American Weigh Scales PP-300 - Manual (Page 3)

I. OPERATION
Place Scale on a horizontal flat surface.
1. Press [ON/OFF] key.
2. Wait until "0.0” is displayed.
3. Put the object(s) on the weighing platform.
4. Using the [UNIT] key, you can switch between the
weighing units.
II. TARE WEIGHING
1. Turn on scale as described above.
2. Place the "tare item" on the platform.
3. Press [ZERO] and wait until "0.0" is displayed.
4. Add the "net-weight-item".
III. CALIBRATION
Calibration is NOT required before first use. Only
calibrate if scale is not weighing properly.
**Make sure you use the correct calibration weight for
your scale or the calibration will not be accurate**
PP-50: 50g calibration weight
PP-300: 200g calibration weight
1. Press the ON/OFF button.
2. When is displayed, hold the UNIT button
until the the LCD shows "CAL", then release it.
3. The scale will then display the required calibration
weight (see above). At this point, place your
calibration weight (not included) onto the weighing
surface. The scale will calibrate automatically.
4. The scale will display the internal reference number