Service Function; Sound, Light & Mute Button; Manual Activation Of All Alarm Levels; Installation - Inficon LDM150R Manuel D'utilisation

INFICON

6. Service Function

Pressing the "Reset/Test/Service" button (5 - Fig. 1) for 10 seconds will disengage all alarm functions
for 60 minutes. During this period, it is always possible to start a new 60-minutes period by pressing
the button for 10 seconds again. Return to active status happens automatically at the end of the
60-minutes period or may be done manually by a single press on the "Reset/Test/Service"-button.
When the service function is activated all LEDs will flash and all relays will be in normal mode position.
See Fig. 4.
7. Sound, light & MUTE button
"MUTE" button (9 - Fig. 1) mutes the buzzer for 60 minutes. If gas concentration drops beneath
A-level alarm buzzer (7 - Fig. 1) is deactivated and if gas concentration drops beneath B-level alarm
LED (8 - Fig. 1) is deactivated. For more details see Fig. 2 (10).

8. Manual activation of all alarm levels

Closed contact/loop gives full sensor signal resulting in all alarm levels getting activated (11 - Fig. 1).

9. Installation

The LDM150R Remote Sensor is connected to the terminals on the main PCB-board (6 - Fig. 1).
See the wiring diagram in Fig. 1.

10. Annual Function Control

Testing the system is recommended to be done at least once a year. A basic function test can be
made using the MCT150 Monitor Calibration Tool.

11. Automatic/Manual Alarm Reset

Is managed by DIP switch (1 - Fig. 1) n
manual reset by pressing the "Reset/Test/Service" button (5 - Fig. 1 - located under the lid).

12. Alarm Time Delay

Is managed by DIP-switches (1 - Fig. 1) n
n 1 n 2
o o
ON ON No alarm delay
OFF ON (1) minutes alarm delay
ON OFF (10) minutes alarm delay
OFF OFF (30) minutes alarm delay

13. Self-Test Function

Press the "Reset/Test/Service" button (5 - Fig. 1) for 5 seconds and the test program will start and
check through all LED and all relay functions in five seconds intervals. See Fig. 3.
743-203-xxx LDM150R Operating Manual 200305
3 where "ON" means automatic reset and "OFF" means
o
1 and n
o
Alarm delay (T1)
2:
o
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