Omega CA450 User Manual page 51

4) Use %STEP▲, %STEP▼, COARSE▲, and COARSE▼ to adjust the value that
appears in the main display and the subdisplay so that it is the same as the value read by
the multimeter connected to the CA0.
You can use %STEP▲ and %STEP▼ to adjust the second decimal place (values above
the second decimal place are also affected), and you can use COARSE▲ and COARSE
▼ to adjust the fourth decimal place (the third decimal place is also affected).
5) After you have finished adjusting the value, press the Hz key to confirm it.
6) Start full scale calibration:
In the main display and the subdisplay, 20.0000 mA appears. (The display in the
subdisplay shows the value up to the fourth decimal place.)
7) Use %STEP▲, %STEP▼, COARSE▲, and COARSE▼ to adjust the value that
appears in the main display and the subdisplay so that it is the same as the value read by
the multimeter connected to the CA0.
You can use %STEP▲ and %STEP▼ to adjust the second decimal place, and you can
use COARSE▲ and COARSE▼ to adjust the fourth decimal place.
8) After you have finished adjusting the value, press the Hz key to confirm it.
The calibrated range value is computed and saved in the internal memory.
(The previous calibration data is overwritten.)
9) To stop calibration, turn the function switch off.
10) Perform steps 2 through 7 for the SOURCE and SIMULATE output modes.
Note
You cannot calibrate current sweep output. Even in calibration mode, normal output is
performed.
(Keys other than SHIFT and SELECT cannot be used.)
Table  Calibration Table (Output)
Function
Constant current
output
* Adjust at 5% of the range.
Output Direction
SOURCE .0000 mA
SIMULATE .0000 mA
Calibration Point
*
±5% ±Full Scale
20.0000 mA
20.0000 mA
9
Condition
—
28 V external
voltage