12
Calibration
Your scale has been properly calibrated at the factory and should not require any
further adjustments. The following procedure should be performed only to
correct any error in calibration. Calibration is protected by a security code to avoid
inadvertent access.
1. Depress the ON/ZERO button on the console and wait for the display to show 0.0”.
2. Place an accurately known “sure” weight (100 lbs. minimum) on the platform. If the
display reads other than the known weight value by +/- 0.1 pounds, then the scale
is out of calibration.
IMPORTANT NOTE: A “sure” weight is a weight that has been accurately calibrated
and its license is traceable to NBS weights & measures. Weight room free weights are
not normally suitable to use as check weights as they may vary from their stated value.
If you do not have access to “sure weights”, use a weight that has been weighed on a
scale you are sure is accurate.
3. The calibration security code must be entered before attempting to calibrate the
scale. Hold the MENU button down and press RECALL button. Release both
buttons. “Set-0” will be displayed and the “0” will be flashing.
4. Depress the button repeatedly until “Set-6” appears. Depress the ENTER
button.
5. Use the and keys to input “125” as the calibration security code. Press
ENTER to advance to the next digit. After entering the third digit, press ENTER
and the scale will return to normal weighing mode. The security code needs to be
entered only once, unless the scale is powered off. Access to calibration is denied
if the proper code is not entered.
6. With the known weight still on the scale, the weight value will display representing
the current calculation of the known weight. The hundreds of pounds digit will be
flashing. Use the and keys to input the proper value. Press ENTER to
advance to the next digit. After entering the tenths of pounds digit, press ENTER
and “-CAL-” will display while the scale calibrates itself.
7. The readout will then re-weigh to show the new calibration weight.
8. Remove weight and depress the ON/ZERO button. Wait for “0.0” to display and
verify calibration by placing the same known weight back on the platform.
NOTE: Although the scale will permit a calibration weight as low as 100 pounds (45 kg.),
for the most accurate operation, a known weight of at least 200 pounds (90 kg.) is
recommended. The scale can be calibrated in either pounds or kilograms.
Calibration Error Code
“Err-4” Scale is below minimum calibration weight. Use at least 100 lbs. (45 kg.) to
calibrate the scale.
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