MEASURING RH IN CONCRETE SLABS IN ACCORDANCE WITH ASTM F-
2170:
Navigator Pro can be used to measure the RH in a concrete slab in accordance with the ASTM F-
2170 Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs.
Basic Test Procedure:
Drill 5/8-inch hole in concrete to the appropriate depth and remove debris from the holes.
Insert a CS-2 concrete sleeve into the hole and plug the sleeve with the cap that is provided
with each sleeve.
Wait approximately 72 hours.
Remove protective cap from the concrete sleeve and insert the RH/T-S3 humidity sensor into
the hole. Wait approximately 1hr to allow the sensor to acclimate to the RH in the hole.
Connect one end of the RH/T-C1 cable to the top of meter and the other end to the exposed
end of the sensor. Take a RH reading using the RH/TEMP mode of Navigator Pro as
described on pages 10 and 17. This reading is the RH of the concrete slab.
TESTING INSULATION:
Set the meter scale
for PLASTER as described in the Create/Modify a Job section on page
11.
To take a reading,
attach a 21-E electrode with 4” insulated contact pins to the meter. Push
the contact pins through the drywall into the insulation behind it.
Press the SELECT button
and read the moisture content on the meter scale. The meter
displays the “relative” moisture level for two seconds.
TESTING DRYWALL
Set the meter scale
for Sheetrock® as described in the Create/Modify a Job section on page
11.
To take a reading,
push the contact pins into the Sheetrock® to their full penetration, if
possible.
Press the SELECT button
and read the moisture content on the meter scale. The meter
displays the %MC for two seconds.
Summary of Contents for navigator pro
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