OSI-RI by Fire-Lite Alarms
OSI-RI-FL Installation Guide
E56-6584-001 | October 2018
33
13 Testing and Determining the Sensitivity of the Unit
13.1 Calibrated Test Filter
13.1.1 Testing at the Imager
A quick test can be performed at the imager side by using the acrylic test filter, OSP-004.
l
Place the filter in front of the imager’s lens. The detector should enter alarm within 1 minute.
l
The detector can be reset by a command from the FACP.
l
Notify the proper authorities that the system is back on line.
At each reset action, the detector will show its set sensitivity.
After the RED alarm LED is off, the yellow alignment arrows on the front will indicate the set sensitivity by
blinking the arrows yellow to indicate the set level.
The key is; 1 blink = 25%, 2 blinks = 30%, 3 blinks = 40% and 4 blinks = 50%.
After 5 seconds, the scenario will be repeated a second time.
After this, the detector will now be in normal working condition.
13.1.2 Testing at the Reflector
A thorough test should be performed at the reflector side, see “Testing at the Imager”. The sensitivity of the
detector must be noted during the quick test at the end of the initial set-up procedure.
1. The sensitivity of the detector can be verified using the test filter to cover the reflector. The detector can
be reset through a command from the FACP.
2. Notify the proper authorities that the system is back on line.
If the detector fails this test several steps should be taken to determine if the detector is faulty or simply needs
to be re-adjusted before returning the unit.
These steps include:
1. Verify all wiring connections and appropriate power is applied to the detector.
2. Verify that the optical line of sight is free from obstructions and reflective objects.
3. Apply the maintenance procedure in this manual. Repeat the test procedure.
4. If the detector still fails the test procedure proceed with step 4.
5. Repeat the alignment procedure in this manual. If the alignment procedure is successful repeat the test
procedure. If the detector still fails the test it should be returned.
13.2 Remote Test Station
The detector can be tested remotely using the remote test station.
Follow instructions included with the test station for proper use. See Figure 11-4 (Remote Test Station) for
wiring diagram.
When activating the test, the detector will reduce the power output of the IR signal to the point where it drops
below the automatically set sensitivity at the detector.
The detector will remain in alarm condition for as long as the test switch is activated. The detector has to be
reset by the reset command from the FACP.
The remote fault LED will blink the set sensitivity of the detector. The number of blinks, similar to number of
blinks from the arrows, will represent the set sensitivity and the sequence is repeated every 3 seconds till the
detector is reset.
The LEDs at the remote test station will mimic the detector front LEDs.
Note:
For the OSI-RI-FL this test does not satisfy the requirements of NFPA72 for periodic maintenance
and sensitivity verification of beam type detectors.
Summary of Contents for OSI-RI-FL
Page 2: ......
