6. Operations and Functions
6-3. External output operation
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6-3. External output operation
Specifications
4 - 20 mA
Power-line
communication
system
Ethernet
Signal Transmission
System
Analog transmission (non-isolated)
2-wire type DC
power-line
communication
Ethernet
(10BASE-T/100BASE-
TX)
Transmission Path
CVVS
KPEV-S
Ethernet cable
Transmission
distance
Below 1 km
Below 300m
(depending on the
system conditions)
Below 100m
(depending on the
system conditions)
Connection Load
Resistance
Below 300
Ω
－
(1) Detection
mode
(no alarm)
4 - 20 mA (concentration output)
Concentration data
(2) Detection
mode
(gas alarm)
4 - 20 mA (concentration output)
Concentration data, Alarm bits
(3) Initial
Clear
Depending on the setting of (4)
2.5 mA setting: 2.5 mA
4 mA, HOLD, 4 - 20 mA setting: 4 mA*
Initial bit
(4) Maintenance
Mode
2.5 mA setting: 2.5 mA
4 mA setting: 4 mA*
HOLD setting: The previous value
retained
4-20 mA setting: 4 - 20 mA
(concentration output)
Concentration data, Adjustment bit
(5) Alarm Test
Output ON setting: 4 - 20 mA
(concentration output)
Output OFF setting: The previous value
retained
Concentration data, Adjustment bit, Test
bit
(6) Fault Alarm
0.5 mA (Fixed)
Fault bits
(7) Inhibit
Depending on the setting of (4)
2.5 mA setting: 2.5 mA
4 mA, HOLD, 4 - 20 mA setting: 4 mA*
Concentration data, Adjustment bit,
Inhibit bit
(8) Power
interruption
0mA Signal
OFF
* OSU - 0 - 25 vol% is equivalent of AIR (20.9 vol% = 17.4 mA)
