Siemens SPCK421 Spezifikationen PDF herunterladen (Seite 265)

Seismic Sensors

Seismic Sensor Testing

265

Siemens AB

A6V10276959

Security Products

18.11.2011

1. The panel activates the Seismic Test Output for the appropriate area(s) in

which the seismic zone(s) are to be tested.

2. The panel then waits for all seismic zones under test to open and then verifies

that all seismic sensors in the area enter the alarm state within the time

configured for the ‘Seismic Test Duration’. Any zone(s) that have not opened

within the maximum period are deemed to have failed the test.

3. When all seismic zones in the area are open or the maximum Seismic Test

Duration has been reached (whichever comes first), the panel will clear the

Seismic Test Output for that area.

4. The panel then waits a fixed time for all seismic detectors in the area to close.

Any zone(s) that have not closed are deemed to have failed the test.

5. The panel then waits another fixed period before reporting the test result. The

result of the test, either manual or automatic, is stored in the system event log.

The seismic output is normally high, and goes low during tests (i.e. when it is

active). If this signal is not suitable for a particular sensor then the physical output

can be configured to be inverted.

20.1.2 Automatically Testing Sensors

Seismic sensors are tested either periodically or after the system is set using the

keypad.

Periodic Automatic Testing

Periodic automatic tests are performed on all seismic zones for which automatic

tests are enabled.

Automatic tests are randomized within the configured test period and are done

independently for each area.

All seismic zones in the same area (for which automatic tests are enabled) are

tested simultaneously.

The Seismic Test Interval configuration option in the Timers [➙ 160] menu

determines the average test period for seismic sensors automatic tests. The default

value is 168 hours (7 days) and the allowed values are in the range 12 – 240

hours.

The test time is random within the specified range +/- 15%. For example, if a test is

scheduled every 24 hours, a test may be performed between 20.4 and 27.6 hours

after the last test.

A seismic test is performed after a reboot if automatic tests are enabled. If the

panel was in Full Engineer mode before reboot, then the test is performed only

after the panel is out of Full Engineer mode after a reboot.

If a seismic test fails, a Trouble event is reported (SIA code “BT”). There is also a

corresponding Restoration event (SIA code “BJ”).

Automatic Test on Setting

The option Seismic Test on Set is configurable in the System Options [➙ 154]

menu. If enabled, all seismic zones in all areas that are to be set are tested before

the usual setting sequence. This applies to keypad operation only.

While the test is being performed, ‘SEISMIC AUTOTEST’ is displayed on the

keypad. If the seismic test succeeds, the setting proceeds as normal.

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