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• 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.
Procedure
See Figure 9‐6.
Measurement support
138 Micro Motion
®
Model 1500 Transmitters with Analog Outputs