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STX Signal Transmitter Installation and Operation ... - Kistler-Morse

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Chapter 7. MVS-<strong>STX</strong> Calibration Menu<br />

Following is an example where use of the<br />

linearization table may be required:<br />

Example: When the vessel is empty, the display<br />

correctly shows approximately 0 lbs. You start putting<br />

truckloads of material into the vessel, <strong>and</strong> notice the<br />

following pattern:<br />

Truck Total Actual Total Indicated<br />

Load<br />

Load<br />

0 0<br />

1 5,000 6,000<br />

2 10,000 11,500<br />

3 15,000 16,000<br />

4 20,000 20,000<br />

After the fourth truckload, the indicated load from the<br />

MVS is reasonably accurate. You notice this same<br />

pattern <strong>and</strong> magnitude of errors each time you start<br />

with an empty vessel.<br />

Follow this procedure to set up <strong>and</strong> enable the<br />

linearization table:<br />

1. If in Auto Mode (Auto LED illuminated),<br />

press the Auto/Man Key to put the MVS<br />

in Manual Mode. The Auto LED turns off.<br />

2. Use the Arrow Keys to scroll to the<br />

desired channel.<br />

3. Press the Menu Key to display the Main<br />

Menu. The display shows:<br />

MAIN MENU<br />

Disp I/O Cal <br />

F1 F2 F3<br />

4. Press the F3 Key to access the Cal<br />

Menu. The display shows:<br />

CALIBRATION MENU<br />

Auto<br />

Manual<br />

F1 F2 F3<br />

5. Press the Menu Key to display the<br />

menu’s second page. The display shows:<br />

CALIBRATION MENU<br />

Linear<br />

<br />

8. Use the keypad or Arrow Keys to enter a<br />

new value for Raw Input. Press the Enter<br />

Key. The display acknowledges the entry<br />

<strong>and</strong> switches to a display that looks<br />

like this:<br />

Pt CORRECTED OUT<br />

1 > 1048576 Cnts<br />

F1 F2 F3<br />

9. Use the keypad or Arrow Keys to enter a<br />

new value for Corrected Output. Press<br />

the Enter Key. The display acknowledges<br />

the entry <strong>and</strong> returns to the Raw Input<br />

screen for point 1.<br />

10. Press the F1 Key to move on to point 2.<br />

The display looks like this:<br />

Pt RAW INPUT<br />

2 > 1112576 Cnts<br />

F1 F2 F3<br />

11. Repeat Steps 8 through 10 until setup of<br />

the linearization table is complete.<br />

12. Press the Esc Key. The display shows:<br />

LINEARITY MENU<br />

On Off* Set<br />

F1 F2 F3<br />

(Asterisk indicates current selection for<br />

On or Off.)<br />

13. Press the F1 Key to enable linearization.<br />

The display acknowledges the selection<br />

<strong>and</strong> returns to:<br />

LINEARITY MENU<br />

On* Off Set<br />

F1 F2 F3<br />

14. Press the Esc Key to scroll up the menu<br />

tree or press the Auto/Man Key to return<br />

to channel monitoring.<br />

F1 F2 F3<br />

6. Press the F1 Key to access the Linear<br />

Menu. The display shows:<br />

LINEARITY MENU<br />

On Off* Set<br />

F1 F2 F3<br />

(Asterisk indicates current selection for<br />

On or Off.)<br />

7. Press the F3 Key to access the Set<br />

Menu. The display looks like this:<br />

Pt RAW INPUT<br />

1 > 1048576 Cnts<br />

F1 F2 F3<br />

7-10

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