WAGNER Rapid RH 4.0 EX Manual - Encapsulate Smart Sensor
If future readings are
no longer needed (for
example, when ready to
apply a floor covering
or coating), place the
stainless steel metal disk
over the Smart Sensor and
skim-coat the hole with
a cementitious patching
compound compatible with
the flooring
manufacturer’s
installation instructions.
Easy Reader
LCD display shows “ER”: The Rapid RH
®
Easy Reader may not be
properly communicating with the Smart Sensor for the following reasons: (1) The Easy
Reader was not in contact with the Smart Sensor long enough. Hold the Easy Reader
in the Smart Sensor until the first relative humidity reading appears on the screen, then
remove. (2) Debris is blocking proper contact. Check the Smart Sensor housing for any
debris.
Replace the batteries: The Easy Reader comes with two AAAA alkaline batteries. If
batteries are low,
the display will read “LO.” Replace batteries immediately. To replace
the batteries, open up the battery cover by removing the one battery cover screw with
a jeweler’s Phillips screwdriver. DO NOT OPEN UP THE FULL BODY OF THE EASY
READER AT ANY TIME.
Use Conditions
The Rapid RH
®
4.0 EX is intended for interior use only. It is imperative that the interior application area
be protected from weather elements such as rain and snow to prevent water intrusion. The Rapid RH
®
4.0 EX is not to be used in concrete less than 28 days old (see ASTM F2170 Best Practices section
on page 11). Follow ASTM F2170, Standard Test Method for Determining Relative Humidity in
Concrete Floor Slabs using in situ Probes
1
.
NIST
2
traceable accuracy:
Readings at +/- 1.8% RH from 10% to 90%
Readings at +/- 3% RH from 90% to 95%
Avoid severe cold or hot storage environments (i.e. vehicles)
1
Available from ASTM International, P.O. Box C700, West Conshohocken, PA 19428-2959,
www.astm.org
2
National Institute of Standards and Technology
Step 5:
Encapsulate Smart Sensor
Troubleshooting
9
10
Place metal disk over Smart
Sensor before encapsulating
Apply cementitious
patching compound