User Manual for Model RHT10 Version 1.3 March 2007

3

LED Status Guide

LED Status

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 active, 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 active, low alarm condition for RH***

Red double flash every 10 sec. *

Logging active, high alarm condition for RH***

Red single flash every 60 sec.

Low Battery****

If logging, logger will stop

automatically. No data will

be lost. Replace battery

REC ALM

Yellow single flash every 10 sec. *

Logging active, low alarm condition for TEMP***

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.

alternate every cycle.

the battery weakens (logged data will be retained). The supplied software is required to restart logging and to

download logged data.