PART THREE - OPERATION
SECTION 4 - ANALYZER CALIBRATION
Model P33 pH/ORP Analyzer (panel-mount 1/4 DIN)
Rev. 6-1100
56
☞
2.
Press
MENU key
to display a “MAIN MENU” screen.
If the
screen is not showing, use
Ø
Ø
or
×
×
key
to display it.
3.
Press
ENTER key
to display
.
4.
Press
ENTER key
again to display
.
5.
Press
Ø
Ø
key
once to display
.
6.
Press
ENTER key
to display
.
Use
×
×
or
Ø
Ø
key
to view the three states that the analog
outputs (and relays) can be in during calibration:
•
HOLD OUTPUTS:
Holds their present values.
•
XFER OUTPUTS:
Transfers to preset values.
•
ACTIVE OUTPUTS:
Responds to measured value.
With the desired choice displayed, press
ENTER key
to
enter this selection.
7.
With the sensor in the buffer and the
screen displayed, press
ENTER
key
to confirm.
While the
screen is displayed, the
analyzer waits for the pH and temperature signals to
stabilize, measures the buffer value, and automatically
calibrates the point.
Thereafter, a screen like
appears
for 5 seconds to confirm calibration of the point.
NOTE:
Any time the “PLEASE WAIT” screen appears
during calibration, you can manually complete
calibration of the point by pressing the
ENTER
key
. However, this is not recommended be-
cause the pH and temperature signals may not
be fully stabilized, resulting in an inaccurate
calibration.
