Branson Krautkramer MIC 10, User Manual

Page: 45 / 146

Carrying out the measurement
Measurement on low-alloy and unalloyed steels can
be directly made without calibration because the cali-
bration values for these materials are preprogrammed
in the instrument.
The measurement is normally made as a short time
measurement with a fixed programmed measurement
time of 4 ms. Due to this, measurement inaccuracies
caused by unsteady holding of the probe are largely
excluded.
–
Make certain that the probe is connected to the in-
strument and that the conical probe attachment is
screwed on.
–
Turn the instrument on.
–
When the instrument is already turned on, you are
able to carry out the measurement from each func-
tion without having to return to the
MEASURE-
MENT level.
–
Select the required measurement reading display
(single or average value) and the hardness scale
and set, if necessary, the alarm threshold.
–
Position the probe tip vertically onto the surface of
the test material. Pay attention to correct probe
handling.
The probe symbol on the display indicates that contact
has been made.
0
Note:
The measurement must be carried out within 3 sec-
onds after the probe has made contact with the test
material. If the 3 seconds is exceeded a error mess-
age will appear on the display. In this case, press
+
in order to delete the message or carry out another
measurement.
–
Press the probe down to the limit for about 1 second.
An acoustic signal indicates the end of the measure-
ment.
The measured hardness value is displayed.
In most cases you will carry out a series of measure-
ments (a set) and not single measurements.
–
Position the probe to another point on the test ma-
terial and carry out a further measurement.
Hardness measurement
Operation
Krautkrämer MIC 10 Issue 08, 08/01 5-9
Carrying out the measurement
Measurement on low-alloy and unalloyed steels can
be directly made without calibration because the cali-
bration values for these materials are preprogrammed
in the instrument.
The measurement is normally made as a short time
measurement with a fixed programmed measurement
time of 4 ms. Due to this, measurement inaccuracies
caused by unsteady holding of the probe are largely
excluded.
–
Make certain that the probe is connected to the in-
strument and that the conical probe attachment is
screwed on.
–
Turn the instrument on.
–
When the instrument is already turned on, you are
able to carry out the measurement from each func-
tion without having to return to the
MEASURE-
MENT level.
–
Select the required measurement reading display
(single or average value) and the hardness scale
and set, if necessary, the alarm threshold.
–
Position the probe tip vertically onto the surface of
the test material. Pay attention to correct probe
handling.
The probe symbol on the display indicates that contact
has been made.
0
Note:
The measurement must be carried out within 3 sec-
onds after the probe has made contact with the test
material. If the 3 seconds is exceeded a error mess-
age will appear on the display. In this case, press
+
in order to delete the message or carry out another
measurement.
–
Press the probe down to the limit for about 1 second.
An acoustic signal indicates the end of the measure-
ment.
The measured hardness value is displayed.
In most cases you will carry out a series of measure-
ments (a set) and not single measurements.
–
Position the probe to another point on the test ma-
terial and carry out a further measurement.
Hardness measurement
Operation
Krautkrämer MIC 10 Issue 08, 08/01 5-9