D200-51-00
2
I56-548-06
Figure 1:
2. Tamper-Resistance
Model 1251 includes a tamper-resistant capability that
prevents its removal from the bracket without the use of
a tool. Refer to the base manual for details on making
use of this capability.
3. After all sensors have been installed, apply power to the
system.
4. See Figure 2. Test the sensor by positioning a test mag-
net (M02-24) against the sensor plastic just to the left of
LED1. The alarm level should be recognized at the panel
and the LED controlled by communication command
from the panel.
5. Reset the sensor by communication command from the
panel.
Testing
Detectors must be tested after installation and following
periodic maintenance. However, before testing, notify the
proper authorities that the smoke detector system is under-
going maintenance and the system will be temporarily out
of service. Disable the zone or system undergoing mainte-
nance to prevent unwanted alarms.
In addition, check to ensure that the LEDs blink. If they do
not, power has been lost to the detector (check the wiring),
or it is defective (return it for repair).
Test the sensors as follows:
A. Test Magnet (Model M02-24 -optional)
1. Test the sensor by positioning the optional test mag-
net against the sensor plastic just to the left of LED1,
as shown in Figure 2.
2. Both LEDs should latch on within 30 seconds, indicat-
ing an alarm and annunciating the panel.
B. Calibrated Sensitivity Test (MOD400R)
Use the MOD400R Test Module with a digital or analog
voltmeter to test calibrated detector sensitivity as de-
scribed in the test module manual.
C. Aerosol Generator in accordance with NFPA 72.
The Gemini Model 501 aerosol generator can be used to
test the sensor. Set the generator to represent 4%/ft to
5%/ft obscuration, following the instructions in the gen-
erator manual. Use a bowl shaped applicator to apply
aerosol to the sensor. It should alarm after 30 seconds.
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