TESTO 6351, Инструкция по эксплуатации

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4 Transmitter
9
4.1.4. Technical data
Parameter
• Differential pressure
Accuracy
The specifications are only valid if the positive pressure is
applied at the positive pressure connection.
• ±0.8 % of measuring range final value, additional ±0.3 Pa
intrinsic error
1
• T
K slope drift
= 0.03 % of measuring range per degree Kelvin of
deviation from nominal temperature 22 °C
• T
K zeroing drift
= 0 %, as zeroing with solenoid valve 2
Measuring range, resolution and overload
Measuring range
depending on
resolution ordered
Resolution Overload
0 to 50 Pa 0.1 Pa 20,000 Pa
0 to 100 Pa 0.1 Pa 20,000 Pa
0 to 500 Pa 0.1 Pa 20,000 Pa
0 to 10 hPa 0.01 hPa 200 hPa
0 to 50 hPa 0.01 hPa 750 hPa
0 to 100 hPa 0.1 hPa 750 hPa
0 to 500 hPa 0.1 hPa 2500 hPa
0 to 1000 hPa 1 hPa 2500 hPa
0 to 2000 hPa 1 hPa 2500 hPa
1
Measuring uncertainty in accordance with GUM: ±0.8 % of measuring range final value ±0.3 Pa.
The determination of measurement uncertainty takes place according to GUM (Guide to the Expression of
Uncertainty in Measurement): For the determination of measurement uncertainty, the accuracy of the
measuring instrument (hysteresis, linearity, reproduceability), the uncertainty contribution of the test site as
well as the uncertainty of the adjustment site (works calibration are taken into account. For this purpose, the
value of k=2 of the extension factor, which is usual in measurement technology is used as a basis, which
corresponds to a trust level of 95%.
2 Minor mixtures of the media may occur at the positive and negative pressure side due to the automatic
zeroing cycle.