Measurement support
Figure 9-3
D3 or D3 and D4 density calibration using ProLink II
9.4.2
Perform a D3 and D4 density calibration using
Field Communicator
Prerequisites
• During density calibration, the sensor must be completely filled with the calibration fluid, and
flow through the sensor must be at the lowest rate allowed by your application. This is usually
accomplished by closing the shutoff valve downstream from the sensor, then filling the sensor
with the appropriate fluid.
• For D3 density calibration, the D3 fluid must meet the following requirements:
− Minimum density of 0.6 g/cm
3
− Minimum difference of 0.1 g/cm
3
between the density of the D3 fluid and the density of water.
The density of the D3 fluid may be either greater or less than the density of water.
• For D4 density calibration, the D4 fluid must meet the following requirements:
− Minimum density of 0.6 g/cm
3
− Minimum difference of 0.1 g/cm
3
between the density of the D4 fluid and the density of the
D3 fluid. The density of the D4 fluid must be greater than the density of the D3 fluid.
− Minimum difference of 0.1 g/cm
3
between the density of the D4 fluid and the density of water.
The density of the D4 fluid may be either greater or less than the density of water.
• Before performing the calibration, record your current calibration parameters. If the calibration
fails, restore the known values.
Configuration and Use Manual
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