Instruction manual for MH & MH+M
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12 PRINCIPLES OF MEASUREMENT
12.1 Generality
Before using the MICRO-HITE or MICRO-HITE+M height gauge, it is important to
remember that the way in which the values are measured is determined by the
measurement problem. It is essential, that the user can define the nature of the
measurement process according to the application, in order to quickly get reliable results.
In general, it is important to ask yourself the following basic questions:
•
Does the measured value require a single or double probe hit?
•
Does the measurement require an inversion of the probing direction?
•
Do you have to measure with or without detection of the culmination point?
•
Does the measurement sequence have to take into account only one (1D) or two
coordinates (2D)?
•
Which accessory fits the most with the desired measurement?
These questions are the first step to guarantee ease of measurement with correct
metrological results.
12.2 Probe support
It is very likely that during the use of the height gauge, the type of application the user will
be confronted will imply accessories changes in order to guarantee a reliable and precise
measurement. Mounting or removing a probe or probe support is a process that requires
to be careful and done in a correct way. Indeed, not mounting it correctly could lead to
significant measurement errors.
In order to guarantee the reliability of the measured values, it is
necessary that the following condition is met: the probe 1 has to be
firmly attached to the probe holder 2, which is fixed on the mounting
shaft 3. Make sure that the two screws of the probe holder 4 and 5 are
tightened. This procedure is the same for all types of probes and
supports.
12.3 Measurement
modes
Once the workpiece and the wanted dimensions to be measured are known, the user has
the possibility to choose among several modes:
ST1
Measurement with unidirectional probing
ST2
Measurement with bi-directional probing
MAX, MIN, Δ
