WAGNER Rapid RH 4.0 EX Manual - Take Readings
Step 4:
Take Readings
When ready to take readings, remove the orange
protective cap from the Smart Sensor, and ensure no dust
or debris are inside. Insert the Rapid RH
®
Easy Reader
firmly until it comes fully into contact with the bottom of
the Smart Sensor. Hold the Easy Reader in place until the
first relative humidity reading appears on the screen (about
three seconds), then immediately remove the Easy Reader.
The display will toggle back and forth between the relative
humidity value (when the cursor is next to the %RH symbol)
and the temperature value (when the cursor is next to the
°F or °C symbol*). Once the Easy Reader is removed from
the Smart Sensor, the readings from that Smart Sensor
will continue to display for approximately 5 minutes or until
the Easy Reader is reinserted into another Smart Sensor.
After removal, wait at least 5 seconds before inserting the
Easy Reader into another Smart Sensor. Replace the Easy
Reader’s plastic end caps when not in use.
In most cases, one hour after installation, the Smart Sensor
will generally give a reading within 3-5% RH of the reading
you would see after the ASTM-required 72-hour mark.
Just remember to follow the ASTM F2170 procedures
pertaining to equilibration time.
After the initial equilibration has been reached per ASTM F2170 requirements,
subsequent readings can be taken instantly (see ASTM F2170 Best Practices section
at the end of this manual). If future testing is needed, replace the protective cap by
snapping it back into the Smart Sensor.
Record readings on the enclosed report form in the spaces provided for information
required by ASTM F2170, including the date, time, %RH and temperature. The grid
at the bottom of the report form can be used to record test-hole locations. Each Smart
Sensor is serialized on the outside of the Smart Sensor. Extra copies of the report
form and an ASTM F2170 checklist can be downloaded at
www.rapidrh.com
. You can
also visit
www.rhspec.com
to visit links to various finished flooring manufacturers’
installation guides and their RH thresholds. For any additional questions related
to what RH levels are appropriate, please contact the manufacturer of the
product to be applied to the concrete slab.
*Rapid RH
®
Easy Readers that display temperature in Celsius can be identified by their blue labels and
blue plastic protective caps.
7
8
Record readings on report form
included with Smart Sensors
Easy Reader
inserted into a
Smart Sensor