Calibration In 3 Points - Metro DataVac M1 User Manual

M1 – M3 AG
After calibration is it possible to check the pressure. For this you need to click on the
unit "mm", the unit will then become BAR for few seconds.
This feature allows for example to check if the restrictor installed on the air input is the
right one. The ideal pressure at the nominal should be 2.7 BAR. If you are too far from
this value, for example 1.5 BAR, you should change the restrictor for a bigger one.
Using the wrong restrictor affects the linearity. For a simple sorting Go/NoGo, the
results will be correct, but if you need to have the real value and/or to use the class
sorting functionality, you need to use the most adapted restrictor. (see chap 3.3.1).
7.3.1.2.

Calibration in 3 points

There is the possibility to use 3 points to calibrate the measure. When the button
"central" is selected, a third master point is asked. The calibration process stays the
same, with one manipulation added.
This feature can be interesting when controlling a part with large tolerances.
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