6
6. Alternately, insert the RH sensor into the sleeve immediately after setting the
sleeve. Readings can then be taken as soon as the hole has acclimated.
CAUTION - ABOUT THE RH/T SENSOR
Continued exposure to high temperature and humidity, chemical vapors, and any other
corrosive environment will accelerate inevitable sensor aging, loss of calibration, and
possible permanent damage. The sensor always must be stored inside the pouch in
which it was received and in a clean, dry place when not in use. It is best to keep the
meter and sensor in the carrying case. We recommend checking calibration periodically
with either a “reference sensor” which is kept strictly for this purpose, or a salt solution.
Both are available from Delmhorst or your supplier.
CARE OF YOUR METER
Store your meter in a clean, dry place. The protective carrying case provided is an
ideal storage place when the meter is not in use. If the meter has been left in a hot
or cold environment overnight or for an extended period, allow the meter to
acclimate to the temperature conditions in which it will be used for minimum 1-2
hours, or as long as possible.
Clean the meter with any biodegradable cleaner. Use the cleaner sparingly and on
external parts only. Keep cleaner out of the sensor input connector.
After each use, place the RH/T-S1 sensor in the static-free bag it was shipped in and
keep in the carrying case or a clean, dry environment.
Remove the battery if the meter will not to be used for one month or longer.
SERVICE FOR YOUR METER
WARRANTY
Delmhorst Instrument Co., referred to hereafter as Delmhorst, guarantees the HT-
4000 meter for one year from date of purchase and the RH/T-S1 and RH/T-S3
sensosr against defects in material or workmanship for 90 days
. If, within the
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