DFL E
Pressure and differential pressure transducer with switchable measuring range
Application
DFL Exxx with or without display is a differential pressure transducer used to measure over-, under- and differential pressure in the air. The digitally calibrated and compensated MEMS unit guarantees excellent reliability and accuracy. These pressure sensors are used in clean room, medical and filter technology, in ventilation and air conditioning ducts, in spray cabins, in commercial kitchens, for filter monitoring and fill level measurement or to control frequency inverters. The measured medium is air (noncondensing) or gaseous, non-aggressive, non-combustible media.
Technical Data
| Power supply: | Output 0-10 V: 24 V DC ±15%, 24 VAC ± 15%
Output 4-20 mA: Residual voltage at the
unit 10..24 V (->e.g. at a load resistance of
500 Ohms, 2V...10V, Supply voltage 20..26 V) |
| Power consumption: | 4 mA at 24 V DC output 0-10 V |
| Output signal: | 0-10 V or 4...20 mA |
| Measuring range: | Sensor types +/-250, +/-1000, +/-3000,
+/-10000 for switchable measuring ranges see table |
| Max. permissible pressure: | ± 250 Pa: 7kPa, ± 1000 Pa, 10kPa, ± 3000 Pa: |
| depending on meas. cell: | 33kPa, ± 10000Pa: 80kPa |
| Ambient temperature: | -20...+50°C |
| Circuit type: | 4-20 mA 2-wire, 0-10 V 3-wire connection |
| Pressure connector: | 4/6 x 11mm (hose Ø = 5/7mm) |
| Type of pressure: | Differential pressure |
| Medium: | Air, non-aggressive, non-combustible gases |
| Long-term stability: | ±1,5% per / 10 years |
| Measuring errors: | ± 1% incl. hysteresis, linearity, repeatability |
| Drift values via temp: | ± 1% of input value |
| Housing: | ABS/PC, colour pure white (similar to RAL9010), 4 quick fasteners |
| Display (optional): | LCD display in kPa |
| Dimensions: | 81 x 55 x 35 mm plus cable gland M16 |
| Electrical connection: | 0,14 - 1,5 mm² via screw terminals |
| Cable gland: | M16, with tension relief |
| Humidity: | < 95 % r. H., non-condensing air |
| Protection class: | III (according to EN 60 730), Protection type: IP 65 (according to IEC 529) |
| Standards: | CE conformity, electromagnetic compatibility acc. to EN 61326-2-3:2013 08 01 EMV Directive 2014/30/EU |
