Jenway 6850 - Manual (Page 24)

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5.2.3 Selecting the Unit of Measurement
The unit of measurement can be selected by pressing the function key below the Unit option. The
required unit of measurement can then be selected from the available options of IU, mM/L, M/L,
μg/mL, mg/mL, mg/L, mEq, ppb, ppm, % and other. Press the Enter key to confirm.
5.2.4 Entering a Concentration Factor
The concentration of a sample can be determined by
using an appropriate multiplication factor with the
measured photometric reading. A concentration factor
can be entered by pressing the function button below
the Factor option. The required factor can then be
entered using the numerical keypad. Press the Enter
key to confirm.
5.3 CALIBRATION
5.3.1 Zero Calibration
A zero calibration can be performed at the same
wavelength at which the sample will be measured. With
both the reference a sample positions empty and the
sample chamber lid closed, press the 100%T/0Abs
button to zero the instrument’s photometric reading.