Teledyne M5000B operating instructions Operations/Analysis Unit

4 Operations/Analysis Unit

instrument is set up to analyze, then the SPAN control must be adjusted for a full scale reading, i. e., 200 ppm water in EDC.

10.Re-checktheZEROsettingwithzerofluid.

11.If desired, the linearity of the analyzer can be checked with a fluid intermediateinconcentrationbetweenthezeroandthespanfluid.

12.The analyzer is now calibrated. It is often desirable to check calibration (fine tune) on a dynamic sample from your process, double checking the 5020 analyzer response with laboratory analyzed grab samples. This is desirable where there is a possibility that your sample stream may have some background materials not in the makeup of the calibration fluid.

13.From time to time, re-check the zero setting. If it is found that there is no zero drift, re-checking the zero setting may become unnecessary or may be performed only on an occasional basis.

14.Some optical filters used in some applications will be so temperature sensitive that screening must be performed with the filters near the operating temperature.

DIRECTIONS FOR USING TELEDYNE CALIBRATION OPTIONS

FOR ON-LINE PROCESS PHOTOMETRIC ANALYZERS

IGeneral

These calibration options consists of procedures for calibrating analyzers on-line. These techniques are offered when process conditions (high pressures, temperatures, sample phase changes) are extremely difficult to deal with and calibration standards are impossible, difficult to obtain, are too expensive to use due to volume consumption into the system, are unstable, or are difficult to introduce into the analyzer or sample system because of toxicity, pressure, etc. Also many times the sample stream composition is difficult to match with a calibration fluid.

In one case an optical absorbing filter(s) is inserted into the light path of the analyzer. The absorber is actuated by a switch(s) located on the readout panel of the control unit. The option functions by pre- senting a calibrated and reproducible absorbance or fluid into the light path of the analyzer.

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