LED STATUS GUIDE
LEDs
Indication
Action
REC ALM
Both LED lights OFF
Logging not active
Or
Low Battery
Start logging
Replace battery and
download the data
REC ALM
One green flash every 10 sec. *
Logging, no alarm condition**
Green double flash every 10 sec. *
Delayed start
To start, hold the start
button until Green and
Yellow LED flash
REC ALM
Red single flash every 10 sec. *
-Logging, low alarm for RH***
Red double flash every 10 sec. *
-Logging, high alarm for RH***
Red single flash every 60 sec.
- Low Battery****
If logging, it will stop
automatically. No data will
be lost. Replace battery
and download data
REC ALM
Yellow single flash every 10 sec. *
-Logging, low alarm for TEMP***
Yellow double flash every 10 sec. *
-Logging, high alarm for TEMP***
Yellow single flash every 60 sec.
- Logger memory full
Download 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.
For example: If there is only one alarm, the REC LED blinks for
one cycle and alarm LED will blink for next cycle. If there are two alarms, REC LED will not
blink. First alarm will blink for first cycle and the next alarm will blink for next 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.
*****
To use the delay function. Run the datalogger Graph software, click on the computer icon on
the menu bar (2nd from left) or select LOGGER SET from the LINK pull-down menu. The
Setup window will appear, and you will see there are two options: Manual and Instant. If you
select the Manual option, after you click the Setup button, the logger won't start logging
immediately until you press the yellow button in logger's housing.
