USER'S GUIDE ____________________________________________________________________
74 __________________________________________________________________ M210543EN-F
3. PWD22/52 sets two-bit values to the DAC hardware and requests
the corresponding currents. The currents can be measured with a
standard (calibrated) multimeter.
4. PWD22/52 calculates the bits/current scales.
Example of the calibration of PWD22 (current sink, 20 mA jumper):
Type the following command:
>ACAL
The output is the following:
MEASURED CURRENT (mA)
Enter the value, for example, 21.69.
The output is the following:
MEASURED CURRENT (mA) 4.35
The output is the following:
DAC MODE: EXT1
MAX VIS 20000, 20 mA
MIN VIS 180, 4.5 mA
20mA SCALE_1 184.5, SC_0 -2.8
1mA SCALE_1 184.8, SC_0 -1.4
The parameters of the ACAL command in the current range of
0 ... 1 mA are the following:
DAC scale 1
DAC scale 0
The parameters of the ACAL command in the current range of
0 ... 20 mA are the following
DAC scale 21
DAC scale 20
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