Teledyne 6600 manual Setup of Internal Span Flag Calibration

Oil in Water Part III

Calibration Fluid Introduction:

1.Introduce zero fluid through the calibration reservoir and allow to flow through all. This requires V2, V3 open and V4 (adjusted) to give flow of 50-200ccm as noticed by liquid level dropping in calibration reservoir for Zero and Span in. See 5.5, part I.

As soon as the sample cell is filled with zero fluid and the display reading stabilizes, zero the analyzer.

2.As soon as the zero fluid is about to be emptied from the reservoir, add a small amount of span fluid. Make sure that no air

accidentally enters the sample system. This technique assures a quick exchange of zero fluid for span fluid and conserves span fluid. As soon as the sample cell is filled with span fluid and the

display stabilizes for the analyzer span the analyzer (see Part I, Sec 5.5). The instrument is now calibrated.

Setup of Internal Span Flag Calibration

Reintroduce zero fluid through and fill sample cell and stabilize display again.. As soon as the sample cell is filled with zero fluid and the meter reading stabilizes at zero again, manually introduce and adjust the span flagreading according to the procedure outlines in section — of the 6600 Control Unit. The exact ppm value of the span filter (Flag) must be manu- ally introduced first and ppm oil representation determined before the auto- span mode can be selected to correct any span errors from the original calibration automatically.The span flag optical filter has been chosen to give an approximate upscale reading between 50-90% of the range of the instru- ment. The span flag sensitivity once setup can be automatically programmed by the 6600 multiprocessor electronics to update the span sensitivity hourly during the auto-cal (zero plus span functions) of the instrument measurement. This enhanced auto-cal feature assures high accuracy is maintained between normal recommended manual field calibration using zero and span fluids which must occur within a 6 week period minimum.

Teledyne Analytical Instruments Part III: 1-31