WIKA CPH62I0-S1, Руководство по эксплуатации

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24 WIKA operating instructions, model CPH62I0
11221801.02 02/2011 GB/D/F/E
GB
6. Commissioning, operation
6.3.3.3 rAtE-FASt: fast filtered measuring
Measuring rate > 1000 Hz, but the value is filtered slightly (higher noise immunity than
P.dEt, small peaks will be filtered out), apart from that, identical behaviour to P.dEt.
6.3.4 Averaging function
The averaging function acts on the displayed values (LCD and serial interface). It
is completely independent of the averaging within the logger function, please don‘t
confuse them!
The averaging integrates the measured values during a chosen time interval and then
calculates the average display value. It is independent of the selected measuring rate
(slow, fast, peak detect).
Until sufficient values to calculate an average value have been collected (dependant
on selected averaging time), the upper display shows “----“, the lower display shows a
´countdown´.
During an active low-power-logging procedure the average is always deactivated.
Operation of min/max-value memory in conjunction with the averaging function:
■
If averaging is activated and ‘slow’ measuring rate is selected (rAtE-Slo), the min-/
max-memory value relates to the average display value.
■
If averaging is activated and ‘fast’ measuring rate is selected (rAtE-FASt or P.dEt), the
min-/max-memory value relates to the internal measured values (pressure spikes can
be detected).
6.3.5 Zero correction sensor 1 (OFS.1) and sensor 2 (OFS.2)
A zero displacement can be carried out for the measured value:
displayed value = measured value - offset
Standard setting: ‘off‘ = 0.00, i.e. no zero offset will be carried out. Together with the
scale correction (see below) this factor is mainly used to compensate for sensor devia -
tions. Input is in the display unit.
6.3.6 Span correction sensor 1 (SCL.1) and sensor 2 (SCL.2)
The scale of the measurement can be influenced by this setting (factor is in %):
displayed value = (measured value - offset) * (1+Scal/100)
Standard setting: ‘off‘ = 0.000, i.e. value is not corrected. Together with the zero offset
(see above) this factor is mainly used to compensate for sensor deviations.