Wenglor FX2Q121, Pressure Sensor

weFlux2 pressure sensors measure the relative pressure of any desired media in closed systems. The pressure acting upon the sensor is converted to an electronic signal. The analog outputs read out the measured pressure and temperature values as 4 to 20 mA signals.

• Pressure and temperature measurement with a single sensor
• Compact, laser-welded stainless steel 316L housing
• 2 analog outputs: 4 ... 20 mA
• Temperature-compensated pressure measurement

Sensor-specific data
Measuring Range	0 ... 0.25 bar
Measurement Type	relative
Maximum overload pressure	1 bar
Bursting pressure	1.5 bar
Medium	Liquids, gases
Temperature Measurement Range	-40 ... 125 °C
Response time (t90) Temp	< 1 s
Pressure response time (t90)	< 10 ms
Temperature Measurement Accuracy	< ± 1 °C
Measuring error (total)	± 0.5 %
Hysteresis	< ± 0.1 %
Linearity Deviation	< ± 0.5 %
Zero-point error	< ± 0.1 %
Repeat Accuracy	< ± 0.1 %
Temperature coefficient zero-point	<± 0,05% /10K
Temperature coefficient range	<± 0,05% /10K

Environmental conditions
Temperature of medium	-40 ... 125 °C**
Ambient temperature	-25 ... 80 °C
Storage temperature	-25 ... 80 °C
EMC	DIN EN 61326-2-3
Shock resistance per DIN IEC 68-2-27	50 g / 11 ms
Vibration resistance per DIN IEC 60068-2-6	10 g (10...2000 Hz)

Electrical Data
Supply Voltage	12 ... 32 V DC
Current Consumption (Ub = 24 V)	< 15 mA
Number of analog outputs	2
Analog Output	4...20 mA
Signal source	Pressure
Resolution	> 11 bit
Current Output Load Resistance	< 500 Ohm
Short Circuit Protection	yes
Reverse Polarity Protection	yes
Protection Class	III

Mechanical Data
Sensor element	Ceramic membrane
Housing Material	Stainless steel, V4A (1.4404/316L)
Material in contact with media	Stainless steel, V4A (1.4404 / 316L)Rubber, PTFECeramic
Degree of Protection	IP65 *
Connection	M12 × 1; 4-pin
Process Connection	G3/4"; front
Seal material	PTFE
Weight	283 g

Safety-relevant Data
MTTFd (EN ISO 13849-1)	1,157.11 a

Output
Analog Output	yes

Standards and certificates

* Not UL certified** Sensors up to 125 °C medium temperature suitable. During installation, please ensure that the sensor housing is sufficiently cooled by the surroundings.

Connection Diagram

Dimensioned Picture
Dimensions specified in mm (1 mm = 0.03937")Wrench Size