3M DFS 700

Technical Information DFS 700 / 04.2009 9-5
Symptom Possible cause Solution
Wrong configuration parameters Check configuration parameters
Sensor is dirty / masked Clean sensor Display brightness is
very low
Brightness settings are to low Check brightness settings in the
configuration parameters
GSM modem is not installed Install and connect GSM
modem
SIM card is not installed Install SIM card in GSM modem
Data service of SIM card is not
activated
Ask your SIM card provider to
activate data services
GSM connection cannot
be made
SIM card supports just one
number for different services
(data, voice, fax)
Chose SIM card with different
numbers for each service
Wrong PIN code Check SIM-PIN code
Pre-paid card is out of credit Recharge pre-paid card
No or busy phone line Connect phone line to your
modem and try to dial-up
several times
GSM connection cannot
be made
No modem connected to PC or
wrong configuration
Connect a modem to your PC
and check for correct COM port
and config.
USB device driver is not
installed
Install USB device driver
USB Cable is not connected Connect USB cable
COM port in software is different
to the COM port in the hardware
settings of the PC
Check COM port settings in
hard- and software
USB connection cannot
be made
Operating system of your PC is
too old
Install the recommended
operating system on your PC
Bluetooth connection
cannot be made
Driver for Bluetooth is not
installed
Install Bluetooth driver