Hello fellas,
I am working in a ship as an electrical officer. Problem I'm encountering right now is that one of our zone in a loop is having an High Ident alarm.
Let say, In loop B, it is divided in to 3 zones namely zone 5,6,7. They are separated with Line Isolators. Recently, we are receiving High Ident in Zone 5.
All devices within zone 5 has High Ident Alarm except manual call points. Ok, in zone 5, we have 7 sensors, 4pc are smoke detectors and 3pc manual callpoints.
Below are their wiring diagram.
Panel-----B1(M)-----B2(S)-----B3(S)-----B4(M)-----B5(S)-----B6(S)-----B7(M)-----LI-----B8(S)-----B9(S)-----B10(S)-----LI-----B11(M)-----Panel.
So, zone 5 is from B1 to B7. this are installed in the alleyway.
I already replaced the sensor from ionization to high performance optical, already replaced some of the bases, line isolator between 7cand 8, yet, I still receive same alarms specially when people are comming in and out in the door.
Please enlighten me.
Thanks