Press SELECT first and hold then press UNITS/Power for 2 seconds at the same time. The screen will go to [BUILD]
Press ZERO key 2 times to get [CAL]
Press the TARE key 1 time to get [ZERO]
Remove all weight from the platform
Press the SELECT key one time to get weight flashing
Press PRINT key one time [Z in 1 P] then [0.00]
Press TARE key one time to get [ZERO]
Press TARE key one time to get [SPAN]
Press SELECT key one time (if you get CLR then press the f (OK) key)
Add calibration weight to the scale
To edit the weight
SELECT will select the digit · PRINT will edit the digit (scroll up)
Press the f (OK) key to get S in P then the weight will show
To save Press the select and power again and hold till saving.