Spectrex SharpEye 40/40U, Руководство пользователя, Страница: 31 / 84

Product Overview
TM40/40U Rev. (Af), February 2019 31
2.6.3.2 Automatic BIT
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 9 and Table 10, and the
BIT is automatically executed every 1 minute.
This sequence continues until a successful BIT occurs, when the detector resumes
normal operation.
Table 9: 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 10: 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).
The results of a successful and unsuccessful Manual BIT are listed in Table 11 and
Table 12.