3 inch Counter Drum Pointer Altimeter with optional output for SSR transponder, GPS and autopilot Description: 3-inch pressure-sensitive altimeters (ALT) are aircraft instruments indicating the flight altitude or height on the basic of measuring barometric pressure, changing with the altitude. The counter-pointer display is actuated by high stability beryllium capsule. A built-in vibrator minimises friction and optimises accuracy. The instrument is intended for measuring and indicating altitude or height between -1,000 and 50,000 ft according to the model. In accordance with the intended use and model the altimeter is supplied also with an encoder with an ICAO output and serial output compatible with main GPS and autopilot suppliers. Electrical output of the barometric scale is also available. Altimeter is offered to comply with customer's specification and is mounted for easy servicing. Ranges: Dial layouts: ARINC 408A Standard Round MS 33549 (AS) Environmental (Operating): Temperature: -20 °C to +55 °C (-4 °F to +131 °F) Humidity: 95% maximum at +50 °C (122 °F) Vibration: 5 to 55 Hz, 0.01 inch (0.25mm) max.; 55 to 500 Hz, 1.5 g max. Typical weight: Basic version Basic version with el. output of barometric scale 2.1 lbs. (970 g) Encoding version 2.3 lbs. (1050 g) Encoding version with el. output of barometric scale Encoder outputs: RS422/RS485 Rs232 Parallel ICAO altitude code Electrical output of barometric scale Configurable serial protocol: UPS AT (1200bps) Trimble/Garmin (9600bps) Northstar (2400bps) Magellan (9600bps) ARNAV (9600bps, altitude in meters) Shadin (9600bps, 1-foot resolution) S-TEC (9600bps, binary) Applicable Specification: ETSO C 10b, TSO C 10b (C 88a), RTCA/DO-160D Dial and Pointer: Lustreless white on dull black background, 3 moving drums Installation: By means of four screws with the aid of a clamp or a frame (ARINC case) or directly by means of three screws (MS 33549 case) Lighting: Lighting is available upon request (5 VDC, 14 VDC, 28 VDC white, red or NVIS green)