insulated ? the DUT is in a environmental chamber, in this case set to the 'same' temp as the coolant
the DUT is 6" of 3/8"ID silicone tubing having a cross connected to each end, for both crosses one branch is for a 1/4" RTD and the other a pressure tap
- the pressure drop across this DUT will equal the 'connection pressure drop' which is subtracted from the gross readings of other devices
- likewise the strange temperature drop measurements
but I think not, some other issue - not new physics
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