WIKA CPH6000 Betriebsanleitung Seite 37

ProcessCalibrator
CPH6000
9.3 CALIBRATION mode (preparing the test points of a calibration)
This example clarifies the definition of several test points/pressure steps within a
calibration. It is possible to prepare up to 16 calibrations, each with up to 32 test
points.
Calling up menu items:

Via & calling up menu item: CALIBRATION (see Chapter 9.3)
SETUP
Enter the desired/required test points in the way described on the previous page.
Test items with electrical output (4 ... 20 mA, etc.) have to be calibrated according
to the indication of the reference. This means: the pressure has to be set in such
away that the reference value is equal to the set value.
Sometimes it is difficult to adjust the pressure precisely according to the set value,
therefore besides the true value (test item) and set value the current reference value
is also stored.
With the help of the software "PrintCal" it is then possible to state either true value
(test item) and set value or true value and corresponding reference value in the
calibration certificates.
If the calibration is to follow DKD requirements, the measured value for
the following test point should not be recorded before a defined time
has passed (e.g. 30 sec.), consisting of load-change time and steady-
state time (see figure A: Calibration Cycle to DKD Directive 6-1 for
measurement uncertainty > 0.6 % of measuring range).
Figure A
WIKA Operating Instructions ProcessCalibrator
GB
37