LW Measurements SCT 1200 - Manual (Page 26)

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6.2 Linearity calibration (for scale technician
or factory use)

Turn on the weighing machine and then turn it off.

Press and hold the TARE key and then turn on the
machine. The display will show LINE on the first row,
CAL-0 (flashing) on the second line and AD value on
the third line.

When the AD value is stable, press ZERO to calibrate
ZERO. After 2 or 3 seconds, the second line will
show 200. (ex. SCT 600)

Place a 200g weight on the platter and press ZERO
when the stable A/D value is displayed. After 2 or 3
seconds, the display will show 400.

Place a 400g weight on the platter and press ZERO
when the stable A/D value is displayed. After 2 or 3
seconds, the display will show 600.

Place a 600g weight on the platter and press ZERO
when the stable A/D value is displayed. After 2 or 3
seconds, the display will show 00000. Calibration is
now complete.

Turn off the power, then turn it back on again. Place a
weight on the platter to ensure weighing is correct. If
not, repeat the above steps.