Dräger Polytron 7000 Instructions For Use Manual page 79

– Peak / average
— This function can be used to select whether the Datalogger is to save peak or av-
erage values.
Select the menu items » Settings «, » Datalogger «, » Set Datalogger « and
» Peak/average « in this order, pressing the »
Select » Peak « or » Average « and press the »
Peak The maximum concentration value measured during the
selected sample time is saved.
Average The average of all concentration values measured during
the selected sample time is saved.
– Trigger on/off
— This function can be used to enable or disable the threshold criterion for saving
of concentration values.
— If this function is enabled and a suitable trigger value is selected, it is possible to
monitor the measured values for a longer period.
Select the menu items » Settings «, » Datalogger «, » Set Datalogger « and
» Peak/average « in this order, pressing the »
Select » Enable « or » Disable « and press the »
Enable Concentration values are saved only if they exceed the thresh-
old set under » Trigger value « (referred to the previously saved
value).
Disable All measured values which occur during the sample time
are saved.
– Trigger value
— This function can be used to set the trigger value.
This value refers proportionally to the whole measuring range.
Example: with a measuring range of 500 ppm a trigger value of 2 % is entered.
Then the datalogger will only store measured values (refer to the last stored meas-
ured value) that deviate by more than 10 ppm.
Select the menu items » Settings «, » Datalogger «, » Set Datalogger « and
» Trigger value « in this order, pressing the »
Use the » « and »
M
press the » « key to confirm the setting.
OK
Press the » « key to confirm the complete trigger value.
OK
« key after each selection.
OK
« key to activate.
OK
« key after each selection.
OK
« key to activate.
OK
« key after each selection.
OK
« keys to set each position of the trigger value and
The menu » Settings «
79