Discuss FREE Calibration 20 thnigies bugger in the Electrical Forum area at ElectriciansForums.net
sorry, but that's a load of bollox. get your mft calibrated in your controlled temperature ( 20 deg. C? and 40% humidirty) and then take it to a job after it's been in your garage/workshop @ 5 deg.C to the job where it's 10 deg.C. with humidity @ 80%. how's that affect the readings?Excuse my ignorance but how are they going to do that when calibration should be carried out in an environment with a controlled ambient temperature and humidity?
Site calibration is dodgy at best and feeds off the desperate and impatient.
Unless Yesss are going to set up a restricted, controlled area then I'd steer clear of believing that calibration to be completely accurate.
This is my business, my reputation and my customers lives.
I'll send my equipment off to a reputable calibration company for the 3 - 5 days it takes (usually 3) and pay the £70. It's cheaper than the potential alternative disaster.