See the below Excel file for a worksheet that can be used to track and compare AutoZero (zOffset) and PA and PM values for Q-RPTs used in PPC3, PPC4, RPM4, PPCH and PPCH-G pressure controllers and monitors.
It can also be used with absolute mode PM200 and PM600 modules by using their applicable measurement uncertainty specifications (and 1-year drift spec. of 0.007%FS for PM600 module). Note that for these modules; the equivalent to PA value is C0 value, the equivalent to PM value is C1 value, and AutoZero is used interchangeably with the term zOffset.
See this article for PPC4 and other Q-RPT based pressure products - Uncertainty Analysis
And this article for PM Modules (PM200, PM500, PM600), 6270A Uncertainty Analysis for Pressure Modules
Contact Fluke Calibration Pressure Technical Support at the below link or by calling +1.877.355.3225