Specifications

239
To enter a user map datum, select the term “USER” in the
list of datums arranged in alphabetical order. Depending
on the type of map datum you want to define, up to nine
different parameters, distributed on two different screens,
may have to be defined:
1st screen:
Semi-major axis (meters)
Inverse flattening
Delta X (meters)
Delta Y (meters)
Delta Z (meters).
2nd screen (select Next> at the bottom of the 1st screen
to access this screen):
Rotation X (seconds)
Rotation Y (seconds)
Rotation Z (seconds)
Scale factor (ppm).
Tap Done to complete the definition of the user map
datum. This takes you back to the Map Datum list where
“USER” is selected. Tap twice to return to the last dis-
played navigation screen.
Time Format
This option allows you to select the time format you want
to use in ProMark3. You can choose from three different
time formats: Local 24Hrs, Local AM/PM or UTC.
After selecting the Time Format option from the Setup
menu, just tap the time format you want to use.