Nova-Tech Temp 360 Datalogging RTD Thermometer - Manual (Page 32)

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20. MAINTENANCE
Properly used, the thermometer should
maintain calibration indefinitely and not
require service other than occasional
cleaning of the housing and changing of
the batteries.
21. CLEANING
WARNING:
TO PREVENT IGNITION OF A
HAZARDOUS ATMOSPHERE BY
ELECTROSTATIC DISCHARGE,
CLEAN WITH DAMP CLOTH.
Do not clean with abrasives or solvents.
Use mild detergents, never immerse nor
use excessive fluid.
22. BATTERIES
If there is no display when the thermometer
is turned on, check condition of the t h r e e
AA batteries. Also check that the battery
terminals are clean and batteries are
properly installed. If replacement is
necessary, refer to the BATTERY
INSTALLATION AND REPLACEMENT
section for replacement procedure.