7
Ele
(P3
P3P3
P3.0
00
0) REVIEW OF ELECTRODE STATUS
This setting allows you to review the last calibration information about
the electrode conditions.
1. There are 5 calibration points for review in the follow order:
SAVED DATA NIST Buffer range
ISO/ Custom Buffer range
P3.1
% of Calibration slope 0.00 to 4.01 0.00 to 4.50
P3.2
% of Calibration slope 4.02 to 6.86 4.51 to 7.00
P3.3
% of Calibration slope 6.87 to 9.18 7.01 to 9.50
P3.4
% of Calibration slope 9.18 to 14.00 9.51 to 14.00
P3.5
Calibration offset value in mili-volt (mV)
2. Press and display will show value in percentage (%) for
P3
P3P3
P3.1
11
1. Repeat for the next value, in the above table order.
3. A good electrode should have a value of above 75% and below
115%. Otherwise, the electrode should be replaced.
4. At P3.5, display will show the calibrated offset value in mV. A good
electrode should have a value not greater than ±60mV. Otherwise,
the electrode should be replaced.
5. Press to return to ELE
ELEELE
ELE (P3
P3P3
P3.0
00
0)
6. Press to go to next parameter.
Buf
(P4
P4P4
P4.0
00
0) BUFFER CALIBRATION STANDARD
This setting allows you to select ISO, NIST or customized buffer
standard. Factory preset is ISO standard.
ISO (i
ii
iSo
SoSo
So) buffer standards are pH1.68, 7.00, 4.01, 10.01, 12.45 and
NIST (n
nn
ni
ii
iSt
StSt
St) buffer standards are pH1.68, 4.01, 6.86, 9.18 and 12.45,
which are preset in this meter, and will be automatically recognized
during calibration.
Select customize (CUSt
CUStCUSt
CUSt) if you have other standards other than Nist
buffer solutions. This will allow you to set each calibration point to the
standard buffer solution available, which are about to calibrate.
1. Press and display will show CUSt
CUStCUSt
CUSt (P4
P4P4
P4.1
11
1) flashing.
2. Press once to select I
II
ISO
SOSO
SO, n
n n
ni
ii
iSt
StSt
St or CUSt
CUStCUSt
CUSt. Press and
display will return to BuF
BuFBuF
BuF (P4
P4P4
P4.0
00
0).
3. Press to go to next parameter.
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