Hardy HI 2151/30WC Single-Scale Controller User Manual
Page 92
HI 2151/30WC MANUAL
6-14
Step 8.
If a GOOD appears the Span (SPAN) display appears.
NOTE:
The resistance baseline for non C2 load cells, is also set when the Zero Calibration
Value is entered. (See Section 5 for more information)
Setting the Span
Calibration Value
Step 1.
Place a certified test weight on the scale.
Step 2.
Press the Enter button. A dash "--" appears.
Step 3.
Press the -/Test/Clr button. The previous span value appears.
Step 4.
Press the -/Test/Clr button. A "0" appears.
Step 5.
Use the numeric keys to enter the value of the test weight. (If
a 50 lb weight is used, enter 50).
NOTE:
Ideally the test weight used for the dead load should be the typical weight that will be
measured in the application.
Step 6.
Wait 12 seconds.
Step 7.
Press the Enter button to set the span. The Linear Correction
(LINCOR) Sub-Menu appears. Press the -/Test/Clr button two
times. The Return (RETURN) Sub-Menu appears.
The Return
(RETURN) Display
The RETURN Display allows the user to change any setting(s) entered
in the Hard Calibration Sub-Menu.
Step 1.
Push the up arrow
↑ which takes you back to the Zero Sub-
Menu.
Step 2.
Press the up
↑ arrow until you reach the sub-menu you want
to change and press enter.
Step 3.
Follow the procedures for each Sub-Menu you want to
change.
Step 4.
If you want to accept the Hard Calibration parameters
entered, press the Enter button. The End Calibration END
CAL message is displayed.
Step 5.
Press the Enter button. This seals all calibration settings and
exits the Hard Calibration Menu.
Checking for
Mechanical Problems
Step 1.
Place a test weight on the scale.
Step 2.
Check the displayed weight value.
Step 3.
Remove the test weight from the scale. If the displayed value
is zero the hard calibration is complete. If some value other
than zero is displayed, check for mechanical problems, most
likely binding in the system. (See Chapter 8, Flow Chart H for
details) Correct the problems and perform the Hard Calibra-
tion Process again.
NOTE:
To correct mistakes during calibration, or to return to a previous calibration parame-
ter, press the down arrow
↓
to bypass parameters, press the up arrow
↑
.