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MECHANICAL
2.375
TYP.
1.875
TYP.
2.22
3
Mounting Hardware 4-40x
/
8
ELECTRICAL
Alarm Out
Keep Alive .00004A
5
Ground to start Flight Time
9
4
Dimming 5V (240ma), 14V (240ma) or 28V (100ma) lighting
8
4V to 28V Starts Flight Time
3
7
Temperature Sensor (White)
2
6
14 to 28 Volts, 2A
1
Temperature Sensor (White/Blue Stripe)
GND
NOTE: Keep Alive (Pin 9) is only required if alkaline AA size battery is removed. Flight Time starts with either
Pin 3 or Pin 4 – use only one pin.
SPECIFICATIONS
Greenwich Mean Time: 24 hour format.
n
n
Local Time: 12 hour format.
n
Flight Time: Records in 99:59 standard.
n
Flight Time Alarm: Full set range flight time.
Elapsed Time Count Up: Starts in minutes,
n
seconds, then hours, minutes up to 99:59 hrs.
n
Elapsed Time Count Down: Settable from
one second to 59 minutes, 59 seconds.
n
Elapsed Time Alarm: Activates at zero
when counting down.
2.10
1.375
Alkaline "AA" Battery
M803
Locking Connector
Positronics MD9F-20J-VL
1.675
.080
2.83
Audio Alarm
- +
+
Battery
.25A
LCD Display
n
n
Battery Type: AA size alkaline.
Keep Alive Current: .00004 Amps.
n
n
Input Current: .2 Amps.
n
Input Voltage: 11 to 28 volts.
n
Voltage Range: 8 volts to 32 volts ±.2 volts Typ.
-55°C to +100°C ±2°C Typ.
Temperature Range: -67°F to +212°F.
n
n
Crystal Reference: -40C to + 60C .001%.
n
Weight: 5.02 ounces.
n
Warranty: 1 year.
DIGITAL CLOCK
GREENWICH MEAN TIME
LOCAL TIME
FLIGHT TIME - Flight Time Alarm
ELAPSED TIME - Count Up, Count Down, Alarm
FEATURES - O.A.T. / VOLTS
ß
ONE button control steps sequentially through
E, F, C:
E - Voltage
F - O.A.T. Fahrenheit
C - O.A.T. Centigrade
ß
Always selects to read voltage on power up for
battery status check.
M803
LCD Display
ß
Input voltage - 11 to 28 volts.
ß
Internal lighting 5v,14v or 28v specify when
ordering.
ß
2.25" standard mount - wt. 5.02 oz.

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Summary of Contents for Davtron M803

  • Page 1 GREENWICH MEAN TIME 1.375 2.375 TYP. LOCAL TIME FLIGHT TIME - Flight Time Alarm Alkaline “AA” Battery ELAPSED TIME - Count Up, Count Down, Alarm 1.875 M803 TYP. 2.22 Locking Connector Positronics MD9F-20J-VL 1.675 Mounting Hardware 4-40x .080 2.83 ELECTRICAL...
  • Page 2 MODEL 803 CLOCK OPERATION Normal Operation Flight Time Reset The SEL button selects what is to be displayed and FT must be displayed when resetting. Hold CTL down the CTL button controls what is being displayed. for 3 seconds, or until 99:59 appears on the display. Pressing SEL sequentially selects Local Time, Flight Flight Time will be zeroed upon release of the CTL Time, Elapsed Time, and back to UT.