AKO 555241 Panduan Pengguna - Halaman 9

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7.- Operation

No alarms

The input indicators are green.

Pre-alarm / alarm activated

The station emits an audible alarm sound, shows the affected input(s) in red, the general alarm indicator illuminates

and the visual alarm flashes.

Wiring error / malfunction

The station emits 3 short beeps every two minutes and the affected input indicator flashes red.

Short-circuit detection in an input

If a short-circuit is detected in any given input, this input will be deactivated and the indicator corresponding to the

affected input will flash red. The general alarm indicator will also flash.

Once the problem has been resolved, to re establish functioning f the affected input, press the Mute buttonfor

more than 1 second.

MUTE Function

Allows for the sound of gas pre-alarms and alarms to be silenced. Does not affect relay or indicator functioning.

To activate it, press the Mute button at any point when a pre-alarm or alarm is activated. The display shows the

silenced alarm indicator

Optionally, it can also be remotely activated using a push-button connected to digital input 1 (DI1).

If a pre-alarm is silenced, this function will be voided by changing to an alarm or if a new pre-alarm or alarm is

activated.

Trapped person alarms cannot be silenced.

Gas alarm saved

Indicator

flashes green to indicate that a gas pre-alarm or alarm has sounded in our absence. To delete it,

press the mute button.

Set Hold Mode

Avoid false alarms during the chamber charging or cleaning process.

When this mode is activated, pre-alarms will not sound and alarms will sound like pre-alarms to all effects (sound,

relay and signal activation).

To activate / deactivate it, press the Mute key for 3 seconds; the display will show indicator

Optionally, it can also be remotely activated / deactivated using a switch connected to digital input 2 (DI2).

This mode will remain activated for a maximum of 5 hours, before automatically deactivating itself.

If it is activated using the Mute key, it will only be able to be deactivated using the same key. The same

applies to activation using digital input 2.

This mode does not affect trapped person alarms.

5552H402 Ed.03