Internal Calibration (for models with built-in calibration weight only) 
The built-in calibration weight is standard equipment on all verified balances/scales and 
on the following standard (non-verified) models: 
CP225D, CP324S, CP224S, CP64, GC1603P, GC803S, GC803P
Settings: 
Calibration/adjustment mode: Internal calibration/adjustment (menu code 1  9  3)
There is a motorized calibration weight within the balance/scale housing which is applied
and removed automatically for internal calibration.
Step Key (or instruction) Display
1. Turn on balance/scale,  e
0.0 g
if necessary.
2. Tare the balance/scale, t
0.0 g
if necessary.
3. Start calibration/adjustment q
c
Internal weight is applied CAL
automatically.
4. Balance/scale is calibrated
– 0.2 g
(displayed only if menu CAL
code 1 10 2 is set). 
5. If the menu code for 
CC
“calibration and adjustment   CAL
in a single step" (1  10  1) 
is set, the balance/scale is 
adjusted automatically now.
6. Internal weight is unloaded.
0.0 g
21