Because magnetic pickup flow sensors are capable of generating power, Intrinsic Safety (IS) certification is required for installations in
hazardous areas to prevent explosions from chemicals, gases or other flammable materials.
Intrinsic Safety (IS) barriers are devices that limit current, voltage, & total energy delivered to a sensor or other instrument located in a
hazardous area.
Georg Fischer Signet offers single channel intrinsic safety barriers for use with the FM (Factory Mutual) approved 515, 525 and 2517
Paddlewheel Flow Sensors. Both versions use a ½-inch wide housing that snaps into a 35 mm DIN rail.
Once mounted, an electrical connection is formed between the barrier and the rail. The rail serves as the intrinsic safety ground bus
when connected to the designated grounding point. The two additional ground lugs may be used as a redundant grounding method or
for terminating shields.
Safety barriers are polarity sensitive devices and are available in +DC and AC voltage ratings.
Mfr. Part No. 6400-9001 (Code 159 001 466) for use with Signet 515 flow sensor
Mfr. Part No. 6402-9001 (Code 159 001 486) for use with Signet 525 and 2517 flow sensors
