CAEN
Electronic Instrumentation
A1539, AG539, A154X, AG54X Power Supply Boards
13
The following diagrams show four examples of configuration, namely:
1.
The “closed loop “ Earth configuration
2.
The “closed loop “ Earth configuration, with protection stage on the load grounding
3.
The “semi-open loop” Earth configuration
4.
The “open loop” Earth configuration
HV Generator
Load
PMT
0
HV Channel 0
RETURN
Load
PMT
31
HV Channel 31
EARTH of
DETECTOR
Cable SHIELD
Circuit Protected
SHIELD
Circuit Protected
RETURN
HV CABLE
AGND
2
1
4
3
6
5
FRONT PANEL
JUMPERS
1
HV Generator
Load
PMT
0
HV Channel 0
RETURN
Load
PMT
31
HV Channel 31
EARTH of
DETECTOR
Cable SHIELD
Circuit Protected
SHIELD
Circuit Protected
RETURN
HV CABLE
AGND
2
1
4
3
6
5
FRONT PANEL
JUMPERS
2
HV Generator
Load
PMT
0
HV Channel 0
RETURN
Load
PMT
31
HV Channel 31
EARTH of
DETECTOR
Cable SHIELD
Circuit Protected
SHIELD
Circuit Protected
RETURN
HV CABLE
AGND
2
1
4
3
6
5
FRONT PANEL
JUMPERS
3
HV Generator
Load
PMT
0
HV Channel 0
RETURN
Load
PMT
31
HV Channel 31
EARTH of
DETECTOR
Cable SHIELD
Circuit Protected
SHIELD
Circuit Protected
RETURN
HV CABLE
AGND
2
1
4
3
6
5
FRONT PANEL
JUMPERS
4
Fig. 4 – Earth configuration connection examples
