Knick SensoGate WA 133 Series User manual

The Art of Measuring.
Latest Product Information: www.knick.de
SensoGate WA 133
Retractable Fitting with PTFE Process Adaptation
User Manual

2Table of Contents
SensoGate WA 133
Safety Information ...........................................................................................................................3
Symbols and Markings..................................................................................................................................................................5
List of Currently Known Hazardous Substances ..................................................................................................................6
Intended Use..................................................................................................................................... 7
Rating Plates .....................................................................................................................................................................................8
Package Contents ...........................................................................................................................................................................8
SensoGate WA 133 Product Code ...................................................................................................9
Function Description......................................................................................................................10
Control Air and Feedback.......................................................................................................................................................... 10
Overview of Retractable Fitting....................................................................................................11
Modular Design: Drive Unit, Immersion Tube, Process Adaptation........................................................................... 12
Assembly.........................................................................................................................................14
Mounting the Retractable Fitting........................................................................................................................................... 14
Installing the Outlet and Inlet Hoses ................................................................................................................................... 14
Installing the ZU 0859 Electrical Limit Switch with Plug-In Adapter (Optional) ................................................... 14
SERVICE Position ............................................................................................................................15
PROCESS Position...........................................................................................................................16
Installing and Removing a Sensor ................................................................................................17
Sensors with Solid Electrolyte.......................................................................................................18
Short Immersion Depth............................................................................................................................................................. 18
Installing the Sensor ............................................................................................................................................................... 18
Removing the Sensor ............................................................................................................................................................. 19
Long Immersion Depth.............................................................................................................................................................. 20
Installing the Sensor ............................................................................................................................................................... 20
Removing the Sensor ............................................................................................................................................................. 21
Sensors with Liquid Electrolyte.....................................................................................................22
Installing the Sensor ............................................................................................................................................................... 22
Removing the Sensor ............................................................................................................................................................. 23
Drive Unit ........................................................................................................................................24
Removing the Drive Unit....................................................................................................................................................... 24
Installing the Drive Unit......................................................................................................................................................... 25
Immersion Tube ..............................................................................................................................26
Replacing the Immersion Tube ............................................................................................................................................... 26
Removing the Immersion Tube .......................................................................................................................................... 27
Installing the Immersion Tube ............................................................................................................................................ 28
Calibration Chamber......................................................................................................................29
Removing the Calibration Chamber ................................................................................................................................. 29
Installing the Calibration Chamber ................................................................................................................................... 30
Installation Dimensions.................................................................................................................31
Specifications..................................................................................................................................35
Maintenance ...................................................................................................................................36
Maintenance Intervals................................................................................................................................................................ 36
Servicing the Immersion Tube ................................................................................................................................................ 36
Servicing the Drive Unit............................................................................................................................................................. 37
Lubricants, O-Rings ..................................................................................................................................................................... 37
Selected Cleaning Agents for Specic Applications........................................................................................................ 37
Sealing Kits for Maintenance and Servicing....................................................................................................................... 38
Accessories / Spare Parts ...............................................................................................................39
Declaration of Contamination.......................................................................................................40
Index................................................................................................................................................41
Annotations ....................................................................................................................................43

3
Safety Information
SensoGate WA 133
!
NOTICE: Process-Related Risks!
Knick Elektronische Messgeräte GmbH & Co. KG assumes no liability for damages caused by
process-related risks known to the operator, which would in fact not permit the use of the
retractable fitting. Take account of the influences of humidity, ambient temperature, chemicals,
and corrosion on the safety functions and the operating time of the retractable fitting!
!
NOTICE: Operation With Chemically Aggressive Process or Cleaning Solutions Under
Pressure
When the retractable fitting is operated with chemically aggressive process or cleaning
solutions under pressure, it should be equipped with the ‘SensoLock‘ safety function.
!
CAUTION: Using Water from Drinking Water Pipes for the Water Connection!
Observe the general requirements of protection devices to prevent pollution of potable water
(EN 1717).
We recommend installing a check valve on the water inlet, e.g., on the water valve provided by
the customer or on the rinse connection of the retractable fitting (inlet to calibration chamber)
to prevent backflow of rinse or process medium or compressed air into the water pipe.
Suitable check valves made from different materials are available from Knick.

4Safety Information
SensoGate WA 133
Operation in Explosive Atmospheres
The SensoGate WA133-X is certified for operation in explosive atmospheres.
• EU-Type Examination Certificate KEMA04ATEX4035X
Exceeding the standard atmospheric conditions within the manufacturer’s specifications, such as ambient tem-
perature, process pressure and temperature, does not impair the durability of the retractable fittings.
Related certificates are included in the product’s scope of delivery and are available at www.knick.de in the cur-
rent version.
Observe all applicable local and national codes and standards for the installation of equipment in explosive at-
mospheres. For further guidance, consult the following:
• IEC60079-14
• EU directives 2014/34/EU and 1999/92/EC(ATEX)
Possible Ignition Hazards During Installation and Maintenance
To avoid mechanically generated sparks, handle the SensoGate WA133-X with care and apply suitable measures,
e.g., use covers and pads.
The metallic parts of the SensoGate WA133-X must be connected to the plant’s equipotential bonding using the
metallic process connection and the grounding connection provided for that purpose.
When components are replaced with genuine Knick spare parts made of other materials (e.g. O-rings), the infor-
mation given on the nameplate may deviate from the actual version of the SensoGate WA133-X. The operating
company must assess and document this deviation.
Electrostatic charging
The drive unit of specific versions of the SensoGate WA133-X contains housing components made of non-con-
ductive plastic. Due to their surface, the housing components may build up an electrostatic charge. To prevent
this charge from becoming an effective ignition source in Zone0, ensure that the following conditions are met:
• Highly efficient charge generating mechanisms are excluded
• Non-metallic components are cleaned with a moist cloth only
Mechanically generated sparks
Single impacts on metal parts or collisions between metal parts of the SensoGate WA133-X are not a potential
ignition source only if the following conditions are met:
• Possible impact velocity is less than 1 m/s
• Possible impact energy is less than 500 J
If these conditions cannot be ensured, the operating company must reassess single impacts on metal parts or
collisions between metal parts as potential sources of ignition. The operating company must implement suitable
risk minimization measures, e.g., by ensuring a non-explosive atmosphere.
Possible Ignition Hazards During Operation
When using non-water-based cleaning, rinsing, or calibration media with a low conductivity of less than 1nS/m,
electrostatic charging of internal, conductive components may occur. The operating company must assess the
associated risks and implement appropriate measures.
The sensors that are used must be approved for operation in hazardous locations. Further information can be
found in the sensor documentation.
Electrostatic charging
The wetted components of the SensoGate WA133-X process unit are made of non-conductive PTFE plastic. The
components can build up an electrostatic charge. To prevent this charge from becoming an effective ignition
source, ensure that the following conditions are met:
• Efficient charge generating mechanisms are excluded
• Process media are grounded and have a minimum conductivity of 10 nS/cm
If these conditions cannot be ensured, operation in Zone0 and Zone1 is not permitted.

5
Symbols and Markings
Symbol Meaning
Compressed air: 4 to 7 bar
Rinsing water: max. 7 bar
Made in Germany
-10 to 70 °C
probe / Drive unit
KEMA 07ATEX 0065
No self-heating For temp specs see manual
14163 Berlin 66
IP
SensoGate®
4 to 7 bar
max. 7 bar
Tamb -10 to 70 °C
Drive unit
0044
Made in Germany
Made in Germany
For Ex specs see drive unit KEMA 07 ATEX 0065
SensoGate®
Type
Type
No.
No.
Insertion fitting
Insertion fitting
0044
CE marking with number of the notied body for the EU Type Examination
Certicate
4 to 7 bar
Rinsing water: max. 7 bar
Made in Germany
-10 to 70 °C
probe / Drive unit
No self-heating For temp specs see manual
14163 Berlin 66
IP
SensoGate®
4 to 7 bar
max. 7 bar
Tamb -10 to 70 °C
Drive unit
0044
Made in Germany
Made in Germany
For Ex specs see drive unit KEMA 07 ATEX 0065
SensoGate®
Type
Type
No.
No.
Insertion fitting
Insertion fitting
0044
ATEX marking for the operation of equipment in hazardous locations
with device classication (see Specications)
!
Do not open the device! Read this user manual, observe the Specications,
and follow the safety instructions.
!
Observe the safety precautions given in the user manual!
4 to 7 bar
Rinsing water: max. 7 bar
Made in Germany
No self-heating For temp specs see manual
14163 Berlin 66
IP
SensoGate®
4 to 7 bar
max. 7 bar
70 °C
0044
Made in Germany
For Ex specs see drive unit KEMA 07 ATEX 0065
SensoGate®
Type
Type
No.
No.
Insertion fitting
0044
Ingress protection of the housing against dust and humidity
Outlet symbol
Inlet symbol
Symbol for rotating the retractable tting to PROCESS position
Symbol for rotating the retractable tting to SERVICE position
P
Symbol for the connection to PROCESS control air
S
Symbol for the connection to SERVICE control air
P
Symbol for the connection of the electrical limit switch PROCESS
S
Symbol for the connection of the electrical limit switch SERVICE
Tamb Ambient temperature
The retractable fitting has been developed and manufactured in compliance with the applicable
European directives and standards. Compliance with the European directives and standards for the
use in hazardous locations is confirmed by the EU Declaration of Conformity and the CE marking.
Safety Information
SensoGate WA 133

6Safety Information
SensoGate WA 133
List of currently known hazardous substances according to EN 626-1 that have been used with this
type of retractable fitting:
Hazardous substance Hazard Remark
Argon Asphyxiating -
Asbestos Fibrogenic -
Benzene Carcinogenic -
Hydrogen cyanide Blood poisoning Particularly hazardous in free form or
as vapor/smoke containing cyanide
Lead Blood poisoning -
Cadmium Lung irritant Particularly hazardous as smoke
Chlorine Lung irritant Particularly hazardous as gas
Chromium VI Carcinogenic -
Enzymes Immune-sensitizing -
Isocyanates Immune-sensitizing -
Fibrogenic -
Asphyxiating -
Rosin Immune-sensitizing Particularly hazardous as smoke
Methane Asphyxiating -
Mercury Blood poisoning -
Sulfur dioxide Lung irritant -
Silicon dioxide Fibrogenic Particularly hazardous in free or
crystalline form
Nitrogen Asphyxiating -
Carbon tetrachloride Blood poisoning -
Vinyl chloride monomer Carcinogenic -
List of Currently Known Hazardous Substances

7
Return of Products/Return Form
Please contact our Service Team before returning a defective device. Ship the cleaned device to
the address you have been given. If the device has been in contact with process fluids, it must be
decontaminated/disinfected before shipment. In that case, please attach a corresponding return
form, for the health and safety of our service personnel (see Declaration of Contamination).
Intended Use
SensoGate WA 133
Intended Use
The SensoGate WA 133 is a pneumatically operated retractable fitting. It allows sensors to be
immersed in and retracted from liquid media, e.g., for process analytics.
The SensoGate WA 133 retractable fitting allows:
• immersing and retracting the sensor under process pressure (retractable fitting)
• calibrating or adjusting the measuring system under process conditions
(pressure and temperature)
• cleaning the sensor in the running process
• replacing the sensor in the running process (in Service position)
• variable process adaptation by the customer
The retractable fitting is suitable for installing the following sensors:
• sensor with solid electrolyte, 225 mm long, 12 mm diameter and
PG 13.5 thread
• sensor with liquid electrolyte, 250 mm long, 12 mm diameter
!
NOTICE: Safe Use of the Retractable Fitting!
If you are not sure whether the retractable fitting can be safely used for your intended
application, contact Knick!
To ensure safe use of the equipment, you must observe the temperature and pressure ranges
given in the Specications of this user manual.

8Intended Use
SensoGate WA 133
Rating Plates
Package Contents
Check the shipment for transport damage and completeness.
The package should contain:
• Retractable fitting
• Outlet and inlet hose
• Documentation
• EU Declaration of Conformity (optional) for intended use in hazardous locations
Trademarks
The following trademarks are used in this manual without further marking:
SensoGate®, Unical®, Uniclean®, Protos®
are registered trademarks of Knick Elektronische Messgeräte GmbH & Co. KG, Germany
Drive
Process
SensoGate® WA 133-X
Drive
Process
SensoGate® WA 133-N
66
IP
Max. pressure
Temperature range
14163 Berlin Made in Germany
SensoGate ®
Retractable Fitting / Drive Unit
Type
No.
14163 Berlin Made in Germany
SensoGate®
Type
No.
Process Unit
66
IP
Max. pressure
Temperature range
14163 Berlin Made in Germany
Sensogate ®
Retractable Fitting / Drive Unit
Type
No.
0044
KEMA 04 ATEX 4035X
II 1 G Ex h IIC T6 ... T3 Ga
II 1 D Ex h IIIC T80°C ... 140°C Da
No self-heating
Tamb
Special conditions
WARNING - Potential electrostatic charging hazard
-- see instruction
-10 ... 70 °C
Max. pressure
Temperature range
Type No.
See Drive Unit
for Ex marking
0044
SensoGate®
Process Unit
14163 Berlin
Made in Germany

9
SensoGate WA 133 Product Code
SensoGate WA 133
WA 133- -
Explosion
protection
For ATEX Zone 0 X
Without N
Sensor Sensor, Ø 12 mm, with PG 13.5 0
pH sensor, Ø 12mm, pressurized 1
Gasket
material
FKM A
EPDM B
EPDM - FDA E
FKM - FDA F
FFKM - FDA H
FFKM K
Process-wetted
materials
PTFE R
Process adaptation Loose flange, 1.457, PN10/16, DN 32 B 0
Loose flange, 1.457, PN10/16, DN 40 B A
Loose flange, 1.457, PN10/16, DN 50 B 1
Loose flange, 1.457, PN10/16, DN 65 B 2
Loose flange, 1.457, PN10/16, DN 80 B 3
Loose flange, 1.457, PN10/16, DN 100 B 4
Loose flange, ANSI 316, 150 lbs, 2" D 1
Loose flange, ANSI 316, 150 lbs, 2 ½" D 2
Loose flange, ANSI 316, 150 lbs, 3" D 3
Loose flange, ANSI 316, 150 lbs, 3 ½" D 4
Fitting, DIN 3237-2, PN16, DN 40 T A
Fitting, DIN 3237-2, PN16, DN 50 T 1
Loose flange, 1.4571, DN40, for plane flange, glass U A
Loose flange, 1.4571, DN50, for plane flange, glass U 1
Immersion depth Short A
Long B
Pneumatic
connection
Without electrical limit signal A
With electrical limit signal B
Rinse media
connection
Inlet with PFA hose coupling NW 4 / 6,
outlet with PFA hose coupling NW 6 / 8,
outlet hose made of PTFE, 3 m
3
SensoLock Without 0
With 1
Special version Without 0 0 0
Equipped with special grease
(provided by customer) 1
Customer-specific special datasheet F
Explosion protection, ATEX Zone 0 X
Suitable for sensors with a sensor diameter of 12mm 0
Gasket material: FKM A
Process-wetted materials made of PTFE R
Loose flange, PN10 / 16, DN 50 made of stainless steel 1.4571 B1
Long immersion depth B
Without electrical limit signal A
Inlet with PFA hose coupling NW 4 / 6, outlet with PFA hose coupling NW 6 / 8,
with outlet hose made of PTFE, 3 m
3
SensoLock 1
Customer-specific special datasheet F
Example of a possible order code: WA 133- X 0 A R B 1 B A 3 1 - 0 0 F

10 Function Description
SensoGate WA 133
The pneumatically operated retractable fitting can be moved to two positions:
• PROCESS position: The sensor is located in the process medium.
• SERVICE position: The sensor is located in the calibration chamber.
To replace the sensor, you must move the retractable fitting to the SERVICE position (see “SERVICE
Position” chapter). The same applies when shutting down the retractable fitting.
In SERVICE position the measuring system can be calibrated or adjusted or the sensor can be
cleaned. Through the rinse connection, different calibration or cleaning liquids can be transferred
to the sensor located in the calibration chamber. These liquids leave the calibration chamber
through an outlet hose, i.e., they are displaced from the calibration chamber by following liquids.
Control Air and Feedback
The pneumatic retractable fitting is controlled by introducing compressed air. The compressed-air
hoses have an outer hose diameter of Ø 6 mm and are connected to push-in fittings.
The icons indicate the travel direction of the retractable fitting:
• P: Move the retractable fitting to the PROCESS position (measuring position).
• S: Move the retractable fitting to the SERVICE position (rinsing, calibration, and
service position).
Version without feedback Version with feedback
SERVICE control air PROCESS control air
PROCESS
control air
SERVICE
control air
SERVICE feedback
PROCESS feedback
Optionally, the retractable fitting can provide pneumatic feedback signals (SERVICE or PROCESS).

11
Overview of Retractable Fitting
SensoGate WA 133
The SensoGate retractable fitting has a modular design. This allows the drive unit, immersion tube
and process adaptation to be exchanged. The retractable fitting consists of two main units:
• The drive unit performs the movements required to move the sensor into and out of the
process. The immersion tube is attached to the drive unit. It protects the sensor.
• The process unit comprises the process-wetted calibration chamber and the process adapta-
tion (e.g., flange). Drive unit and process unit can be separated, see “Drive Unit, Disassembly”
chapter.
Drive unit
Process unit
Fixing bracket
Coupling nut
Calibration
chamber
Immersion tube
Leakage bore
Outlet
Sensor holder
Process
adaptation
‘SensoLock‘
Connectors (2x)
for control air
Flange bushing
Inlet
Connectors (2x)
for pneumatic
feedback
!
NOTICE: Leaking Process Fluids!
Process fluids leaking from the outlet or at the leakage holes indicate that the calibration
chamber is not tight.

Modular Design: Drive Unit, Immersion Tube, Process Adaptation
12 Overview of Retractable Fitting
SensoGate WA 133
Short immersion depth
Sensors with
solid electrolyte
Long immersion depth
Sensors with
solid electrolyte
Short immersion depth
Sensors with
liquid electrolyte
Drive Units
Process adaptation
• DIN and ANSI
loose flanges
Immersion Tubes
Process Adaptation
LongShort Bayonet coupling
Material: stainless steel, 1.4571
Immersion tube
Material: PTFE

13
SensoLock – Safety Function
SensoGate WA 133
Optionally, the retractable fitting is equipped with the ‘SensoLock‘ safety function. The safety func-
tion consists of a rotatable ring that mechanically blocks the travel movement of the retractable
fitting. The ring can only be rotated when in SERVICE position. In PROCESS position and all inter-
mediate positions the ring is secured.
Before starting maintenance work or replacing a sensor:
1. Move the retractable fitting to the SERVICE position.
2. Twist the ring to the ‘lock‘ position.
Twisting the ring to the ‘lock‘ position prevents the immersion in
the process when the sensor has been removed.
After having installed a sensor, you unlock the travel movement
by twisting the ring to ‘unlock‘.
SensoLock– rotatable ring that blocks or releases the travel
movement of the retractable fitting.

!
NOTICE: Always install both hoses to ensure safe operation!
To ensure safe operation of the retractable fitting, you must connect the inlet and outlet hoses
and make sure that the cleaning and calibration solutions are collected!
The limit switch converts the pneumatic limit signals into electric output signals (PE converter).
Through a piston, the pressure acting on the push-in fitting actuates the electrical micro push
button switch (normally-open contact) located in the limit switch.
14 Assembly
SensoGate WA 133
1. Connect the outlet hose
(AF) using the hose cou-
pling (AE). The outlet is
marked with the following
symbol (I).
2. Connect the inlet hose (AZ)
using the hose coupling
(AE). The inlet is marked
with the following symbol .
AE
AF
Mounting the Retractable Fitting
• Possible mounting angle 15° above
horizontal
• Mounting angle 360° (i.e. even upside down)
for special sensors only containing thickened
electrolytes which thus cannot flow. 15°
15°
Installing the Outlet and Inlet Hoses
AZ
AE
I
Installing the ZU 0859 Electrical Limit Switch with Plug-In Adapter (Optional)
1. Screw the plug-in adapters onto
the limit switches.
2. Insert the assembled limit switches
into the “SERVICE feedback” and
“PROCESS feedback” push-in fittings.
“SERVICE feedback”
push-in fitting
“PROCESS feedback”
push-in fitting
Plug-in adapter
Limit switches

15
SERVICE Position
SensoGate WA 133
The SERVICE position is
indicated by the sensor
head (J) protruding out of
the drive unit (AD).
In addition, the metal ring
(MT) fits flush with the
sensor holder (SO).
The SERVICE position is indi-
cated by the service cap (L)
protruding out of the exten-
sion.
The SERVICE position is indi-
cated by the rubber bellows
(B) being expanded.
Short immersion depth
Solid-electrolyte sensor
Short immersion depth
Liquid-electrolyte sensor
Long immersion depth
Solid-electrolyte sensor
J
B
L
The following illustrations clearly show the SERVICE position:
AD
SO
MT

16 PROCESS Position
SensoGate WA 133
Short immersion depth
Solid-electrolyte sensor Short immersion depth
Liquid-electrolyte sensor
Long immersion depth
Solid-electrolyte sensor
The PROCESS position is
indicated by the sensor
connector not protruding
out of the drive unit (AD).
The PROCESS position is indi-
cated by the service cap not
protruding out of the extension
(V).
The PROCESS position is
indicated by the rubber bel-
lows (B) being compressed.
B
The following illustrations clearly show the PROCESS position:
V
AD

17
Installing and Removing a Sensor
SensoGate WA 133
Preparations:
• Move the retractable fitting to the SERVICE position.
• If provided, twist the SensoLock ring to 'lock' position.
• Limit the pressure on the fitting to a maximum of 8 bar.
• Make sure that there is no liquid leaking from the outlet.
• Check whether the sensor is damaged (e.g., glass broken).
Never install a damaged sensor!
• Check whether the slide washer or O-ring on the sensor are damaged and replace if required.
• Remove the watering cap from the sensor tip and rinse the sensor with water.
• When the sensor has a silicone seal on the junction (as transport protection),
remove this seal using a knife.
• Follow the assembly instructions given in this manual step by step.
!
NOTICE: Sensor Installation or Removal by Qualified Personnel Only!
Sensors shall only be installed or removed by personnel authorized by the operating company
and trained in the handling of the retractable fitting.

E
F
18 Sensors with Solid Electrolyte
SensoGate WA 133
Short Immersion Depth
A
J
C
D
E
G
Mounting wrench,
ZU 0647
Installing the Sensor
Before installing the sensor, make sure that the
retractable fitting is in SERVICE position.
1. Use appropriate sensors (A) only:
Diameter: 12 mm Length: 225 mm
Observe the pressure resistance of the sensor.
2. Make sure that the slide washer (C) and the
O-ring (D) are correctly positioned and not
damaged.
3. Insert the sensor and screw in the sensor head
(J) (19 mm A/F, PG 13.5 thread) with a max.
torque of 3 Nm (recommended tool: 19 mm
mounting wrench, e.g., Knick ZU 0647).
Note: When tightening the sensor, you must
overcome the elastic force of the internal
sensor monitoring.
4. Connect the cable jack (G).
Hold the cable in a loop and fix it using clamp
(E).
Note: The cable loop must be long enough
so that the cable does not impede the stroke
movement of the retractable fitting.
5. Connect the equipotential bonding cable to
terminal (F) (if required).
6. Mount the protective cap (ZU 0759) if required
(see user manual of protective cap).

19
Sensors with Solid Electrolyte
SensoGate WA 133
Short Immersion Depth
A
J
C
D
E
F
G
Removing the Sensor
Only remove the sensor when the retractable fit-
ting is in SERVICE position (see “SERVICE Postition”
chapter).
1. Remove the protective cap (ZU 0759) if
required (see user manual of protective cap).
2. Remove the cable jack (G).
3. Before removing the sensor, check that there is
no liquid leaking from the outlet (process seal-
ing might be defective).
4. Remove the sensor (recommended tool:
19mm mounting wrench, e.g., Knick ZU 0647).
5. Check whether the slide washer (C) or the
O-ring (D) are damaged.
!
NOTICE: Glass Breakage!
When replacing damaged sensors (glass bro-
ken), be sure to check the sensor gasket in the
immersion tube and replace it if required (see
“Immersion Tube” chapter).

E
F
20 Sensors with Solid Electrolyte
SensoGate WA 133
Long Immersion Depth
Installing the Sensor
Before installing the sensor, make sure that the retract-
able fitting is in SERVICE position (see SERVICE
Position).
1. Use appropriate sensors (A) only:
Diameter: 12 mm Length: 225 mm
Observe the pressure resistance of the sensor.
2. Make sure that the slide washer (C) and the O-ring
(D) are correctly positioned and not damaged.
3. Insert the sensor and screw in the sensor head (J)
(19 mm A/F, PG 13.5 thread) with a max. torque
of 3Nm (recommended tool: 19 mm mounting
wrench, e.g., Knick ZU 0647).
Note: When tightening the sensor, you must
overcome the elastic force of the internal sensor
monitoring.
4. Thread the cable jack (G) through the extension (V).
Note: The cable loop must be long enough so that
the cable does not impede the stroke movement of
the retractable fitting. When the cable is installed
for the first time, you must first pull off the split red
service cap (L).
5. Connect the cable jack (G) with the sensor plug
(connection with coupling nut).
6. Attach the extension (V) and turn it clockwise until
it noticeably snaps in.
7. Put the split (red) service cap (L) on the cable as
shown. Then push it into the extension (V) until it
noticeably snaps in.
8. Hold the sensor cable in a loop and fix it using
clamp (E).
9. Connect the equipotential bonding cable to
terminal (F) (if required).
10.Mount the protective cap (ZU 0759) if required
(see user manual of protective cap).
V
G
J
A
E
F
L
C
D
Mounting
wrench,
ZU 0647