Dev. Alarm level = 2 x (Detector Peak Level minus engine Maximum actual level).
6. Repeat for each detector on each engine by using ← key to return to the required Detector
Status screen. Note the required deviation alarm level in the range 0.05 to 0.5mg/l for each
detector. If the calculated value is outside these limits set the alarm level to the nearest
value in the range.
7. To set the deviation alarm levels, select 2. Set Deviation Alarm from Set Alarms menu,
Figure 54,
Figure 60 Set detector deviation alarms Engine Selection
8. Select the required engine.
Figure 61 Set Deviation Alarms
9. Select the required detector. Enter new Deviation Alarm Level for each detector on each
engine.
10. It may become necessary over a period of time,
characteristics, to readjust the alarm levels.
2.9 COMMISSIONING THE SYSTEM
Following the installation of the system the functionality should be checked to ensure that the system is
operating correctly, and the required responses are produced by the AMS.
2.9.1 Visual Inspection
On each detector check that the green Pow
off.
On the Control Panel
On the LCD check that a bar graph is displayed for each of the engines configured. Press the Engine
Display / Hold button and use the ▲/▼ keys to select each engine. Check that the correct number of
detectors are displayed and that the Alarm levels indicated on the bar graphs are as expected.
2.9.2 Relay operation.
Each of the relay connections between the Control Panel and the AMS should be tested and the required
response observed.
The operation of the Fault and Common Alarm relays may be tested with User level access however
Engineer Level access is required to test the operation of the Slowdown/Shutdown relay.
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