Davtron M655 Series Multi Function
O.A.T, Pressure Altitude, Density Altitude and Aircraft Voltage
General Description
Davtron’s Model 655 is a computer–based product that computes density altitude automatically. No longer does the pilot need to retrieve outside air temperature and pressure altitude, then enter this into a flight computer. The Model 655 measures outside air temperature, and accepts pressure altitude information from the blind encoder or encoding altimeter, then converts this information to a direct read–out of density altitude. The density altitude is computed using U.S. standard atmosphere tabulation. Take–off roll, maximum rate of climb, and fuel comsumption are all determined easily from density altitude and the aircraft’s flight manual.
Features
• 2 ¼″ Standard Mount Or Front Mount• Outside Air Temperature (°F)
• Outside Air Temperature (°C)
• Pressure Altitude
• Density Altitude
• Aircraft Voltage
• Voltage Alarm (Not On NVG Unit)
• Deviation Alarm (Not On NVG Unit)
• Sunlight Readable Display
• FAA–PMA Approved
Specifications
• Density altitude: – 10,000 to 30,000 ft• Pressure altitude: – 1,000 to 62,700 ft.
(Depends on encoder range.)
• Flashing annunciator character on incorrect encoder inputs.
• Temperature range: – 55°C to + 100°C ± 2°C Typ. – 67°F to + 212°F
• Voltage range 10V to 32V ± .2 volts Typ
• LED with automatic dimming.
• Input voltage: 14 or 28 volts
• Input current: .35 amps max
• Weight: 5 oz
• Warranty: 1 year
About Davtron
Davtron's design and manufacturing of avionics instruments began in the late 1960s when digital technology was just beginning. Dave Torresdal, a young pilot in Redwood City, California had an idea for a better way to tune an ADF indicator. He designed, engineered, and flight tested a digital indicator in his 1958 Commanche, and soon other local pilots were clamoring to buy one. Dave's second product was the 811B digital clock which has sold over 40,000 units worldwide and is still in production today.
