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Configuration and Use Manual 39
Calibration
Startup ConfigurationCalibrationBefore You Begin
Figure 3-11 Zeroing procedure – ProLink II
3.7 Performing density calibration
Density calibration includes the following calibration points:
• All sensors:
- D1 calibration (low-density)
- D2 calibration (high-density)
• T-Series sensors only:
- D3 calibration (optional)
- D4 calibration (optional)
For T-Series sensors, the optional D3 and D4 calibrations could improve the accuracy of the density
measurement. If you choose to perform the D3 and D4 calibrations:
• Do not perform the D1 or D2 calibrations.
• Perform the D3 calibration if you have one calibrated fluid.
• Perform both the D3 and D4 calibrations if you have two calibrated fluids (other than air
and water).
The calibrations that you choose must be performed without interruption, in the order listed here.
Modify zero time
if required
Calibration
Failure LED
Calibration in Progress LED
turns red
Green
Troubleshoot
Red
Perform Auto Zero
Done
ProLink >
Calibration >
Zero Calibration
Wait until Calibration in
Progress LED turns green