Your tungsten lamp should have a practically constant light output during the exposure, so no need to 'compensate.' You would not want to have the sensor reading any colored light from the head if you are using the dichroic filters in the head. I will really mess up your exposures.
This is what I thought, I have a Zonemaster II meter coming and that will play nice with a constant light source. I'll just save the spare sensor for my 3rd enlarging station which will be a student / workshop one with the regular D2 head.
"I always put my fb prints in a filled aquarium on the wall.
No problem with dry down times..." APUG'r Willie Jan