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3 instrument repair – KROHNE OPTISWITCH 52x0C ARV52 16bar EN User Manual

Page 10

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10 Screw the pressure screw (11) with a view turns from top

into the mounting boss (7)

11 Clean the connection tube of the sensor and the surfaces

of the clamp (1) as well as the pressure screw (11)

carefully and remove grease, oil and dirt. Insert the sensor

into the lock fitting. Slide the tube into the requested

position and hold it

12 Make sure that the sensor is in the correct position (height.

The height adjustment of the sensor determines also the

switching point

13 Tighten the pressure screw (11) with a torque 70 ±10 Nm

(51 ±7 lbf ft)

14 Continue to turn the pressure screw (11) clockwise until the

hexagon surfaces of the pressure screw (11) and the

mounting boss (7) correspond (max. 1/6 turn)

15 Tighten the terminal screws (3) alternately. Make sure that

the gap between clamp and pressure screw is in parallel.

Tighten the terminal screws up to a torque of 3 ±1 Nm

(2.2 ±0.7 lbf ft).
Hence the clamp (1) is pressed against the tube and fixes

the tube of the sensor in this position

16 Fasten the locking angle (4) with the hold screw (6) and the

spring ring (5) laterally on the pressure screw (11)
Hence the pressure screw and the terminal screws are

protected against unintentional loosening

5.3 Instrument repair

If a repair is necessary, please proceed as follows:
You can download a return form from our Internet homepage

http://www.krohne-mar.com/fileadmin/media-lounge/PDF-

Download/Specimen_e.pdf.
By doing this you help us carry out the repair quickly and

without having to call back for needed information.

l

Print and fill out one form per instrument

l

Clean the instrument and pack it damage-proof

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Attach the completed form and possibly also a safety data

sheet to the instrument.

10

Lock fitting ARV 60 - up to 16 bar for OPTISWITCH 5200

Maintenance and fault rectification

30922

-EN
-050704