Brilliant video - very clear. I'd like to see more of these. In the video you mention this procedure is in line with the ASTM standard - could you confirm which standard that is exactly? Also, what are the other standards that could be considered for this test?
Running through the screens and being in the correct mode should be a part of this along with checking and establishing a baseline, making sure you are calibrating etc This tool and pieces are so expensive how about being thorough
I want to see the calibration check. Why is the Protimeter calibration at 75% and other reusable systems have calibration at 60% (Wagner Meters) or ***** has 1 or 3 75% salt solutions. Do the Hygrosticks not have to be kept in a calibrated environment? I have an old Protimeter I got at surfaces (Pre 2170-11) and found that the accuracy of the probes is so important. The +/- % matters a lot as does their calibration. I have had 3 or 4 jobs in the last few years where old equipment gave false low readings on RH.
Evan Adams Hi Evan, We use a resistance based sensor that we manufacture especially for this application. We do not need to keep the sensor hydrated to keep it in calibration and it recovers extremely well from dew point. The sensors in the kit come with a 4 point NIST traceable calibration certificate and the 75% salts test is meant as a calibration check at 75% RH. We use 75% as a test point rather than 60% as its closer to the normal levels of RH% found in concrete.
Protimeter Moisture Meters thank you that makes sense. We use all independent ICRI certified testing firms so I will make sure to keep this in mind next time I see them testing.
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Excellent Video!
Evan Adams Thanks, call me anytime if you have questions 978 294 8222
Brilliant video - very clear. I'd like to see more of these.
In the video you mention this procedure is in line with the ASTM standard - could you confirm which standard that is exactly?
Also, what are the other standards that could be considered for this test?
A.S.T.M. = Another Stupid Test Measurement
Running through the screens and being in the correct mode should be a part of this along with checking and establishing a baseline, making sure you are calibrating etc This tool and pieces are so expensive how about being thorough
I want to see the calibration check. Why is the Protimeter calibration at 75% and other reusable systems have calibration at 60% (Wagner Meters) or ***** has 1 or 3 75% salt solutions. Do the Hygrosticks not have to be kept in a calibrated environment? I have an old Protimeter I got at surfaces (Pre 2170-11) and found that the accuracy of the probes is so important. The +/- % matters a lot as does their calibration. I have had 3 or 4 jobs in the last few years where old equipment gave false low readings on RH.
Evan Adams
Hi Evan, We use a resistance
based sensor that we manufacture especially for this application. We do not
need to keep the sensor hydrated to keep it in calibration and it recovers extremely
well from dew point. The sensors in the kit come with a 4 point NIST traceable calibration
certificate and the 75% salts test is meant as a calibration check at 75% RH.
We use 75% as a test point rather than 60% as its closer to the normal levels
of RH% found in concrete.
Protimeter Moisture Meters thank you that makes sense. We use all independent ICRI certified testing firms so I will make sure to keep this in mind next time I see them testing.