Curious if anyone uses a sling pschometer to measure dry bulb/wet bulb temperatures?
If so what do you do about annual calibration of the instrument?
I'm looking for a way to verify the accuracy in-house vs sending it out for a sticker by a 3rd party.
I had several electronic units that did an excellent job and those were sent back to the mfg annually for calibration...however, the paint department here is really hard on instruments and it costs as much to repair this as it does to purchase a new one and we've been down that road several times already...so it's in my drawer and I resorted to using the sling psychrometer and weather charts(there is one that I created and posted in Useful Downloads built in Excel) to figure the dewpoint and relative humidity.