RHT10 Datasheet, PDF (3/11 Pages) Extech Instruments Corporation. – Registrador de Humedad / Temperatura

LED Status Guide
LED Status
REC ALM
REC ALM
Indication
Both LED lights OFF
Logging not active
Or
Low Battery
One green flash every 10 sec. *
Logging active, no alarm condition**
Action
Start logging
Replace battery and
download the data
REC ALM
Green double flash every 10 sec.
Delayed start
Red single flash every 10 sec. *
Logging active, low alarm condition for RH***
To start, hold the start
button until Green and
Yellow LED flash
REC ALM
Red double flash every 10 sec. *
Logging active, high alarm condition for RH***
Red single flash every 60 sec.
Low Battery****
Yellow single flash every 10 sec. *
Logging active, low alarm condition for TEMP***
If logging, logger will stop
automatically. No data will
be lost. Replace battery
Yellow double flash every 10 sec. *
Logging active, high alarm condition for TEMP***
Yellow single flash every 60 sec.
Logger memory full
Download the data
* To save power, the logger’s LED flashing-cycle can be changed to 20s or 30s via the supplied software.
** To save power, alarm LEDs for temperature and humidity can be disabled via the supplied software.
***When both temperature and relative humidity readings exceed alarm level synchronously, LED status indication
alternate every cycle.
****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.
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User Manual for Model RHT10 Version 1.3 March 2007