vanEssen TD-Diver DI8 Series, Руководство по эксплуатации продукта

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8
Pressure
The specifications for atmospheric and water pressure measurements vary by type of Diver. The
specifications below apply at operating temperature.
TD-Diver DI801 DI802 DI805 DI810 Unit
Water column measurement range 10 20 50 100 mH
2
O
Accuracy (max) ± 2.0 ± 4.0 ± 10.0 ± 20.0 cmH
2
O
Accuracy (typical) ± 0.5 ± 1.0 ± 2.5 ± 5.0 cmH
2
O
Long-term stability ± 2 ± 4 ± 10 ± 20 cmH
2
O
Resolution 0.2 0.4 1 2 cmH
2
O
Display resolution 0.058 0.092 0.192 0.358 cmH
2
O
Overload pressure 15 30 75 150 mH
2
O
Baro-Diver DI800 Unit
Water column measurement range 1.5 mH
2
O
Accuracy (max) ± 2.0 cmH
2
O
Accuracy (typical) ± 0.5 cmH
2
O
Long-term stability ± 2 cmH
2
O
Resolution 0.1 cmH
2
O
Display resolution 0.058 cmH
2
O
Overload pressure 15 mH
2
O
2.5.1 Water Column Measurement Range
The height of water above the Diver that can be measured.
2.5.2 Accuracy (maximum)
Accuracy is the proximity of measurement results to the true value. The algebraic sum of all the errors
that influence the pressure measurement. These errors are due to linearity, hysteresis and
repeatability. During the Diver calibration process a Diver is rejected if the difference between the
measured pressure and the applied pressure is larger than the stated accuracy.
2.5.3 Accuracy (typical)
At least 68% of the measurements during the calibration check are within 0.05% FS of the
measurement range.