Features at a Glance
- Simple operation via the display
- Measurement independent of flow direction
- Installation in any position
- Highest precision of its class
- Temperature of the medium: 0 ... 100° C (140° C for 24 hours without current measurement)
FFAF171 Flow Sensor
Usually ready to ship in 30 days after order is received.
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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 | |
|---|---|
| Selectable measuring range | 10 ... 300 cm/s |
| Measuring range 1 | 10 ... 150 cm/s |
| Setting range 1 | 15 ... 150 cm/s |
| Measuring range 2 | 20 ... 300 cm/s |
| Setting range 2 | 30 ... 300 cm/s |
| Medium | Water |
| Measuring error (total) | 2 % |
| MTTFd (EN ISO 13849-1) | 1,341.35 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 | 2 |
| Switching Output A1 | Flow |
| Switching Output A2 | Flow |
| Response Time | 1 ... 5 s |
| Switching Output/Switching Current | < 250 mA |
| Switching Output Voltage Drop | < 2 V |
| 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 | G 1/2" |
| Process Connection Length (PCL) | 47 mm |
| Probe Length (PL) | 10 mm |
| Weight | 331 g |
Output | |
|---|---|
| PNP NO | yes |
Adjustable parameters | |
|---|---|
| Circuit |
NC NC/NO NO |
| Other parameters | 2 switching points |
| All other parameters can be found in the product documentation. |
Standards and certificates |
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* Certified by wenglor
Connection Diagram |
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Ctrl. Panel |
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01 = Switching Status Indicator
60 = display 20 = Enter key 22 = Up key 99 = Right button |
Dimensioned Picture |
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Dimensions specified in mm (1 mm = 0.03937")
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Complementary Products |
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ECAD data
