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Honeywell ASDX Series Pressure Sensors
Honeywell ASDX  Pressure Sensors
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The Honeywell ASDX Series Pressure Sensors are an amplified version of Honeywell's proven performer and industry leading SDX Series sensors. The ASDX sensor's footprint is slightly larger than the SDX; however, it offers a high level output (4.0 Vdc span) on a very cost-effective basis. This series is fully calibrated and temperature compensated with on-board Application Specific Integrated Circuitry (ASIC).

These Honeywell DIP (Dual In-line Package) sensors are designed for use with non-corrosive, non-ionic working fluids; such as air and dry gases.

The ASDX sensors are available to measure absolute, differential and gauge pressures. The absolute sensors have an internal vacuum reference and an output voltage proportional to absolute pressure. The differential sensors allow application of pressure to either side of the sensing diaphragm and may used for differential or gage measurements. Bidirectional versions are also available.

The ASDX-DO Series with compensated 14-bit digital output provides either an I2C or SPI digital interface for reading pressure over the specified full scale pressure span and temperature range, minimizing connections and providing higher resolution and faster performance through reduced conversion requirements and the convenience of direct interface to the microprocessors or microcontrollers.

All Honeywell ASDX Series pressure sensors are accurate to within ±2.0% full scale and are designed for operation from a single 5.0 Vdc supply.

Features:
  • ASIC-enhanced output
  • Wide compensated temperature range 0 °C to 85 °C [32 °F to 185 °F]
  • Available in absolute, differential and gage types
  • Pressure ranges from 0 psi to 1 psi through 0 psi to 30 psi
  • Accuracy ±2.0% max. V full scale
  • Quantization step of 3 mV
  • Response time of 8 ms
Applications:
  • Flow calibrators
  • Ventilation and air flow monitors
  • Gas flow instrumentation
  • Dialysis equipment
  • Sleep apnea monitoring and therapy equipment
  • Barometry
  • HVAC controls
  • Pneumatic controls
Honeywell ASDX General Specifications
Supply Voltage (Vs) 1 4.75 Vdc to 5.25 Vdc
Maximum supply voltage(1) 6.50 Vdc (max.)
Consumption current 6 mA (typ.)
Output current (sink) 2 mA (max.)
Output current (source) 2 mA (max.)
Lead temperature 2 s to 4 s at 250 °C [482 °F]
Compensated temp. range 0 °C to 85 °C [32 °F to 185 °F]
Operating temp. range -20 °C to 105 °C [-4 °F to 221 °F]
Storage temp. range -40 °C to 125 °C [-40 °F to 257 °F]
Vibration 10 g at 20 Hz to 2000 Hz
Shock 100 g for 11 ms
Life 1 million cycles minimum
Note:
1. The sensor is not reverse polarity protected. Incorrect application of excitation voltage or ground to the wrong pin can cause electrical failure. Application of supply voltage above the maximum can cause electrical failure.

  • Honeywell Sensing & Control
  • Medical|Sensing
  • Sensors