Jenway 73 Series PC software - Manual (Page 23)

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4.1.7 Auto Logging
Auto logging allows repeat
measurements of the same sample
to be performed with a set time
interval between each measurement.
Use the arrow icons to increase or
decrease the time interval between
sample measurements and use the
arrow icons to select the number of
readings required. If auto logging is
not required the values do not need
to be adjusted in this screen.
4.2 CALIBRATION AND SAMPLE MEASUREMENT
In the concentration measurement mode calibrations against a standard or a factor can be performed
following a zero calibration. If the factor is not known calibration against a known standard is
performed in order to calculate the factor. However if the factor is known there is no need to calibrate
using a standard. The calibrations must be performed at the same wavelength at which the sample
will be measured.
4.2.1 Calibration and sample measurement using a factor
Once the settings have been entered the zero calibration should be performed.
Insert the cuvette containing the blank sample into the sample chamber and close the instrument lid.
Click on the Zero button; this sets the instrument to zero absorbance.
Once a calibration is complete the
Read and Auto Log buttons are
activated. If the settings menu is re-
entered following the zero calibration
it is not possible to change the
wavelength. If the wavelength needs
to be adjusted another tab should be
opened.
If the settings menu is re-entered following the zero calibration it is possible to change the