Procedure for DUT(4Cols,30um) Preparation

Line-3:

1. Record drawing currents in line-3.
2. Shutoff all HV and LVs in line-3.
3. Disconnect all cables of 4Cols30um sensor and remove.
4. Install 4Cols20um sensor to line-3 and reconnect all cables.
5. Turn on LV and HV. HV suppose to be changed from 198V to 123V.
6. Confirm the current came to the same.

Line-2:

1. Shutoff LVs and HVs. Shutoff HVs for scintillators and MCP-PMT.
2. Wait for 5 minutes.
3. Disconnect all cables of DUT 2Cols30um sensor and remove the fixture.
4. Install 4Cols30um sensor took out from the Line-3 and reconnect all cables.
5. Turn on LV and HV of the DUT. HV suppose to be set 198V as it is. Turn on HVs for scintilllators and MCP-PMT.