AUTOPULSE IQ-396X Programming
Doc.
50402
:
B 07/22/96
33
Using alarm sensitivities below 0.50%/ft obscuration requires a 90-day test to ensure
that the detector environment is suitable for the higher sensitivity setting. To meet
Ansul and Underwriters Laboratory requirements, test each detector planned to
operate below 0.50%/ft obscuration as follows:
1. Set the detector as follows:
Required Testing
for Detectors Set
Below 0.50%
a) Initially set to the 0.50%/ft obscuration alarm level.
b) Set the Pre-Alarm level to the desired final alarm sensitivity.
c) Set the Pre-Alarm to Alert mode (non-latching).
2. Operate detectors continuously for 90 days with all environmental factors
including temperature, humidity, air flow, occupancy, etc.similar to the in-
tended application for the detectors. Record all events for each tested detector
with an electronic history file or a printout.
3. At the end of the 90 day test: An authorized Ansul representative, or an end user
trained by an authorized Ansul representative must inspect the results of the test.
If the test results show no alarms or Pre-Alarms for the tested detectors, repro-
gram the fire alarm system to set the alarm sensitivity to the more sensitive Pre-
Alarm level.
Nominal Detector Sensitivity Settings
