Det-Tronics S3 Graphics - Manual (Page 130)

EAGLE QUANTUM PREMIER DEVICES 12-15 EAGLE QUANTUM PREMIER DEVICES
Version 6.0
Oi Test Fault
The detector automatically conducts Oi tests to check the integrity of the optical sensing systems. Three
consecutive failed Oi tests will generate a fault condition, which will be indicated by the LED on the face of the
detector turning yellow. The EQP Controller and S 3 software will also annunciate this fault.
In certain environmental conditions like very heavy rain, Oi test failures can occur even though the hardware is
not faulty. To compensate for this the number of failed Oi tests required to generate the fault can be adjusted
upward to a maximum of 30.
Magnetic Oi / Manual Oi
The detector also incorporates both magnetic Oi and manual Oi features that provide the same calibrated test
as the automatic Oi, and in addition actuates the Alarm to verify output operation for preventive maintenance
requirements. These features can be performed at any time and eliminate the need for testing with a non-
calibrated external test lamp.
The magnetic Oi test is performed by placing a magnet by the marked location (mag Oi) on the outside of the
detector. The manual Oi test is accomplished by selecting the Oi Test button on the Point Display in the S 3
software. The magnet must be held in place for a minimum of 6 seconds to complete the test.
Either of these test methods activates the calibrated IR emitters. If the resulting signal meets the test criteria,
indicating that greater than half of the detection range remains, the alarm status message to the EQP controller
changes state. The indicating LED will change to red, and the analog signal displayed in the tracking area of the
S 3 point display goes to maximum.
This condition remains until the magnet is removed or the software test is complete. If the alarm LED is configured
for non-latching operation, it will change states and the red LED will turn to green. If the unit has latching LED’s,
the detector’s operating software will automatically reset the relays with no operator action required.
If less than half of the detection range remains, no alarm is produced and a fault is generated. The fault indication
can be reset by momentarily applying the magnet or via S 3 software command.
MIR X3301 • OI TEST FAULT