Endress+Hauser NAR300-13 Series - Page 3

Oil Leak Detector NAR 300 system
Endress+Hauser 3
Ex [ia] System : Ex ia IIB T4
This Ex [ia] system is set up with the Transmitter NRR 262 (Ex [ia]) in a non-hazard area such as an
instrument panel room and sends the alarm output to an annunciator or upper instrument receiver. The
signal from the Float Sensor NAR 300 is sent to the Transmitter NRR 262 (Ex [ia]) through the Sensor
I/F Ex box with Ex [ia] connections.
Float sensor NAR300 - 13xxxx
Hazard area
Non-hazard area
Ex [ia] exclusive cable use : 6 to 30m
Senser I/F Ex box (Ex [ia])
Transmitter NRR262- 2x (Ex [ia])
Power supply
: AC or DC
Alarm output:
Annunciator,
Upper instrument receiver
Ex [ia] common shielded cable use
TIIS: TC18323
EX
EX
Float sensor NAR300 - 15xxxx
Hazard area
Non-hazard area
Ex [ia] exclusive cable use : 6 to 30m
Senser I/F Ex box (Ex [ia])
Transmitter NRR262 -2x(Ex [ia])
Power supply
: AC or DC
Alarm output:
Annunciator,
Upper instrument receiver
Ex [ia] common shielded cable use
TIIS : TC18324
TIIS : TC18326
EX
EX
System block diagram