Appendix: Glossary
NiCaVis 705 IQ TS
56
ba77189e01
05/2017
10 Appendix: Glossary
Absorbance (Absorp
-
tion)
Attenuation of the light beam when it penetrates the sample.
Adjusting
To manipulate a measuring system so that the relevant value (e.g. the
displayed value) differs as little as possible from the correct value or
a value that is regarded as correct, or that the difference remains
within the tolerance.
Calibration
Comparing the value from a measuring system (e. g. the displayed
value) to the correct value or a value that is regarded as correct.
Often, this expression is also used when the measuring system is
adjusted at the same time (see adjusting).
Calibration value pair
Value pair consisting of the raw value measured by the
NiCaVis 705 IQ TS sensor, and a reference value measured e.g. by a
laboratory determination. The calibration value pairs are the result of
the user calibration.
Concentration
Mass or amount of a dissolved substance per volume, e. g. in g/L or
mol/L.
Measured parameter
The measured parameter is the physical dimension determined by
measuring, e.g. pH, conductivity or D.O. concentration.
Measured value
The measured value is the special value of a measured parameter to
be determined. It is given as a combination of the numerical value and
unit (e. g. 3 m; 0.5 s; 5.2 A; 373.15 K).
The measured value is determined from the raw value taking into
account the data from a user calibration. The measured value is
displayed together with the raw value in the measured value display.
Measuring gap
The measuring gap is between the two measurement windows. In the
measuring gap, the light beam penetrates the test sample.
Measuring system
The measuring system comprises all the devices used for measuring,
e. g. measuring instrument and sensor. In addition, there is the cable
and possibly an amplifier, terminal box and armature.
Reference sample
Random sample of the test sample for comparative chemical-analyt
-
ical laboratory analyses intended for user calibration.
Resolution
Smallest difference between two measured values that can be
displayed by a meter.
Sample matrix
Composition of the test sample of different individual substances.
Test sample
Designation of the test sample ready to be measured.
Ultrapure water (H2O
dist.)
Ultrapure water is distilled or deionized water suitable for analysis
purposes.
All manuals and user guides at all-guides.com
all-guides.com
