9023927 - 2nd edition - May 2007
Page 57 of 72 Pages
The menu » Settings «
Sensor test
This group contains the setting functions for the sensor self test.
These functions can be used only if the Polytron 7500 is equipped with the Sensor
Dongle 83 17 619 or the Sensor Diagnostic Dongle 83 17 860, see page 15.
– Sensor test setting
— This function can be used to activate or reactivate the sensor self test.
●
Select the menu items » Settings«, » Sensor «, » Sensor test « and » Set sensor
test « in this order, pressing the »
« key after each selection.
●
Use the »
« and »
« keys to select « Enable « or « Disable « and press the
»
« key to activate it.
— If the sensor self test is enabled, the Polytron 7500 continually tests the sensor in
order to ensure reliable operation. If the sensor does not pass the self test, a suit-
able warning or fault is generated.
– Sensor self-test
— This function is used to start the sensor self-test.
●
Select the menu items » Settings«, » Sensor «, » XSxx « and » Sensor self test «.
●
To start the sensor self-test (depending on the sensor and/or device status): se-
lect » Start sensor self-test « with »
« key and press the »
« key to start.
— After a few seconds the result is indicated in the display.
To terminate the function:
●
Select » Back to menu « and press the »
« key.
– Sensor lock
— This function is used to enable or disable the sensor lock.
For Polytron 7500 this function should always be switched on since only one sen-
sor with the same Part No. can be replaced.
●
Select the menu items » Settings «, » Sensor «, » XS–NF
3
« and » Sensor lock « «
in this order, pressing the »
« key after each selection.
●
Select » Enable « or » Disable « and press the »
« key to activate it.
Enable
=
Polytron 7500 will accept a new sensor only if it has the
same Part No. (= Dräger Order No.) as the old sensor and
thus the same sensor type.
Disable
=
Polytron 7500 will accept other sensor types. In this case,
Polytron 7500 uses the default settings for the new sensor,
which means that the configuration of the Polytron 7500 will
be changed.
OK
M
OK
M
OK
OK
OK
OK
