FCA
‐
22
Instruction
Manual
Page 9
#7
Accept
the
calibration
Press
the
MENU
SELECT
down
key
to
accept
the
new
value
#8
Return
to
Home
Screen
Press
the
CALIBRATE
down
key
to
return
to
the
Home
Screen.
pH
Calibration
The
PHS10
pH
sensor
was
calibrated
with
pH
7.0
and
pH
10.0
buffers
at
the
factory
before
shipping.
Verify
the
displayed
pH
agrees
with
the
actual
pH.
If
the
pH
value
deviates
by
more
than
0.2
pH
then
adjust
the
value
in
the
Buffer:
#1
pH:
Menu
by
setting
the
existing
pH
7
value
to
the
actual
sample
value
and
then
accepting
the
calibration.
For
a
detailed
description
see
Electrode
Standardization
in
the
C
‐
22
manual.
pH
Calibration
Screen
Shots
Calibration
2
point
(Zero
pt.
and
Slope)
#
1
Home
Screen
Press
Menu
Select
Up
button
#2
Selection
Menu
Status
Screen
Press
Menu
Select
Up
button
#3
Selection
Menu
Set
Up
Screen
Press
Menu
Select
Up
button
#4
Selection
Menu
Buffer
Screen
(calibration)
Select
BUFFER
by
simultaneously
pressing
the
horizontal
CALIBRATE
keys.
#5
Zero
Point
Calibration
Initiate
the
calibration
by
simultaneously
pressing
the
horizontal
CALIBRATE
keys
with
the
sensor
in
a
7.00
pH
solution,
or…
#5a
Standardize
to
the
Sample
pH
value
Adjust
the
displayed
value
to
agree
with
the
sample
value
using
the
CALIBRATE
keys