PRESTON PRESSURE

 

 

Digital Air Data Testers for Aviation

Digital - The Better Way

Preston Pressure sells digital air data testers world-wide. It has become a favored equipment of many avionic and maintenance shops. Old mechanical testers are becoming obsolete due to high maintenance costs and non-repairable parts. Digital testers are the solution, and their nearly indestructible sensors with longer calibration periods reduce their long-term costs, making them a wise investment choice.

 

 

Digital Air Data Systems

Preston Pressure manufactures digital pitot-static/air data testers for aviation. These testers verify the accuracy of aircraft altimeters and airspeed indicators.

PS-525

New: Mach airspeed 0.00 to 1.00

The PS-525 Pitot-Static tester is a low-maintenance, digital tester that is fully portable.

The PS-525 is powered by 24 volts DC, or by its two internal re-chargeable batteries, which enable the test set to be used completely independent of any external power source.

The PS-525 comes calibrated to 35000 feet (the PS-525A version goes to 50000 feet) It also includes an encoder reader displaying gray code and RS232 at speeds of 1200, 2400, and 9600 baud.

The PS-525 is designed and priced for non-RVSM markets. It includes two quick-connect hoses, 24 VDC power adapter, a calibration certiificate, and a limited 2-year warranty. This product is ideal for performing simple go/no-go leak tests, as well as for general use as a pitot-static tester. It only requires an annual calibration, and the sensors are technician-proof, which contributes to reduced annual maintenance costs.

Click for More PS-525 Information

See PS-525 Brochure

Download PS-525 User Manual

PS-425

The PS-425 is a low-cost tester with manual pumps and a digital display, calibrated up to 35,000 feet. The display toggles to indicate altitude and knots, or altitude and vertical speed. It incorporates a leak test function for airspeed and altitude.

The PS-425 is powered by 12 volts DC, either by 8 internal D-size batteries or an external adapter. The display uses very little current (when the backlight is not used), enabling the internal battery pack to power the display continuously for 60 days.

The PS-425 is designed and priced for non-RVSM markets, and includes two quick-connect hoses, 12 VDC power adapter, a calibration certificate, and a limited 2-year warranty. This product is ideal for performing simple go/no-go leak tests, as well as for general use as a low-end pitot-static tester. It only requires an annual calibration, and the sensors are technician-proof, which contributes to reduced annual maintenance costs.

Click for More PS-425 Information

See PS-425 Brochure

Download PS-425 User Manual

ALT-621 and ASP-621

Drop-in replacements for analog mechanical indicators in pitot-static testers.

The ALT-621 features are:

  • Available in two altitude options: 35,000 feet / 10668 meters and 50,000 feet /15,240 meters
  • Altitude is displayed in 2 and 5 feet increments, or 1 meter increments
  • Altimeter section includes VSI - Vertical Speed Indicator
  • Selectable timing for Leak Check feature

The ASP-621 features are:

  • Displays airspeed in Knots, KPH and MPH
  • Indicates Knots from 20 to 300 (or 20 to 500 for 500 Knot version)
  • Indicates MPH from 20 to 345 (or 20 to 345 for 500 Knot version)
  • Indicates KPH from 34 to 550 (or 20 to 550 for 500 Knot version)

Click for More ALT-621 Information

See ALT-621 Brochure

Download ALT-621 User Manual

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