Sharp IQ-8000 Manual de Serviço descarregar pdf (Página 62)

Appendix: Glossary CarboVis 70x IQ TS

10 - 2

ba75950e02 11/2012

Test sample Designation of the test sample ready to be measured.

Measuring gap The measuring gap is between the two measurement windows. In the

measuring gap, the light beam penetrates the test sample.

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.

Zero adjustment Measuring and saving the absorbance spectrum of ultrapure water.

Defines the zero points in the spectrum for all wavelengths. The light

beam is not alleviated at the zero point. The zero point influences the

calculation of the raw value.

Sample matrix Composition of the test sample of different individual substances.

Reference sample Random sample of the test sample for comparative chemical-analyt-

ical laboratory analyses intended for user calibration.

Ultrapure water (H2O

dist.)

Ultrapure water is distilled or deionized water suitable for analysis

purposes.

Raw value The raw value is determined from the spectrum while taking into

account the data from the zero adjustment. The raw value is displayed

on the right side of the measured value in the measured value display.

SAK, SAC Spectral absorption coefficient at a certain wavelength. The SAC 254

value is a measure of the contents of organic compounds.

Spectrum Distribution of the absorbance depending of the wavelength.

With the aid of the zero adjustment and user calibration, the measured

values are calculated from the spectrum.

TOC Abbreviation for total organic carbon. Total amount of organically

bound carbon in water.

UVT Transmission measurement at a certain wavelength.

The UVT-254 value is standardized to 10 mm gap width.

1 2 ... 57 58 59 60 61 62 63 64 65 66

Sem comentários

Sharp IQ-8000 Manual de Serviço Página 62