ASDX HONEYWELL | Alldatasheet
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Low Pressure and Ultra-Low Pressure Analog Output ±2% Total Error Band, DIP, 10 inches H20 to 100 psi
DESCRIPTION
The ASDX Series is a Silicon Pressure Sensor offering a ratiometric analog output for reading pressure over the specified full scale pressure span and temperature range. The ASDX is fully calibrated and temperature compensated for sensor offset, sensitivity, temperature effects and non-linearity using an on-board Application Specific Integrated Circuit (ASIC). Calibrated output values for pressure are updated at approximately 1 kHz. The standard ASDX is calibrated over the temperature range of 0 °C to 85 °C [32 °F to 185 °F]. The sensor is characterized for operation from a single power supply of either 3.3 Vdc or 5.0 Vdc. These sensors are available to measure absolute, differential and gage pressures. The absolute versions have an internal vacuum reference and an output value proportional to absolute pressure. Differential versions allow application of pressure to either side of the sensing diaphragm. Gage versions are referenced to atmospheric pressure and provide an output proportional to pressure variations from atmosphere. The ASDX Series sensors are intended for use with non- corrosive, non-ionic working fluids such as air and dry gases. They are designed and manufactured according to standards in ISO 9001.
FEATURES
- Ratiometric 12-bit analog output
- Precision ASIC conditioning and temperature compensated over 0 °C to 85 °C [32 °F to 185 °F] temperature range
- Low operating voltage
- Absolute, differential and gage types
- Pressure ranges from 10 inches H20 to 100 psi
- Standard calibrations in inches H20, cm H20, psi, mbar, bar, kPa
- Total error band of ±2.0% of full scale span maximum
- RoHS compliant POTENTIAL APPLICATIONS
- Flow calibrators
- Ventilation and air flow monitors
- Gas flow instrumentation
- Sleep apnea monitoring and therapy equipment
- Barometry
- Pneumatic controls
- HVAC
Table 1. Absolute Maximum Ratings Table 2. Operating Specifications
3.3 Vdc
5.0 Vdc
5.25 Vdc
Table 3. Environmental Specifications Table 4. Wetted Materials
- Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device.
- An external bypass capacitor is required across the supply voltage (Pins 1 and 3 – see Figure 4) as close to the sensor supply pin as possible for correct sensor
- Ratiometricity of the sensor (the ability of the output to scale to the input voltage) is achieved within the specified operati ng voltage for each option. Other custom
supply voltages are available, please contact Honeywell Customer Service.
- The sensor is not reverse polarity protected. Incorrect application of excitation voltage or ground to the wrong pin may cause electrical failure.
- The compensated temperature range is the temperature range (or ranges) over which the sensor will produce an output proportiona l to pressure within the
specified performance limits.
- The operating temperature range is the temperature range over which the sensor will produce an output proportional to pressure but may not remain within the
specified performance limits.
- Overpressure is the maximum pressure which may safely be applied to the product for it to remain in specification once pressure is returned to the operating
pressure range. Exposure to higher pressures may cause permanent damage to the product.
- Burst pressure is the maximum pressure that may be applied to any port of the product without causing escape of pressure media. Product should not be expected
to function after exposure to any pressure beyond the burst pressure.
- Total error band is the maximum deviation in output from ideal transfer function over the entire compensated temperature and pr essure range. Includes all errors
due to offset, full scale span, pressure non-linearity, pressure hysteresis, repeatability, thermal effect on offset, thermal e ffect on span and thermal hysteresis. Specification units are in percent of full scale span (%FSS).
- Full scale span (FSS) is the algebraic difference between the output signal measured at the maximum (Pmax.) and minimum (Pmin.) limits of the pressure range.
- Consult Honeywell Customer Service for detailed material information.
- For the AC pressure port configuration, the “pressure” and “reference” ports are reversed.
Figure 1. Nomenclature and Order Guide
- Other package combinations are possible, please contact Honeywell Customer Service.
- The transfer function limits define the output of the sensor at a given pressure input. By specifying the output signal at the maximum (Pmax.)
representation of each calibration.
- For a digital output, please refer to the ASDX Digital Series.
- Custom pressure ranges are available, please contact Honeywell Customer Service.
- The pressure units (inches H20, cm H20, psi, mbar, bar, kPa) define the units used during calibration and in the application.
- See Table 5 for an explanation of sensor types.
Figure 4. Dimensional Drawings and Pinout (For reference only: mm [in].) Table 6. Pinout
1 Vsupply supply power supply source
2 Vout analog output provides the analog output
3 GND supply power supply ground
4 N/C not used do not connect in the application
5 N/C not used do not connect in the application
6 N/C not used do not connect in the application
7 N/C not used do not connect in the application
8 N/C not used do not connect in the application
1985 Douglas Drive North
Golden Valley, MN 55422 www.honeywell.com/sensing 008090-9-EN IL50 GLO Printed in USA October 2009 Copyright © 2009 Honeywell International Inc. All rights reserved. WARNING PERSONAL INJURY DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items it finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages. While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. WARNING MISUSE OF DOCUMENTATION
- The information presented in this product sheet is for reference only. Do not use this document as a product installation guide.
- Complete installation, operation, and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. SALES AND SERVICE Honeywell serves its customers through a worldwide network of sales offices, representatives and distributors. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact your local sales office or: E-mail: info.sc@honeywell.com Internet: www.honeywell.com/sensing Phone and Fax: Asia Pacific +65 6355-2828; +65 6445-3033 Fax Europe +44 (0) 1698 481481; +44 (0) 1698 481676 Fax Latin America +1-305-805-8188; +1-305-883-8257 Fax USA/Canada +1-800-537-6945; +1-815-235-6847 +1-815-235-6545 Fax