44
ZM400 Series Indicators Service Manual
6
ADMIN level menus
6.2.6 Gravity Factor Procedure
grAvitY
Use this item to key in a gravity constant value. If the scale has been
calibrated at a different location that has a significantly different
gravitational factor than the installation site, and it is not possible to re-
calibrate with known test weights, the scale can be adjusted using this
gravity factor.
g-FACt
If you know the local gravitation factor (allowable range is
9.70000 to 9.90000), key it in here
OR
If you do not know the local gravitation factor but can
determine the approximate latitude and altitude of the
installation site, then the indicator can calculate the gravity
factor from these two values.
LAt
This stands for latitude. Key in the latitude for the installation
site. The valid range is 0 to 90. A positive value works for north
or south of the equator. Altitude
ALt
This stands for altitude. Key in the altitude for the installation
site. The valid range is 0 to 30,000 ft. (10000 m).
CALC
This stands for calculate. The indicator calculates the gravity
factor and loads this value as the gravity factor.
Be sure to save the changes when you exit the menu and test the accuracy with a know
weight.
Gravity
G-fact
Lat
Alt
Calc
View or
enter
G-factor
Enter
latitude
Enter
altitude
Calculates
gravity
factor
CAUTION: Verify with local agencies if adjusting the gravity factor is accepted
in your area. It may be required that calibration be done with certified weights.
