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ImCed

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  1. Yep, seems like that's the best option. Is there any link you can provide? Because I'm still struggling at our internet connection here. Anyway, I was wondering what is the proper voltage for each loop? As I check, it has 16volts max in each loop (A,B,C,D loops), but what I know in each head, min voltage should be 18volts and 32volts at max... Any comment for this?
  2. seems like the air quality. Anyway, seems like its impossible to change the type of head from smoke to any other type unless I reprogrammed the eprom inside as per maker's advice. And, as a crew here, we are not allowed to do changes on it. Thanks mate,I got your point, but, when the technician came here 6mos ago (this problem not yet exist), he adviced us that HPO (MR901T) is ok to replace ion (mF901)without problem, because ion is not available in the market. Only optical (MR901) needs reprogramming. With regards to mcp, can you please elaborate more how to prove it? Mate, what do you mean by a reset threshold comp?
  3. absolutely, it do always happens when somebody forgot to close the door going to engine room where it is ore positive pressure than our alleyway. Yes, only smoke detectors having these faults. I just posted this problem just to extract more info, whether my deductions are correct or somebody has fresh ideas about this case. But I will try to check as well manual call points for loose connections for the sake of personal satisfaction that I checked everything that is possible in my side. Noted sir james, but I already replaced this heads with high performance optical (from ionization chamber type), still I got this faults. No im not...
  4. Hi Taco, I already replaced all heads in the faulty zone, still giving some fault. I was thinking maybe the adjacent zones triggering the alarm. I was also thinking that maybe airflow or pressure difference affecting the system. Because these heads are installed in the alleyway. Whenever we open the door and kept it open from outside, the alarm was triggered. Any ideas? Thanks. Hi James, Our system is same as our ship's age, and our ship's age is 14yrs old
  5. 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
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