Control Company 4187 HYGROMETER/THERMOMETER/DEW POINT METER - Manual (Page 2)

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1. Turn the meter off by sliding the OFF/ON/HOLD switch to the OFF
position.
2. Press and hold the MEMORY button and turn the meter on by sliding
the OFF/ON/HOLD switch to ON. “ M Clr” will appear at the bottom
of the display indicating that the memory has been cleared.
Note: When cleared, all readings stored in the data logger memory will be
removed. It is not possible to clear individual readings from the data logger
memory.
ALL OPERATIONAL DIFFICULTIES
If this meter does not function properly for any reason, replace the battery
with a new high quality battery (see the “Battery Replacement” section). Low
battery power can occasionally cause any number of “apparent” operational
difficulties. Replacing the battery with a new fresh battery will solve most
difficulties.
BATTERY REPLACEMENT
An erratic display, faint display, no display, or battery symbol appearing on
the display are all indicators that the battery needs replacement. Slide the
battery cover off the back of the meter in the direction of the arrow. Remove
the exhausted battery and replace it with a new 9 volt alkaline battery.
Replace the battery cover.
WARRANTY, SERVICE, OR RECALIBRATION
For warranty, service, or recalibration, contact:
CONTROL COMPANY
4455 Rex Road
Friendswood, Texas 77546 USA
Ph. 281-482-1714 Fax 281-482-9448
E-mail [email protected]
www.control3.com
Control Company is ISO 9001 Quality-
Certified by DNV and ISO 17025
accredited as a Calibration Laboratory
by A2LA.