Product Overview
30
SharpEye™
Single IR Flame Detector User Guide
2.6.3.2
Automatic BIT
The detector automatically performs a BIT every 15 minutes. A successful BIT
sequence does not activate any indicator.
The results of a successful and unsuccessful BIT are listed in Table 8 and
Table 8: Results of a Successful BIT
Output
Result
Fault Relay
•
Wiring options 1, 2, and 4: remains closed
•
Wiring options 3 and 5: remains open
0
–
20mA
Output
Wiring options 1, 2, and 3: normal (4mA)
Power LED
Green, flashing, 1Hz on (normal)
Table 9: Results of an Unsuccessful BIT
Output
Result
Fault Relay
Wiring options 1, 2, and 4: changes to open
Wiring options 3 and 5: changes to closed
0
–
20mA
Output
Wiring options 1, 2, and 3: BIT fault (2mA)
Power LED
Yellow, flashing, 4Hz
BIT Procedure
Performed every 1 minute
2.6.3.3
Manual BIT
The BIT is manually initiated by momentarily connecting Terminal 3 with Terminal
2 (or a switch across these terminals in the safe area).
If the BIT is unsuccessful, all outputs will function as described for automatic BIT,
but the BIT now automatically executes every minute. This continues until a
successful BIT occurs, when the detector will resume normal operation.
The results of a successful and unsuccessful Manual BIT are listed in Table 10 and
Table 11.
