Table of Contents

Description and Calibrations

Honeywell Pressure Transducer (SN 79921)

2015/06/05 Calibration

Honeywell Pressure Transducer (SN 80857)

2015/06/05 Calibration

Honeywell Pressure Transducer (SN 81483)

2015/06/05 Calibration

Honeywell Pressure Transducer (SN 53166)

2015/06/05 Calibration

Serial Command

The first two digits are the ID Number of the transducer!

Validyne Pressure Transducer (SN 24685)

Validyne Pressure Transducer (SN 75876)

Validyne Pressure Transducer (SN 105151)

Rosemount Pressure Transducer (SN 308)

Rosemount Pressure Transducer (SN )

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.