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FFAF225 Flow Sensor

wenglor UniFlow flow sensors measure the flow rate of aqueous and oily media in closed piping systems. UniFlow flow sensors are very easy to operate thanks to the integrated display. The highly visible switching status display enables the rapid localization of affected sensors for maintenance processes.

Sensor-specific data

Measuring Range 0.1 ... 10 l/min
Setting Range 0.4 ... 10 l/min
Medium Water
Measuring error (total) 2 %
MTTFd (EN ISO 13849-1) 1,194.55 a
Switching Hysteresis 5 %
Temperature gradient 30 K
Response time in case of temperature jump 10 s

Environmental conditions

Temperature of medium 0 ... 100 °C
Temperature of the medium, short-term 140 °C
Ambient temperature -20 ... 70 °C
Pressure Resistance 60 bar
EMC DIN EN 60947-5-9
Shock resistance per DIN IEC 68-2-27 30 g / 11 ms
Vibration resistance per DIN IEC 60068-2-6 20 g (10...2000 Hz)

Electrical Data

Supply Voltage 16 ... 32 V DC
Current Consumption (Ub = 24 V) 60 mA
Number of Switching Outputs 1
Analog Output 4...20 mA
Signal source Flow
Response Time 1 ... 5 s
Switching Output/Switching Current < 250 mA
Switching Output Voltage Drop < 2 V
Current Output Load Resistance < 500 Ohm
Short Circuit Protection yes
Reverse Polarity Protection yes
Protection Class III

Mechanical Data

Setting Method Menu
Housing Material Plastic, PBT
Plastic, PC
Material Control Panel Polyester
Material in contact with media Stainless steel, V4A (1.4404 / 316L)
Stainless steel, V4A (1.4435/316L)
Rubber, FKM
Degree of Protection IP67 *
Connection M12 × 1; 4-pin
Process Connection Sealing cone M18 × 1,5
Process Connection Length (PCL) 64 mm
Probe Length (PL) 44 mm
Weight 300 g

Output

Analog output flow yes
PNP NO yes

Adjustable parameters

Signal source Flow
Temperature
Circuit NC
NC/NO
NO
Other parameters Switching point
Selectable measurement range
All other parameters can be found in the product documentation.

Standards and certificates

B_SYM_CE_01.pdf B_SYM_CE_01.pdf B_SYM_CE_01.pdf B_SYM_CE_01.pdf B_SYM_CE_01.pdf
* Certified by wenglor

Connection Diagram

Ctrl. Panel

01 = Switching Status Indicator
60 = display
20 = Enter key
22 = Up key
99 = Right button

Dimensioned Picture

Dimensions specified in mm (1 mm = 0.03937")
B_SYM_SCHLUESSEL_22.pdf Wrench Size

Complementary Products

  • Software
Initial start-up instructions
Operating instructions
Declarations of Conformity / Approvals
Product Comparison