Xylem WTW Alyza IQ PO4, Руководство по эксплуатации

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Alyza IQ PO4 Appendix
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Measuring system A measuring system comprises all the devices used for measuring, e. g.
meter and sensor. In addition, there is the cable and possibly an amplifier,
terminal box and armature.
MSDS Safety datasheets (Material Safety Data Sheets). Usually, the chemicals
manufacturers provide safety datasheet with the chemicals delivered. The
safety datasheets provide security relevant information on the substances
delivered. MSDS can also be found on the Internet.
Operator Legal designation for the owner of the system. The operator is responsible
for the installed system, especially for the safety and training of the staff.
pH value A measure of the acidic or basic effect of an aqueous solution. It corre-
sponds to the negative decadic logarithm of the molal hydrogen ions ac-
tivity divided by the unit of the molality. The practical pH value is the value
of a pH measurement.
PPE Personal protective equipment. The PPE includes clothing and other
equipment that is used to protect you against risks at your place of work.
You must always wear your PPE while doing dangerous jobs to avoid in-
juries or damage to your health. Typical examples are gloves, protective
goggles, face protection shield, breathing protection, ear protection, safe-
ty helmet, safety shoes, fall protection. The PPE must fulfill the national
standards and laws.
Reset Restoring the original condition of all settings of a measuring system.
Resistance Short name for the electrolytic resistivity. It corresponds to the reciprocal
value of the electrical conductivity.
Resolution Smallest difference between two measured values that can be displayed
by a meter.
Slope The slope of a linear calibration function.
Standard solution A solution whose measured value is known per definition. It is used to cal-
ibrate a measuring system.
Test sample Designation of the test sample ready to be measured. Normally, a test
sample is made by processing the original sample. The test sample and
original sample are identical if the test sample was not processed.
Transmission The part of the light that goes through the sample.