Taskem 5000 User Manual

SPECIFICATIONS
 RANGE: 1,000 to +19,990 feet or 305 to +6,093 meters.
Units selectable by internal jumper plug.

RESOLUTION: 10 feet or 1 meter.
 ACCURACY: 1% of reading 100 feet (30 meters) over full
specified operating temperature range.
requirements of FAA TSO-10B, paragraph 6.1.

PRESSURE DISPLAY: Displays absolute ambient pressure in
inches of mercury (inHg) with a resolution of 0.01 inHg.

POWER: 7 to 30VDC.
Backlight draws additional 15 mA independent of supply
voltage. A 9V battery holder is included on back of instrument.

BATTERY LIFE: A 9V alkaline battery will power the instrument
for over 40 hours (20 hours with backlight on continuously).

LOW BATTERY INDICATOR:
appears when less than 2 hours of battery life remains.

DISPLAY: 4 ½ digit, high contrast, liquid crystal display with ½"
high characters. All digits and legends visibly tested on power
up. Backlight for night or dusk viewing.

DISPLAY UPDATE RATE: 0.6 seconds.

BARO ADJ: The UP/DN switch compensates for changes in
ambient, sea-level barometric pressure and can be used to set
the altimeter to known field altitude or zero before flight.

BARO ADJ. RANGE: The instrument can be zeroed at altitudes
as high as 6000 feet above mean sea level and retains baro
setting in non-volatile memory.

WEIGHT: Less than 10 oz. with 9V alkaline battery.

DIMENSIONS: Standard 3
behind back face of instrument panel is 4
7 " by removing external battery holder.
to 3 /
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
TEMPERATURE RANGE: Full accuracy performance from 0 to
50C (32 to 122F). Degraded accuracy, but useable from 20
to +60C (4 to 140F). Temperature limiting factor is liquid
crystal display.
Taskem Corp.
81 Highland Road
Lakeville, MA 02347
Meets accuracy
15 mA @ 9VDC (w/o backlight).
A flashing "LOBAT" symbol
1 " instrument case outline. Depth
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8
5 ". May be reduced
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Tel: 508-679-9339
www.taskemcorp.com
User's Manual
Model 5000 Altimeter
The Model 5000 digital altimeter is a precision instrument that will satisfy the
most demanding user. It is packaged in the standard 3
will fit into existing aircraft panel cutouts without any modifications. The design is
the result of years of development and experience. It is a replacement for our very
successful Model 1000 altimeter introduced in 1988, and incorporates new features
that customers have asked for and improvements that advances in technology
have made possible.
Operation of the altimeter is extremely simple yet there are some hidden
features described within, so please read this manual thoroughly. The instrument
is supplied with faceplates in either FEET or METERS. Except for the printed
faceplate, both models are internally identical and the display units can easily be
changed. A simple stick-on label can be affixed to the faceplate if the altitude units
are changed, or a new panel may be ordered for a more professional look.
It can be powered from a wide range of direct current sources varying from 7
to 30 Volts. Since 9 Volts is a practical and convenient source, a 9V-battery clip is
provided on the back of the case. The battery has purposely been placed external
to the instrument to keep a potentially destructive leaky battery away from the
electronics. It is protected for polarity reversal, so no damage will result from
accidentally connecting the power source backwards.
There are two positions of the power switch that turn the unit on. The BACK
LIGHT position turns on both the instrument and the back light display illuminator
for night viewing. The ON position is for daytime use and this setting does not
illuminate the display to conserve battery power. Current consumption without the
illumination is about 15mA and operation with the light on doubles this value.
Battery life with a standard 9V alkaline battery is just over 40 hours. This is
reduced to about 20 hours if the illumination is left on continuously. Lighting is
barely visible during the day but is easily readable at dusk or in full darkness.
It has a full 4½ digit liquid crystal (LCD) display with large, ½" high characters.
Because the LCD uses "direct drive" it is easily readable from most viewing angles
and does not disappear when viewed from an angle. Also, it does not washout in
bright sunlight, but remains sharp and easily readable.
1
" instrument case and
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