Dräger Polytron 8100 Notice D'utilisation page 25

Warning interval
This function defines the time interval for the warning signal.
Refer to figure K on the fold-out page.
1. Select Settings > Communication > Analog interface >
Warning interval and confirm.
2. Select the line for editing T1 and confirm.
3. Set the time and confirm.
The setting for Time T1 is displayed.
4. Select Next and confirm.
5. Select the line for editing T2 and confirm.
6. Set the time and confirm.
The setting for Time T2 is displayed.
7. Select Confirm and confirm with [OK].
Warning current
This function defines the current for the warning signal.
1. Select Settings > Communication > Analog interface >
Warning current and confirm.
2. Select the line for editing the current and confirm.
3. Set the current and confirm.
The setting for the warning current is displayed.
4. Select Confirm and confirm with [OK].
Maintenance signal
This function selects the type of maintenance signal.
Refer to figure J on the fold-out page.
1. Select Settings > Communication > Analog interface >
Maint. signal and confirm.
2. Select static or dynamic signal type and confirm.
NOTICE
i i
The static signal type is a constant current. However,
the current value can be configured.
The dynamic signal type is a square wave signal with
the following characteristics.
Maintenance current
This function defines the current for the maintenance signal.
1. Select Settings > Communication > Analog interface >
Maint. current and confirm.
2. Select the line for editing the current and confirm.
3. Set the current and confirm.
The setting for the maintenance current is displayed.
4. Select Confirm and confirm with [OK].
NOTICE
i i
The maintenance current can only be set if the
maintenance signal has been set to static.
Beam block on or off
This function is only available for Polytron 87x0 (using the
sensor PIR 7x00).
Beambl. current
This function is only available for Polytron 87x0 (using the
sensor PIR 7x00.
Dräger Polytron 8100
Beamblock limit
This function is only available for Polytron 87x0 (using the
sensor PIR 7x00.
Analog offset
This function adjusts the analog output at 4 mA without
affecting the 20 mA set point. This function is useful in an
installation where the analog current at the instrument differs
from the current at the central controller.
1. Select Settings > Communication > Analog interface >
Analog offset and confirm.
2. Select the line for editing the offset (range: -0.5 to 0.5 mA,
SIL: -0.1 to 0.1) and confirm.
3. Set the current and confirm.
The setting for the analog offset is displayed.
4. Select Confirm and confirm with [OK].
Analog span
This function adjusts the analog output at 20 mA without
affecting the 4 mA set point.
1. Select Settings > Communication > Analog interface >
Analog span and confirm.
2. Select the line for editing the offset (range: -0.5 to 0.5 mA,
SIL: -0.1 to 0.1) and confirm.
3. Set the current and confirm.
The setting for the analog span is displayed.
4. Select Confirm and confirm with [OK].
Test functions for the analog interface
NOTICE
i i
These functions change the current of the analog
interface for test purposes (e.g. to check the
programming of the central controller). It might be
necessary to inhibit the alarms at the central controller
to avoid false alarms. After exiting these functions, the
currents, if changed, will automatically return to the
maintenance signal.
During the test, the maintenance symbol [ ] is
displayed.
Set current
This function sets the current to any value between 0 and
22 mA. Analog offset and analog span are not used for this
function.
1. Select Settings > Communication > Analog interface >
Set current and confirm.
2. Once the alarms at the central controller are inhibited,
confirm the message Inhibit all alarms.
3. Select the line for editing the current and confirm.
4. Set the current and confirm.
The setting for the current is displayed.
5. Select Next and confirm.
6. Select Set current out or Current off and confirm.
7. Select Next and confirm.
The function is terminated.
8. Once the alarms at the central controller are enabled
again, confirm the message Enable all alarms.
Menu
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