Description and Calibrations
Honeywell Pressure Transducer (SN 79921)
Description: Pitot (differential pressure)
Manufacturer: Honeywell
Model Number: PPT2-0002DKKSVS-F
Serial Number: 79921
ID Number: 01
Software Version Number:
Calibration: January 22, 2014 - Slope: Offset:
Instrument Customized Adjustment Parameters: X=0, Y=0, Z=0, F=0
Serial Interface: 9600 Baud Rate, 8 Data Bits, 1 Stop Bits, None for Parity, Attach Line Feed, Flow Control None (important), Local Echo On.
2015/06/05 Calibration
Accepted error: ±0.075 (from factory calibration sheet)
Observed maximum digital error: -0.033 (from factory calibration sheet)
Calculated error: -0.04278 (averaged over 120 seconds)
Error calculated from standard pressure comparisons taken at 0.1 PSI increments between 0.1 PSI and 0.9 PSI
Honeywell Pressure Transducer (SN 80857)
Description: Beta/side slip angle (differential pressure)
Manufacturer: Honeywell
Model Number: PPT2-0001DKK2VS-F
Serial Number: 80857
ID Number: 02
Software Version Number:
Calibration: April 04, 2014 - Slope: Offset:
Instrument Customized Adjustment Parameters: X=0, Y=0, Z=0, F=0
Serial Interface: 9600 Baud Rate, 8 Data Bits, 1 Stop Bits, None for Parity, Attach Line Feed, Flow Control None (important), Local Echo On.
2015/06/05 Calibration
Accepted error: ±0.075 (from factory calibration sheet)
Observed maximum digital error: 0.067 (from factory calibration sheet)
Calculated error: -0.03472 (averaged over 120 seconds)
Error calculated from standard pressure comparisons taken at 0.1 PSI increments between 0.1 PSI and 0.9 PSI
Honeywell Pressure Transducer (SN 81483)
Description: Attack angle (differential pressure)
Manufacturer: Honeywell
Model Number: PPT2-0001DKK2VS
Serial Number: 81483
ID Number: 03
Software Version Number:
Calibration: April 21, 2014 - Slope: Offset:
Instrument Customized Adjustment Parameters: X=0, Y=0, Z=0, F=0
Serial Interface: 9600 Baud Rate, 8 Data Bits, 1 Stop Bits, None for Parity, Attach Line Feed, Flow Control None (important), Local Echo On.
2015/06/05 Calibration
Accepted error: ±0.075 (from factory calibration sheet)
Observed maximum digital error: -0.049 (from factory calibration sheet)
Calculated error: 0.03 (averaged over 120 seconds)
Error calculated from standard pressure comparisons taken at 0.1 PSI increments between 0.1 PSI and 0.9 PSI
Honeywell Pressure Transducer (SN 53166)
Description: Nose boom (static pressure)
Manufacturer: Honeywell
Model Number: PPT0015AXN2VA
Serial Number: 53166
ID Number: 04
Software Version Number: 2.4C5S2V (April 12, 2014)
Calibration: April 20, 2010 - Slope: 205.199 Offset: - 0.1358
Instrument Customized Adjustment Parameters: X=0, Y=0, Z=0, F=0 (April 12, 2014)
Serial Interface: 9600 Baud Rate, 8 Data Bits, 1 Stop Bits, None for Parity, Attach Line Feed, Flow Control None (important), Local Echo On.
2015/06/05 Calibration
Accepted error: ±0.1 (from factory calibration sheet)
Observed maximum digital error: -0.033 (from factory calibration sheet)
Calculated error: -0.06111 (averaged over 120 seconds)
Error calculated from standard pressure comparisons taken at 9 intervals between 2.5 PSI and 14 PSI
Serial Command
The first two digits are the ID Number of the transducer!
Validyne Pressure Transducer (SN 24685)
Description: Pressure transducer used for Nose Boom attack angle measurement.
Manufacturer: Validyne
Model Number: P40D 1-N-1-B-26-W-5
Serial Number: 24685
Calibration: Feb. 11, 2010 - Slope: 6.91 Offset: 0.16
Typically used as the Beta Angle transducer, the 26 in the model number indicates a 0-0.5 PSI range.
Validyne Pressure Transducer (SN 75876)
Description: Pressure transducer used for Nose Boom side slip angle measurement.
Manufacturer: Validyne
Model Number: P40D 1-N-1-B-26-W-5
Serial Number: 75876
Calibration: Feb. 8, 2010 - Slope: 6.91 Offset: -0.40
Typically used as the Beta Angle transducer, the 26 in the model number indicates a 0-0.5 PSI range.
Validyne Pressure Transducer (SN 105151)
Description: Pressure transducer used for Wing pitot air speed measurement.
Manufacturer: Validyne
Model Number:
Serial Number: 105151
Calibration: November 5, 2010 - Slope: 87.0381 Offset: 216.2293
Rosemount Pressure Transducer (SN 308)
Description: Pressure transducer used for Nose Boom dynamic pressure measurement.
Manufacturer: Rosemount
Model Number: F2AF7B1B
Serial Number: 308
Pressure Range: 0.0 - 2.5 PSI
Voltage Range: 0-10 Volts
Calibration: Feb. 8, 2010 - Slope: 17.3 Offset: -1.44
Re-wired connector to transducer. Verified voltage at the A/D board to see its working. All o.k. October 7, 2010
Rosemount Pressure Transducer (SN )
Description: Pressure transducer used for Nose Boom static ring.
Manufacturer: Rosemount
Model Number: 1201F-2A14B1A
Serial Number:
Pressure Range:
Voltage Range: 0-10 Volts
Calibration: January 29, 2010 - Slope: 207.08 Offset: 0.71
Notes
Honeywell Transducers
Since the Honeywell transducers output data as pressure (in PSI) and not in voltages, a calibration constant is not needed.
The conversion factor is 1 PSI = 68.9475728 hPa
Problems
Wing Transducer during MPACE Field Project
Date
September 30, 2004: MPACE Field Project
Problem
Wing mounted pressure transducer is cutting out during flights. This was a problem on several of the Spring 2004 Sikorsky flights. The new Validyne pressure transducer was returned to the company but they could find no problems. The older pressure transducer was used after the Sikorsky project but during the September 30, 2004 CitationFieldprojectMPACE flight same problem.
Cause
May be a short in the wiring or something wrong with the A/D board.
Solution
The pitot wing pressure measurement was moved from analog channel 4 to analog channel 0 on October 11, 2004.
Problem
During the CAPE2015 Project:Receiving data at 25 Hz; however, the post-processing is getting a lot of corruption of the string. The wind processing software needs to be updated to use the digital data streams.
Solution
Problem
For the next project during Fall 2015, we need to figure out if we can have sufficient 28 v power for new UTC pressure transducer.