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Features at a Glance

2 analog outputs: 4 ... 20 mA
FDA compliant
A single sensor for flow and temperature
Measurement independent of flow direction and instillation position

FXFF121 Flow Sensor 2 × Analog Output

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weFlux² Flow Sensors with two analog outputs simultaneously measure flow velocity and the temperature of aqueous liquids regardless of position and direction of flow. Advantage: The number of measuring points and the diversity of sensor variants are cut in half, and greatest possible flexibility is assured for installation in closed piping systems. The analysis module is integrated into the compact housing.

Features at a Glance

2 analog outputs: 4 ... 20 mA
FDA compliant
A single sensor for flow and temperature
Measurement independent of flow direction and instillation position

Technical data

Sensor-specific data
Measuring Range	10 ... 400 cm/s
Temperature of the medium, flow measurement	0 ... 125 °C**
Temperature of the medium, temperature measurement	-25 ... 150 °C
Setting Range	10 ... 400 cm/s
Medium	Water
Measuring error (total)	≤ 2 %
MTTFd (EN ISO 13849-1)	1,210.41 a
Response time in case of temperature jump	10 s

Environmental conditions
Ambient temperature	-25 ... 80 °C
Storage temperature	-25 ... 80 °C
Pressure Resistance	100 bar
EMC	DIN EN 61326-1
Shock resistance per DIN IEC 68-2-27	30 g / 11 ms
Vibration resistance per DIN IEC 60068-2-6	5 g (10...2000 Hz)

Electrical Data
Supply Voltage	12 ... 32 V DC
Current Consumption (Ub = 24 V)	< 40 mA
Number of analog outputs	2
Analog Output	4...20 mA
Signal source	Flow
Response Time	1 ... 5 s
Short Circuit Protection	yes
Reverse Polarity Protection	yes
Protection Class	III

Mechanical Data
Housing Material	Stainless steel, V4A (1.4404/316L)
Material in contact with media	Stainless steel, V4A (1.4404/316L)
Degree of Protection	IP68/IP69K *
Connection	M12 × 1; 4-pin
Process Connection	G 1/2"
Process Connection Length (PCL)	72.5 mm
Probe Length (PL)	32 mm
Weight	325 g

Output
Analog output flow	yes
Analog output temperature	yes

Adjustable parameters
Signal source	Flow Temperature
All other parameters can be found in the product documentation.

Standards and certificates

* Certified by wenglor ** The sensors were calibrated and specified for the medium water. Technically, the sensors are suitable for a medium temperature of up to -25 °C. To achieve a temperature below 0 °C, a different medium must be added to the water. This leads to a different measurement result, which is why an application below 0 °C must be tested individually for the mixture used.