EMS SYSTEM 7000
7703 INSTALLATION, ISSUE V2.2 – 13/04/10
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5.3 Keyswitch
5.3.1
With the keyswitch in the
CLEAR
position, the green CLEAR and Amber POWER LED's are
ON. This signifies the 7703 is active and waiting for signals from the assigned
transmitters. If a signal is received at the same time of switching from reset to clear the
anti-false
alarm function will hold the 7703 in test (with the alarm relay locked) until the
signal ceases, when clear mode will automatically be activated.
5.3.2
Turning the keyswitch to
RESET
will cancel all functions activated. The display will be
cleared and all LED's will return to their normal status: i.e.,
(a) The CLEAR LED will be of OFF.
(b)
The relays will be held inactive, no alarm can be caused.
(c) An active audible warning will be turned OFF.
(d)
An audible warning will bleep 3 times every 2 minutes to indicate CLEAR mode is
NOT selected.
5.3.3
With the keyswitch turned to the
TEST
position this allows the 7703 and its assigned
transmitters to be tested. The relays will be held inactive, no alarm can be caused,
although "Full" alarm, "Local" alarm and "Low Battery" LED’s will respond to signals from
the transmitters.
The display LED’s will momentarily operate and the audible warning will operate if the
options were previously selected.
5.4 Visual Instructions
(a)
CLEAR:
Green "clear" LED on and steady signifies the system is active, waiting for an
Alarm signal. This LED will turn off if a "Full" or "Local" alarm is received. The "Clear" LED
will flash if the memory block for recording the identity of the system transmitter identities
is empty.
(b)
TEST :
Red "test" LED on signifies the system is ready for testing. The relays are locked
and cannot cause an alarm. The radio interference LED will light if a system transmitter in
range is operated or, for any radio interfering signal tuned to the same channel as the
receiver.
(c)
ALARM:
When an alarm signal is received the RED alarm LED will light and alarm relay de-
energise. The LED will remain on until system is reset. The user can select for latching or
momentary operation of the alarm relay at the time of commissioning.
(d)
LOCAL:
When a "Local" signal is received the GREEN local LED will light and local relay
energise. The LED will remain on until the system is reset. The user can select for latching
or momentary operation of the local relay at the time of commissioning.
(e)
LOW BATTERY:
The amber LED will flash to indicate when the receiver battery or the DC
supply is low. The LED will continuously light if a low battery signal is received from a
transmitter.
(f)
POWER:
The power LED is ON when the unit is powered from the mains and FLASHES if
the mains is interrupted. This is latched, if the interruption is for more than 4 minutes. It
will remain latched until the key is turned to the RESET position.
