filiberto.clara@LIGO.ORG - posted 10:43, Wednesday 23 October 2024 - last comment - 13:15, Wednesday 23 October 2024(80840)
LHO Continuity Test of Fast Shutter Air Cable
WP 12159
High voltage disabled. Control Chassis powered off. Cable to chamber disconnected at rack/chassis.
Continuity test of pins:
- Pins A & C tied together
- Pins B & D tied together
- Pins E & F tied together
All pins and shell open to chamber ground.
Next test:
Driver chassis power off, HV off, cable to chamber connected:
The DB25 controls cable was disconnected on the rear of the driver chassis. Cable comes form CER slow controls. Pin 14 has about 100 ohms to chamber ground.