3 Basic Operation
47
Table 2 Indicated value of other pH standard solutions at various temperatures (pH)
8.
Check that "Measurement value" has stabilized, then press the ENTER key to start
calibration.
9.
Press the ENTER key to start the span calibration procedure when the message
"Cal complete. Press ENT to Span cal." appears.
10.
Wash the transparent calibration cup 2 or 3 times with deionized water, then fill it to
the reference line with pH 4 or pH 9 standard solution.
11.
Wash the sensor probe 2 or 3 times in deionized water to remove any dirt, then
submerge the sensor probe in the transparent calibration cup.
12.
Press the up (
) and down (
) keys to set the pH value of the pH 4 or pH 9
standard solution containing the submerged sensor probe at the measurement
temperature.
13.
Check that "Measurement value" has stabilized, then press the ENTER key to start
calibration.
Temp. (
C)
pH 7 standard solution
Neutral phosphate
pH 10 standard solution
Carbonate
0 7.12
10.32
5
7.09
10.25
10
7.06
10.18
15
7.04
10.12
20
7.02
10.06
25
7.00
10.01
30
6.99
9.97
35
6.98
9.93
40
6.97
9.89
45
6.97
9.86
Содержание U-51
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