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FCL (Water)
shinji.miyoki - 17:29 Tuesday 02 April 2024 (29047) Print this report
Y-arm mine water and pumps

[Hayakawa, Yoshimura, Yamaguchi, Takahashi.m]

We turned on Y-arm water pumps (Y1000 at 11:00 and Y2300 No.2 at 11:15).
Now all three water pumps are working (Y2300 No.1, 2, and Y1000 ).
There was some flooding from Y1600 to Y2300 in the morning, but by around noon, it was fine.
The room temperature in the Y-end may be lower because the water from pump No.2 goes through the Y-end.

Comments to this report:
tatsuki.washimi - 10:57 Friday 05 April 2024 (29101) Print this report

From April 2nd, the Y-end water (flow rate, velocity, and level) shows 0.

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tatsuki.washimi - 12:41 Friday 05 April 2024 (29104) Print this report

[YokozaWashimi]

We went to check the water fluid meter.
Any troubles (e.g., the sensor and/or jigs are broken and washed away) were not found.
So this strange value may come from the too-fast flow.

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shinji.miyoki - 15:33 Monday 08 April 2024 (29130) Print this report

Because the temp in the EYC area decreased by ~1.6 C degrees despite heater operation with 1.2kW, I increased the heater power by 1.5kW around 15:30.

tatsuki.washimi - 18:13 Wednesday 24 April 2024 (29311) Print this report

The readout of the water fluid has recovered.

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