- 6 -
MOUNTING PLATE ORIENTATION
FOR W ALL MOUNTING
“B”
“A”
“C”
“B”
“C”
“A”
Octagonal
Electrical Box
(Use diagonal
holes: Set “A”
or Set “B”)
Rectangular
Electrical Box
(Use holes
Set “C”)
Rectangular
plaster ring
Circular
plaster ring
UP
FIGURE 4: ELECTRCAL BOXES AND MOUNTING PLATE
6.
STCP-1000 SERIES OPERATING INSTRUCTIONS
a.
POWER ON:
When A.C. power is applied, the propane gas detector requires a
warm-up period to stabilize the sensor element of approximately 3 minutes. The
green LED will flash during this period. When the green LED lights on solidly, the
detector begins to detect propane gas concentrations once a second.
b.
TROUBLE CONDITION:
The internal micro-controller continuously monitors the
sensor and other critical components. If an internal failure of any of these
components occurs, the detector will flash the red LED and buzzes four times every
30 seconds.
c.
ALARM MODE:
When propane gas concentration exceeds calibrated level (10-
25% L.E.L.), the detector will sound ”beep-beep” and turn on the red LED. If this
dangerous condition lasts for 4 seconds, the propane gas detector will latch on
alarm mode for 5 minutes with the red LED turning on and the buzzer sounding
continuously. During this 5 minute period, the detector will cease sensing gas
concentrations and the green LED will flash to indicate same. If the propane gas
level still persists beyond the calibrated level after 5 minutes, the detector will
continue to alarm until the propane gas clears.
d.
TESTING:
IMPORTANT!
TEST
MONTHLY TO ENSURE PROPER
OPERATION
.
Test the detector by pushing the TEST/RESET button on the cover
and hold it down. This will simulate a concentration of a propane gas exceeding the
safety level. If all the electronic circuit and buzzer module are working, the detector
will turn on the red LED and sound the buzzer continuously.
Do not try to test this
detector in any other way.
If the detector does not respond properly, check the fuse or circuit breaker
supplying power to the detector circuit. If the alarm still does not sound the unit may
be defective or have other failure and should be returned for service (see section
11).
