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WIKA operating instructions pneumatic high pressure controller, model CPC7000
0019104001D 10/2018 EN
EN
9.2.6 Calibration Data
The Calibration Data Application is where the calibration data for each transducer is stored and amended. The serial number (S/N),
Accuracy, zero offset (Zero) and span offset (Span) can be seen in this screen. The date of calibration, the calibration interval and
the certificate number can be entered by pressing the corresponding button, then saved by pressing the Check [
] button. To
revert back to the factory calibration, press the “Restore Factory Cal” button. To view the calibration data for each transducer press
the “Range” button at the top and choose a transducer from the resulting selection menu.
Figure 9.2.6 Calibration Data
9.2.7 One Point Cal Application
A single point calibration (usually a zero point calibration) of each transducer installed can be accomplished in “One Point Cal”
Application. The transducer is chosen by pressing the “Range” button at the top of this screen, and then selecting from the list
of installed transducers. For gauge pressure simply expose the reference and the Measure/Control port of the CPC7000 to
atmospheric pressure and then press the “New Value” button and enter zero (0) using the keypad. For an absolute transducer,
apply a known reference pressure between 600 mTorr absolute and 20% of the active transducer’s span to the Measure/Control
port of the CPC7000, press the “New Value” button and then enter the reference pressure (known true pressure) using the keypad.
If you want to save the value in the transducer, press Save.
Notice the reference symbol [
], this
is the pressure reference level of the
instrument.
Figure 9.2.7 One Point Calibration App
9. Maintenance and Recalibration