D12
EX-IR
Gas Transmitter with IR Smart Sensor
Dec 2019 ( 85-0004 Rev A)
20
Wiring Examples
Power Only, No 4-20mA Connection
The example below shows how transmitters may be powered to operate the transmitter without a 4-20mA
connection. Size the power supply and wiring for the number of transmitters and the power required by
each (see S on page 11). Voltage at the transmitter terminals must not drop below 12v under full load.
Figure 11. Example of power only, no 4-20mA connection
+
-
SUPPLY
24
D12 TB1
8 V+ (12-30 VDC)
7 Gnd
6 mA(-)
5 mA(+) (12-30 VDC)
4 Remote Reset
3 Signal Com.
2 RS232-Rx/RS485-B
1 RS232-Tx/RS485-A
D12 TB1
8
7
(12v Min.)
D12 TB1
8
7
6
5
(12v Min.)