Xylem ProLab 4000 MULTIPARAMETER BENCHTOP METER User Manual
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ProLab 4000
Contents
7
ba75646e02
01/2010
ORP voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Measuring the ORP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
8.2.1
Preparatory activities . . . . . . . . . . . . . . . . . . . . . 90
Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Measuring the relative ORP . . . . . . . . . . . . . . . . 93
Measurement settings . . . . . . . . . . . . . . . . . . . . 96
Ion concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Measuring the ion concentration . . . . . . . . . . . . . . . . . . 98
9.2.1
Preparatory activities . . . . . . . . . . . . . . . . . . . . . 98
Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Measurement settings . . . . . . . . . . . . . . . . . . . 101
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
9.3.1
Carrying out calibration . . . . . . . . . . . . . . . . . . 106
Calibration data . . . . . . . . . . . . . . . . . . . . . . . . 110
Blank value correction. . . . . . . . . . . . . . . . . . . . . . . . . . 111
Reference measurement. . . . . . . . . . . . . . . . . . . . . . . . 112
Measuring with increment procedure (methods) . . . . . . 113
9.6.1
Selecting the measuring method . . . . . . . . . . . 113
Standard addition . . . . . . . . . . . . . . . . . . . . . . . 114
Double standard addition . . . . . . . . . . . . . . . . . 116
Standard subtraction . . . . . . . . . . . . . . . . . . . . 119
Sample addition . . . . . . . . . . . . . . . . . . . . . . . . 122
Sample subtraction . . . . . . . . . . . . . . . . . . . . . 125
Blank value addition (Standard addition with
blank value correction) . . . . . . . . . . . . . . . . . . . 128
10 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
10.2.1 Preparatory activities . . . . . . . . . . . . . . . . . . . . 131
10.2.2 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
10.2.3 Measurement settings . . . . . . . . . . . . . . . . . . . 134
10.2.4 Determining/setting the
10.2.5 Selecting the nonlinear
temperature compensation TC nLF . . . . . . . . . 139
10.2.6 Selecting the linear temperature compensation TC
Lin... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
10.2.7 Selecting and adjusting the nonlinear
temperature compensation TC nLin1
. . . . . 140
10.2.8 Selecting and determining the nonlinear
temperature compensation TC nLin2
. . . . . 142
10.2.9 Selecting and determining the nonlinear
temperature compensation TC nLin3
. . . . . 144