Maintenance; Battery Replacement - Extech Instruments RHT35 User Manual

Maintenance

Battery Replacement

The battery compartment is located on the back of the datalogger as shown in the Descriptions
section. When the battery symbol flashes on the display, replace the batteries promptly.
1. Using a large coin, rotate the battery compartment lid clockwise approximately one
quarter turn to open the compartment
2. Replace the two (2) CR2032 batteries with positive (+) side facing up
3. Replace the battery compartment lid and turn counterclockwise to secure it
4. Dispose of batteries in accordance with country, state, and local regulations
Never dispose of used batteries or rechargeable batteries in household waste.
As consumers, users are legally required to take used batteries to appropriate
collection sites, the retail store where the batteries were purchased, or wherever
batteries are sold.
Disposal: Do not dispose of this instrument in household waste. The user is obligated to
take end-of-life devices to a designated collection point for the disposal of electrical and
electronic equipment.
Battery Status Check
To check the approximate number of days of battery life remaining, short press the MARK button.
The display will show the number of days and the 'd' for days (XXd).
Cleaning
Wipe the datalogger with a damp cloth, do not use solvents or abrasives as these may damage
the datalogger finish and display lens.
Error Display Codes
ERROR CAUSE
E02 Measured value below specified range
E03 Measured value above specified range
E04 Temperature error
E11 Humidity calibration failed
E31 Microprocessor failed
E33 Humidity measurement error
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10
SOLUTION
Operate in the specified range
Operate in the specified range
Contact Extech for service
Contact Extech for service
Contact Extech for service
Contact Extech for service
RHT35-en-GB_V1.0 04/17