M850B MODEL 850B FAA APPROVED – CHRONOMETER

Specifications

• Greenwich Mean Time: 24 hour format
• Local Time: 12 hour or 24 hour
• Flight Time: Records in hours and minutes, up to 99:59, 99.99 hour option
• Flight Time Alarm: Full set range flight time
• Elapsed Time Count Up: Starts in minutes and seconds, then hours and minutes, up to 99:59 hours
• Elapsed Time Countdown: Settable from one second to 59 minutes and 59 seconds
• Elapsed Time Alarm: Activates at zero when counting down
• Count Down Timer: Settable from one second to 59 minutes and 59 seconds. LED Displays: Readable in sunlight
• Automatic Dimming
• Battery Type: CR2032
• Keep Alive Current: .00004 amps
• Input Current: 0.2 Amps
• Input Voltage: 14 to 28 Volts (backlight available 5V, 14V, or 28V lighting)
• Black Face Plate: Engraved Nomenclature
• Grey Face Plate: Silkscreened Nomenclature
• Warranty: 1 year

FAA Approval

Davtron Inc has determined that installation of all Davtron products are considered minor according to (FAR) 21.93(a). All of our units are similar in design, with their electrical, mounting size, and weight being similar. Even though we consider installation of Davtron products to be minor, it is up to the installing mechanic to determine if the installation is minor or major. For a minor, a maintenance log book entry is all that is required. The FAA has determined that the installation of replacement clocks in non-transport category airplanes is considered to be minor, therefore only a maintenance log book entry is required referencing letter 100S-GA-10-53 or NORSEE Approval from the FAA. For a major installation, a FAA 337 form may need to be filed with your local FSDO and a possible field approval done.