Davtron M850 Quick Start Manual

MECHANICAL
2.46 MAX
1.46
. 125
TYPE N
BATTERY
CG
C
. 050
L
2.250
+.005-015
.750
DATA PLATE / SERIAL NUMBER MOUNTED ON BOTTOM
ELECTRICAL
Alarm Out
Keep Alive .00004A
5
Ground to start Flight Time
9
4
Dimming 28V at 50MA, 5V or 14V available
8
4V to 28V Starts Flight Time
3
7
Serial Data Output /optional
2
6 14 or 28 Volts, .2A
1
Serial Clock Output /optional
GND
NOTE: Keep Alive (Pin 9) is only required if alkaline N size battery is removed. Flight Time starts with either
Pin 3 or Pin 4 – use only one pin.
SPECIFICATIONS
ß Greenwich Mean Time: 24 hour format.
ß Local Time: 12 hour format,
24 hour option.
Flight Time: Records in 99:59 standard,
ß
99:99 hour option.
ß Flight Time Alarm: Full set range flight time.
ß Elapsed Time Count Up: Starts in minutes,
seconds, then hours, minutes up to 99:59 hrs.
ß Elapsed Time Count Down: Settable from
one second to 59 minutes, 59 seconds.
ß Elapsed Time Alarm: Activates at zero
when counting down.
3. 00
TYP 45°
4 PL.
CHRONOMETER
23:59
2. 375
GMT LT FT LT
SELECT CONTROL
SEL CTL
4-40 CS
82° TYP
4 PL.
Audio Alarm
- +
+
Battery
.25A
Incandescent Displays: readable in sunlight.
ß
ß Automatic Dimming
Battery Type: N size alkaline.
ß
ß Polarizing Filter
ß Keep Alive Current: .00004 Amps.
ß Input Current: .2 Amps.
ß Input Voltage: 28V
(backlight available 5V, 14V, or 28V (must specify)
ß Crystal Reference: -40C to + 60C .001%.
ß Weight: 5 ounces.
ß Warranty: 1 year.
427 HILLCREST WAY
REDWOOD CITY (Emerald Hills). CA 94062
(650) 369-1188
www.davtron.com
DIGITAL CLOCK
GREENWICH MEAN TIME
LOCAL TIME
FLIGHT TIME - Flight Time Alarm
ELAPSED TIME - Count Up, Count Down, Alarm
FEATURES
ß Two button control system is natural and error
free. Setting operations are identical for both
alarm and time setting. Patent Pending.
ß
Bright sunlight readable incandescent displays.
ß Illuminated buttons and annunciators for
night viewing.
ß Flight Time recorded in hours and minutes or in
hours, tenths, and hundreds.
M850
Incandescent Display
ß Serial time data output for remote use.
ß Flight time alarm with external output.
ß Elapsed time count down timer with alarm.
ß A 4 MegaHertz crystal precision time
reference.