Aquametrix 2300 Multi-Input Controller User Manual - Manual (Page 31)

N116-133 AquaMetrix 2300 Installation and Operation Manual Page 31
Figure 22- Menu pages for the probe in slot 1, Tank pH, showing the first calibration page.
Selecting to modify either point will bring up the screen below in Figure 23. Here you can
enter the mA current and solution values that may be known for the probe, or you can do a
live calibration, using the measured current for a particular solution. For pH as shown, you can
place the probe in a known reference solution: the reference solution pH for the previous
calibration is remembered and doesn’t need to be entered again if the same. Wait until the
reading at Use measured mA is stable, and select it and hit Enter. Move down to Confirm
Calibration and hit Enter to save this data point. To enter numbers manually a keypad entry
screen is used. Repeat if desired for the second point and scroll down to Done.
Figure 23 – Point 1 calibration screen.
To change the K Factor of a flow meter, go to the page with choice of probes and select one of
the flow probes. A screen for changing the K factor will appear, and selecting it will bring up a
numeric keypad entry screen. These screens are show in Figure 24. Note that the previously
stored value for the K Factor is shown in parentheses in the entry pad. The “Back” button on
the keypad will erase the last digit entered, and don’t forget that the navigation keys move
you around the keypad. Use Done to save the entry, and Done again to save the calibration.