User's Manual

Technical description

2 Technical description

2.1 Design

2.1.1 Controls and indicators

The following figure shows the loggers’ ON/OFF switch and control lamp.

Item

Description

On/Off contact area

I/O control lamp

Here you find some possible states of the logger’s control lamp .

LED status Description

green (1 x per second) logger is switched on

red (regularly) logger is sampling (flashing is according to log interval)

blue (1x each 10 seconds)

logger is checking for radio signal

blue (rapidly) during data transfer via radio

blue (constantly) during connection to radio signal

green (unsteady) GSM operations are done, data are transmitted

green (constantly) logger is dialing in to GSM network

red (constantly) Error !!

• common GSM error, e.g. powering up modem failed,no

SIM card detected, dial in unsuccessful, error during ftp

data transfer - (LED turns off when modem was

successfully turned down)

• wrong PIN code - (flashing red 3x before turning on

constantly)

• SIM-card blocked, PUK needed - (flashing white 3x

before turning on constantly)

Control lamp states