Pyxis SP-910 - Figure 18 Method Unit Selection; Figure 19 Slope Calibration

26
Figure 18 Method Unit Selection
5.8.2 Slope Calibration
If the method has been calibrated prior to shipping, there is no need to
calibrate unless a calibration check indicates that the method needs a
calibration. The following steps are used to calibration a method:
1. Use a calibration standard of known concentration. Follow the steps
required by the method and note the value reported by the SP-910.
2. If the measured value differs from the known standard value, Press the
CONFG button to launch the method configuration page.
3. Press the slope calibration button SlpCal. A numeric keyboard will be
displayed.
4. Enter the concentration value and press the OK key on the enter key in
the numeric keyboard to return to the configuration page.
5. Press the EXIT button. Press the OK key to accept the calibration or other
key to cancel the calibration.
Figure 19 Slope Calibration
For best results, the concentration of the standard solution should be less than
the maximum concentration for the method (table 2) and greater than the half
of the maximum concentration. For example, to calibrate total chlorine, the