4. How to Use
4-4. How to wire
- 20 -
NOTE
The 24 VDC terminals 1 and 2 are unavailable for the Ethernet and PoE specifications. (Connection
prohibited)
The 4 - 20 mA terminals 3 and 4 are unavailable for the 2-wire type DC power-line communication
system (NT) specification. (Connection prohibited)
<Specifications of Terminal Plate>
Specifications of terminal plate
Rated voltage: 250 VAC
Rated
current:
20
A
Terminal
size:
M4
<Grounding>
Connect the gas detector to your grounding terminal.
<How to Use Communication Connectors>
To use Ethernet or PoE connection, insert a LAN cable to the communication connector (RJ45) at the back
of the main unit.
WARNING
To operate the gas detector on 200 VAC system, prepare a power cable that supports 200 VAC.
The power cable is provided only for the case that the power voltage is 100 VAC system (requested).
The provided power cable supports 100 VAC.
CAUTION
The terminal plate specifications given on the left does not
mean the connectable load capacity.
WARNING
Before turning on the gas detector, never fail to connect it to a grounding terminal.
For stable operation of the gas detector and safety, it must be connected to a grounding terminal. Do
not connect the grounding wire to a gas pipe. The grounding must be made as D type grounding (below
100
Ω
of grounding resistance).
Main unit grounding terminal: Make sure to ground the gas detector using 3P power cable.
Communication connector: Connect a LAN cable.
* A dust-proof cap is attached prior to shipment.
Protective grounding:
Make sure to ground the gas detector.
