Campbell CRS456 Manual do Utilizador descarregar pdf (Página 35)

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Appendix A. Calibration Certificate

Each CRS451/CRS456 has been calibrated to meet printed accuracy specification

at multiple temperature and pressure ranges. If additional verification is required,

a Calibration Certificate can be purchased for each CRS451/CRS456 Water-Level

Recording Sensor.

The Instrument Data Report provides a list of the pressure and temperature at

which the sensor was tested.

Pressure [kPa] is the pressure applied (listed in kilopascals) to the sensor.

Temperature [°C] is the temperature inside the test chamber at the time of

testing. Pressure After [kPa] represents the resulting measurement output by the

CRS451/CRS456 at the given pressure and temperature. Finally, Deviation After

[%F.S.] provides the difference between the actual pressure applied to the sensor

and the pressure measurement output by the sensor. This value is listed as a

percentage of the full scale range of the sensor.

When a CRS451/CRS456 is returned to Campbell Scientific for calibration, the

sensor will be returned with an Instrument Data Report. This report will include

values in the Pressure Before [kPa] column. These values represent the

measured pressure the sensor returns at the specified pressure and temperature,

BEFORE calibration.

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Campbell CRS456 Manual do Utilizador Página 35