PART THREE - OPERATION
SECTION 4 - CALIBRATE MENU
Rev. 7-1201
Model P63 pH Analyzer
45
General Procedure:
You can perform a single or two-point calibration using the
“Pre-Defined Buffer” method. However, two-point calibration
is strongly recommended. For best accuracy, select buffer
values from an appropriate built-in buffer set that surround
the normal pH value of the process.
1.
Before calibrating for the first time, you must enter a low
and a high pre-defined buffer value from one of the five
built-in buffer sets. (For a single-point calibration, only
one pre-entered buffer value is required.) To select and
enter pre-defined buffer values:
A.
Access the CONFIGURE main menu by pressing
the
CONFIG key
.
B.
Use
Ø
Ø
key
to select the “Main Parameter” sub-
menu, and press
ENTER key
.
C. Use
Ø
Ø
key
to select the “Cal Buffer Values” sub-
menu, and press
ENTER key
.
D. Use
Ö
Ö
key
to select the desired buffer set. As each
buffer set is highlighted, only buffer values in that
set are shown (see example of buffer setup screen
below):
E.
Use
Ø
Ø
key
to select the “Low Buffer” line. Use
×
×
and
Ø
Ø
keys
to select the desired low buffer
value.
F.
Press
ENTER key
to select the “High Buffer” line,
and press
Ö
Ö
key
to select its field. Use
×
×
and
Ø
Ø
keys
to select the desired high buffer value.
G. Press
ENTER key
to select the “SAVE & RETURN”
line. Press
ENTER key
again to enter the displayed
low and high buffer values into memory.
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