Davtron M877 Series Digital Chronometer
Davtron M877 Series Digital Chronometer
Davtron M877 Series Digital Chronometer
General Description
Davtron M877 Series Digital Chronometer - are multi-functional chronometers with an easy to use two-button design. They display universal time, local time, and elapsed time. The 800 series come with two different screen formats, either liquid crystal or incandescent — both with illuminated screens that are readable in high sunlight situations.
M877-5V - features 5V lighting with illuminated buttons and rear mount installation.
M877-28V - features 28V lighting with illuminated buttons and rear mount installation.
- 2-1/4 inch internal mount
- Two-button control system
- Greenwich Mean Time
- Local Time
- Flight time with alarm
- Elapsed time counter with countdown timer
- Elapsed time alarm
- Option audio alarm
- Bright, incandescent, sunlight readable display
- Automatic dimming
- Illuminated buttons and annunciators
- Keep alive battery option
- FAA-PMA approved
| Greenwich Mean Time | 24 hour format |
| Local Time | 12 hour or 24 hour option |
| 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, 59 seconds |
| Elapsed Time Alarm | Activates at zero when counting down |
| Incandescent Displays | Readable in sunlight |
| Automatic Dimming | |
| Battery Type | N size alkaline Model 850 |
| Battery Type | AA size alkaline alkaline Model 877 |
| Keep Alive Current | 00004 Amps |
| Input Current | 2 Amps |
| Input Voltage | 14 to 28 Volts (Backlight available 5V, 14V, or 28V lighting - Specify when ordering) |
| NVIS Option | NVIS Green A lighting for Model 850 |
| Black Face Plate | Engraved Nomenclature |
| Grey Face Plate | Silkscreen Nomenclature |
| Weight | 5 ounces |
| Warranty | 1 year |
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 from the FAA. For a major installation on a non PMA approved airframe, a FAA 337 form should be filed with your local FSDO and a possible field approval done. FAA PMA# PQ1062NM
Davtron Inc. recommends that you purchase our products through your local avionics shop and have them do your installation. They know how to handle all the log book entries you need for FAA approval.
INSTALLATION ELIGIBILITY
Mystere Falcon 50 and 900
Learjet Airplanes 35A and 60
BAE Jetstream Model 4101
