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Products Siensor AF107

The Siensor AF107 liquid level sensor is an intelligent device designed for accurate measurement of fuel level in vehicle tanks and stationary reservoirs (diesel-generators, boiler plants, oil storages, etc.). Siensor AF107 measures fuel level, converts received value into an analog or frequency signal and then transmits data to the terminal, which indicates it in litres or percentage.
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Siensor AF107 is a reliable sensor featuring a long-term service. The manufacturer's limited warranty is valid for five years from date of purchase. Siensor AF107 provides flexible configuration of limit values and output signal properties. Output signal does not depend on power supply voltage and therefore the sensor can be integrated with any navigation terminal, which has a frequency or voltage measurement input.

Siensor AF107 is compatible with most liquid types. On request, it is possible to order the product with the length of a measuring probe different from the original one. Data processing algorithms enable high-accuracy detection of fuel filling, draining and consumption.
Features and Benefits

  • High-accuracy linear indication even in harsh service conditions (- 40 to +80°C)
  • Sufficient protection of analog and frequency outputs against short circuit, noise, power failure and connection errors
  • Corrugated metallic sheathed cable
  • Compatibility with most liquid types
  • Allows trimming of a measuring probe without calibration
  • Increased maximum voltage
  • The sensor design is resistant to fuel additives, waxes and pollution
  • Mountable to the tank of any capacity
  • Special oscillation filtering algorithm provides high-accuracy measurement of fuel level

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Technical Specifications

  • Relative reduced measurement error: max ±1.0
  • Additional relative reduced measurement error caused by temperature change over the entire operating temperature range, %: max 1.2
  • Power supply voltage, V: 7-45
  • Power consumption, W:
    • typical - 0.6
    • maximum – 0.9
    • at analog output short circuit – max 1.6
  • Measurement interval, sec: 1
  • Galvanic isolation strength is no less than, V: 250
  • Operating temperature, °С: – 40 to +80
  • Extended operating temperature range*, °С: - 55 and +80
  • Dust and water protection: IP57

* the sensor can take measurements, but with reduced accuracy

Analog Output

  • Output voltage, V: 0…20
  • DA conversion width, bit: 12
  • Analog output load resistance, Ohm: max 2000
  • Output ripple, %: max 0.15

Frequency Output

  • Output modulation: frequency-pulse
  • Output frequency range, Hz: 30…2000
  • Maximum frequency output load current in the "open collector" mode, mA: 300
  • Internal pull-up resistance to positive power supply voltage, Ohm: 1500

Scheme fuel sensor