Rice Lake MSI-8000 RF Remote Display - ScaleCore Configuration Management Program (ScCMP) - Manual (Page 19)

Calibration Tools 15
4.2 DAC Controls
ScCMP provides controls for DAC (Digital to Analog) output functions in a ScaleCore product. Controls include
calibration and manual control.
Note DAC outputs may not be available in all ScaleCore family products.
4.2.1 Calibrate DAC
ScCMP provides an interface for performing calibration of the available Digital to Analog Converter (DAC)
outputs. The DAC calibration interface is divided into two sections.
• The left provides the DAC Status interface. This shows the currently selected DAC output.
- Current calibration values – Offset, Gain, Minimum and Maximum Span.
- DAC status – Calibrated, Enabled, In Cal, and Manual Mode.
- DAC configuration relative to input sensor – Sensor ID, Units, Value Type, Minimum and Maximum
Value.
• The right pane provides the calibration controls interface.
- At the top of this will be some brief instructions for what each calibration step requires.
Note Please reference your specific hardware user guide for details on connecting to and measuring the DAC output.
To perform a DAC calibration:
1. Select the DAC output to calibrate from the left status panel.
2. Press the Next button.
Offset
The DAC voltage output will go to a mid-range value. To adjust the offset:
3. It should be approximately equal to the mid-range of the desired DAC output. If needed, adjust the output
value up or down with the calibration controls.
4. Press the Next button to continue.
Note Typically this value is left at default (0).
Gain
The DAC voltage output will go to a full scale value. Adjust the gain:
5. If needed, adjust the output value up or down with the calibration controls.
6. Press the Next button to continue.
Note Typically this value is left at default (0).
Minimum Span
The DAC voltage output will go to the absolute minimum value. Adjust the minimum span:
7. This value coincides with the minimum value assigned to the sensor configuration. If needed, adjust the
output value up or down with the calibration controls.
8. Press the Next button to continue.
Maximum Span
The DAC voltage output will go to a full scale value. Adjust the maximum span:
9. This value coincides with the maximum value assigned to the sensor configuration. If needed, adjust the
output value up or down with the calibration controls.
10. Press the Next button to complete the calibration.