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Integrated Pressure Transducer IPT
Honeywell's Integrated Pressure Transducer (IPT) provides high accuracy pressure data in an industry standard SPI digital format. The core of the IPT is a proven Honeywell silicon piezoresistive pressure sensor with both pressure and temperature sensitive elements. The IPT is small and lightweight and can be easily integrated by the user into a wide variety of applications that require high performance in a small package. Applying the coefficients stored in the on-board EEPROM to the normalized IPT pressure and temperature output yields highly accurate and stable pressure readings over the -40 to 85C compensated temperature range.
APPLICATIONS:

Air Data Computers Altimeters Cabin Air Pressure Engine Test Systems Flight Test Systems Meteorology Flow and Pressure Calibrators
0.04% FS Total Error Band, -40 to 85C, Absolute
Small and Lightweight
Instrumentation and Analytical Equipment Research and Development
0.10% FS Total Error Band, -40 to 85C, Gauge/ Differential
Excellent Pressure Stability
FEATURES AND BENEFITS
High Accuracy Over a Wide Temperature Range From -40 to 85 C 0.04% FS Total Error Band (absolute pressure), to 0.10% FS Total Error Band (gauge/ differential pressure) (1) Digital SPI Output
ISO-9001 ISO-14001
Stored Correction Coefficients in EEPROM - Ready to use; No additional pressure and temperature calibration necessary.
Simplifies System Design - No additional signal compensation needed to achieve a highly accurate pressure reading.
Industry Standard Interface - Ready communication between a Controller/Processor and the IPT.
Small and Versatile
(16 Volume ~ 1 in Lesscm ) 10 grams. Lightweight - than Media Interface - Handles most dry gas media.
3
3
IPT
DIMENSIONS
SPECIFICATIONS
Performance Specifications Total Error Band: (from -40 to 85C) 0.04%FS absolute 0.10%FS gauge, differential 0.20%FS 1 psi gauge Temperature Range: Operating -40 to 85C (-40 to 185F) Storage: -55 to 125C (-67 to 257F) Long Term Stability: 0.025% FS max per year Mechanical Specifications Pressure Ranges and Type: See Ordering Information at right Pressure Units: PSI(2) Media Compatibility: Suitable for non-condensing, non-corrosive, and non-combustible gases. Weight(3): ~8.0 grams (absolute) ~9.7 grams (gauge, differential) Electrical Specifications Output: 24-bit pressure value 16-bit temperature value 256 x 8 EEPROM configuration Power Requirements: Supply Voltage: 4 to 12 VDC Current Consumption: 6 mA typical, 7.5 mA max Interface: 3.3V SPI (mode 1,1) SCLK 5 Mhz Update Rate: 166 samples/second Environmental Features Overpressure: 3x FS Burst Pressure: 3x FS Mechanical Shock: DO-160E Section 7.0, Category A, Figure 7.2, Operational Standard Thermal Shock: Storage Temperature Cycling per JESD22-104, Section 5.0: -55C to +125C Vibration: DO-160E Section 8, Category H, Aircraft Type 2, Aircraft Zones 1 & 2 RoHS Compliant (2002/05/EC): Yes
(1)
ORDERING INFORMATION
IPT Integrated Pressure Transducer IPT FULL SCALE PRESSURE RANGE Absolute Gauge Differential 0001 N/A 1 PSIG(1) 1 PSID 0002 N/A 2 PSIG 2 PSID 0005 N/A 5 PSIG 5 PSID 0010 N/A 10 PSIG 10 PSID 0020 20 PSIA 20 PSIG 20 PSID 0050 50 PSIA N/A N/A TYPE P1 Pressure A Absolute 0 (vacuum) to FS G Gauge Reference to FS D Differential +FS to -FS rel. to P2 DIGITAL INTERFACE VOLTAGE 33 3.3 volts POWER SUPPLY R Regulated, 4-12VDC OPTIONS Example: A Demonstration Kit(4) IPT 0020 A 33 R -A
P2 Pressure N/A Reference +FS to -FS rel. to P1
CONNECTOR
(1)
Total Error is the sum of worst case linearity, repeatability, hysteresis, thermal effects, and calibration errors over the operating temperature range. Accuracy is only achieved after applying the correction coefficients and algorithm as shown in section 3.2. of Product Specification (FS = Full Scale). For total error calculations of differential units, "Full Scale" is the pressure difference between the minimum and maximum pressures. For example, full scale for a 1 psid PPT is 2 psi (-1 to +1 psi). Pressure range 1psi gauge has total error of 0.20% FS. (2) After applying the correction coefficients stored in EEPROM, the resultant pressure reading is expressed in PSI (pounds per square inch). (3) Not including mounting hardware. (4) Demonstration kit includes RS-232 Cable, Demo Board, AC adapter, MS Windows Software, and User's Manual.
Find out more
For more information on Honeywell's Precision Pressure Transducers visit us online at www.honeywell.com/pressuresensing or contact us at 1-800-323-8295 or 763-954-2474. Customer Service Email: ps.customer.support@honeywell.com.
Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Covered by one or more of the following US Patents: 4,918,992 and 4,788,521.
Honeywell Aerospace Honeywell International Inc. 12001 Highway 55 Plymouth, MN 55441 www.honeywell.com
ADS-14184 Rev A November 2010 (c)2010 Honeywell International Inc.

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