Excell FJ5 - Local G Value Setting

EXCELL PRECISION CO., LTD.
45046
32
ZSME300000343
4-4-2 Local G Value Setting
The acceleration of gravity must be between the one at the equator (G
E
) and the one
at the poles (G
P
).
G
E
= 9.7803184558 m/sec
2
G
P
= 9.8321772792 m/sec
2
Taipei ≒ 9.78914 m/sec
2
Shanghai ≒ 9.79423 m/sec
2
Example 1:
The gravity value at the manufacturing location: 9.7891 m/sec
2
(EX: Taipei)
The gravity value at the location of using: 9.8113 m/sec
2
(EX: Germany)
The ratio of the two values is 9.7891/9.8113=0.9977373029……
When the setting of the above 2 values is completed, place an accurate mass of 2000kg
onto the hook.
The displayed weight should be 20000.9977373029  1996kg in Taipei, and it will be
2000kg in Germany.
The calculation of gravity value
G ＝ 9.80616 - 0.025928cos2ψ ＋ 0.000069 cos
2
2ψ - 0.000003086H
G: m/sec
2
ψ: latitude
H : height
For example, the calculation of the gravity value at Northern latitude 25
G = 9.80616 - 0.016666197 + 0.00002850913787 - 0.000003086H
= 9.789465294 – 0.000003086H
.
.
Press TARE key
Enter Local
G Value
Press TARE key
G value setting
LCD displays the current G value
MODE  Upward digit selecting (0-9)
HOLD  Downward digit selecting (9-0)
ZERO  Move the cursor rightward
TARE  Confirm