Instructions

UM-0085-B09 DT80 Range User Manual Page 274

Safe Mode

If there is an error in the DT80's profile settings or the job that is automatically loaded following hard reset then you may

find that you are unable to communicate with the logger. For example – the startup profile specifies the wrong RS232

parameters (and you're not sure what they are), or the job specifies an immediate

1SERIAL channel with a very long

timeout (and the serial channel is not connected to anything).

Safe Mode provides a mechanism to regain control and fix the problem. To select safe mode you need to perform a

"triple-push" reset:

1. Press the manual reset button

2. Wait approximately 3 seconds, then press the reset button again.

3. Wait approximately 3 seconds, then press the reset button a third time.

4. Verify that DT80 restarted / Safe mode is displayed on the LCD.

This will have the same effect as a hard reset, except that:

• all profile settings are ignored – factory default settings are used (for example, the host port parameters will be

set to 57600,8,N,1,SWFC)

• no job is loaded

• any queued unload or alarm messages will not be attempted

Note: the profile settings are not cleared – they are simply ignored for this session only. If you now do a normal hard reset they will once

again be loaded.

Factory Settings

To restore the DT80 to factory default settings, send the FACTORYDEFAULTS command, which will reset all profile

settings to their factory defaults, then perform a hard reset.

Note: this command does not delete any files from the internal file system. The DELALLJOBS command may be used to remove all

jobs and all logged data.