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Reference, Installation, and Operations Manual Section 6: Meter operation
3-9000-743 Rev S June 2013
Flow-condition pressure and temperature 209
On the Daniel MeterLink Analog Inputs Wizard Start screen, select the analog input to calibrate
and click on the
Next button. The Current Calibration screen shows the current offset and gain
and the input scaling (i.e., the pressures or temperatures corresponding to the minimum (4 mA)
input and maximum (20 mA) inputs).
The offset and gain can be reset to the default values (0 and 1, respectively) by clicking the
Reset Defaults button.
Click the
Edit Scaling button to modify the input scaling.
From the
Current Calibration screen, click the Next button to proceed to the Calibration Method
screen to select between the offset and two-point calibration methods. The offset method
requires a single calibration point and only affects the input’s calibration offset parameter. The
two-point calibration requires calibrating at two different points (ideally far apart in value) and
affects the input’s calibration offset and gain parameters. Depending upon the selected
calibration method, either one or two screens will follow when the
Next button is clicked. The
screen(s) will show the current (live) reading. When the input is stable, click on the
Hold button
to freeze the current reading. Enter the correct value in the
Actual edit box. Finally, the Finish
screen shows the new calculated offset and gain values. Click on the
Finish button to write the
values to the meter. If the meter is not configured to use live values from the analog input for
calculation, a prompt is displayed asking if the configuration should be changed to use the live
input.
Clicking the Reset Defaults button writes the offset and gain immediately - the previous
values cannot be restored.
Changes to an analog input’s offset, gain, and scaling values are written to the audit log.