Asking the PROs to comment on my methods:
I have a thermometer where the bulb is covered with a 'wick', and the wick is immersed in distilled water.
In taking measurements in a room, I either wave the thermometer rapidly (simulating a sling psychrometer), or place the bulb portion in the air stream of a fan. I continue (either method) until the temperature reading is constant, and assume the reading to be correct.
I would like to take WB measurements of the air stream in my plenum. I have a Fieldpiece SPK1 and propose to use a wet wick over the probe.
Lacking an electronic instrument, could I expect to get a reasonably accurate measurement if the probe stabilized rapidly?
Thanks for your input.