Robinair 16900 Refrigerant Identifier - Manual (Page 12)

10
Operating Procedure
3. During the warm-up period, enter your local elevation above sea
level into the instrument memory. The instrument is sensitive to
elevation changes of 500 feet (152 meters), and the local elevation
must be entered into the instrument memory upon initial use.
Normal barometric variations do not affect the performance of the
instrument. Once the elevation has been entered, it does not require
entry again unless the instrument is moved to a new elevation.
To locate your local elevation, call your area airport, library, or use
the internet address of www.topozone.com and follow the on-
screen prompts.
The screen USAGE ELEVATION <<<NOT SET>>> is displayed
during warm-up if the elevation has not been set. Set the elevation
as follows:
A. During the warm-up period, depress and hold the
B pushbutton
until the display reads USAGE ELEVATION, 400 FEET.
This is the factory default of 400 feet (122 meters).
B. Use the A and B pushbuttons to adjust the elevation reading,
to the nearest 100-foot (30-meter) increment, to the local
elevation. Th e A button increases the elevation setting in
100-foot (30-meter) increments. The B pushbutton decreases
the elevation setting in 100-foot (30-meter) increments. The
elevation setting is adjustable from 0-9000 feet (0-273 meters)
and is displayed during adjustment.
C. When the correct setting is reached, allow the instrument to
sit for approximately 20 seconds. Do not push either of the
buttons. The setting is automatically stored into the instrument
memory.
NOTE: Failure to correctly enter the local elevation may result in
detection errors.