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RHT50-en-GB_V2.4   4/15 

6

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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2

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6

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5

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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 

 
 

Copyright 

©

 2014-2015 FLIR Systems, Inc. 

All rights reserved including the right of reproduction in whole or in part in any form 

ISO-9001 Certified 

www.extech.com

 

Содержание RHT50

Страница 1: ...User s Guide Humidity Temperature Pressure Datalogger Model RHT50 ...

Страница 2: ...supplied with a long life lithium battery which can typically allow logging for one year This meter is shipped fully tested and calibrated and with proper use will provide years of reliable service Features Memory 10 000 temperature humidity and pressure readings Selectable data sampling rate 1 minute to 18 hours Manual and automatic start Status Indication via Red Yellow LED and Green LED USB Int...

Страница 3: ...er software as described in the next section INSTALLING THE USB DRIVER Plug the RHT50 into an available USB port on the PC If this is the first time that the RHT50 has been connected to the particular port on the PC the following screen will appear Make sure the program disk is still in the PC CD ROM drive Select the recommended installation and follow the on screen prompts to complete the driver ...

Страница 4: ...eset Green flashes six Start Logging Red Red double flash every 30 sec Low battery Red single flash Logging alarm event Red flashes six Stop logging Yellow Yellow flash every 20 seconds Memory full Connect the datalogger to the PC and download data Replace the battery data will not be lost Logging will stop data will remain in memory Occurs if an alarm is exceeded Flash cycle time is set from the ...

Страница 5: ...Hysteresis 0 24 FSO Temperature coefficient 0 1 FSO Notes FSO Full Scale Output 1psi 68 947 mbar 0 068947 bar 1 psi 6894 7 Pa 68 947 hPa 6 8947 kPa Resolution 0 1 RH 0 1o C F 0 1hPa Data storage 10 000 measurements Logging rate Selectable sampling interval From 1 minute up to 18 hours Operating temperature 35 to 80o C 31 to 176o F Battery type 3 6V Lithium 1 2 AA SAFT LS14250 Xeno XL050F or equiva...

Страница 6: ...e 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 1 2 3 6 7 8 5 4 WARNING Handle lithium batteries carefully observe warnings on batte...

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