RKI Instruments RM-5000 Series Indicator/Alarm Unit - Manual (Page 29)

4 How to Use 4-5. How to wire
- 29 - RM-5000
EC-5002
NOTE
To construct an intrinsically safe explosion-proof system by connecting the indicator/alarm unit to a gas
detector head with an intrinsically safe explosion-proof structure, connect the dedicated Zener Barrier
between them. Read also the operating manual of the gas detector head.
RM-5002
EC-5002
Gas detector head
12
- + AC AC
11
14
13
Power supply
for pump
100 VAC
RM-5002
Gas detector head that outputs general
measurement signals
12
+ -
11
14
13