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54733-10BA2L
2 – 234
02.2017
4 Repair, Maintenance and Upkeep
Volume 2
4.4
Replacing the Crystal-Multiplier Assem-
bly (for CrystalSENS)
Explosion hazard!
For detectors used in the Ex-area, the crystal-multiplier assembly
must be replaced solely by the BERTHOLD TECHNOLOGIES service
or by persons authorized by BERTHOLD TECHNOLOGIES. If this is
not possible, you must replace the entire detector or return it to the
manufacturer for repair.
Replacing the crystal-multiplier assembly can cause a change in
sensitivity of the detector for gamma radiation. Therefore, check
the calibration after the replacement and possibly perform a new
calibration.
You may carry out the activities described below only if the detector
is not used in an Ex-area.
Remove the electronics module as described on
Dismantle the crystal: loosen and remove the sleeve nut on top
of the overtube of the multiplier tube (PMT). Then pull the crys-
tal off the multiplier.
Remove the PMT overtube from the PCB holder.
Pull the multiplier
from the base of the electronics.
Plug the new multiplier into the socket. Please observe the
encoding nose.
Install the electronics module into the detector as described on
.
IMPORTANT
The replacement of the multiplier requires a readjustment of detec-
tor code and HV parameters. Please read also Volume 2, chapter
1.6, "Detector Codes", page 2-166, and Volume 3, chapter 2.42,
"Plateau Measurement", page 3-371.
Check the function of the measurement. If you detect any devi-
ations, carry out a new calibration, see
, on
.
Separate User’s Manuals are available for user interfaces such
as SIMATIC PDM or FOUNDATION
™
Fieldbus.
This completes the exchange of the crystal-multiplier
assembly.
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Страница 3: ...1 2 3 Volume 1 Safety Manual Volume 2 Installing SENSseries Volume 3 Operation with HART Communicator...
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Страница 109: ...SENSseries LB 480 Level measurement BERTHOLD TECHNOLOGIES GmbH Co KG 1 109 Volume 1 7 Functional Safety 1...
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Страница 112: ...54733 10BA2L 1 112 02 2017 8 Visual Inspection Volume 1...
Страница 128: ...54733 10BA2L 1 128 02 2017 9 Radiation Protection Volume 1...
Страница 147: ...SENSseries LB 480 Level measurement BERTHOLD TECHNOLOGIES GmbH Co KG 1 147 Volume 1 1 Notes...
Страница 149: ...1 g l Time 0 00 10 30 11 00 11 3012 00 12 30 Volume 2 Installing SENSseries...
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Страница 170: ...54733 10BA2L 2 170 02 2017 1 System Description Volume 2...
Страница 240: ...54733 10BA2L 2 240 02 2017 4 Repair Maintenance and Upkeep Volume 2...
Страница 254: ...54733 10BA2L 2 254 02 2017 5 Technical Information Volume 2 LB 480 Dimensions in mm Abmessungen in mm...
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Страница 297: ...SENSseries LB 480 Level measurement BERTHOLD TECHNOLOGIES GmbH Co KG 2 297 Volume 2 2 Notes...
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Страница 390: ...54733 10BA2L 3 390 02 2017 3 Getting Started via the HART Communicator Volume 3...
Страница 410: ...54733 10BA2L 3 410 02 2017 6 Functional Processes Volume 3...
Страница 428: ...54733 10BA2L 3 428 02 2017 7 Explanations Volume 3...
Страница 440: ...54733 10BA2L 3 440 02 2017 8 Error Handling Volume 3...
Страница 444: ...54733 10BA2L 3 444 02 2017 9 Setup Protocol Volume 3 Path Parameters Unit Standard SETUP...
Страница 445: ...SENSseries LB 480 Level measurement BERTHOLD TECHNOLOGIES GmbH Co KG 3 445 Volume 3 3 Notes...
Страница 449: ...SENSseries LB 480 Level measurement BERTHOLD TECHNOLOGIES GmbH Co KG 1 449 Volume 1 Notes...