LB 470RID Level
9 Troubleshooting
56925-1BA2 Rev.02, 05/2021
175
9
Troubleshooting
9.1
Error Search
Problem
Cause
Measure
Master unit: Screen black; LEDs
are not illuminated
EVU does not work
Check power supply and
fuses
Slave module:
LEDs are not illuminated
Slave module not clamped
properly
Check cabling, contact
sockets
No signal
Detector does not work
Check the functioning of
the detector
Count rate too low
Shield not opened or not
opened correctly
Check lock and ensure it is
in OPEN position
Incorrect focus of the effec-
tive radiation on the
detector
Correct and optimize the
alignment
Objects in the beam path
Offset irradiation level
Source at the end of its usa-
ble life span
Replace source
No or incorrect level display
level value entry incorrect
Check the calibration
value and the level display
The level display deviates
Defect in detector
Check detector
Incorrect calibration
Check calibration values
Count rate too low (see
above)
Check source age and irra-
diation level, replace
detector
Detector is not detected (soft-
ware)
Terminals / wiring
Check terminal connec-
tion; check terminal
assignment
Damaged line
Check cable; examine with
measurement device.
Incorrect type LB 44xx / LB
54xx / LB 4700 in the config-
uration
Check type of detector
(see type plate on the de-
tector)
Summary of Contents for DUO XPERT LB 470RID
Page 2: ......
Page 12: ...1 About this Operating Manual LB 470RID Level 12 56925 1BA2 Rev 02 05 2021...
Page 16: ...2 Safety LB 470RID Level 16 56925 1BA2 Rev 02 05 2021...
Page 34: ...3 System Description LB 470RID Level 34 56925 1BA2 Rev 02 05 2021...
Page 42: ...4 Installation LB 470RID Level 42 56925 1BA2 Rev 02 05 2021...
Page 207: ...Level F llstand Technical Information Technische Information 56925TI1L Rev No 04 05 2021...
