Crystal FastCalXP Calibration Software Manual de usuario descargar pdf (Pagina 16)

Calibrating Gauges  14

FastCalXP Operation Manual



Calibration Schedule

FastCalXP keeps track of the calibration schedule for all gauges and references in the database.

1 To view a list of upcoming calibrations, choose Upcoming Calibrations Report from the View menu.

2 Use the radio buttons to view a list of Gauges or a list of References.

The time span over which FastCalXP looks for upcoming calibrations is speci ed under the

Con g Settings tab of the FastCalXP Options. Refer to the discus-

sion of Settings and Options on page 26.



REFERENCES

A reference is the digital pressure gauge to which the gauge under test is compared during a calibration. FastCalXP is designed to work with Crystal Engineer-

ing’s nVision Reference Recorder, XP2i (XP2) digital pressure gauges, and 30 Series calibrators connected to the computers serial or USB port.

In addition to pressure references, the FastCalXP database can store references used to verify ambient conditions at the calibration work station such as ambi-

ent air pressure, temperature and humidity. These references can be automatically listed on all certi cates. Refer to the discussion of Managing References in

the in the FastCalXP database in Managing the Da

tabase on page 33

Reference Selection

Reference selection is perhaps the most important factor in ensuring the most accurate calibration possible. Many metrology and/or quality systems require

that the uncertainty of the reference be at least 4 times better than the device being tested, but your metrology requirements may be di erent.

Crystal XP2i Digital Test Gauges have an accuracy of ±(0.02% of full scale) in the lower 20% of their ranges and an accuracy of ±(0.1% of reading) in the remain-

der of the range. 30 Series calibrators have an accuracy of ± (0.05% of reading plus 0.005% of full scale). nVision Reference Recorders have various accuracy

statements from range to range. Some ranges have 0.025% of reading accuracy from 30% to 100% of full scale. All Crystal products are available with a variety

of pressure ranges to suit a wide range of needs.

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