26 Dräger Polytron 8700/8720
Settings menu
Switching the trigger on or off
1. Select Settings > Datalogger > Set datalogger > Trigger
on/off and confirm.
2. Select On or Off and confirm.
Setting the trigger threshold
The trigger threshold is specified as a percentage of the full
scale reading.
Example: A trigger threshold of 2 % is entered for a full scale
reading of 500 ppm. Consequently the datalogger will only
store measurements if they deviate (relative to the last stored
value) by 10 ppm.
1. Select Settings > Datalogger > Datalogr. on/off >
Trigger value and confirm.
2. Set the trigger value and confirm.
Setting the storage mode
1. Select Settings > Datalogger > Set Datalogger > Stack/
Roll and confirm.
2. Select the desired condition and confirm
8.5.3 Clearing the datalogger
1. Select Settings > Datalogger > Clear Datalogr.
and confirm.
2. To clear the datalogger, select Confirm and confirm.
On Concentrations will only be stored if they
exceed (relative to the last stored value)
a threshold set under Trigger Value.
Off The measurements made within the set
sampling time are always stored.
Overwrite When the capacity of the datalogger is
used up, the older data will be overwritten.
Hold When the capacity of the datalogger is
used up, no more data can be stored.
An appropriate warning is issued.
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