VEGA CONTROLS VEGATRENN 149A Ex Intrinsically Safe Galvanic Isolator

VEGA CONTROLS VEGATRENN 149A Ex

Function: The Ex separator is used for intrinsically safe powering of Ex approved 4 20 mA/HART® sensors. The instrument creates a galvanic separation between sensor circuit and processing circuit. enabling the Ex and non-Ex areas to be separated safely and reliably.

VEGATRENN 149A Ex can also be used as a simple power supply for 4 20 mA sensors in non-Ex areas.

Application: VEGATRENN 149A Ex is implemented in all areas of industry with Ex applications.

Technical:

 

 

Series	mounting on carrier rail 35 x 7.5 according to EN 50022
Terminals	coded, pluggable screw terminals,max. wire cross-section 2.5 mm²
Protection	IP 20
Operating voltage	20 to 253 V AC, 50/60 Hz, 20 to 253 V DC
Power consumption	max. 2,4 W
Ambient temperature	-20 to +50 °C
Approval	ATEX II (1) G D [EEx ia] IIC
Sensor circuit, Supply voltage	16,7 V ±0,2 V (bei 20 mA)
Sensor circuit, Open-circuit voltage	26 V ±5 %
Sensor circuit, Short circuit current	? 32 mA
Sensor circuit, Internal resistance	328 Ohm
Processing circuit, number	1
Processing circuit, Open-circuit voltage	24 V, ±10 %
Processing circuit, galvanic separation	to all other circuits
Max. load (load resistor) without communication resistor	0 to 700 Ohm
Max. load (load resistor) with communication resistor	0 to 450 Ohm