K. Tanaka, Akutsu (continued from 8214)
- Did tiny remaining works for adapter block to the cooler head: torqued the four M8-40 screws with the plain washers and the spring washers. The final torque of 15Nm (5-> 10-> 15) was applied to each by a torque wrench.
- Did tiny remaining works for 6N Al heat links: torqued in 5Nm for all the screws (Fig 1).
- Did tiny remaining works for a thermometers: replaced the M3-8 screw with a M3-10 screw, which was used to fix a thermometer S/N#368, that was fixed at the WAB's suspension structure.
Then connected electric wires of the thermometers: used P23 burndy connector, and the pin assign is (Fig 2):
ABCD: V-, V+, A-, A+ in this order, and the pins are from the WAB itself
EFGH: V-, V+, A-, A+ in this order, and the pins are from the suspension structure
and checked the diode's directions at the edge of the cable outside. Fig 3 shows the burndy cable from the P23 connector of the EYC chamber; I today attached the white circular tag to indicate it is coming from P23.
Note: the burndy cable from P23 of EYC is not sufficiently long to reach the cryocon; so we would need additional extension cable other than the one for changing connectors (adaptoring).
