Vaisala PTU300 - Manual (Page 167)

Chapter 7 ____________________________________________________ Calibration and adjustment
VAISALA _______________________________________________________________________ 165
MPCI
Use the MPCI command
- to activate or deactivate multipoint pressure adjustment function
- to enter new multipoint pressure measurement corrections
- to edit existing multipoint pressure measurement corrections.
First deactivate the previous pressure corrections by using the LCI OFF
and/or MPC1 OFF commands. Precalibration of the transmitter then
gives the required corrections.
When entering new multipoint corrections for pressure, always start at
the low-pressure end and then go up the pressure range. Key in the
multipoint corrections for each pressure transducer separately.
NOTE The new multipoint corrections for pressure measurement will always
cancel the previous corrections as well as the valid date of calibration of
the transmitter.
Example:
>mpci
P1 multi adj. : OFF ? on
P1 1.reading : 0.000 ? 900
P1 1.correction: 0.000 ? 0.2
P1 2.reading : 0.000 ? 950
P1 2.correction: 0.000 ? 0.22
P1 3.reading : 0.000 ? 1000
P1 3.correction: 0.000 ? 0.27
P1 4.reading : 0.000 ? 1050
P1 4.correction: 0.000 ? 0.31
P1 5.reading : 0.000 ? 1100
P1 5.correction: 0.000 ? 0.32
P1 6.reading : 0.000 ? 1150
P1 6.correction: 0.000 ? 0.33
P1 7.reading : 0.000 ? 1200
P1 7.correction: 0.000 ? 0.34
P1 8.reading : 0.000 ?
P1 8.correction: 0.000 ?