Technical Note
74
■ Appendix
This section describes the technical information, printer formats, and specifications of the
instrument.
● Appendix 1
pH calibration can be performed according to several buffer standards. The most common
standard is the US buffer standard. The default setup is US buffer standard. Alternative
standards that can be chosen are NIST, NIST2, DIN and CUST (Custom).
The pH buffers are temperature dependent i.e. the pH value changes with change in
temperature. The meter is intelligent to detect the temperature and pH value associated with
buffer when calibration is performed. It remembers all the temperature vs. pH value for all the
standards.
The pH vs. temperature values for the various standards are listed below:
< USA >
Temp. (°C)
pH 1.68
pH 4.01
pH 7.00
pH 10.01
pH 12.46
0
1.67
4.01
7.12
10.32
13.42
5
1.67
4.01
7.09
10.25
13.21
10
1.67
4.00
7.06
10.18
13.00
15
1.67
4.00
7.04
10.12
12.81
20
1.68
4.00
7.02
10.06
12.63
25
1.68
4.01
7.00
10.01
12.45
30
1.69
4.01
6.99
9.97
12.29
35
1.69
4.02
6.98
9.93
12.13
40
1.70
4.03
6.97
9.89
11.98
45
1.70
4.04
6.97
9.86
11.84
50
1.71
4.06
6.97
9.83
11.70
55
1.72
4.08
6.97
9.81
11.57
Summary of Contents for LAQUA 2000 Series
Page 2: ......
Page 4: ...II MEMO...
Page 13: ...For Your Safety XI JPN EN61326 1 EN61010 1 II 2...
Page 54: ...Ion Setup 36 key key key key...
Page 96: ...Printout Summary 78 Appendix 2 pH mV Relative mV Printer Format Measurement...
Page 97: ...Printout Summary 79 Ion Conductivity Resistivity...
Page 98: ...Printout Summary 80 Salinity TDS...
Page 99: ...Printout Summary 81 Printer Format Data Log...
Page 100: ...Printout Summary 82 Ion pH Printer Format Calibration...
Page 101: ...Printout Summary 83 Conductivity Salinity...
Page 106: ...88...
Page 107: ......
