Spectrex SharpEye 40/40M, Руководство пользователя

Страница: 32 / 90

Multi IR Hydrocarbon and Hydrogen Flame Detector User Guide
32 Internal Detector Tests
Automatic BIT
1.6.2.2
The detector automatically performs a BIT every 15 minutes. A successful
BIT sequence does not activate any indicator.
All outputs of BIT results function as described in Table 10 and Table 11,
and the BIT is automatically executed every 1 minute.
This sequence continues until a successful BIT occurs, when the detector
resumes normal operation.
Table 10: 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 11: 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