marposs TESTAR Quick read M Manual De Instalacion Y Uso página 55

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3.9 Analog scale = auto
If SCALE = auto is programmed, the system automatically calculates the range value of the
analog scale based on the programmed values of the tolerance limits.
NOTE
If SCALE = auto is programmed, the interval UpperTOL-LowerTOL must be
> 9 micron if the programmed digital display resolution is low (M.RESOL = low)
> 1 micron if the programmed digital display resolution is high (M.RESOL = high)
The programming of SCALE = auto implies that the tolerance center is always positioned in the
central led of the analog display, and the tolerance limits are respectively positioned on left and
right side of the tolerance center for both unilateral (e.g. 0 / + 0,015 mm ) and bilateral tolerance
range (e.g. es. – 0,010 / + 0,005 mm).
Example:
 UPPER TOLERANCE LIMIT = + 0,045 mm
 LOWER TOLERANCE LIMIT = - 0,015 mm
where:
LTL : is the led identifying the lower tolerance limit = - 0,015 mm
UTL: is the led identifying the upper tolerance limit = + 0,045 mm
ZERO: is the led identifying the zero value
CT: is the led identifying the tolerance center = + 0,015 mm
If the values of the tolerance limits are symmetrical with respect to zero, the ZERO led
corresponds with the led of the tolerance center.
3.10 Measurement types
This Quick Read Microcolumn can perform both static and dynamic elaboration of the
measurement.
The type of measurement to be carried out is programmed by choosing for the variable M. TYPE
one of the following:
hold, static, Max, min, M – m, (M+m)/2, (M – m)/2
This mode allows to "freeze" on the display the current static measuring value. To enable it
proceed as follows:
Program M. TYPE = "hold", then exit the programming and carry out the measurement
1.
2. When the measuring value is displayed press ESC
"hold" MEASURING MODE
Chapter 3. Installation 55