The test can be ended when RH% readings do not drift
by more than 1% RH over a 5 minute period within
the acceptable +/- 2% tolerance of the nominal 75%
relative humidity. A temperature difference of +/- 1°C
(1.8°F) can cause an error of up to +/-3 to 5% at 50%
RH and +/-6% at 97% RH readings. Please note any
further handling of the salt chamber can cause a heating
effect so handle the salt chamber as little as possible.
Due consideration must also be given to the test site,
do not perform in direct sunlight or close to sources of
heat eg. heaters or spotlights.
Temperature stability is extremely important for the
duration of the test.
Calibration check salts do not have an expiry date and
have unlimited usage when cared for in the correct
manner.
Do check the seal inside chamber is exposing as much
of the vent as possible and that there is a mix of salt and
water and no caking of salt to side walls of chamber.
Humidity probes exposed to conditions outside normal
range, especially high humidity may temporarily
offset the RH reading. After return to normal ambient
condition it will slowly return towards calibration state
by itself. Prolonged exposure to extreme conditions
may accelerate ageing.
For further information please refer to the latest
calibration check salt instructions which are supplied
separately.
CONCRETE MOISTURE ENCOUNTER X5 USER GUIDE
29
To Next Page
Loading...
Need help?
General
