3 How to Use
3-3. Wiring
FP-300AGZS
- 16 -
3-3. Wiring
3-3-1. Precautions
(1) Use a shielded cable (CVVS cable, etc.) for signal cables like current output to minimize the influence
of noise.
(2) Turn the power switch OFF (
side) before wiring. If wiring is performed with the power switch turned
on, the gas monitor may be damaged by short circuit, etc.
3-3-2. Terminal diagram
[1] Precautionary alarm (WARNING) output ............ No-voltage contact ("c" contact)
[2] Main alarm (ALARM) output ............................... No-voltage contact ("c" contact)
[3] Fault alarm (TROUBLE) ..................................... No-voltage contact ("c" contact)
[4] Current output (4 - 20 mA) .................................. Pay attention to the polarity.
Concentrations between 0 and F.S. are output to the linear.
0:
4 mA
F.S.
：
20 mA
Trouble:
0.5 mA
Initial clear:
2.5 mA
Maintenance: 2.5 mA
Gas concentrations over F.S. can be output up to 22 mA.
[5] Power input ......................................................... 100 - 240 VAC
Each alarm contact is rated at 125 VAC 0.5 A. Depending on the load to be connected, a protective part like
spark killer may be required to maintain the performance.
Layout of external connection terminal plate
Current output
(4-20 mA)
[4]
(Not used)
Precautionary alarm
(WARNING)
[1]
Main alarm
(ALARM)
[2]
Fault alarm
(TROUBLE)
[3]
Power input
(100 - 240 VAC)
[5]
