Wagner Meters Rapid RH 4.0 EX, Руководство пользователя

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Display shows “ER”: The Rapid RH
®
4.0 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. Try gently twisting the
Rapid RH
®
4.0
Easy Reader
back and forth a few times to “sweep” away any particles that
may have blocked complete contact. If this does not work, vacuum out the housing.
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.
Trouble Shooting
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. 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 +/- 2% RH from 50% 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
Use Conditions