TESTO 6383 - Differential pressure accuracy; Humidity and temperature accuracy; Pressure measuring range, resolution and overload

4 Transmitter
8
Differential pressure accuracy
The specifications are only valid if the positive pressure is
applied at the positive pressure connection.
• 0.3 % of measuring range, additional 0.3 Pa intrinsic error
1
• T
K slope drift
= 0.02 % of measuring range per degree Kelvin of
deviation from nominal temperature 22 °C
• T
K zero point drift
= 0 %, as zeroing with solenoid valve
2
Humidity and temperature accuracy
• Depends on probe
Humidity and temperature measuring range
• Depends on probe
Pressure measuring range, resolution and overload of
differential pressure
Pressure
measuring range
depending on
version ordered
Resolution Overload
0 to 50 Pa 0.1 Pa 20,000 Pa
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
-10 to 10 Pa 0.1 Pa 20,000 Pa
-50 to 50 Pa 0.1 Pa 20,000 Pa
-100 to 100 Pa 0.1 Pa 20,000 Pa
1
Measuring uncertainty in accordance with GUM: ±0.5 % 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.