System Operation
30 Autopulse-442R 50098:F 05/24/2001
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The piezo (local buzzer) generates different tone patterns for different event conditions:
• Alarm. Generates a steady tone, no pulse.
• Trouble. Pulses one second on, one second off. Repeats 30 pulses per minute.
• Supervisory. Pulses one-half second on, one-half second off. Repeats 60 pulses per minute.
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Output circuit #4 can be used as an input for monitoring supervisory devices such as valve tamper
switches. (Note that SW1 DIP switch #2 must be set “ON”—see “Setting Mode of Operation” in
Section 2.10.) After the panel is programmed for supervisory service, a short circuit on this input
(activation of a N.O. contact) will cause the supervisory LED to flash. The piezo sounder will
generate a unique sound. TONE SILENCE will silence the piezo and cause the LED to illuminate
steadily. Supervisory signals latch and require RESET to clear. An open circuit will be reported as
a circuit trouble.
Note: The Initiating Device Circuit for sprinkler supervisory zone can be programmed for tracking
operation; latching operation is the default setting. Canadian regulations require latching
operation; for programming instructions, see “Last Event Recall” in Section 3.7.
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If a zone has been disabled, an alarm that occurs on
that zone will flash the red zone LED, but not the
piezo or any output circuit. If both power sources
are removed from the system, all zones will be re-
enabled upon restoration of power. Disable status
will be lost.
The Zone Disable routine makes use of the four
panel switches as follows:
1. Press and hold in the TONE SILENCE
switch.
2. With the TONE SILENCE switch held in,
press (in sequence) the ALARM SILENCE
switch, the ALARM ACTIVATE switch,
and then the RESET switch.
3. The Zone 1 Alarm LED will flash.
4. To disable Zone 1, press the RESET switch. The Zone 1 yellow LED will light to show that
the zone is disabled.
Note: The RESET switch toggles disable status for the selected zone.
5. To select the next zone, press the ALARM SILENCE switch.
6. To select the previous zone, press the ALARM ACTIVATE switch.
7. When disable selections are complete, release the TONE SILENCE switch.
If any zone has been disabled, the trouble relay will activate and System Trouble LED will flash.
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