Operator‘s Manual FERITSCOPE
®
FMP30
Page 205
Glossary
Carriage Return (CR)
Carriage return. CR is a character of the ASCII character set with the
following function: When data or commands are entered, the line one
is currently working on will be closed by pressing the CR key (Enter or
Return key); the information entered will be processed accordingly. The
cursor is again placed at the beginning of the line. It is usually used to-
gether with the LF (Line Feed) character to start the next line at the be-
ginning.
Characteristic
Calibration curve (characteristics)
Chi squared test (
²-Test)
This test is performed during the final evaluation with the FERITSCOPE
®
FMP30 to determine whether the evaluated measurements have a nor-
mal distribution (for more than 40 readings).
(Gaussian normal distribution, Gaussian distribution).
Class
Range between a lower and an upper class boundary (e.g.,
-ferrite
content limits). The single readings of a measurement series can be sort-
ed according to classes of equal width, which cover the entire range of
the measurement series. The number of measurements per class plotted
for each class is called a histogram.
Coefficient of Variation
Confidence level
Control chart
Process control chart (quality control chart, SPC chart)
Control Limits
If the measurements are documented in a process control chart, the con-
trol limits define the area where the measured variable may be located
without the need for process control measures.
Corrective calibration (one-point or two-point calibration)
Adjustment of the instrument using a Base and one or two calibration
standards. The corrective calibration includes calibration and adjust-
ment.
During the corrective calibration, the calibration curve is adjusted to the
individual measuring application that the open application is calibrated
for. The coefficients of the adapted calibration curve are stored in the
open Application. The coefficients of the master characteristic stored in
the EEPROM of the probe plug are not affected.
