Endress+Hauser Waterpilot FMX11 User manual

Products Solutions Services
Operating Instructions
Waterpilot FMX11
Hydrostatic level measurement
4 to 20 mA analog
BA02028P/00/EN/01.20
71505306
2020-08-03
Valid as of version
01.00.zz

Waterpilot FMX11
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555
• Make sure the document is stored in a safe place such that it is always available when
working on or with the device.
• To avoid danger to individuals or the facility, read the "Basic safety instructions" section
carefully, as well as all other safety instructions in the document that are specific to
working procedures.
• The manufacturer reserves the right to modify technical data without prior notice. Your
Endress+Hauser distributor will supply you with current information and updates to
these Operating Instructions.

Waterpilot FMX11 Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Document function ..................... 4
1.2 Symbols .............................. 4
1.3 List of abbreviations ..................... 5
1.4 Documentation ........................ 6
2 Basic safety instructions ............ 7
2.1 Requirements concerning the staff .......... 7
2.2 Designated use ........................ 7
2.3 Workplace safety ....................... 7
2.4 Operational safety ...................... 7
2.5 Product safety ......................... 8
3 Product description ................. 9
3.1 Product design ......................... 9
4 Incoming acceptance and product
identification ....................... 9
4.1 Incoming acceptance .................... 9
4.2 Product identification ................... 10
4.3 Storage and transport .................. 10
5 Installation ....................... 12
5.1 Installation conditions .................. 12
5.2 Mounting the measuring device ........... 13
5.3 Post-installation check .................. 14
6 Electrical connection .............. 15
6.1 Connection conditions .................. 15
6.2 Connecting the measuring device .......... 15
6.3 Post-connection check .................. 17
7 Operation options ................. 17
8 Diagnostics and troubleshooting ... 17
8.1 General troubleshooting ................. 17
9 Maintenance ...................... 18
9.1 Maintenance tasks ..................... 18
10 Repair ............................ 19
10.1 General information ................... 19
10.2 Spare parts .......................... 19
10.3 Return .............................. 19
10.4 Disposal ............................ 19
11 Accessories ....................... 20
11.1 Device-specific accessories ............... 20
12 Technical data .................... 21
12.1 Input ............................... 21
12.2 Output ............................. 22
12.3 Performance characteristics .............. 23
12.4 Environment ......................... 24
12.5 Process ............................. 25
12.6 Additional technical data ................ 25
Index .................................. 26

About this document Waterpilot FMX11
4 Endress+Hauser
1 About this document
1.1 Document function
These Operating Instructions contain all the information that is required in various phases
of the life cycle of the device: from product identification, incoming acceptance and
storage, to mounting, connection, operation and commissioning through to
troubleshooting, maintenance and disposal.
1.2 Symbols
1.2.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.2.2 Electrical symbols
Ground connection:
A grounded terminal which, as far as the operator is concerned, is grounded via a
grounding system.
1.2.3 Symbols for certain types of information
Permitted:
Procedures, processes or actions that are permitted.
Forbidden:
Procedures, processes or actions that are forbidden.

Waterpilot FMX11 About this document
Endress+Hauser 5
Additional information:
Series of steps:
1.
,
2.
,
3.
Result of an individual step:
1.2.4 Symbols in graphics
Item numbers: 1, 2, 3 ...
Series of steps:
1.
,
2.
,
3.
Views: A, B, C, ...
1.3 List of abbreviations
URL OPLMWP
LRL
0
p
1
2
3
A0042446
Item Term/abbreviation Explanation
1 OPL The OPL (over pressure limit = sensor overload limit) for the measuring device depends on the lowest-rated element,
with regard to pressure, of the selected components, i.e. the process connection has to be taken into consideration in
addition to the measuring cell. Also observe pressure-temperature dependency.
The OPL may only be applied for a limited period of time.
2 MWP The MWP (maximum working pressure) for the sensors depends on the lowest-rated element, with regard to
pressure, of the selected components, i.e. the process connection has to be taken into consideration in addition to the
measuring cell. Also observe pressure-temperature dependency.
The MWP may be applied at the device for an unlimited period.
3 Maximum sensor
measuring range/
calibrated span
Span between LRL and URL
This sensor measuring range is equivalent to the maximum calibratable/adjustable span.
p - Pressure
- LRL Lower range limit
- URL Upper range limit

About this document Waterpilot FMX11
6 Endress+Hauser
1.4 Documentation
All available documents can be downloaded using:
• the serial number of the device (see cover page for description) or
• the data matrix code of the device (see cover page for description) or
• "Download" area of web page: www.endress.com
1.4.1 Supplementary device-dependent documentation
Additional documents are supplied depending on the device version ordered: Always
comply strictly with the instructions in the supplementary documentation. The
supplementary documentation is an integral part of the device documentation.

Waterpilot FMX11 Basic safety instructions
Endress+Hauser 7
2 Basic safety instructions
2.1 Requirements concerning the staff
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
‣Trained, qualified specialists: must have a relevant qualification for this specific
function and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Before beginning work, the specialist staff must have read and understood the
instructions in the Operating Instructions and supplementary documentation as well as
in the certificates (depending on the application)
‣Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
‣Being instructed and authorized according to the requirements of the task by the
facility's owner-operator
‣Following the instructions in these Operating Instructions
2.2 Designated use
2.2.1 Application and media
The Waterpilot FMX11 is a hydrostatic pressure sensor for level measurement, for
example, in the area of untreated water extraction and drinking water storage.
2.2.2 Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Clarification of borderline cases:
‣For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance
in verifying the corrosion resistance of fluid-wetted materials, but does not accept any
warranty or liability.
2.3 Workplace safety
For work on and with the device:
‣Wear the required protective equipment according to federal or national regulations.
‣Switch off the supply voltage before connecting the device.
2.4 Operational safety
Risk of injury!
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with Endress+Hauser.

Basic safety instructions Waterpilot FMX11
8 Endress+Hauser
Repairs
To ensure continued operational safety and reliability,
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.
Hazardous area
To eliminate danger to persons or the facility when the device is used in the approval-
related area (e.g. explosion protection, pressure vessel safety):
‣Check the nameplate to verify if the device ordered can be put to its intended use in the
approval-related area.
‣Observe the specifications in the separate supplementary documentation that is an
integral part of these Instructions.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the-art safety requirements, has been tested, and left the factory in a condition in
which it is safe to operate.
It meets general safety standards and legal requirements. It also complies with the EC
directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.

Waterpilot FMX11 Product description
Endress+Hauser 9
3 Product description
3.1 Product design
The process pressure causes the metal process isolating diaphragm of the sensor to deflect.
A filling oil transfers the pressure to a Wheatstone bridge (semiconductor technology).
The pressure-dependent change in the bridge output voltage is measured and evaluated.
h
2
1
patm
phydr.
p = p + p
atm hydr.
patm
patm
h ~ p
r×g
h = p
Rel.: p = (p + p ) - p
sens atm hydr. atm
p = p + p
atm hydr.
Abs.: p = (p + p )
sens atm hydr.
A0019140
1 Metal measuring cell
2 Pressure compensation tube
h Level height
p Total pressure = atmospheric pressure + hydrostatic pressure
ρ Density of the medium
g Gravitational acceleration
Phydr. Hydrostatic pressure
Patm Atmospheric pressure
Psens Pressure displayed on the sensor
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
DELIVERY NOTE
1 = 2
A0016870

Incoming acceptance and product identification Waterpilot FMX11
10 Endress+Hauser
• Is the order code on the delivery note (1) identical to the order code on the product
sticker (2)?
• Do the data on the nameplate correspond to the order specifications and the delivery
note?
• Is the documentation provided?
• Are the goods undamaged?
If one of these conditions is not satisfied, contact the Endress+Hauser Sales Center.
4.2 Product identification
The following options are available for the identification of the measuring device:
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter serial number from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): all the information about the measuring device is
displayed.
For an overview of the technical documentation provided, enter the serial number from
the nameplates in W@M Device Viewer (www.endress.com/deviceviewer)
4.2.1 Nameplates
Nameplates on extension cable
Dat./Insp.:
FW.Ver.:
Dev.Rev.:
Cal./Adj.
Mat: L=
Ser. no.:
Ext. order code:
Waterpilot FMX11
Made in Germany, D-79689 Maulburg
p
2
17
16
15
14
3
5
8
1112
13
A0040852
2 Extended order number (complete)
3 Serial number (for clear identification)
5 FMX11 connection diagram
8 Length of extension cable
11 Materials in contact with process
12 Test date (optional)
13 Software version/device version
14 Supply voltage
15 Output signal
16 Set measuring range
17 Nominal measuring range
4.3 Storage and transport
4.3.1 Storage conditions
Use original packaging.
Store the measuring device in clean and dry conditions and protect from damage caused by
shocks (EN 837-2).

Waterpilot FMX11 Incoming acceptance and product identification
Endress+Hauser 11
Storage temperature range
FMX11
–10 to +70 °C (+14 to +158 °F)
Terminal box
–40 to +80 °C (–40 to +176 °F)
4.3.2 Transporting the product to the measuring point
LWARNING
Incorrect transport!
Device or cable may become damaged, and there is a risk of injury!
‣Transport measuring device in the original packaging.

Installation Waterpilot FMX11
12 Endress+Hauser
5 Installation
5.1 Installation conditions
• Sideways movement of the level probe can result in measuring errors. Install the probe
at a point free from flow and turbulence or use a guiding tube. The internal diameter of
the guiding tube should be at least 1 mm (0.04 in) greater than the outer diameter of
the FMX11.
• To avoid mechanical damage to the measuring cell, the device is equipped with a
protection cap.
• The cable must end in a dry room or a suitable terminal box. The terminal box from
Endress+Hauser provides humidity and climatic protection and is suitable for installation
outdoors.
• Cable length tolerance: ±< 50 mm (1.97 in)
• Endress+Hauser recommends using twisted, shielded cable.
• The length of the extension cable depends on the intended level zero point. The height
of the protective cap must be taken into consideration when designing the layout of the
measuring point. The level zero point (E) corresponds to the position of the process
isolating diaphragm. Level zero point = E; tip of probe = L (see the following diagram).
L
E
A0043690

Waterpilot FMX11 Installation
Endress+Hauser 13
5.2 Mounting the measuring device
2
3
4
5
6
7
1
A0040853
1 Terminal box can be ordered separately
2 Bending radius of extension cable
3 Suspension clamp can be ordered as an accessory
4 Extension cable, cable length
5 Guiding tube
6 Waterpilot FMX11
7 Protection cap
5.2.1 Mounting the Waterpilot with a mounting clamp
1
2
3
A0040921
1 Extension cable
2 Suspension clamp
3 Clamping jaws
Mounting the suspension clamp
1. Mount the suspension clamp (item 2). Take the weight of the extension cable (item
1) into account.
2. Push up the clamping jaws (item 3). Place the extension cable (item 1) between the
clamping jaws as shown in the graphic.
3. Hold the extension cable (item 1) in position and push the clamping jaws (item 3)
back down. Tap the clamping jaws gently from above to fix them in place.

Installation Waterpilot FMX11
14 Endress+Hauser
5.2.2 Mounting the terminal box
The optional terminal box is mounted using four screws (M4).
5.3 Post-installation check
• Is the device undamaged (visual inspection)?
• Does the device comply with the measuring point specifications?
• Process temperature
• Process pressure
• Ambient temperature
• Measuring range
• Check that all screws are firmly seated.

Waterpilot FMX11 Electrical connection
Endress+Hauser 15
6 Electrical connection
6.1 Connection conditions
LWARNING
Supply voltage might be connected!
Risk of electric shock!
‣Switch off supply voltage.
• The supply voltage must match the supply voltage specified on the nameplate.
• The cable must end in a dry room or a suitable terminal box. The terminal box (IP66/
IP67) with GORE-TEX® filter from Endress+Hauser is suitable for outdoor installation.
The terminal box can be ordered separately as an accessory (order number: 52006152).
• Connect the device in accordance with the following diagrams. Reverse polarity
protection is integrated in the Waterpilot FMX11. Changing the polarities will not result
in damage to the device. The device is not operational.
• A suitable circuit breaker should be provided for the device in accordance with IEC/EN
61010.
RD
GNYE
BK
)
)
2
3
1
4
A0040869
1 8 to 28 VDC
2 4 to 20 mA
3 Resistance (RL)
4 Waterpilot FMX11
6.2 Connecting the measuring device
6.2.1 Supply voltage
8 to 28 VDC
6.2.2 Cable specification
Connecting cable
Endress+Hauser recommends using shielded, twisted-pair two-wire cables.
• Commercially available instrument cable
• Terminals, terminal box: 0.08 to 2.5 mm2 (28 to 14 AWG)

Electrical connection Waterpilot FMX11
16 Endress+Hauser
Extension cable
• Total outer diameter: 6 mm (0.24 in) ±0.2 mm (0.01 in)
• PA pressure compensation tube:
- Outer diameter 2.5 mm (0.1 in)
- Internal diameter 1.5 mm (0.06 in)
- Pressure compensation element outer diameter 6 mm (0.24 in)
The extension cables are shielded.
Cross-section
2 x 0.22 mm2 + pressure compensation tube
Cable resistance
Per wire: ≤0.09 Ω/m
6.2.3 Power consumption
≤ 0.62 W at 28 VDC
6.2.4 Current consumption
Max. current consumption: ≤ 22 mA
Min. current consumption: ≥ 2 mA
6.2.5 Maximum load
The maximum load resistance depends on the supply voltage (U) and must be determined
individually for each current loop, see formula and diagram. 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. Load
diagram for an approximate calculation of the load resistance. Additional resistances, such
as the resistance of the extension cable (per wire ≤0.09 Ω/m), have to be subtracted from
the value calculated as shown in the equation.
RLmax – 2 × 0.09 × L – RZU
U – 8 V
22 mA
W
m
£
318
545
91
909
28
15 20
810
773
25
R
[ ]W
U
[V]
A0043461
RLmaxMax. load resistance [Ω]
Radd Additional resistances such as resistance of evaluating device and/or display unit, cable resistance [Ω]
U Supply voltage [V]
L Basic length, extension cable [m]

Waterpilot FMX11 Operation options
Endress+Hauser 17
6.2.6 Overvoltage protection
To protect the Waterpilot from large interference voltage peaks, Endress+Hauser
recommends installing overvoltage protection upstream and downstream of the display
and/or evaluation unit.
• Integrated overvoltage protection to EN 61000-4-5 (2 kV asymmetrical)
• Install overvoltage protection ≥ 1.0 kV, external if necessary
4
232
1
A0040871
1 Waterpilot FMX11
2 Overvoltage protection (OVP), e.g., HAW from Endress+Hauser
3 Power supply, display and evaluation unit with one input for 4 to 20 mA
4 Power supply
6.3 Post-connection check
• Are the device or cables free from damage (visual check)?
• Do the cables comply with the requirements?
• Do the cables have adequate strain relief?
• Are all the cable glands installed, tightened and sealed?
• Does the supply voltage match the information on the nameplate?
• Is the terminal assignment correct?
7 Operation options
Endress+Hauser offers comprehensive measuring point solutions with display and/or
evaluation units for the Waterpilot FMX11.
Your Endress+Hauser service organization would be glad to be of service if you have
any other questions. Contact addresses are available at: www.endress.com/worldwide
8 Diagnostics and troubleshooting
8.1 General troubleshooting
8.1.1 Device does not respond
• Does the supply voltage match that specified on the nameplate?
Apply correct voltage
• Is the polarity of the supply voltage wrong?
Correct the polarity
• Are the connecting cables in contact with the terminals?
Ensure electrical contact between the cable and the terminal
8.1.2 Output current < 3.6 mA
• Is the signal line wired correctly?
Check wiring
• Is the electronics unit defective?
Replace electronics

Maintenance Waterpilot FMX11
18 Endress+Hauser
9 Maintenance
• Terminal box: Keep the GORE-TEX® filter free from contamination
• FMX11 extension cable: Keep the Teflon filter in the pressure compensation tube free
from contamination
• Check the process isolating diaphragm for buildup at suitable intervals.
9.1 Maintenance tasks
9.1.1 Exterior cleaning
Please note the following points when cleaning the device:
• The cleaning agents used should not corrode the surface and the seals.
• Mechanical damage to the process isolating diaphragm, e.g. due to pointed objects, must
be avoided.
• Only clean the terminal box with water or with a cloth dampened with very diluted
ethanol.

Waterpilot FMX11 Repair
Endress+Hauser 19
10 Repair
10.1 General information
10.1.1 Repair concept
Repairs are not envisaged for the device.
10.2 Spare parts
All the spare parts for the measuring device, along with the order code, are listed and can
be ordered in W@M Device Viewer (www.endress.com/deviceviewer). If available, users
can also download the associated Installation Instructions.
Measuring device serial number:
Is located on the nameplate of the device.
10.3 Return
The measuring device must be returned if the wrong device has been ordered or delivered.
As an ISO-certified company and also due to legal regulations, Endress+Hauser is obliged
to follow certain procedures when handling any returned products that have been 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
‣Select country.
 The website of the responsible sales organization opens with all of the relevant
information relating to returns.
1. If the desired country is not listed:
Click on the "Choose your location" link.
 An overview of Endress+Hauser sales organizations and representatives opens.
2. Contact your Endress+Hauser sales office or representative.
10.4 Disposal
When disposing, separate and recycle the device components based on the materials.

Accessories Waterpilot FMX11
20 Endress+Hauser
11 Accessories
11.1 Device-specific accessories
11.1.1 Suspension clamp
A0030950
Order number: 52006151
11.1.2 Terminal box
A0030967
Order number: 52006152