DeFelsko PosiTector BHI Guía Rápida página 6

Some causes for the gage to not read properly are the indentor being
damaged, incorrect pressure being applied to the test disk or
temperatures beyond normal conditions.
Verify accuracy at the beginning and the end of each work shift. During
the work shift, if the Gage is dropped or suspected of giving erroneous
readings, its accuracy should be re-verified.
Adjustment
Adjustment, or Calibration Adjustment, is the act of aligning the Gage's
readings to match that of a known reference in order to improve
accuracy of a gage on a specific material. (see Cal Settings, pg. 4)
The PosiTector BHI is factory calibrated and for most applications
no calibration adjustment is required. However, there may be times
when a zero, one or two point adjustment is necessary including
after indentor replacement or to compensate for indentor wear.
Zero
Zeroing the Gage may be necessary after indentor replacement
or when the indentor is worn. For best accuracy, the Gage
should be zeroed on the included glass plate.
1. Select
2. Press the ( + ) button to select the number of readings
3. Measure on the glass plate, ensuring that both the indentor
foot and leg are resting on the glass plate. After the last
measurement, the Gage will calculate a Zero which
represents the average of all the Zero readings taken.
Cal Settings Menu
Cal Settings Menu
from the menu.
Zero
4