Instruction manual for MH & MH+M
11.3 Procedure
In order to determine the right point, each height H1 is recalculated according to H2 (which corresponds to the centre of the ball-tip) and the radius R of the insert (defined when detecting the probe constant).
There are several processes to determine the probe constant. The TESA master piece design has been thought to minimise the determination time and avoid any errors that could occur when moving the master piece during a sequence.
The calibration procedure of the probe (or determination of the probe constant) requires at least two probe contacts for each measurement point.
11.4 Steps
The difference between the two values obtained for each point cannot exceed a maximum value that depends on the selected resolution. If it is higher than this limit value, the difference is displayed. The user then has the choice to accept it and bypass the process with or to restart the process for a new measurement.
If the user accepts the result, the number of digits after the comma will be reduced to be in line with the probe constant.
60
Each time the procedure for determining the probe constant is started, the above page is automatically displayed.
If you are using a motorized height gauge, a warning message will be displayed.
Before activating the process for automatic determination of the probe constant, the insert must be positioned at the height of the master piece. As this displacement is done automatically, the following message will be displayed to avoid any collision with another object:
Instruction manual for MH & MH+M
This example shows a page presenting a procedure defined for a motorised MICRO-HITE+M height gauge. When using a manual instrument, the points have to be measured using the handwheel and moving the probe from top to bottom.
If the instrument is motorised, the procedure can be started clicking on on the keyboard or on the screen.
When using a motorised instrument, the insert is automatically positioned at the height of the centre of the reference when the user activates the process for determining the probe constant. This height can be configured in the system options .
The groove measurement process is active by default. Most of the time, measurements are carried out using a ball probe. However, if the user wants to define the probe constant by measuring the rib of the master piece, the user first has to change the mode by pressing the key .
61
Instruction manual for MH & MH+M
Definition of keys
Change the process for a definition of the probe constant using the rib of the master piece.
Change the process for a definition of the probe constant using the groove of the master piece.
Once the process is finished and the probe constant defined, a calibration block is automatically created in the measurement list of the mode. The measurements can then start in ST2 mode.
The next step is to define the reference as shown in the following image.
62