Extech Instruments RHT10 User Manual page 12

RHT10 LED STATUS GUIDE
*
** To save power, alarm LEDs for temperature can be disabled via the supplied software.
†
‡ When both temperature and relative humidity readings exceed alarm level simultaneously,
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LEDs Meaning
No LEDs flashing
Record Alarm
‐No logging in process
Or
‐No battery found
Or
‐Battery completely discharged
Green single flash every 10 sec. *
Record Alarm
‐Logging, no alarm**
Green double flash every 10 sec. *
‐Delayed start
Red single flash every 10 sec. *
Record Alarm
‐Logging, low alarm for RH
Red double flash every 10 sec. ‡
‐Logging, high alarm for RH
Red single flash every 60 sec.
‐ Low Battery
Yellow single flash every 10 sec. *
Record Alarm
‐Logging, low alarm for TEMP
Yellow double flash every 10 sec. ‡
‐Logging, high alarm for TEMP
Yellow single flash every 60 sec.
‐ RHT10 memory full
To save power, the RHT10's LED flashing cycle can be changed to 20s or 30s via the supplied software.
When the battery is low, all operations will be disabled automatically. NOTE: Logging
automatically stops when the battery weakens (logged data will be retained). The supplied
software is required to restart logging and to download logged data.
LED status indication alternates every other cycle.
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Action
Fit battery in place
Replace the battery and
download the data
To start, Hold the start button
until Green and Yellow LED flash
Logging, if enabled, will stop
automatically. No data will be
lost. Replace battery
†
Download data
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