Preston PS-425 - Specifications

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PS-425 SPECIFICATIONS
Digital Altimeter:
Display Range : -1000 to 35,000 feet
Vacuum Pump Range: -1000 to 35,000 feet
Resolution: from -1,000 to 30,000 feet resolution is in 2-feet increments
from 30,000 to 35,000 feet resolution is in 5-feet increments
Sensor Accuracy: approximately 0.03 %
Temperature range: 32 degrees F to 120 degrees F (0 C to 50 C)
Altitude units: Feet
Digital Airspeed:
Range: 18 – 500 Knots
Resolution: 1 Knot
Sensor Accuracy: 0.03%
Temperature range: 32 degrees F to 120 degrees F (0 C to 50 C)
Physical Dimensions: 13”D X 15.25”L X 9.5”H (33x39x24 cm)
Weight: approximately 17.1 lbs (7.7 Kg)
Power Source:
External: 12 VDC (from a 110/220 VAC adaptor or other source)
Internal: 12 VDC (from internal batteries)
Current draw: 100 mA with backlight on, 10 mA with backlight off
Other Features:
Leak test feature: 2 minutes, selectable down to 30 seconds (longer test periods available upon request)
VSI (vertical speed indicator) : Increments of 2 when < 100 feet/minute; increments of 25 when > 100
feet/minute. Limited to 9,900 ft/minute
Note: The PS-425 does NOT have the precision required to test RVSM altimeter
systems.