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2.2)
Detector connection
The detectors with 4-20 mA analog output are connected to the control unit, directly on the main
board. For connection, the detector with 4-20 mA analog output requires a 3-conductor cable; 2
conductors for the power supply and one conductor for the 4-20 mA signal. The typical cable
suggested is a 3 x 0.75 shielded cable that allows to reach a distance up to 100 mt between the
gas detector and the control unit.
Wiring diagram
8 7 6 5 4 3 2 1
NFG-16REL : 16 relay board (optional)
Technical specifications
Get out:
Operating temp:
Storage temp:
RH operation:
RH storage:
NFG-8
NFG-8_manu-inst_ITA
JP64
CONNECTOR 8 INPUTS
ONLY 4-20mA
16 relays contacts capacity 6 A - 250 Vac
0 ÷ 55°C
-20 ÷ +60 C°
15 ÷ 85%
5 ÷ 85% (not condensing)
5 2 6 3 7 4 8
Fig. 2-5) Card layout 16 relays
Installation and Operation
Manual
Rev A.3
- - + +
JP77
24V POWER SUPPLY FOR
GAS SENSORS
15
13
14
9
10
11
Doc. M-040.1-NFG8-EN
12
PAGE - 11
NOTIFIER ITALY
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