ADEMCO 651-12EX Installationsanleitung Handbuch - Seite 15

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TROU,BLESHOOTING:
The following assumes a detector operating "as received". If an optional operating mode has been selected,
relay and/or LED operation may vary, depending upon the option. It is advisable to reconnect cut option
jumpers when troubleshooting.
Trouble 1: UNlT GOES INTO ALARM INTERYfITENTLY FOR NO APPARENT REASON AND WALK-TEST
LIGHT GOES ON WHEN ALARM CONDlTlON EXISTS.
CAUSE
REMEDY
A. Rapid change In IR level In one of the zones.
Check for electric or gas heaters, open flames,
Identify source of IR or temperature change.
Use zone locator LED to confirm and inspect
electric arcs, or any objects which may be par-
zone locations. Re-position zones so that
tially in a zone which can change temperature
source of problem is no longer in a zone, by
rapidly.
using locator LED.
B. Drafts are creating motion in drapes, display
Locate source of motlon. Eliminate motion or
material or overhead lighting fixtures.
aim zones away from source If. necessary.
Walk-test unit after adjustment to confirm
coverage.
C. Birds or other small animals are entering area
(particularly in warehouses.)
D. Wrong transformer used.
Check for and eliminate all possible entry
points for birds, cats, dogs, rodents, etc. Con-
tact exterminator if necessary.
Use only No. 1319 Tmnsformer provided.
Trouble 2: UNIT GOES INTO
ALARM
INTERMlTTENTLY FOR NO APPARENT REASON AND WALK-TEST
LIGHT DOES NOT GO ON WHEN ALARM CONDITION MISTS.
CAUSE
REMEDY
A. (Nos. 656 and 651 only) Transformer not
plugged into a 24 hour AC outlet. With no AC
Check for presence of AC for 24 hours per day
on outlet. Do not use switched outlets or
supplied, the unit's standby battery may be
depleted to a point where the alarm relay will
outlets controlled by timers.
drop into the alarm state. When AC is restored
the battery recharges and the process repeats
when AC is again removed. Note: Walk-test
LED is designed to remain off during AC
power interruption to indicate that AC is ab-
sent.
B. (Nos. 650 and 651 only) Transformer or wiring
malfunction which deprives detector of AC
suPPlY*
Disconnect AC power wires from detector and
check for presence of 6.5V.AC at output term
mfnals of transformer. If absent, replace,
transformer. If present, check for 6.5V.AC
across power wires at detector. Check wires
for opens and shorts.
C. (Nos. 6566,651-6,650-12EX, 651-12EX only) DC
voltage supply to detector from panel or power
supply inadequate or absent. PROPER
POLARITY ON DC POWERED UNITS MUST BE
OBSERVED.
Check tot proper DC voltage at terminals of
detector. If absent, check for proper voltage at
panel or power supply terminals with wiring
disconnected. If present, wiring to detector is
faulted. Check for open and shorted condi-
tions in wiring. If proper DC voltage is absent,
consult instructions for panel or power supply.
Trouble 3: RELAY OPERATES NORMALLY BUT WALK-TEST LIGHT DOES NOT OPERATE
CAUSE
REMEDY
A. (Nos. 656 and 651 only) System operating from
See Trouble 2 and CAUSEIREMEDY 2A.
standby battery (AC absent) and battery
charge not yet depleted.
8. LED malfunction. Check for broken or shorted
leads.
Return Unit to Ademco for service (obtain
Return Authorization Number from Ademco
_
before returning).
C. YELLOW jumper has been cut but no external
Reconnect jumper.
LED is used.
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