2018 Apr/08-May/18
May/18: replaced the glycol pump and flow meter.May/15: pump voltage increased to 12V.
May/10: pump voltage increased to 11V (yes, it goes upto eleven).
May/07: pump voltage increased to 10V.
May/06: pump voltage increased to 9V.
April/30: pump voltage increased to 8V.
April/21: pump voltage fixed at 6V.
April/18: pump motor replaced
The glycol flow is still lower than normal.
April/12: pump goes haywire -- run the pump at fixed voltage.
The glycol flow has been decreasing since the last run.
April/11:
Glycol: Pg=2.0, I=0.5, F=-0.470+0.0420*(SetP-Tout)+"GTC"
April/10:
Glycol: Pg=2.0, I=0.5, F=-0.490+0.0420*(SetP-Tout)+"GTC"
April/09:
Glycol: Pg=2.0, I=0.5, F=-0.505+0.0420*(SetP-Tout)+"GTC"
April/08:
Glycol: Pg=2.0, I=0.5, F=-0.525+0.0420*(SetP-Tout)+"GTC"April/??: New dewar March/05:
Glycol: Pg=2.0, I=0.5, F=-0.555+0.0420*(SetP-Tout)+"GTC" GTC = (glycol_supply-glycol_return-0.330)/2 Air: Pa=15.0, Da=5.0 DHT = 0.110 PMT = 0.020 LN2(bank) = 0.85 LN2(cap) = 0.45
