Endress+Hauser Soliwave FDR16 User manual

BA01901F/97/EN/03.22-00
71566611
2022-05-01
Products Solutions Services
Operating Instructions
Soliwave FDR16/FQR16
Microwave barrier

2
Soliwave FDR16/FQR16
Endress+Hauser
Liquiphant FTL41
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

Soliwave FDR16/FQR16
Endress+Hauser 3
Table of contents
1 About this document � � � � � � � � � � � � � � � 5
1.1 Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1.1 Safety symbols . . . . . . . . . . . . . . . . . . . . . . .5
1.1.2 Electrical symbols . . . . . . . . . . . . . . . . . . . .5
1.1.3 Symbols for certain types of information 5
1.1.4 Symbols in graphics . . . . . . . . . . . . . . . . . .5
1.1.5 Device-specic symbols . . . . . . . . . . . . . . .5
2 Basic safety instructions � � � � � � � � � � � � � 6
2.1 Requirements for the personnel . . . . . . . . . . . . . . .6
2.2 Designated use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2.1 Incorrect use. . . . . . . . . . . . . . . . . . . . . . . . .6
2.3 Workplace safety. . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.4 Operational safety. . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.5 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3 Product description � � � � � � � � � � � � � � � � 7
3.1 Product design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4 Incoming acceptance and product
identication � � � � � � � � � � � � � � � � � � � � 8
4.1 Incoming acceptance. . . . . . . . . . . . . . . . . . . . . . . . .8
4.2 Product identication . . . . . . . . . . . . . . . . . . . . . . . .8
4.2.1 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.2.2 Manufacturer address. . . . . . . . . . . . . . . . .9
4.3 Storage and transport. . . . . . . . . . . . . . . . . . . . . . . .9
4.3.1 Storage conditions. . . . . . . . . . . . . . . . . . . .9
4.3.2 Transporting the device . . . . . . . . . . . . . . .9
5 Mounting � � � � � � � � � � � � � � � � � � � � � � 9
5.1 Mounting conditions. . . . . . . . . . . . . . . . . . . . . . . . .9
5.1.1 Mounting position. . . . . . . . . . . . . . . . . . . .9
5.1.2 Optimization of the signal quality. . . . . .10
5.1.3 Parallel operation . . . . . . . . . . . . . . . . . . .10
5.1.4 Reector operation . . . . . . . . . . . . . . . . . .11
5.1.5 Operating temperature range . . . . . . . . .11
5.1.6 Mounting dimensions. . . . . . . . . . . . . . . .11
5.2 Mounting the device . . . . . . . . . . . . . . . . . . . . . . . .12
5.2.1 Mounting in contact with the process . .12
5.2.2 Mounting without contact with
the process . . . . . . . . . . . . . . . . . . . . . . . . .14
5.3 Post-installation check . . . . . . . . . . . . . . . . . . . . . .19
6 Electrical connection � � � � � � � � � � � � � � 19
6.1 Connection requirements. . . . . . . . . . . . . . . . . . . .19
6.1.1 Connect potential equalization . . . . . . . .19
6.1.2 Connecting cable requirements. . . . . . . .19
6.2 Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.3 Connecting the device. . . . . . . . . . . . . . . . . . . . . . .20
6.3.1 Pin assignment . . . . . . . . . . . . . . . . . . . . .20
6.4 Post-connection check . . . . . . . . . . . . . . . . . . . . . .21
7 Operation options � � � � � � � � � � � � � � � � 21
7.1 Light signals (LEDs) . . . . . . . . . . . . . . . . . . . . . . . .22
7.2 Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
7.2.1 Point level detection . . . . . . . . . . . . . . . . .22
7.2.2 Error case . . . . . . . . . . . . . . . . . . . . . . . . . .22
7.3 On-site operation . . . . . . . . . . . . . . . . . . . . . . . . . .23
Table of contents
7.4 Parameterization. . . . . . . . . . . . . . . . . . . . . . . . . . .23
7.4.1 Activation parameterization mode . . . . .23
7.4.2 Automatic adjustment . . . . . . . . . . . . . . .23
7.4.3 Set process window. . . . . . . . . . . . . . . . . .24
7.4.4 Set switching delay . . . . . . . . . . . . . . . . . .24
7.4.5 Reset to factory settings . . . . . . . . . . . . . .25
7.5 Function test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
8 Commissioning � � � � � � � � � � � � � � � � � � 25
8.1 Function check. . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
8.2 Powering up the measuring device . . . . . . . . . . . .25
9 Diagnostics and troubleshooting� � � � � � � � 26
10 Maintenance � � � � � � � � � � � � � � � � � � � 26
10.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
11 Repair � � � � � � � � � � � � � � � � � � � � � � � 26
11.1 Return. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
11.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
12 Accessories � � � � � � � � � � � � � � � � � � � � 27
12.1 Device specic accessories . . . . . . . . . . . . . . . . . . .27
12.1.1 Prefabricated cables . . . . . . . . . . . . . . . . .27
12.1.2 Operating magnet . . . . . . . . . . . . . . . . . . .29
12.2 Mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . .29
12.3 Counternut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
12.4 Welding sleeve. . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
12.5 Weld-in adapter . . . . . . . . . . . . . . . . . . . . . . . . . . .30
12.6 Mounting ange . . . . . . . . . . . . . . . . . . . . . . . . . . .31
12.7 High pressure adapter. . . . . . . . . . . . . . . . . . . . . . .32
12.8 Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
12.9 Sight glass tting. . . . . . . . . . . . . . . . . . . . . . . . . . .33
12.10 Insertion adapter. . . . . . . . . . . . . . . . . . . . . . . . . . .35
12.11 Weld-in nozzle. . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
12.12 High temperature adapter . . . . . . . . . . . . . . . . . . .37
13 Technical data � � � � � � � � � � � � � � � � � � 37
13.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
13.1.1 Measured variable. . . . . . . . . . . . . . . . . . .37
13.1.2 Measuring range (Detection range) . . . .37
13.1.3 Operating frequency . . . . . . . . . . . . . . . . .37
13.1.4 Transmitting power. . . . . . . . . . . . . . . . . .38
13.1.5 Antenna opening angle (3 dB) . . . . . . . .38
13.2 Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
13.2.1 Output signal . . . . . . . . . . . . . . . . . . . . . . .38
13.2.2 Ex connection data . . . . . . . . . . . . . . . . . .38
13.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
13.3.1 Supply voltage . . . . . . . . . . . . . . . . . . . . . .38
13.3.2 Power consumption. . . . . . . . . . . . . . . . . .38
13.3.3 Current consumption . . . . . . . . . . . . . . . .38
13.3.4 Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
13.4 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
13.4.1 Ambient temperature . . . . . . . . . . . . . . . .38
13.4.2 Storage temperature . . . . . . . . . . . . . . . . .38
13.4.3 Degree of protection . . . . . . . . . . . . . . . . .39
13.4.4 Vibration resistance . . . . . . . . . . . . . . . . .39
13.4.5 Shock resistance . . . . . . . . . . . . . . . . . . . .39

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Soliwave FDR16/FQR16
Endress+Hauser
Table of contents
13.4.6 Electromagnetic compatibility. . . . . . . . .39
13.5 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
13.5.1 Process temperature . . . . . . . . . . . . . . . . .39
13.5.2 Process pressure . . . . . . . . . . . . . . . . . . . .39
13.6 Additional technical data . . . . . . . . . . . . . . . . . . . .39

Soliwave FDR16/FQR16
Endress+Hauser 5
About this document
1 About this document
1�1 Symbols
1�1�1 Safety symbols
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result
in serious or fatal injury.
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
This symbol contains information on procedures and other facts which do not result in
personal injury.
1�1�2 Electrical symbols
Ground connection
Grounded clamp, which is grounded via a grounding system.
1�1�3 Symbols for certain types of information
Permitted
Procedures, processes or actions that are permitted.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information
 Reference to documentation
 Reference to another section
 Reference to graphic
, , Series of steps
1�1�4 Symbols in graphics
A, B, C ��� View
1, 2, 3 ... Item numbers
-
Hazardous area
.
Safe area (non-hazardous area)
1.1.5 Device-specic symbols
LED on
Indicates an illuminated LED
LED o
Indicates an non-illuminated LED

6
Soliwave FDR16/FQR16
Endress+Hauser
Basic safety instructions
LED undened
Indicates an undened or arbitrary light state of the LED
Free path
Indicates the free path between FDR and FQR
Covered path
Indicates the covered path between FDR and FQR
2 Basic safety instructions
2�1 Requirements for the personnel
The personnel must fulll the following requirements to carry out the necessary tasks,
e. g., commissioning and maintenance:
‣ Trained, qualied specialists must have a relevant qualication for the specic function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Must have read and understood the instructions in the manual and supplementary
documentation
‣Follow instructions and comply with conditions
2�2 Designated use
Use the microwave barrier only for level detection and counting and control purposes.
Improper use can pose hazards. Ensure that the measuring device is free of defects while
it is in operation.
• Use the measuring device only for media to which the process-wetted materials have an
adequate level of resistance
• Do not exceed or drop below the limit values for the measuring device
 TI01564F
2�2�1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Residual risks
Due to heat transfer from the process, the temperature of the electronics housing and the
assemblies contained therein may rise to 70 °C (158 °F) during operation.
Danger of burns from contact with surfaces!
‣If necessary, ensure protection against contact to prevent burns.
2�3 Workplace safety
For work on and with the device:
‣Wear the required protective equipment according to federal/national regulations.
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.

Soliwave FDR16/FQR16
Endress+Hauser 7
Product description
Conversions to the device
Unauthorized modications to the device are not permitted and can lead to unforeseeable
dangers.
‣ If, despite this, modications are required, consult with Endress+Hauser.
Repair
Repair is only possible by the manufacturer.
2.5 Product safety
The devices of the microwave barrier are designed in accordance with good engineering
practice to meet state-of-the-art safety requirements, has been tested, and le the factory
in a condition in which it is safe to operate.
They meet general safety standards and legal requirements. They also complies with the
EU directives listed in the device-specic EU Declaration of Conformity. Endress+Hauser
conrms this by axing the CE mark to the devices.
3 Product description
Ultra compact microwave barrier for non-contact point level detection of bulk solids and
liquids as well as counting piece goods and object detection
3�1 Product design
A→1 2
FQR16 FDR16
0000000004
1 Product design
A Supply and signal circuit
1 Connection cable M12 socket
2 Connection cable M12 socket/plug
Use in potentially explosive atmospheres → Observe XA!

8
Soliwave FDR16/FQR16
Endress+Hauser
Incoming acceptance and product identication
4 Incoming acceptance and
product identication
4�1 Incoming acceptance
Check the following during goods acceptance:
Are the order codes on the delivery note and the product sticker identical?
Are the goods undamaged?
Do the nameplate data match the ordering information on the delivery note?
 If required (see nameplate): Are the Safety Instructions, e. g. XA, provided?
Is the device properly secured?
If one of these conditions is not met, please contact the manufacturer's sales oce.
4�2 Product identication
The measuring device can be identied in the following ways:
• Nameplate data
• Extended 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 of the information on the measuring device is displayed along with an
overview of the scope of technical documentation provided
• Enter the serial number on the nameplate into the Endress+Hauser Operations App or
use the Endress+Hauser Operations App to scan the 2-D matrix code (QR Code) on the
nameplate
4�2�1 Nameplate
Soliwave 1
Order code:
2
Ext. ord. cd.:
Ser.-No.:
3

3
4
2 Nameplate data
1 Manufacturer address
2 Order number, external order code, serial number
3 Technical data
4 Approval-specific information

Soliwave FDR16/FQR16
Endress+Hauser 9
Mounting
4�2�2 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
4�3 Storage and transport
4�3�1 Storage conditions
Use original packaging.
Storage temperature
→ 38
4�3�2 Transporting the device
Transport the device to the measuring point in the original packaging.
5 Mounting
5.1 Mounting conditions
Minimization of application-specic inuences
‣ Vibration inuence → 39
5.1.1 Mounting position
The installation position is arbitrary under consideration of the following conditions:
• Microwaves are polarized: Do not rotate FDR16 and FQR16 against each other around
their longitudinal axis (except by 180° or for detection ranges smaller than 500 mm
(19.7 in)).
• The position of the potential equalization terminal can be used to check the alignment;
it must point in the same direction for both devices (or be rotated by 90° for detection
ranges smaller than 500 mm (19.7 in)).
β
BA
α
0000000005
3 Mounting position
A Detection range 0.5 to 20 m (19.7 to 787.4 in)
B Detection range 0.12 to 0.5 m (4.7 to 19.7 in)
α Antenna opening angle approx. 12°
β 90°

10
Soliwave FDR16/FQR16
Endress+Hauser
Mounting
5.1.2 Optimization of the signal quality
If the microwave barrier devices are installed in front of microwave-permeable windows
or plugs, it is possible to optimize the signal quality by moving FQR16 and FDR16 on their
longitudinal axis aer an automatic adjustment has been performed. → 23
a
b
FQR16 FDR16
0000000003
4 Optimization of the signal quality
Loosen device 1 (here FQR16) and move it slowly by a= ±10 mm (±0.4 in) until a
signal maximum is reached (max. ashing or permanently illuminated LED signal
strength, x device again. → 22
Then loosen device 2 (here FDR16) and move it slowly by b= ±10 mm (±0.4 in) until
a signal maximum is reached, x the device again.
Position change performed (here horizontal shi)
‣ Perform automatic adjustment again
5.1.3 Parallel operation
Mutual interference is to be avoided�
‣Rotate every second microwave barrier by 90°.
αα
A
D
0000000009
5 Parallel operation
A Distance between microwave barriers
D Detection range
α 90°
• Recommendation under ideal conditions: A ≥ D/2
• Applications with stronger reections: Aincrease additionally

Soliwave FDR16/FQR16
Endress+Hauser 11
Mounting
5.1.4 Reector operation
Direct comparison of FQR16 and FDR16 not possible�
Deflect microwave beam via plane metal mirrors (reflectors).
1 1 1
α
α
α
α
0000000007
6 Reflector operation
1 Reflector
α Angle of entrance = angle of emission
• Arrange devices symmetrically to the reector (entrance angle = exit angle).
• Range reduction per reector: 10 %
5.1.5 Operating temperature range
→ 38
5.1.6 Mounting dimensions
20 (0.79) 55 (2.17)40 (1.57)
28 (1.10)
A
70  (2.76)
90 (3.54)
60

(2.36)
110 (4.33)
110 (4.33)
G1
G1½
1½NPT
0000000012
7 Mounting dimensions. Unit of measurement mm (in)
A 2³⁄₈" (60.325 mm / 2.375 in)

12
Soliwave FDR16/FQR16
Endress+Hauser
Mounting
5.2 Mounting the device
5.2.1 Mounting in contact with the process
The FDR16/FQR16 is screwed directly into the process (for example existing threads or
vessel sleeves) with its process connection (standard threads G 1 and G 1½ according to
ISO 228-1 or 1½ NPT according to ANSI/ASME B1.20.1).
Direct mounting with threaded connection
The simplest mounting method is by screwing into the process wall. To do this, a corre-
sponding internal thread (G 1, G 1½ or 1½ NPT) must be available in the process.
AB
0000000020
8 Mounting with connection thread
• If the process connection is not screwed far enough into the process wall, there is a risk
that material will accumulate in front of the device (A), thereby damping the microwave
signal.
• If, on the other hand, the process connection is screwed too far into the process (B),
there is a risk of damage occurring as a result of large product items falling.
Mounting with connection thread
A B
2 ³⁄₈"55
2
0000000061
9 Mounting with connection thread
A 1½ NPT
B G 1 / G 1½

Soliwave FDR16/FQR16
Endress+Hauser 13
Mounting
Screw in conical (A) or cylindrical (B) connection thread.
Align the housing of the electronics (potential equalization terminal of both devices
must point in the same direction).
Fix the housing in place.
Seal: to be provided by the customer
Mounting alternatives
A B
1 2
0000000014
10 Mounting alternatives
1 Welding sleeve G 1
2 Counternut G 1½
When using the G 1½ process connection (standard thread according to ISO 228-1,
hexagon SW55) and using the optional counternut, the device can be mounted ush
particularly easily, as it is a cylindrical thread. → 29
Mounting with welding sleeve G 1 (A)
‣Screw in the device as far as it will go.
Mounting in existing thread G 1½ (B)
‣ Screw in the device ush with the inner wall and lock it with a G 1½ counternut.
• Seal: to be provided by the customer
• Suitable welding sleeve and counternut
→ 29 and order structure option "accessory enclosed"

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Soliwave FDR16/FQR16
Endress+Hauser
Mounting
5.2.2 Mounting without contact with the process
Mounting in front of microwave-permeable plugs
• Observe maximum temperature T → 38
• Risk of condensate formation on the inner process wall → plug 2
• A minimize → minimize signal attenuation
• Suitable plug of type FAR54 → 33
D
1 2
A
T
0000000021
11 Mounting in front of microwave-impermeable process wall
1 Microwave-permeable plug
2 Microwave-permeable plug in case of condensate formation on the inner process wall
Mounting in front of microwave permeable sight glass tting
• Observe maximum temperature → 38
• Suitable sight glass ttings → 33
D
1 2
A
0000000023
12 Mounting in front of microwave permeable sight glass fitting
1 Sight glass fitting for processes up to 10 bar (145 psi)
2 Sight glass fitting for unpressurized processes

Soliwave FDR16/FQR16
Endress+Hauser 15
Mounting
Avoid material accumulation in front of the sight glass (risk of incorrect measure-
ments).
0000000024
13 Impermissible mounting with the risk of material accumulation
Mounting on process nozzle
1 2 3 4
0000000027
14 Mounting on process nozzle
1 Mounting flange
2 Process nozzle
3 Plug
4 Process insulation
• Suitable mounting anges → 31
• Suitable plugs → 33
• Suitable process nozzle of type FAR50 → 36

16
Soliwave FDR16/FQR16
Endress+Hauser
Mounting
In case of risk of buildup
‣ Avoid mounting types that favor this process
A
B
0000000028
15 Mounting with risk of buildup
• Mounting of process nozzle with inclined process wall (A)
• Mounting in case of risk of material accumulation on inner process wall (B)
If there is a risk of condensation forming between the device and the plug
‣Use of process connection type FAR50 with integrated venting element
→ 36

Soliwave FDR16/FQR16
Endress+Hauser 17
Mounting
Mounting on process nozzle
1 2 3 4
0000000029
16 Mounting with insertion adapter FAR51
1 Insertion adapter
2 Customer-supplied gasket
3 Customer-supplied installation material
4 Process nozzle
Suitable insertion adapter of type FAR51 → 35
Mounting with high pressure adapter
‣Applications with process pressure up to 21 bar (305 psi)
1 2
0000000026
17 Mounting with high pressure adapter
1 High pressure adapter
2 Integrated venting element
Suitable high pressure adapter → 32

18
Soliwave FDR16/FQR16
Endress+Hauser
Mounting
Mounting with high temperature adapter and extensions
‣ Applications with process temperature +60 to +450 °C (+140 to +842 °F)
• Process pressure 0.8 to 5.1 bar (12 to 74 psi) absolute
• Observe maximum temperature T → 38
‣ Exceeding leads to destruction!
• Lmust be selected depending on the process and ambient temperatures.
• Suitable high temperature adapter and extension → 37
1 2 3 4 5
L T
0000000031
18 Mounting with high temperature adapter and extensions
1 Process
2 Wall
3 Insulation
4 High temperature adapter
5 Length extensions (optional)
Mounting for open processes
1
2
0000000019
19 Mounting for open processes
1 Mounting bracket
2 Counternut
Suitable mounting bracket an counternut → 29

Soliwave FDR16/FQR16
Endress+Hauser 19
Electrical connection
5.3 Post-installation check
Is the device undamaged (visual inspection)?
 Does the device conform to the measuring point specications?
For example:
• Process temperature
• Process pressure
• Ambient temperature
Are the measuring point number and labeling correct (visual inspection)?
Is the device adequately protected against precipitation and direct sunlight?
Is the device properly secured?
6 Electrical connection
For a device for the hazardous area:
Observe the instructions in the Ex documentation (XA).
6�1 Connection requirements
6�1�1 Connect potential equalization
The potential equalization for the device must be integrated into the existing potential
equalization on site.
Requirements:
• The potential equalization must be connected to the external ground terminal on the
device.
• For optimum electromagnetic compatibility, keep the potential equalization line as short
as possible.
• The recommended cable cross-section is 2.5 mm2.
• The potential equalization of the FDR16/FQR16 must be included in the local potential
equalization.
6�1�2 Connecting cable requirements
The connections cables with M12A connector must be full the following requirements:
• Permissible temperature range → 38
• Protection → 39
• Connection cable FQR16 max. 2.5 Ω/core
• Connecting cable FDR16 with FQR16 max. 5 Ω/core
• Total capacity < 100 nF
Suitable connection cable
→ 27 and order structure option "accessory enclosed"
6�2 Output signal
Safety-related circuit
MIN or MAX point level: The electric switch opens when the point level is reached, in case
of malfunctions or power failure.

20
Soliwave FDR16/FQR16
Endress+Hauser
Electrical connection
• Maximum point level detection (MAX): e.g. for overll protection
The microwave barrier keeps the electrical switch closed as long as the beam path is
free.
• Minimum point level detection (MIN): e.g. for no-load protection
The microwave barrier keeps the electrical switch closed as long as the beam path is
covered.
Function test
With a two-channel evaluation, a function monitoring of the microwave barrier can be
realized in addition to the point level detection.
When both outputs are connected, the MIN and MAX outputs assume opposite states
(antivalence) in fault-free operation. In the event of a fault or a line break, both outputs
drop out.
6�3 Connecting the device
A→1 2
FQR16 FDR16
0000000004
20 Measuring system
A Supply and signal circuit
1 Connection cable M12 socket
2 Connection cable M12 socket/plug
Power supply, Output signal
→ 38
6�3�1 Pin assignment
FQR16
K1 K2
3 2
4 1
L- L+
0000000006
21 Pin assignment for supply voltage and output circuit
Kx External load
The devices are internally equipped with a ne-wire fuse 500 mA (slow-blow) accor-
ding to IEC 60127-2, this cannot be changed by the user in the event of a fault.