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About the gravitation correction factor, Configuration menu/selecting setup, Calibration menu/c2 cal – Hardy HI 3010 Filler/Dispenser Controller User Manual

Page 74: Calibration/selecting cal type, C2 calibration sub-menu, Entering the reference point

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HI-3010 Filler/Dispenser/IBC

58

Service Manual

FIG. 5-2 CONFIGURATION MENU/SELECTING

SETUP

FIG. 5-3 CALIBRATION MENU/C2 CAL

CAUTION: F

OR

H

ARDY

A

DVANTAGE

AND

A

DVANTAGE

L

ITE

C2

LOAD

CELLS

YOU

MUST

SELECT

0-3

M

V/V

ONLY

.

S

ELECTING

OTHER

S

ENSOR

T

YPES

WILL

CREATE

INCOR

-

RECT

WEIGHT

READINGS

.

There are four (4) Sensor Type choices:

0-3mV/V - C2 Load Sensors Only

± 3mV/V - Non C2 Load Sensors

0-120mV/V - LVDT Type Load Sensors

± 120mV/V - LVDT Type Load Sensors

Step 4.

Press the down arrow until the cursor is in front
of Sensor Type.

Step 5.

If the Sensor Type reads anything other than 0-
3mV/V, use the left or right arrow to select 0-
3mV/V.

Step 6.

Press the down arrow until the cursor is in front
of Cal Type. (See Fig. 5-4)

Step 7.

If TRAD is visible press the right or left arrow
until C2 appears.

FIG. 5-4 CALIBRATION/SELECTING CAL TYPE

Step 8. Press the Enter button. The C2 CAL Sub-menu

appears. (See Fig. 5-5)

FIG. 5-5 C2 CALIBRATION SUB-MENU

Step 9. The Load Sensor number is a read only field. It tells

you how many load sensors are connected to the
instrument.

Step 10. Press the down arrow button to move the cursor in

front of the Ref Point. (See Fig. 5-6)

a.

The Reference Point is the total live load that
is currently on the scale.

b.

If you have nothing on the scale the Ref
Point is 0. If you have 5 lbs live load on the
scale the Ref Point is 5.

NOTE:

Normally the scale system is clean and ready to
receive product. This step establishes the gross
zero reference.

FIG. 5-6 ENTERING THE REFERENCE POINT

Step 11. Press the Clr (Clear) button to clear the entry.
Step 12. Use the alphanumeric key pad to enter the weight

that is currently on the scale, typically zero.

Step 13. Press the down arrow button until the cursor is in

front of Gravity. (See Fig. 5-7)

About The Gravitation Correction Factor

Objects weigh less (about 0.5%) at the equator then they weigh
at each pole because the force of gravity is less at the equator
then at the North or South Pole. This is due in part to the effect
of the earth’s rotation and the shape of the earth at the equator.
Therefore objects at the equator are 21 Km further from the
Earth’s center than objects at the poles. For example if you
weigh 100 pounds at the North Pole on a spring scale you weigh
99.65 pounds at the equator. Depending on the latitude of your
location you would weigh somewhere in between. For those
who need the gravity correction factor you can set it here. The
table below shows the gravitation correction factor. In various

CALIBRATION
Sensor Type 0- 3mV/ V1
Cal Type C2 - - >

>

CALIBRATION
Sensor Type 0- 3mV/ V1
Cal Type C2 - - >

>

C2 CAL
Load Sensor s 1
Ref Point 0.00
Gr avi t y 1.00

>

C2 CAL
Load Sensor s 1
Ref Point 0.00
Gr avi t y 1.00

>