Symmetry ED series Operator's Manual page 13

4) Press [On/Off], to turn off the power. Press [On/Off] to turn on the
power again.
5) Place maximum weight (150g) on the platform to verify weighing is
correct. If not, repeat the calibration.
AUTO CALIBRATION FOR ALL OTHER MODELS
Before entering calibration mode, press [On/Off] to turn the power on for 1
minute.
Enter calibration mode
1) Press [On/Off] to turn the power off.
2) Press [Unit] first and then press [On/Off], while keeping the [Unit] key
pressed. The display will show the last calibration value used, press
the [TARE] key to choose between the two calibration weight values
when you have made your selection press the [UNIT] key and the
display will show the A/D value.
Calibration
1) Wait for the stable indicator to be displayed,
2) Press [Unit] -the display will show "00SAVE". After 2 seconds, the
display will return to A/D value.
3) Place the required weight on the platform.
4) After the stable indicator is displayed press [Unit]
5) The display will show "00SAVE". The calibration in complete now.
6) Press [On/Off] to turn the power off. Press [On/Off] to turn on the
power again,
7) Place full weight (eg.500g for 500g model) on the platform to verify
weighing is correct. If not, repeat the calibration procedure.
Page 1