WIKA CPH62I0-S1 Manual De Instrucciones página 23

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6. Commissioning, operation
6.3.1 (Unit) Choice of pressure units
Depending on the pressure range, the pressure value can be displayed in any one of the
following units: mbar, bar, Pa, kPa, MPa, mmHg, inHg or psi.
6.3.2 (SL) Sea-level correction for absolute pressure sensors
If an absolute pressure sensor is connected to the instrument, then the device displays
the true absolute pressure measured by the sensor. This does not necessarily equate to
the values given by weather stations, which give the pressure at sea-level. Usually the
sensor is situated above sea-level and therefore, if the value at sea-level (zero) is to be
measured, the pressure loss resulting from the elevation above sea-level must be consid-
ered! To correct the displayed value activate the "Sea-Level-Function" (SL). (Setting is
only possible, if an abs. pressure sensor is connected to sensor connection 1.)
Then enter the sensor's height above sea-level in metres (Alti). When activated, the
display shows the SL-arrow and the device displays the absolute pressure value relative
to sea-level.
When two absolute pressure sensors are connected, the sea level
function for both corresponds to the setting of pressure sensor 1.
6.3.3 (rAtE) Choice of measuring rates: "rAtE-Slo, -P.dEt, -FASt"
Three options of measuring rate are supported. Two of them work with high measur-
ing frequencies of over 1000 measurements per second. Whichever one of these was
selected during configuration (see above), this will be displayed in the lower display:
"P.dEt" or "FASt".
6.3.3.1 rAtE-Slo = standard measuring
Measuring rate 4 Hz, averaging and filter functions are active.
Application: Measurement of slowly changing or static pressures, e.g. leak testing,
atmospheric pressure, highest accuracy, high noise immunity (EMI and unstable
measuring signals), low power consumption.
6.3.3.2 rAtE-P.dEt: Peak detection
Measuring rate > 1000 Hz, the value is displayed unfiltered.
Application with logger function: Measurement of pressure spikes or fluctuating
pressures with a resolution of < 1 ms. The cyclic logger function records the arithmetic
mean value, the highest and the lowest peak during the chosen time interval.
Higher power consumption, measuring is sensitive to noise (EMI,..).
WIKA operating instructions, model CPH62I0
GB
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