WIKA CPC6000 - Manual (Page 96)

Automated Pressure Calibrator
CPC 6000
96 Mensor/WIKA Operating Instructions - CPC 6000
10.8.4 2-Point Calibration
A two-point calibration adjusts both the offset and the slope of the active turndown. The low point
must be within 20% of the minimum range of the active turndown and the high point must be within
20% of the maximum range of the active turndown. Insure that the head correction is adjusted prop-
erly, see
Section 10.9 . From the unlocked calibration data screen, press the [2 Point Calibration] key
as shown in Figure 10.8.4A. The ‘Low Point Cal’ window illustrated in Figure 10.8.4B will appear. This
window shows the maximum and minimum acceptable values and the current reading. The [?] key
pops up a help dialog with instructions on how to use this window. Enter the current known pressure
in the ‘Desired Reading’ data window and press the [OK] key.
Figure 10.8.4A - [2 Point Calibration] Key Figure 10.8.4B - Low Point Cal Window
The ‘High Point Cal’ window illustrated in Figure 10.8.4C will appear. It’s function is identical to the
‘Low Point Cal’ window. Enter the new known pressure and press the [OK] key.
The [Cancel] key will exit either window and not make any adjustments to the calibration of the active
turndown.
The ‘Date of Calibration’ window illustrated in Figure 10.8.4D will appear. Enter the date of calibration
in a mm/dd/yyyy format exactly, including the ‘/’ separation marks. Press the [OK] key and the new
data of calibration will be saved to the turndown.
Figure 10.8.4C - High Point Cal Window Figure 10.8.4D - Date of Calibration Window