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Features at a Glance

A single sensor for flow and temperature
FDA compliant
Ready for Industry 4.0 with IO-Link 1.1
Measurement independent of flow direction and instillation position

FXFF046 Flow Sensor with IO-Link

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weFlux² flow sensors simultaneously measure flow velocity and the temperature of aqueous liquids regardless of position and flow direction. The advantage: The number of measuring points and the diversity of sensor variants are cut in half, ensuring the greatest possible flexibility when installing in closed piping systems. Either 2 switching outputs or 1 switching output and 1 analog output are available depending on application requirements. The outputs can be configured as desired via IO-Link in order to flexibly adapt the sensors to the respective application.

Features at a Glance

A single sensor for flow and temperature
FDA compliant
Ready for Industry 4.0 with IO-Link 1.1
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 Switching Outputs	2
Number of analog outputs	1
Analog Output	4...20 mA
Signal source	Flow
Response Time	1 ... 5 s
Switching Output/Switching Current	± 100 mA
Switching Output Voltage Drop	< 2 V
Load Current Voltage Output	≤ 20 mA
Short Circuit Protection	yes
Reverse Polarity Protection	yes
Protection Class	III
Interface	IO-Link V1.1

Mechanical Data
Setting Method	IO-Link
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" hygienic design
Probe Length (PL)	16.4 mm
Weight	341 g

Output
Analog output flow	yes
IO-Link	yes
PNP NO	yes

Adjustable parameters
Output	Analog Output Push-pull NPN PNP
Analog output	0...10 V 4...20 mA
Signal source	Flow Temperature
Circuit	NC NC/NO NO
Other parameters	2 switching points Selectable measurement range
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.