RHT50-en-GB_V2.4 4/15
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Battery Replacement
It is highly recommended that the battery be replaced every 12 months, or prior to logging critical data.
The RHT50 does not lose its stored readings when the battery weakens or when the battery is replaced; the data
logging process will however be stopped and cannot be re-started until the battery has been replaced and the
logged data has been downloaded to PC.
Use only 3.6V lithium batteries. Before replacing the battery, remove the datalogger from the PC. Follow
diagrammatic steps below.
NOTE: Leaving the RHT50 plugged into the PC USB port longer than necessary will cause some of the battery
capacity to be lost.
1. Unscrew the protective sensor cap counter-clockwise.
2. Remove the protective cap and safely set it aside.
3. While inserting a small flat blade screwdriver into the slot and applying moderate pressure to the
locking tab, pull the front (USB side) of the RHT50 outward.
4. Completely disassemble the meter to access the battery compartment.
5. Insert battery.
6. Re-assemble the meter.
7. Replace the cap.
8. Hand-tighten the cap in a clockwise motion. Do not over tighten.
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WARNING:
Handle lithium batteries carefully, observe warnings on battery casing. Dispose of in
accordance with local regulations.
You, as the end user, are legally bound (
EU Battery ordinance
) to return all used batteries,
disposal in the household
garbage is prohibited!
You can hand over your used batteries / accumulators at collection points in your community or
wherever batteries / accumulators are sold!
Disposal:
Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle
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