23
Continue Y
The controller will hold this display until you have replaced the electrode in the process, and press
ENTER
. Control will not begin until
ENTER
is pressed, or 10 minutes go by. If calibration
failed, control will begin using old calibration setpoints.
If using manual temperature compensation, the first display will be:
Cal Temp °F/C 68
Use the arrow keys to enter the actual temperature of the buffer solutions. If using automatic
temperature compensation, this display will not appear. Press
ENTER
to continue.
Rinse Electrode
Remove the electrode from the process and rinse it off. Press
ENTER
to go to the next step.
First Buffer
This is a prompt to place the electrode in the first buffer. In a few seconds the controller will
automatically go to the next step.
1st Buffer 7.00
The bottom line will display "1st Buffer" on the left hand side and "7.00" on the right hand side.
Use the arrow keys to set the pH value of the 1st buffer, then press
ENTER
. The top line will now
show the temperature and the mV input from the electrode. The mV will blink until the value is
stable. The controller will automatically go onto the next step or you may press
ENTER
to go to
the next step.
Rinse Electrode
Remove the electrode from the buffer and rinse it off. Press
ENTER
to go to the next step.
Second Buffer
This is a prompt to place the electrode in the second buffer. Again, in a few seconds the controller
will automatically go to the next step.
2nd Buffer 4.00
The bottom line will display "2nd Buffer" on the left hand side and "4.00" on the right hand side.
Use the arrow keys to set the pH value of the 2nd buffer, then press
ENTER
. The top line will now
show the temperature and the mV input from the electrode. The mV will blink until the value is
stable. The controller will automatically go onto the next step or you may press
ENTER
to go to
the next step.
The controller will go on to the next step once the mV signal is stable.
Cal Successful/Cal Failed
If the electrode response is good, then the display will read "Cal Successful". If the mV output of
the electrode did not change enough between the two buffer solutions, it will read "Cal Failed". A
failure usually means that the electrode needs to be cleaned, or replaced. It will also display the %
difference from theoretical slope. A failure occurs if the slope is more than 80% different than
theoretical.
2 Pt Calibration for pH
electrodes, not using
Auto Buffer Recognition
Continue Y
The controller will hold this display until you replace the electrode in the process and press
ENTER
. Control will not begin until
ENTER
is pressed or 10 minutes go by.
Rinse Electrode
Remove the electrode from the process and rinse it off. Press
ENTER
to go to the next step.
First Buffer
This is a prompt to place the electrode in the first buffer. In a few seconds the controller will
automatically go to the next step.
Input XX mV
The display will show the mV reading from the electrode. The entire number will blink until the
reading is stable, then the display will change to:
Buffer XX
Now you can change the mV value of the buffer, by using the arrow keys and pressing
ENTER
.
2 Pt Calibration for ORP
electrodes (no Auto
Buffer Recognition
available)
Rinse Electrode
Remove the electrode from the buffer and rinse it off. Press
ENTER
to go to the next step.
