5 weight (span) calibration (with test weights), Section 2.1.5 – Rice Lake SCT-10 User Manual

Page 20

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16 SCT Weight Transmitter Operator’s Manual

2.1.5 Weight (Span) Calibration (With Test Weights)

After performing Section 2.1.1 “Theoretical Calibration” on page 14 and Section

2.1.3 “Zero Setting” on page 15, this function allows correct calibration to be

done using test weights of known value, if necessary, any deviations of the

indicated value from the correct value to be corrected.

1. Load the test weight onto the scale, use as high a percentage of the

maximum quantity to be weighed as possible.

2. Press and hold

, then press

. CALIb will be displayed.

3. Press ,

FS-tEO is displayed.

4. Press

or

until UEIGHt is displayed, press

.

5. The value of the weight currently on the system will be flashing on the

display. All of the LEDs are off. (If adjustment is not required, skip to

step 8.)

6. Adjust the value on display to match weight loaded on the scale if

necessary, by pressing

or

. The LED’s will begin scrolling.

7. Press

, the new set weight will appear with all the LEDs flashing.

8. Press

again,

UEIGHt will be displayed.

9. Press

twice to exit set-up menu.

Example:
For a system of maximum capacity of 1000 kg and 1 kg division, two test
weights are available, one 500 kg and one 300 kg. Load both weights onto the
system and correct the indicated weight to 800. Now remove the 300 kg
weight, the system must show 500; remove the 500 kg weight, too; the system
must read zero. If this does not happen, it means that there is a mechanical
problem affecting the system linearity.

Identify and correct any mechanical problems before
repeating the procedure.

If theoretical full scale and recalculated full scale in weight (span)
calibration are equal, it means that the theoretical calibration is
currently in use; otherwise, the weight (span) calibration based on
test weights is in use.

If the correction made changes the previous full scale for more
than 20%, all the parameters with settable weight values are reset
to default values.

Linearization Option On Max 5 Points:

It is possible to perform a linearization of the weight repeating the above-

described procedure up to a maximum of five points, using five different test

weights.

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