I ran the ITM RHs for twenty minutes at 2W total input power this morning to measure the resistance of the segements and the change in resistance vs time due to an increase in temperature of them. This is to confirm they are working as part of the acceptance testing.
The resistance of the RH segments was around the nominal value of 42 Ohms:
The relative resistance vs time is shown in the attached plot. There is some (~20%) variation between the different segements.