting cable immunity to temperature change
Indicates that the connecting cables must be able to withstand temperatures of at least
85 °C (185 °F).
-
.
t >85°C

Waterpilot FMX167 Basic safety instructions
Endress+Hauser 5
2 Basic safety instructions
2.1 Designated use
The Waterpilot FMX167 is a hydrostatic pressure sensor for measuring the level of fresh
water, wastewater and salt water. The temperature is measured simultaneously in the case
of sensor versions with a Pt100 resistance thermometer. An optional temperature head
transmitter converts the Pt100 signal to a 4 to 20 mA signal.
The manufacturer accepts no liability for damages resulting from incorrect use or use other
than that designated.
2.2 Installation, commissioning and operation
The Waterpilot FMX167 and the (optional) TMT181 temperature head transmitter are
designed to meet state-of-the-art safety requirements and comply with applicable
regulations and EC Directives. If used incorrectly or for applications for which they are not
intended, the devices can be a source of application-related danger, e.g. product overflow
due to incorrect installation or configuration. For this reason, installation, connection to the
electricity supply, commissioning, operation and maintenance of the measuring system
must only be carried out by trained, qualified specialists authorized to perform such work by
the facility's owner-operator. The specialist staff must have read and understood these
Operating Instructions and must follow the instructions they contain. Modifications and
repairs to the devices are permissible only if they are expressly allowed in the Operating
Instructions. Pay particular attention to the data and information on the nameplate.
2.3 Operational and process safety
Alternative monitoring measures have to be taken while configuring, testing or servicing the
device to ensure the operational and process safety.
2.3.1 Hazardous area (optional)
Devices for use in hazardous areas bear an additional marking on the nameplate (ä6).
If using the measuring system in hazardous areas, the appropriate national standards and
regulations must be observed. The device is accompanied by separate Ex documentation,
which is an integral part of this documentation. The installation regulations, connection
values and safety instructions listed in this document must be observed. The documentation
number of the related Safety Instructions (XA) is also indicated on the nameplate.
• Ensure that all personnel are suitably qualified.
• Measuring point requirements with regard to measurement and safety must be observed.
• Please refer to the "Ordering information" section of Technical Information TI00351P/00/
EN for versions for approvals in the order code.

Incoming acceptance and product identification Waterpilot FMX167
6Endress+Hauser
3 Incoming acceptance and product
identification
3.1 Incoming acceptance
• Check the packaging and the contents for damage.
• Check the shipment, make sure nothing is missing and that the scope of supply matches
your order.
3.2 Product identification
The following options are available for identification of the measuring device:
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter serial numbers from nameplates in W@M Device Viewer (www.endress.com/
deviceviewer): All information about the measuring device is displayed
3.2.1 Identifying the measuring device via the nameplate
The nameplate is secured to the extension cable of the FMX167 (ä8).
A0018801
1Ordercode
See the specifications on the order confirmation for the meanings of the individual letters and digits.
2 Serial number
3 Nominal measuring range
4TAG(Tagging)
5 Length of the extension cable
6 FMX167 connection diagram
7 Pt100 connection diagram (if the Waterpilot was ordered with Pt100)
8 Observe the information on installation in the Operating Instructions!
9 Approval symbol (optional)
10 Symbol: Observe Safety Instructions, with information on the documentation number, e.g. XA00131P (optional)
11 Test date (optional)
12 Text for approval (optional)
13 Identification number of the notified body for ATEX (optional)
14 Ex symbol (CSA, FM, optional)
15 Wetted materials
16 Supply voltage
17 Output
In addition, the FMX167 with an outer diameter of 22 mm (0.87 in) and 42 mm (1.65 in)
also bears the following information:
Ser.-No.:
Order Code: L=
Mat:
Messbereich/range:
Dat./Insp.:
250000874-C
TAG:
Vmax:
WaterpilotFMX167
Made in Germany, D-79689 Maulburg
12345
6
7
8910
11
12
13
14
15
16
17

Waterpilot FMX167 Incoming acceptance and product identification
Endress+Hauser 7
A0018803
1 Serial number
2 Nominal measuring range
3 CE mark or approval symbol
4 Identification number of the notified body for ATEX (optional)
5 Text for approval (optional)
3.2.2 Identifying the measuring device via the order code
Specific device features make up the order code. You can assign these features in the
"Ordering information" section of Technical Information TI00351P/00/EN.
3.3 Transport and storage
3.3.1 Transport
NOTICE
Devices or cable may be damaged
‣Comply with the safety instructions, transport conditions for devices over 18kg (39.6lbs)
(DIN EN 61010-1).
‣Transport the measuring device to the measuring point in its original packaging.
3.3.2 Storage
The device must be stored in a dry, clean area and protected against damage from impact
(EN 837-2).
Storage temperature range:
• FMX167: –40 to +80 °C (–40 to +176 °F)
• TMT181: –40 to +100 °C (–40 to +212 °F)
• Terminal box: –40 to +80 °C (–40 to +176 °F)
3.4 Scope of delivery
The scope of delivery comprises:
• Waterpilot FMX167, optionally with integrated Pt100 resistance thermometer
• Optional accessories (ä19)
Documentation supplied:
• Operating Instructions BA00231P (this document)
• Calibration report/Final inspection report
• SD00126P drinking water approval (optional)
• Devices suitable for use in hazardous areas: Additional documentation such as Safety
Instructions (XA)
3.5 CE mark, Declaration of Conformity
The devices are designed to meet state-of-the-art safety requirements, have been tested and
left the factory in a condition in which they are safe to operate. The devices comply with the
applicable standards and regulations as listed in the EC Declaration of Conformity and thus
comply with the legal requirements of the EC Directives. Endress+Hauser confirms the
conformity of the device by affixing to it the CE mark.
WaterpilotFMX167
Serial-No.:
Messbereich/range:
123
45

Mounting Waterpilot FMX167
8Endress+Hauser
4Mounting
4.1 Mounting requirements
A0018678
Installation examples, here illustrated with FMX167 with an outer diameter of 22 mm (0.87 in)
1Extensioncablemountingscrew(can be ordered as an accessory )
2 Terminal box (can be ordered as an accessory )
3 Extension cable bending radius >120 mm (4.72 in)
4 Mounting clamp (can be ordered as an accessory )
5Extensioncable
6Guidepipe
7 Waterpilot FMX167
8 Additional weight can be ordered as an accessory for FMX167 with an outer diameter of 22 mm (0.87 in) and 29 mm (1.14 in)
9Protectioncap
4.1.1 Additional mounting instruction
•Cablelength
– Customer-specific length in meters or feet.
– Limited cable length when performing installation with freely suspended device with
extension cable mounting screw or mounting clamp, as well as for FM/CSA approval:
max. 300 m (984 ft).
• Sideways movement of the level probe can result in measuring errors. For this reason,
install the probe at a point free from flow and turbulence, or use a guide tube. The internal
diameter of the guide tube should be at least 1 mm (0.04 in) larger than the outer
diameter of the selected FMX167.
OPEN
CLOSE
90°
90°
Ser.-No.:
OrderCode: L=
Mat:
Messbereich/range:
Dat./Insp.:
250000874-C
TAG:
Vmax:
WaterpilotFMX167
Madein Germany, D-79689 Maulburg
1
2
3
4
5
6
7
8
9

Waterpilot FMX167 Mounting
Endress+Hauser 9
• The device is provided with a protection cap to prevent mechanical damage to the
measuring cell.
• The cable must end in a dry room or a suitable terminal box. The terminal box from
Endress+Hauser provides optimum humidity and climatic protection and is suitable for
outdoor installation.
• If the cable is shortened, the filter at the pressure compensation tube has to be reattached.
Endress+Hauser offers a cable shortening kit for this purpose, see the documentation
SD00552P/00/A6.
• Endress+Hauser recommends using twisted, shielded cables for any further wiring.
4.1.2 Dimensions
For dimensions, please refer to Technical Information TI00351P/00/EN for the Waterpilot,
"Mechanical construction" section (see also: www.endress.com Select Country 
Download Media Type: Documentation).
4.2 Mounting the Waterpilot with a mounting clamp
A0018793
1Extensioncable
2Mountingclamp
3 Clamping jaws
4.2.1 Mounting the mounting clamp:
Mount the mounting clamp (item 2). When selecting the place to fix the unit, take the
weight of the extension cable (item 1) and the device into account.
Raise the clamping jaws (item 3). Position the extension cable (item 1) between the
clamping jaws as illustrated in the graphic.
Hold the extension cable in position (item 1) and push the clamping jaws (item 3) back
down. Tap the clamping jaws gently from above to fix in place.
1
2
3

Mounting Waterpilot FMX167
10 Endress+Hauser
4.3 Mounting with an extension cable mounting screw
A0018794
Illustrated with thread G 1½". Dimensions in mm (in)
1Extensioncable
2Covermountingscrew
3 Sealing ring
4 Clamping sleeves
5 Mounting screw adapter
6 Top edge of clamping sleeve
7 Required length of extension cable and probe before assembly
8 After assembly, item 7 is located next to the mounting screw with
G 1½" thread: height of sealing surface of the adapter or NPT 1½" thread height of thread run-out of adapter
If you want to lower the level probe to a certain depth, place the top edge of the
clamping sleeve 40 mm (1.57 in) higher than the required depth. Then push the
extension cable and the clamping sleeve into the adapter as described in Step 6 in the
following section.
4.3.1 Mounting extension cable mounting screw with G 1½" or
NPT 1½" thread:
Mark the desired length of the extension cable on the extension cable.
Insert the probe through the measuring aperture and carefully lower on the extension
cable. Fix the extension cable to prevent it from slipping.
Push the adapter (item 5) over the extension cable and screw it tightly into the
measuring aperture.
Push the sealing ring (item 3) and cover (item 2) onto the cable from above. Press the
sealing ring into the cover.
Place the clamping sleeve (item 4) around the extension cable at the mark (item 1) in
accordance with step 1.
Push the extension cable with the clamping sleeve (item 4) into the adapter (item 5).
Push the cover (item 2) and sealing ring (item 3) onto the adapter (item 5) and screw
tightly to the adapter.
Reverse the sequence of steps to remove the extension cable mounting screw.
CAUTION
!
Risk of injury
‣Application in unpressurized containers only.
+40
()
+1.57
1
6
8
7
2
3
4
5
36
41

Waterpilot FMX167 Mounting
Endress+Hauser 11
4.4 Mounting the terminal box
The optional ° is mounted with four screws (M4). For the dimensions of the terminal box,
please refer to Technical Information TI00351P/00/EN for the Waterpilot, "Mechanical
construction" section (see also: www.endress.com Select Country Download 
Media Type: Documentation).
4.5 Mounting the TMT181 temperature head transmitter
A0018806
Temperature head transmitter with terminal box
1Mountingscrews
2Mountingsprings
3 TMT181 temperature head transmitter
4 Circlips
5Terminalbox
Only open the terminal box with a screwdriver.
4.5.1 Mounting the temperature head transmitter
Guide the mounting screws (item 1) with the mounting springs (item 2) through the
guide holes of the temperature head transmitter (item 3).
Fix the mounting screws with the circlips (item 4). Circlips, mounting screws and
springs are included in the scope of delivery for the temperature head transmitter.
Screw the temperature head transmitter into the field housing tightly.
(Max. width of screwdriver blade 6 mm (0.24 in))
NOTICE
Prevent damage to the temperature head transmitter.
‣Do not tighten the mounting screw too tightly.
CLOSE
90°
OPEN
90°
1
2
3
4
5

Mounting Waterpilot FMX167
12 Endress+Hauser
A0018798
A distance of > 7 mm (> 0.28 in) must be maintained between the terminal strip and
the TMT181 temperature head transmitter.
4.6 Post-mounting check
Check that all screws are firmly seated.
>7
(0.28)
mm (in)

Waterpilot FMX167 Electrical connection
Endress+Hauser 13
5 Electrical connection
5.1 Connecting the device
WARNING
!
Explosion hazard!
‣When using the measuring device in hazardous areas, installation must comply with the
corresponding national standards and regulations and the Safety Instructions or
Installation or Control Drawings.
• The supply voltage must match the supply voltage on the nameplate (ä6).
• Switch off the supply voltage before connecting the device.
• The cable must end in a dry room or a suitable terminal box. The IP66/IP67 terminal box
with a GORE-TEX®from Endress+Hauser is suitable for outdoor installation (ä11).
• Connect the device in accordance with the following diagrams. Reverse polarity protection
is integrated in both the Waterpilot FMX167 and TMT181 temperature head transmitter.
Changing the polarities will not result in the destruction of the devices.
• A suitable circuit breaker should be provided for the device in accordance with IEC/EN
61010.
A0018670
AWaterpilot FMX167, versions "7" or "3" for Feature 70 "Additional options" in the order code
BWaterpilot FMX167 with Pt100

, versions "1" or "4" for feature 70 "Additional options" in the order code
1 Not for FMX167 with outer diameter 29 mm (1.14 in)
2 10 to 30 V DC
3 4 to 20 mA
4 Resistance (RL)
5 Pt100
 Not for use in hazardous areas.
RD BK RD BK
WH
YE BU
BR
a
AB
e
))
))
cc
dd
bb
a
FMX167
FMX167

Electrical connection Waterpilot FMX167
14 Endress+Hauser
A0018674
Waterpilot FMX167 with Pt100 and TMT181

(4 to 20 mA)

, version "5" for feature 70 in the order code
a Not for FMX167 with outer diameter 29 mm (1.14 in)
b 10 to 30 V DC
c 4 to 20 mA
d Resistance (RL)
e TMT181 temperature head transmitter (4 to 20 mA)
f 8 to 35 V DC
g Pt100
 Not for use in hazardous areas.
Wire colors
RD = red, BK = black, WH = white, YE = yellow, BU = blue, BR = brown
5.1.1 Supply voltage
5.1.2 Cable specification
• FMX167 with optional Pt100
– Commercially available, shielded instrument cable
– Terminals, FMX167 terminal box: 0.08 to 2.5 mm2(28 to 14 AWG)
• TMT181 temperature head transmitter (optional)
– Commercially available instrument cable
– Terminals, FMX167 terminal box: 0.08 to 2.5 mm2(28 to 14 AWG)
– Transmitter terminals: max. 1.75 mm2(16 AWG)
The extension cables are shielded for versions with outer diameters of 22 mm (0.87 in)
or 42 mm (1.65 in).
In the following cases, Endress+Hauser recommends the use of a shielded cable as the cable
extension:
• For large distances between the end of the extension cable and the display and/or
evaluation unit.
• For large distances between the end of the extension cable and the temperature head
transmitter.
• When directly connecting the Pt100 signal to a display and/or evaluation unit.
RD BK
WH
YE BU
BR
)
)
a
b
c
f
d
cd
g
6
5
4
3
2
1
e
FMX167
FMX167 FMX167 + Pt100 TMT181 temperature head transmitter
10 to 30 V DC 10 to 30 V DC 8 to 35 V DC

Waterpilot FMX167 Electrical connection
Endress+Hauser 15
5.1.3 Power consumption, current consumption
5.1.4 Load
The maximum load resistance depends on the supply voltage (U) and must be determined
individually for each current loop. See formulae and diagrams for "FMX167" and
"Temperature head transmitter".
The total resistance resulting from the resistances of the connected devices, the connecting
cable and, where applicable, the resistance of the extension cable may not exceed the load
resistance value.
FMX167 FMX167 + Pt100 TMT181 temperature head
transmitter
Power consumption 0.675 W at 30 V DC 0.675 W at 30 V DC 0.875 W at 35 V DC
Current
consumption
Max. 22.5 mA
Min. 3.5 mA
Max. 22.5 mA
Min. 3.5 mA
Pt100: 0.6 mA
Max. 25 mA
Min. 3.5 mA
FMX167 Temperature head transmitter
A0018755-EN A0018756-EN
– 2 0.09 L–R
U – 10 V
0.0225 A
W
m
£
RLmax add
–R
U–8V
0.025 A
£
RLmax
add
RLmax = Max. load resistance [  ]
Radd = Additional resistances such as resistance of evaluation unit and/or display unit, cable resistance [  ]
U = Supply voltage [V]
L=Simple length of extension cable [m] (cable resistance per wire  0.09  m)
A0018667
FMX167 load chart for estimating the load resistance.
Additional resistances, such as the resistance of the extension
cable, have to be subtracted from the value calculated as shown
in the equation.
A0018668
Temperature head transmitter load chart for estimating the
load resistance. Additional resistances have to be subtracted
from the value calculated as shown in the equation.
888
444
666
222
30
20 25
10 15
R
[]W
U
[]
V
30
20 25158
35
10
1080
880
480
280
680
80
R
[]W
U
[]
V

Electrical connection Waterpilot FMX167
16 Endress+Hauser
5.2 Measuring unit electrical connection
5.2.1 Overvoltage protection
To protect the Waterpilot FMX167 and the TMT181 temperature head transmitter from
large interference voltage peaks, Endress+Hauser recommends installing external
overvoltage protection upstream and downstream of the display and/or evaluation unit as
shown in the graphic.
Overvoltage protection in accordance with EN 61000 (500 V symmetrical/1000 V
asymmetrical) is integrated in the Waterpilot FMX167 as standard.
A0018941
APower supply, display and evaluation unit with one input for Pt100
BPower supply, display and evaluation unit with one input for 4 to 20 mA
CPower supply, display and evaluation unit with two inputs for 4 to 20 mA
1 Waterpilot FMX167
2 Connection for integrated Pt100 temperature sensor in the FMX167
3 4 to 20 mA (Temperature)
4 4 to 20 mA (Level)
5 Overvoltage protection (OP), e.g. HAW from Endress+Hauser (not for use in hazardous areas)
6 Power supply
5.3 Post-connection check
The following checks must be performed after completing electrical connection of the device:
• Does the supply voltage match the specifications on the nameplate?
• Is the device connected as described in Kap. 5.1 "Connecting the device"?
• Are all screws firmly tightened?
• Optional terminal box: are the cable glands leaktight?
1
3
4
3
4
5
5
5
5
5
5
5
6
6
6
2
A
B
B
C
2

Waterpilot FMX167 Operability
Endress+Hauser 17
6Operability
Endress+Hauser offers comprehensive measuring point solutions with display and/or
evaluation units for the Waterpilot and TMT181 temperature head transmitter.
Please contact your Endress+Hauser sales representative, if you have any other
questions. Contact addresses can be found on the Internet: www.endress.com/
worldwide.
7 Troubleshooting
7.1 Troubleshooting specific to Waterpilot FMX167 with
optional Pt100
7.2 Troubleshooting specific to TMT181 temperature
head transmitter
Error description Cause Remedial action
No measuring signal 4 to 20 mA cable not connected
correctly
Connect device in accordance with
ä13, Kap. 5.1
No power supplied via the 4 to 20
mA cable
Check current loop
Supply voltage too low (min. 10 V
DC)
– Check supply voltage.
– Overall resistance greater than
max. load resistance ä13,
Kap. 5.1
Waterpilot defective Replace the Waterpilot
Temperature measured value is
inaccurate/incorrect (only for
Waterpilot FMX167 with Pt100)
Pt100 connected in 2-wire circuit,
cable resistance was not
compensated for
– Compensate cable resistance
– Connect Pt100 as 3-wire or 4-
wire circuit
Error description Cause Remedial action
No measuring signal 4 to 20 mA cable not connected
correctly
Connect device in accordance with
ä13, Kap. 5.1
No power supplied via the 4 to 20
mA cable
Check current loop
Supply voltage too low (min. 8 V DC) – Check supply voltage.
– Overall resistance greater than
max. load resistance ä13,
Kap. 5.1
Error current 3.6 mA or 21 mA Pt100 not connected correctly Connect device in accordance with
ä13, Kap. 5.1
4 to 20 mA cable not connected
correctly
Connect device in accordance with
ä13, Kap. 5.1
Pt100 resistance thermometer
defective
Replace the Waterpilot
Temperature head transmitter
defective
Replace the temperature head
transmitter
Measured value is inaccurate/
incorrect
Pt100 connected in 2-wire circuit,
cable resistance was not
compensated
–Compensatecable resistance
– Connect Pt100 as 3-wire or 4-
wire circuit

Maintenance Waterpilot FMX167
18 Endress+Hauser
8 Maintenance
No special maintenance work is required for the Waterpilot and for the optional TMT181
temperature head transmitter.
Terminal box: Keep the pressure compensation tube and GORE-TEX®filter free from
contamination.
8.1 Exterior cleaning
Please note the following points when cleaning the devices externally:
• The cleaning agents used should not corrode the housing surface and the seals.
Information on this can be found on the nameplate (ä6).
• Mechanical damage to the process isolating diaphragm or the extension cable must be
avoided.
• Only clean the terminal box with water or with a cloth dampened with very diluted
ethanol.
9Repair
9.1 Spare parts
You can order spare parts directly from your Endress+Hauser service organization.
In the W@M Device Viewer (www.endress.com/deviceviewer) all spare parts for the
measuring device, along with the order code, are listed here and can be ordered. If
available, users can also download the associated Installation Instructions.
9.2 Return
The measuring device must be returned if repairs or a factory calibration are required, or if
the wrong measuring device has been ordered or delivered. According to legal regulations,
Endress+Hauser, as an ISO-certified company, is required to follow certain procedures when
handling returned products that are in contact with medium. To ensure swift, safe and
professional device returns, please read the return procedures and conditions on the
Endress+Hauser website at: www.services.endress.com/return-material
9.3 Disposal
When disposing, separate and recycle the device components based on the materials.
Protection cap for
process isolating
diaphragm
5 pieces in set Order number:
52008999
For FMX167 with an outer diameter of
22 mm (0.87 in) and 29 mm (1.14 in)
1 piece Order number:
917755-0000
For FMX167 with an outer diameter of
42 mm (1.65 in)
Pressure compensa-
tion kit
Set comprising:
10 Teflon filters
5 cable sleeves for the
extension cable
Order number:
52005578

Waterpilot FMX167 Accessories
Endress+Hauser 19
10 Accessories
Various accessories, which can be ordered separately from Endress+Hauser, are available for
the Waterpilot see also Technical Information TI00351P/00/EN, "Ordering information"
section.
10.1 Mounting clamp
• Endress+Hauser offers a mounting clamp for easy Waterpilot mounting (ä9).
• Material: 316L (1.4404 ) and fiberglass reinforced PA (polyamide)
• Order number: 52006151
10.2 Terminal box
• Terminal box IP66/IP67 with GORE-TEX®-filter incl. 3 installed terminals.
The terminal box is also suitable for installing a temperature head transmitter (order
number: 52008794) or for four additional terminals (order number: 52008938)
(ä11).
• Order number: 52006152
The terminal box is not intended for the FMX167 with Ex nA explosion protection in
the hazardous area. When using the terminal box in hazardous areas, installation must
comply with the corresponding national standards and regulations and the Safety
Instructions or Installation or Control Drawings.
10.3 Additional weight for FMX167 with an outer diameter
of 22 mm (0.87 in) and 29 mm (1.14 in)
Endress+Hauser offers additional weights to prevent sideways movement that results in
measuring errors, or to make it easier to lower the device in a guide tube.
You can screw several weights together. The weights are then attached directly to the
Waterpilot. For the Waterpilot with an outer diameter of 29 mm (1.14 in), version with a
plastic insulation, a maximum of 5 weights may be attached.
A0018748
• Material: 316L (1.4435)
• Weight: 300 g (10.581 oz)
• Order number: 52006153
ø22 (0.87)
M14x1
105.8 (4.16)
110.6 (4.35)
mm (in)

Accessories Waterpilot FMX167
20 Endress+Hauser
10.4 TMT181 temperature head transmitter (4 to 20 mA)
• 2-wire temperature head transmitter, configured for a measuring range from
–20 to +80 °C (–4 to +176 °F). This setting offers a temperature range of 100K which can
be easily mapped. Please note that the Pt100 resistance thermometer is designed for a
temperature range from –10 to +70 °C (+14 to +158 °F), (ä11).
• Order number: 52008794
10.5 Extension cable mounting screw
• Endress+Hauser offers extension cable mounting screws to ease FMX167 mounting and
to seal the measuring aperture (ä10).
• Material: 304 (1.4301)
• Order number for extension cable mounting screw:
– 52008264 (G 1½" A)
– 52009311 (NPT 1½")
10.6 Terminals
• Four terminals in strip for FMX21 terminal box, suitable for wire cross-sections: 0.08 to
2.5 mm(28...14 AWG)
• Order number: 52008938
10.7 Cable marking
To make installation easier, Endress+Hauser marks the customer-specific length on the
extension cable, see Technical Information TI00351P/00/EN, "Ordering information"
section.
A0018792
ACable marking
BCable marking tolerance
• Cable marking tolerance (distance to the
lower end of the cable probe):
Cable length < 5 m (16 ft): ±17.5 mm
(0.69 in)
Cable length > 5 m (16 ft): ±0,2 %
• Material: PET, Adhesive: acrylic
• Immunity to temperature change:
–30 to +100 °C (–22 to 212 °F)
NOTICE
The mark is only for installation purposes.
‣It must be thoroughly removed without
trace in the case of devices with drinking
water approval. The extension cable must
not be damaged in the process.
WARNING
!
Explosion hazard!
‣Not for use in hazardous areas.
B
A