SENSseries LB 480 Level measurement
BERTHOLD TECHNOLOGIES GmbH & Co. KG
2 – 229
Volume 2
4 Repair, Maintenance and Upkeep
2
4.2
Replacing the Complete Detector
Reuse of detectors
Detectors that are used in the non-Ex area may not be used in an
Ex area.
Intrinsically safe detectors, whose the intrinsically safe signals are
connected to non-intrinsically safe circuits must not be connected
to intrinsically safe circuits any more.
Explanation:
Detectors which are used in non-hazardous areas are not subject to
the supervision and maintenance of Ex-protection experts; there-
fore, it is not guaranteed that, for example, for repair or assembly,
the necessary care is taken which is required for the detectors in Ex-
areas. The Ex-protection safety is therefore no longer guaranteed.
The same applies to the intrinsic safety of detectors.
Replacing the detector
Proceed as follows to replace the detector:
Write down all software parameters of the installed detector.
Disconnect the detector from power.
Turn off any peripherals connected and all inputs and outputs.
Unscrew the housing cover (M5 and M8 Allen wrench).
Open wiring on digital board and on the terminals.
Tip
If the wires are not marked, we recommend marking the individual
wires before disconnecting them.
After you have disconnected the wires and cables, reattach the
housing cover with sealing immediately, so that the parts cannot be
damaged during the mechanical removal.
Dismantle the old detector from the fixture.
Mount the new detector onto the fixture.
Unscrew housing cover of the old detector.
Connect the wires.
Close the housing carefully with the housing cover. To do this,
put the housing cover with the sealing on the housing and
tighten the Allen screws using the specified torque: depending
on the version, M5 with 4 Nm or M8 with 17 Nm (standard val-
ues).
Turn on power.
Содержание LB 480
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Страница 147: ...SENSseries LB 480 Level measurement BERTHOLD TECHNOLOGIES GmbH Co KG 1 147 Volume 1 1 Notes...
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