Oil Leak Detector NAR 300 system
2 Endress+Hauser
System block diagram
Oil Leak Detector NAR300 system can select from 3 type of system structure by application
Ex d System : Ex d[ia] IIB T4
This Ex d[ia] system can monitor every process of oil leak detection to alarm output at outside
hazardous area.
The circuit is IS from the Float Sensor NAR 300 to the connecting terminal box of Transmitter NRR
261(Ex d[ia]).
The Transmitter NRR 261 (Ex d[ia]) can connect directly to a junction box or gauge relay input
located outside the yard.
Float sensor NAR300-11xxxx
Transmitter NRR 261-2xx (Ex d[ia])
Alarm output:
Junction box (Ex d construction)
Level gauge etc.
Power supply: AC or DC
IS exclusive cable use : 6 to 30m
TIIS: TC18322
Hazard area
EX
System block diagram
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