Using The One Point Adjustment Calibration Feature - Thermo Scientific Orion AquaMate 8000 UV-Vis User Manual

10
Water Analysis Application

Using the One Point Adjustment Calibration Feature

Using the One Point Adjustment Calibration Feature
42 Orion AquaMate 7000 Vis and Orion AquaMate 8000 UV-Vis
The AquaMate can implement factors or curves up to third order polynomials. As shown in
the screen, the format for entering the equation is:
Result = A + Bx + Cx
where "x" is the absorbance at the programmed wavelength.
For methods with a simple multiplicative factor, enter this factor as value B. e.g. If the factor
given with the kit is 12.68, set B=12.68, and your equation will be
Result = 12.68 * Abs
where ABS is the measured absorbance at the wavelength specified in the first parameters
λ
screen.
A large majority of commercial water kits use factor sets that require only B, or only A and B.
A limited number may require factors C and D.
Note You can choose a result unit from a list of pre-programmed options or customize
your own unit. Simply select Result Units and press enter. The list will be displayed. For
more information, see
Use the one point adjustment feature prior to running a preprogrammed test method to
ensure accurate measurements. This procedure is recommended each time a new batch of
reagents are used to account for variations in batch-to-batch reagent composition and other
factors that affect the accuracy of a method with a fixed calibration curve.
When the one point adjustment feature is off, no adjustment is applied when running the test
and test results are calculated exactly according to the preprogrammed equation.
1. Load the test method in the Water Analysis test menu.
2. If the 1 pt Adjust parameter is set to Off, press the
press Enter to set the parameter to On.
2 3
+ Dx
λ
"Concentration Units" on page 33.
keys to highlight 1pt Adjust and
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