Accumet XL 20 User manual

i
XL 15 Meter: Table of Contents
Introduction ..................................................................1
Unpacking the Meter ...........................2
XL Series Meters Specifications .............................. 3-4
Getting Started
XL Series Meters Connectors .................................. 5-8
Start-up and Shut down procedures ............................9
pH and Ion probes ............................................... 11-12
Using the XL Series Meter
Touch Screen Operation...................................... 15-16
Screen Contrast Adjustment ......................................16
Using The Stylus........................................................17
Stylus Calibration .......................................................17
Setting Time And Date...............................................18
On-Screen Keyboard .................................................19
Expansion Cards .......................................................20
Connecting To The Internet .......................................21
Button Functions .................................................. 22-25
Channel Assignment............................................ 26-27
Display Setup.............................................................28
pH Setup
pH Setup Screen And Function Buttons ....................29
Access pH Setup .......................................................30
Set Sample ID#..........................................................31
Select Buffer Group ...................................................32
Select Buffer Recognition ..........................................33
Select Auto Read Mode ............................................33
Set Ph Stability Criteria..............................................34
Set Default Temperature............................................34
Set Isopotential Point ................................................35
Set Alarm Limits.........................................................35
Set Print Criteria.........................................................36
Set Data Storage Criteria...........................................37
Set Display Criteria Setup..........................................38
View Stored Data ................................................. 39-40
mV Setup
mv Setup Screen And Function Buttons....................41
Access mv Setup .......................................................42
Set Sample ID#..........................................................43
Set Alarm Limits.........................................................44
Set Print Criteria Setup .............................................45
Set Data Storage Criteria...........................................46
Set Display Criteria ....................................................47
View Stored Data ................................................. 48-49
68X374204 Rev 5 Jan’08
pH Operation
About pH Measurement........................................... 111
Standardizing
with Auto Buffer Recognition .................................. 112
Standardizing
with Manual Buffer Recognition.............................. 113
Temperature Standardization .................................. 114
pH Measurement with Auto Read
On And Off............................................................. 115
Graphing Function ..................................................116
mV Operation
About mv Measurement .......................................... 117
Absolute mv Measurement...................................... 118
Relative mv Standardization and Measurement...... 118
Graphing Function ..................................................119
Warranty ................................................................. 160
Compliance ............................................................ 160
Appendix
Setting the XL Series Meters User Profiles ......161-163
XL Series Meters
Factory Default Settings ...................................164-166
XL Series Meters
Print Function ...................................................167-168
Background and Color Adjustment...................169-170
Determining Isopotential Points
Experimentally ...................................................... 171
pH Theory.........................................................172-175
Replacement Parts ...........................................185-187

ii
XL 20 Meter: Table of Contents
Introduction ..................................................................1
Unpacking the Meter....................................................2
XL Series Meters Specifications .............................. 3-4
Getting Started
XL Series Meters Connectors .................................. 5-8
Start-up and Shut down procedures ............................9
pH and Ion Probes ............................................... 11-12
Conductivity Cells ......................................................13
Using the XL Series Meter
Touch Screen Operation...................................... 15-16
Screen Contrast Adjustment ......................................16
Using The Stylus........................................................17
Stylus Calibration .......................................................17
Setting Time And Date...............................................18
On-Screen Keyboard .................................................19
Expansion Cards .......................................................20
Connecting To The Internet .......................................21
Button Functions .................................................. 22-25
Channel Assignment............................................ 26-27
Display Setup.............................................................28
pH Setup
pH Setup Screen And Function Buttons ....................29
Access pH Setup .......................................................30
Set Sample ID#..........................................................31
Select Buffer Group ...................................................32
Select Buffer Recognition ..........................................33
Select Auto Read Mode ............................................33
Set Ph Stability Criteria..............................................34
Set Default Temperature............................................34
Set Isopotential Point ................................................35
Set Alarm Limits.........................................................35
Set Print Criteria.........................................................36
Set Data Storage Criteria...........................................37
Set Display Criteria Setup..........................................38
View Stored Data ................................................. 39-40
mV Setup
mv Setup Screen And Function Buttons....................41
Access mv Setup .......................................................42
Set Sample ID#..........................................................43
Set Alarm Limits.........................................................44
Set Print Criteria Setup .............................................45
Set Data Storage Criteria...........................................46
Set Display Criteria ....................................................47
View Stored Data ................................................. 48-49
Conductivity Setup
Conductivity Setup Screen
And Function Buttons...............................................81
Access Conductivity Setup ........................................82
Set Sample ID#..........................................................83
Conductivity Standards ..............................................84
Select Standard Recognition .....................................84
Select Stable Indicator...............................................85
Select Auto Read Mode ............................................85
Select Cell Constant .................................................85
Set Default Temperature............................................86
Set Reference Temperature ......................................86
Set Temperature Coefficient ......................................87
Set Alarm Limits.........................................................87
Set Print Criteria.........................................................88
Set Data Storage Criteria...........................................89
Set Display Criteria ...................................................90
View Stored Data ................................................. 91-92
Resistivity Setup
Resistivity Setup Screen and Function Buttons ........ 93
Access Resistivity Setup ........................................... 94
Set Sample ID# ......................................................... 95
Set Calibration Points ................................................ 95
Select Stable Indicator............................................... 95
Select Auto Read Mode ............................................ 95
Select Cell Constant ................................................. 96
Set Default Temperature ........................................... 96
Set Reference Temperature ...................................... 96
Set Temperature Coefficient...................................... 96
Set Alarm Limits ........................................................ 97
Set Print Criteria ........................................................ 97
Set Data Storage Criteria .......................................... 98
Set Display Criteria.................................................... 98
View Stored Data....................................................... 98
TDS (Total Dissolved Solids) Setup
TDS Setup Screen and Function Buttons.................. 99
Access TDS Setup .................................................. 100
Set Sample ID# ....................................................... 101
Set Calibration Points .............................................. 101
Select Stable Indicator............................................. 101
Select Auto Read Mode .......................................... 101
Select Cell Constant ............................................... 102
Set TDS Factor ....................................................... 102
Set Default Temperature ......................................... 102
Set Reference Temperature .................................... 102
Set Temperature Coefficient.................................... 103
Set Alarm Limits ...................................................... 103
Set Print Criteria ...................................................... 103
Set Data Storage Criteria ........................................ 104
Set Display Criteria.................................................. 104
View Stored Data..................................................... 104
Salinity Setup
Salinity Setup Screen and Function Buttons ........... 105
Access Salinity Setup .............................................. 106
Set Sample ID# ....................................................... 107
Set Calibration Points .............................................. 107
Select Stable Indicator............................................. 107
Select Auto Read Mode .......................................... 107
Select Cell Constant ............................................... 108
Set Default Temperature ......................................... 108
Set Reference Temperature .................................... 108
Set Temperature Coefficient.................................... 108
Set Alarm Limits ...................................................... 109
Set Print Criteria ...................................................... 109
Set Data Storage Criteria ........................................ 110
Set Display Criteria.................................................. 110
View Stored Data..................................................... 110

iii
XL 20 Meter: Table of Contents
pH Operation
About pH Measurement ...........................................110
Standardizing
with Auto Buffer Recognition...................................112
Standardizing
with Manual Buffer Recognition ..............................113
Temperature Standardization ..................................114
pH Measurement with Auto Read
On And Off.............................................................115
Graphing Function ..................................................116
mV Operation
About mv Measurement...........................................117
Absolute mv Measurement ......................................118
Relative mv Standardization and Measurement ......118
Graphing Function ..................................................119
Conductivity Operation
About Conductivity Measurement............................154
Standardizing .................................................. 155-156
With Auto Buffer Recognition...................................155
With Manual Buffer Recognition ..............................156
Temperature Standardization ..................................157
Conductivity Measurement ......................................158
Graphing Function ...................................................159
Warranty ................................................................. 160
Compliance ............................................................ 160
Appendix
Setting the XL Series Meters User Profiles ......161-163
XL Series Meters
Factory Default Settings ...................................164-166
XL Series Meters
Print Function ...................................................167-168
Background and Color Adjustment...................169-170
Determining Isopotential Points
Experimentally ...................................................... 171
pH Theory.........................................................172-175
Replatinization ......................................................... 181
Conductivity Theory..........................................182-184
Replacement Parts ...........................................185-187

iv
XL 25 Meter: Table of Contents
Introduction ..................................................................1
Unpacking the Meter....................................................2
XL Series Meters Specifications .............................. 3-4
Getting Started
XL Series Meters Connectors .................................. 5-8
Start-up and Shut down procedures ............................9
pH and Ion Probes ............................................... 11-12
Using the XL Series Meter
Touch Screen Operation...................................... 15-16
Screen Contrast Adjustment ......................................16
Using the Stylus .........................................................17
Stylus Calibration .......................................................17
Setting Time and Date ...............................................18
On-Screen Keyboard .................................................19
Expansion Cards .......................................................20
Connecting To the Internet ........................................21
Button Functions .................................................. 22-25
Channel Assignment............................................ 26-27
Display Setup.............................................................28
pH Setup
pH Setup Screen And Function Buttons ....................29
Access pH Setup .......................................................30
Set Sample ID#..........................................................31
Select Buffer Group ...................................................32
Select Buffer Recognition ..........................................33
Select Auto Read Mode ............................................33
Set Ph Stability Criteria..............................................34
Set Default Temperature............................................34
Set Isopotential Point ................................................35
Set Alarm Limits.........................................................35
Set Print Criteria.........................................................36
Set Data Storage Criteria...........................................37
Set Display Criteria Setup..........................................38
View Stored Data ................................................. 39-40
mV Setup
mv Setup Screen And Function Buttons....................41
Access mv Setup .......................................................42
Set Sample ID#..........................................................43
Set Alarm Limits.........................................................44
Set Print Criteria Setup .............................................45
Set Data Storage Criteria...........................................46
Set Display Criteria ....................................................47
View Stored Data ................................................. 48-49
Ion Setup
Ion Setup Screen and Function Buttons ....................50
Access Ion Setup.......................................................51
Set Sample ID#..........................................................52
Ion Method .................................................................53
Select Electrode Type................................................54
Select Measurement Units.........................................54
Select Auto Read Mode .............................................55
Select Ion Stability Criteria.........................................55
Set Default Temperature............................................56
Set Temperature Compensation................................57
Set Isopotential Point.................................................57
Set Alarm Limits.........................................................57
Set Print Criteria ........................................................58
Set Data Storage Criteria...........................................59
Set Display Criteria ....................................................60
View Stored Data ................................................. 61-62
pH Operation
About pH Measurement........................................... 110
Standardizing
with Auto Buffer Recognition .................................. 112
Standardizing
with Manual Buffer Recognition.............................. 113
Temperature Standardization .................................. 114
pH Measurement with Auto Read
On And Off............................................................. 115
Graphing Function ..................................................116
mV Operation
About mv Measurement .......................................... 117
Absolute mv Measurement...................................... 118
Relative mv Standardization and Measurement...... 118
Graphing Function ..................................................119
Ion Operation
About Ion MEASUREMENT .................................... 120
DIRECT READING METHODS........................121-124
Standardization: Direct Reading
with Standards....................................................... 121
Measurement: Direct Reading
with Standards....................................................... 122
Standardization: Direct Reading
with Blank Offset.................................................... 123
Measurement: Direct Reading
with Blank Offset.................................................... 124
INCREMENTAL METHODS.............................125-133
Standardization: All Incremental Methods............... 125
Measurement: Known Addition Method ...........126-127
Measurement: Known Subtraction Method ......128-129
Measurement: Analate Addition Method ..........130-131
Measurement: Analate Subtraction Method .....132-133
Graphing Function ..................................................134
Warranty ................................................................. 160
Compliance ............................................................ 160
Appendix
Setting the XL Series Meters User Profiles ......161-163
XL Series Meters
Factory Default Settings ...................................164-166
XL Series Meters
Print Function ...................................................167-168
Background and Color Adjustment...................169-170
Determining Isopotential Points
Experimentally ...................................................... 171
pH Theory.........................................................172-175
ISE Theory........................................................176-179
Replacement Parts ...........................................185-187

v
XL 30 Meter: Table of Contents
Introduction ..................................................................1
Unpacking the Meter....................................................2
XL Series Meters Specifications .............................. 3-4
Getting Started
XL Series Meters Connectors .................................. 5-8
Start-up and Shut down procedures ............................9
Conductivity Cells ......................................................13
Using the XL Series Meter
Touch Screen Operation...................................... 15-16
Screen Contrast Adjustment ......................................16
Using the Stylus .........................................................17
Stylus Calibration .......................................................17
Setting Time and Date ...............................................18
On-Screen Keyboard .................................................19
Expansion Cards .......................................................20
Connecting To the Internet ........................................21
Button Functions .................................................. 22-25
Channel Assignment............................................ 26-27
Display Setup.............................................................28
Conductivity Setup
Conductivity Setup Screen
And Function Buttons...............................................81
Access Conductivity Setup ........................................82
Set Sample ID#..........................................................83
Conductivity Standards ..............................................84
Select Standard Recognition .....................................84
Select Stable Indicator...............................................85
Select Auto Read Mode ............................................85
Select Cell Constant .................................................85
Set Default Temperature............................................86
Set Reference Temperature ......................................86
Set Temperature Coefficient ......................................87
Set Alarm Limits.........................................................87
Set Print Criteria.........................................................88
Set Data Storage Criteria...........................................89
Set Display Criteria ...................................................90
View Stored Data ................................................. 91-92
Resistivity Setup
Resistivity Setup Screen and Function Buttons.........93
Access Resistivity Setup............................................94
Set Sample ID#..........................................................95
Set Calibration Points ................................................95
Select Stable Indicator...............................................95
Select Auto Read Mode ............................................95
Select Cell Constant .................................................96
Set Default Temperature............................................96
Set Reference Temperature ......................................96
Set Temperature Coefficient ......................................96
Set Alarm Limits.........................................................97
Set Print Criteria.........................................................97
Set Data Storage Criteria...........................................98
Set Display Criteria ....................................................98
View Stored Data .......................................................98
TDS (Total Dissolved Solids) Setup
TDS Setup Screen and Function Buttons.................. 99
Access TDS Setup .................................................. 100
Set SampleID# ........................................................ 101
Set Calibration Points .............................................. 101
Select Stable Indicator............................................. 101
Select Auto Read Mode .......................................... 101
Select Cell Constant ............................................... 102
Set TDS Factor ....................................................... 102
Set Default Temperature ......................................... 102
Set Reference Temperature .................................... 102
Set Temperature Coefficient.................................... 103
Set Alarm Limits ...................................................... 103
Set Print Criteria ...................................................... 103
Set Data Storage Criteria ........................................ 104
Set Display Criteria.................................................. 104
View Stored Data..................................................... 104
Salinity Setup
Salinity Setup Screen and Function Buttons ........... 105
Access Salinity Setup .............................................. 106
Set Sample ID# ....................................................... 107
Set Calibration Points .............................................. 107
Select Stable Indicator............................................. 107
Select Auto Read Mode .......................................... 107
Select Cell Constant ............................................... 108
Set Default Temperature ......................................... 108
Set Reference Temperature .................................... 108
Set Temperature Coefficient.................................... 108
Set Alarm Limits ...................................................... 109
Set Print Criteria ...................................................... 109
Set Data Storage Criteria ........................................ 110
Set Display Criteria.................................................. 110
View Stored Data..................................................... 110
Conductivity Operation
About Conductivity Measurement............................ 154
Standardizing ...................................................155-156
With Auto Buffer Recognition .................................. 155
With Manual Buffer Recognition .............................. 156
Temperature Standardization .................................. 157
Conductivity Measurement ...................................... 158
Graphing Function ................................................... 159
Warranty ................................................................. 160
Compliance ............................................................ 160
Appendix
Setting the XL Series Meters User Profiles ......161-163
XL Series Meters
Factory Default Settings ...................................164-166
XL Series Meters
Print Function ...................................................167-168
Background and Color Adjustment...................169-170
Replatinization ......................................................... 181
Conductivity Theory..........................................182-184
Replacement Parts ...........................................185-187

vi
XL 40 Meter: Table of Contents
Introduction ..................................................................1
Unpacking the Meter....................................................2
XL Series Meters Specifications .............................. 3-4
Getting Started
XL Series Meters Connectors .................................. 5-8
Start-up and Shut down procedures ..........................10
Dissolved Oxygen Probe ...........................................14
Using the XL Series Meter
Touch Screen Operation...................................... 15-16
Screen Contrast Adjustment ......................................16
Using the Stylus .........................................................17
Stylus Calibration .......................................................17
Setting Time and Date ...............................................18
On-Screen Keyboard .................................................19
Expansion Cards .......................................................20
Connecting To the Internet ........................................21
Button Functions .................................................. 22-25
Channel Assignment............................................ 26-27
Display Setup.............................................................28
DO Setup
DO Setup Screen and Function Buttons....................63
Access DO Setup.......................................................64
Set Sample ID#..........................................................65
Select Measurement Units.........................................66
Select Calibration Mode.............................................66
Select Stable Indicator ..............................................67
Select Auto Read Mode .............................................67
Select Temperature Units ..........................................68
Set Barometer............................................................68
Set Salinity.................................................................69
Set Alarm Limits.........................................................69
Set Print Criteria.........................................................70
Set Data Storage Criteria...........................................71
Set Display Criteria Setup..........................................72
View Stored Data ................................................. 73-74
BOD Setup
BOD Setup Screen and Function Buttons .................75
BOD Configuration.....................................................76
OUR Setup
OUR Setup Screen and Function Buttons .................75
OUR Configuration.....................................................78
SOUR Setup
SOUR Setup Screen And Function Buttons ..............79
SOUR Configuration ..................................................80
DO Operation
STANDARDIZING ...........................................135-141
About DO Standardizing...................................135-136
Automatic at One Point—% Saturation ................... 137
Automatic at Two Points—% Saturation ................. 138
Automatic at One Point—mg/L ................................ 139
Manual at One Point—% saturation and mg/L ........ 140
Temperature Standardization .................................. 141
MEASUREMENT..............................................142-152
About DO Measurement.......................................... 142
Auto Read ON and Auto Read OFF ........................ 142
About BOD Measurement .......................................143
BOD Calculation Parameters .................................. 144
Measurement of BOD of Sample............................. 145
Initial DO measurement for Sample
BOD calculation....................................................... 146
Measurement of BOD of Seed ................................ 147
Initial DO measurement for Seed
BOD Calculation ...................................................... 147
Final DO Measurement for Sample
BOD Calculation ...................................................... 148
Final DO Measurement for Seed BOD Calculation . 149
Editing Select View Screen ..................................... 150
OUR Measurement.................................................. 151
SOUR Measurement ............................................... 152
DO Graphing Function............................................. 153
Warranty ................................................................. 160
Compliance ............................................................ 160
Appendix
Setting the XL Series Meters User Profiles ......161-163
XL Series Meters
Factory Default Settings ...................................164-166
XL Series Meters
Print Function ...................................................167-168
Background and Color Adjustment...................169-170
DO Theory ............................................................... 180
Replacement Parts ...........................................185-187

vii
XL 50 Meter: Table of Contents
Introduction ..................................................................1
Unpacking the Meter....................................................2
XL Series Meters Specifications .............................. 3-4
Getting Started
XL Series Meters Connectors .................................. 5-8
Start-up and Shut down procedures ............................9
pH and Ion Probes ............................................... 11-12
Conductivity Cells ......................................................13
Using the XL Series Meter
Touch Screen Operation...................................... 15-16
Screen Contrast Adjustment ......................................16
Using the Stylus .........................................................17
Stylus Calibration .......................................................17
Setting Time and Date ...............................................18
On-Screen Keyboard .................................................19
Expansion Cards .......................................................20
Connecting To the Internet ........................................21
Button Functions .................................................. 22-25
Channel Assignment............................................ 25-27
Display Setup.............................................................28
pH Setup
pH Setup Screen And Function Buttons ....................29
Access pH Setup .......................................................30
Set Sample ID#..........................................................31
Select Buffer Group ...................................................32
Select Buffer Recognition ..........................................33
Select Auto Read Mode ............................................33
Set Ph Stability Criteria..............................................34
Set Default Temperature............................................34
Set Isopotential Point ................................................35
Set Alarm Limits.........................................................35
Set Print Criteria.........................................................36
Set Data Storage Criteria...........................................37
Set Display Criteria Setup..........................................38
View Stored Data ................................................. 39-40
mV Setup
mv Setup Screen And Function Buttons....................41
Access mv Setup .......................................................42
Set Sample ID#..........................................................43
Set Alarm Limits.........................................................44
Set Print Criteria Setup .............................................45
Set Data Storage Criteria...........................................46
Set Display Criteria ....................................................47
View Stored Data ................................................. 48-49
Ion Setup
Ion Setup Screen and Function Buttons ....................50
Access Ion Setup.......................................................51
Set Sample ID#..........................................................52
Ion Method .................................................................53
Select Electrode Type................................................54
Select Measurement Units.........................................54
Select Auto Read Mode .............................................55
Select Ion Stability Criteria.........................................55
Set Default Temperature............................................56
Set Temperature Compensation................................57
Set Isopotential Point.................................................57
Set Alarm Limits.........................................................57
Set Print Criteria ........................................................58
Set Data Storage Criteria...........................................59
Set Display Criteria ....................................................60
View Stored Data ................................................. 61-62
Conductivity Setup
Conductivity Setup Screen
And Function Buttons .............................................. 81
Access Conductivity Setup........................................ 82
Set Sample ID# ......................................................... 83
Conductivity Standards.............................................. 84
Select Standard Recognition ..................................... 84
Select Stable Indicator............................................... 85
Select Auto Read Mode ............................................ 85
Select Cell Constant ................................................. 85
Set Default Temperature ........................................... 86
Set Reference Temperature ...................................... 86
Set Temperature Coefficient...................................... 87
Set Alarm Limits ........................................................ 87
Set Print Criteria ........................................................ 88
Set Data Storage Criteria .......................................... 89
Set Display Criteria ................................................... 90
View Stored Data..................................................91-92
Resistivity Setup
Resistivity Setup Screen and Function Buttons ........ 93
Access Resistivity Setup ........................................... 94
Set Sample ID# ......................................................... 95
Set Calibration Points ................................................ 95
Select Stable Indicator............................................... 95
Select Auto Read Mode ............................................ 95
Select Cell Constant ................................................. 96
Set Default Temperature ........................................... 96
Set Reference Temperature ...................................... 96
Set Temperature Coefficient...................................... 96
Set Alarm Limits ........................................................ 97
Set Print Criteria ........................................................ 97
Set Data Storage Criteria .......................................... 98
Set Display Criteria.................................................... 98
View Stored Data....................................................... 98
TDS (Total Dissolved Solids) Setup
TDS Setup Screen and Function Buttons.................. 99
Access TDS Setup .................................................. 100
Set SampleID# ........................................................ 101
Set Calibration Points .............................................. 101
Select Stable Indicator............................................. 101
Select Auto Read Mode .......................................... 101
Select Cell Constant ............................................... 102
Set TDS Factor ....................................................... 102
Set Default Temperature ......................................... 102
Set Reference Temperature .................................... 102
Set Temperature Coefficient.................................... 103
Set Alarm Limits ...................................................... 103
Set Print Criteria ...................................................... 103
Set Data Storage Criteria ........................................ 104
Set Display Criteria.................................................. 104
View Stored Data..................................................... 104
Salinity Setup
Salinity Setup Screen and Function Buttons ........... 105
Access Salinity Setup .............................................. 106
Set Sample ID# ....................................................... 107
Set Calibration Points .............................................. 107
Select Stable Indicator............................................. 107
Select Auto Read Mode .......................................... 107
Select Cell Constant ............................................... 108
Set Default Temperature ......................................... 108
Set Reference Temperature .................................... 108
Set Temperature Coefficient.................................... 108
Set Alarm Limits ...................................................... 109
Set Print Criteria ...................................................... 109
Set Data Storage Criteria ........................................ 110
Set Display Criteria.................................................. 110
View Stored Data..................................................... 110

viii
XL 50 Meter: Table of Contents
pH Operation
About pH Measurement ...........................................110
Standardizing
with Auto Buffer Recognition...................................112
Standardizing
with Manual Buffer Recognition ..............................113
Temperature Standardization ..................................114
pH Measurement with Auto Read
On And Off.............................................................115
Graphing Function ..................................................116
mV Operation
About mv Measurement...........................................117
Absolute mv Measurement ......................................118
Relative mv Standardization and Measurement ......118
Graphing Function ..................................................119
Ion Operation
About Ion MEASUREMENT.....................................120
DIRECT READING METHODS ....................... 121-124
Standardization: Direct Reading
with Standards .......................................................121
Measurement: Direct Reading
with Standards .......................................................122
Standardization: Direct Reading
with Blank Offset ....................................................123
Measurement: Direct Reading
with Blank Offset ....................................................124
INCREMENTAL METHODS ............................ 125-133
Standardization: All Incremental Methods ...............125
Measurement: Known Addition Method ........... 126-127
Measurement: Known Subtraction Method...... 128-129
Measurement: Analate Addition Method.......... 130-131
Measurement: Analate Subtraction Method .... 132-133
Graphing Function ..................................................134
Conductivity Operation
About Conductivity Measurement............................154
Standardizing .................................................. 155-156
With Auto Buffer Recognition...................................155
With Manual Buffer Recognition ..............................156
Temperature Standardization ..................................157
Conductivity Measurement ......................................158
Graphing Function ...................................................159
Warranty ................................................................. 160
Compliance ............................................................ 160
Appendix
Setting the XL Series Meters User Profiles ......161-163
XL Series Meters
Factory Default Settings ...................................164-166
XL Series Meters
Print Function ...................................................167-168
Background and color adjustment ....................169-170
Determining Isopotential Points
Experimentally ...................................................... 171
pH Theory.........................................................172-175
ISE Theory........................................................176-179
Replatinization ......................................................... 181
Conductivity Theory..........................................182-184
Replacement Parts ...........................................185-187

ix
XL 60 Meter: Table of Contents
Introduction ..................................................................1
Unpacking the Meter....................................................2
XL Series Meters Specifications .............................. 3-4
Getting Started
XL Series Meters Connectors .................................. 5-8
Start-up and Shut down procedures ............................9
pH and Ion Probes ............................................... 11-12
Conductivity Cells ......................................................13
Dissolved Oxygen Probe ...........................................14
Using the XL Series Meter
Touch Screen Operation...................................... 15-16
Screen Contrast Adjustment ......................................16
Using the Stylus .........................................................17
Stylus Calibration .......................................................17
Setting Time and Date ...............................................18
On-Screen Keyboard .................................................19
Expansion Cards .......................................................20
Connecting To the Internet ........................................21
Button Functions .................................................. 22-25
Channel Assignment............................................ 26-27
Display Setup.............................................................28
pH Setup
pH Setup Screen And Function Buttons ....................29
Access pH Setup .......................................................30
Set Sample ID#..........................................................31
Select Buffer Group ...................................................32
Select Buffer Recognition ..........................................33
Select Auto Read Mode ............................................33
Set Ph Stability Criteria..............................................34
Set Default Temperature............................................34
Set Isopotential Point ................................................35
Set Alarm Limits.........................................................35
Set Print Criteria.........................................................36
Set Data Storage Criteria...........................................37
Set Display Criteria Setup..........................................38
View Stored Data ................................................. 39-40
mV Setup
mv Setup Screen And Function Buttons....................41
Access mv Setup .......................................................42
Set Sample ID#..........................................................43
Set Alarm Limits.........................................................44
Set Print Criteria Setup .............................................45
Set Data Storage Criteria...........................................46
Set Display Criteria ....................................................47
View Stored Data ................................................. 48-49
Ion Setup
Ion Setup Screen and Function Buttons ....................50
Access Ion Setup.......................................................51
Set Sample ID#..........................................................52
Ion Method .................................................................53
Select Electrode Type................................................54
Select Measurement Units.........................................54
Select Auto Read Mode .............................................55
Select Ion Stability Criteria.........................................55
Set Default Temperature............................................56
Set Temperature Compensation................................57
Set Isopotential Point.................................................57
Set Alarm Limits.........................................................57
Set Print Criteria ........................................................58
Set Data Storage Criteria...........................................59
Set Display Criteria ....................................................60
View Stored Data ................................................. 61-62
DO Setup
DO Setup Screen and Function Buttons ................... 63
Access DO Setup ...................................................... 64
Set Sample ID# ......................................................... 65
Select Measurement Units ........................................ 66
Select Calibration Mode ............................................ 66
Select Stable Indicator .............................................. 67
Select Auto Read Mode............................................. 67
Select Temperature Units.......................................... 68
Set Barometer ........................................................... 68
Set Salinity................................................................. 69
Set Alarm Limits ........................................................ 69
Set Print Criteria ........................................................ 70
Set Data Storage Criteria .......................................... 71
Set Display Criteria Setup ......................................... 72
View Stored Data..................................................73-74
BOD Setup
BOD Setup Screen and Function Buttons ................. 75
BOD Configuration ....................................................76
OUR Setup
OUR Setup Screen and Function Buttons................. 77
OUR Configuration .................................................... 78
SOUR Setup
SOUR Setup Screen And Function Buttons .............. 79
SOUR Configuration.................................................. 80
Conductivity Setup
Conductivity Setup Screen
And Function Buttons .............................................. 81
Access Conductivity Setup........................................ 82
Set Sample ID# ......................................................... 83
Conductivity Standards.............................................. 84
Select Standard Recognition ..................................... 84
Select Stable Indicator............................................... 85
Select Auto Read Mode ............................................ 85
Select Cell Constant ................................................. 85
Set Default Temperature ........................................... 86
Set Reference Temperature ...................................... 86
Set Temperature Coefficient...................................... 87
Set Alarm Limits ........................................................ 87
Set Print Criteria ........................................................ 88
Set Data Storage Criteria .......................................... 89
Set Display Criteria ................................................... 90
View Stored Data..................................................91-92
Resistivity Setup
Resistivity Setup Screen and Function Buttons ........ 93
Access Resistivity Setup ........................................... 94
Set Sample ID# ......................................................... 95
Set Calibration Points ................................................ 95
Select Stable Indicator............................................... 95
Select Auto Read Mode ............................................ 95
Select Cell Constant ................................................. 96
Set Default Temperature ........................................... 96
Set Reference Temperature ...................................... 96
Set Temperature Coefficient...................................... 96
Set Alarm Limits ........................................................ 97
Set Print Criteria ........................................................ 97
Set Data Storage Criteria .......................................... 98
Set Display Criteria.................................................... 98
View Stored Data....................................................... 98

x
XL 60 Meter: Table of Contents
TDS (Total Dissolved Solids) Setup
TDS Setup Screen and Function Buttons ..................99
Access TDS Setup...................................................100
Set SampleID#.........................................................101
Set Calibration Points ..............................................101
Select Stable Indicator.............................................101
Select Auto Read Mode ..........................................101
Select Cell Constant ...............................................102
Set TDS Factor .......................................................102
Set Default Temperature..........................................102
Set Reference Temperature ....................................102
Set Temperature Coefficient ....................................103
Set Alarm Limits.......................................................103
Set Print Criteria.......................................................103
Set Data Storage Criteria.........................................104
Set Display Criteria ..................................................104
View Stored Data .....................................................104
Salinity Setup
Salinity Setup Screen and Function Buttons ...........105
Access Salinity Setup ..............................................106
Set Sample ID#........................................................107
Set Calibration Points ..............................................107
Select Stable Indicator.............................................107
Select Auto Read Mode ..........................................107
Select Cell Constant ...............................................108
Set Default Temperature..........................................108
Set Reference Temperature ....................................108
Set Temperature Coefficient ....................................108
Set Alarm Limits.......................................................109
Set Print Criteria.......................................................109
Set Data Storage Criteria.........................................110
Set Display Criteria ..................................................110
View Stored Data .....................................................110
pH Operation
About pH Measurement ...........................................110
Standardizing
with Auto Buffer Recognition...................................112
Standardizing
with Manual Buffer Recognition ..............................113
Temperature Standardization ..................................114
pH Measurement with Auto Read
On And Off.............................................................115
Graphing Function ..................................................116
mV Operation
About mv Measurement...........................................117
Absolute mv Measurement ......................................118
Relative mv Standardization and Measurement ......118
Graphing Function ..................................................119
Ion Operation
About Ion MEASUREMENT.....................................120
DIRECT READING METHODS ....................... 121-124
Standardization: Direct Reading
with Standards .......................................................121
Measurement: Direct Reading
with Standards .......................................................122
Standardization: Direct Reading
with Blank Offset ....................................................123
Measurement: Direct Reading
with Blank Offset ....................................................124
INCREMENTAL METHODS ............................ 125-133
Standardization: All Incremental Methods ...............125
Measurement: Known Addition Method ........... 126-127
Measurement: Known Subtraction Method...... 128-129
Measurement: Analate Addition Method.......... 130-131
Measurement: Analate Subtraction Method .... 132-133
Graphing Function ..................................................134
DO Operation
STANDARDIZING ...........................................135-141
About DO Standardizing...................................135-136
Automatic at One Point—% Saturation ................... 137
Automatic at Two Points—% Saturation ................. 138
Automatic at One Point—mg/L ................................ 139
Manual at One Point—% saturation and mg/L ........ 140
Temperature Standardization .................................. 141
MEASUREMENT..............................................142-152
About DO Measurement.......................................... 142
Auto Read ON and Auto Read OFF ........................ 142
About BOD Measurement .......................................143
BOD Calculation Parameters .................................. 144
Measurement of BOD of Sample............................. 145
Initial DO measurement for Sample
BOD calculation....................................................... 146
Measurement of BOD of Seed ................................ 147
Initial DO measurement for Seed
BOD Calculation ...................................................... 147
Final DO Measurement for Sample
BOD Calculation ...................................................... 148
Final DO Measurement for Seed BOD Calculation . 149
Editing Select View Screen ..................................... 150
OUR Measurement.................................................. 151
SOUR Measurement ............................................... 152
DO Graphing Function............................................. 153
Conductivity Operation
About Conductivity Measurement............................ 154
Standardizing ...................................................155-156
With Auto Buffer Recognition .................................. 155
With Manual Buffer Recognition .............................. 156
Temperature Standardization .................................. 157
Conductivity Measurement ...................................... 158
Graphing Function ................................................... 159
Warranty ................................................................. 160
Compliance ............................................................ 160
Appendix
Setting the XL Series Meters User Profiles ......161-163
XL Series Meters
Factory Default Settings ...................................164-166
XL Series Meters
Print Function ...................................................167-168
Background and color adjustment ....................169-170
Determining Isopotential Points
Experimentally ...................................................... 171
pH Theory.........................................................172-175
ISE Theory........................................................176-179
DO Theory ..............................................................180
Replatinization ......................................................... 181
Conductivity Theory..........................................182-184
Replacement Parts ...........................................185-187

1
Introduction
XL15, 20, 25, 30, 40, 50 and 60 meters
Thank you for selecting a Fisher Scientific accumet meter. You have one of these XL series
models:
●XL15 – pH/mV/Temp meter ●XL40 - DO/BOD/OUR/SOUR meter
●XL20 - pH/mV/Temp/Conductivity meter ●XL50 - pH/mV/Temp/Ion/Conductivity meter
●XL25 - pH/mV/Temp/Ion meter ●XL60 - pH/mV/Temp/DO/Ion/Conductivity meter
●XL30 – Conductivity/ Resistivity/TDS/Salinity/Temp meter
This manual describes the operation of the accumet XL series meters. For the model of your
purchase, simply use the model’s Table of Content to guide you to your meter’s operating
instructions.
The state-of-the art meter that you have purchased runs on a Windows CE platform and has a
similar framework of a pocket PC (or "Palm Pilot").
It is easy to operate and will guide you through the various functions by displaying easy to
understand prompts. This operating manual should answer any questions that might arise in
operating your meter; however, do not hesitate to call our accumet Technical Support Hotline at
1-888-358-4706, if you need any assistance.
This meter is designed to provide all the information necessary to guide you through the
measurement process with a series of prompts on the screen. The XL series meters provide
microprocessor precision in a compact bench top design that is easy to use, letting you:
●Measure pH or pH (FET); absolute mV or relative mV (Applicable only for XL15, XL20, XL25, XL50, and XL60)
●Measure ion concentration (Applicable only XL25, XL50, and XL60)
●Measure conductivity, resistivity, Total Dissolved Solids
(TDS) and salinity (Applicable only for XL20, XL30, XL50, and XL60)
●Measure DO, BOD, OUR and SOUR (Applicable only for, XL40 and XL60)
●Select one of three sets of standard pH buffer groups (Applicable only for XL15, XL20, XL25, XL50, and XL60)
●Standardize with up to 5 pH standard or custom buffers (Applicable only for XL15, XL20, XL25, XL50, and XL60)
●Standardize with up to 4 conductivity standards (Applicable only for XL20, XL30, XL50, and XL60)
●Implement automatic pH buffer recognition (Applicable only for XL15, XL20, XL25, XL50, and XL60)
●Implement automatic conductivity standard recognition (Applicable only for XL20, XL30, XL50, and XL60)
●Select one of six ion standardization methods (Applicable only for XL25, XL50, and XL60)
●Standardize Dissolved Oxygen with up to two standards (Applicable only for XL40, and XL60)
●Customize your display and operating parameters (Applicable for XL15, XL20, XL25, XL30, XL40, XL50, and
XL60)
●Assign operator and sample identification numbers (Applicable for XL15, XL20, XL25, XL30, XL40, XL50, and
XL60)
●Specify ion selective electrode type (Applicable only for XL25, XL50, and XL60)
●Store 1000 data points per user in the meter’s memory
or transfer data to a computer or printer.
(Applicable for XL15, XL20, XL25, XL30, XL40, XL50, and
XL60)
●Access extensive help with just a touch of a button (Applicable for XL15, XL20, XL25, XL30, XL40, XL50, and
XL60)
It all adds up to rapid, completely automatic, intuitive operation.

2
Introduction
XL15, 20, 25, 30, 40, 50 and 60 meters
Useful tips will appear
in this box throughout
this manual.
Unpacking the Meter
The following is a listing of what you should have received with your new accumet XLseries
bench top meter.
Meter with kit includes: XL15 XL20 XL25 XL30 XL40 XL50 XL60
meter ●●●●●●●
power supply ●●●●●●●
electrode arm support bracket ●●●●●●
electrode arm ●●●●●●
manual and literature ●●●●●●●
pH electrode (13-620-130) ●●●
●●
Conductivity 13-620-100, 2 cell, 1.0 cell constant
●●
ATC probe (13-620-19) ●●●
●●
BOD probe (13-620-SSP; with XL60D kit only)
●●
Meter only includes: XL15 XL20 XL25 XL30 XL40 XL50 XL60
meter ●●●●●●●
power supply ●●●●●●●
electrode arm support bracket ●●●●●●
electrode arm ●●●●●●
manual and literature ●●●●●●●
If any of these items are missing, please contact the accumet
Technical Support Hotline at 1-888-358-4706. Accessory Conductivity
Probes and Ion Selective Electrodes are available and can be
ordered by calling Fisher Customer Service at 800/766-7000.
Accessory pH, ISE, and Conductivity probes are available and can be
ordered by calling Fisher Customer Service at 800/766-7000
.

3
XL Series Meters Specifications
XL15, 20, 25, 30, 40, 50 and 60 meters
640x480 digit LCD
screen size 4 1/2” x 6”
menu options extensive
help screens extensive
configurable display yes
keypad controls context specific touchscreen
(Applicable for XL15, XL20, XL25, XL30, XL40, XL50, and XL60)
inputs/outputs BNC, ATC, DIN (FET)- ( XL15, XL20, XL25, XL50, and XL60)
DIN (Conductivity) – (XL20, XL30, XL50, and XL60)
DIN (DO) – XL40, and XL60
RS232, USB-B, USB-A, RJ45 – (Applicable for all models)
electrical requirements 115 V/60 Hz, 230 V/50 Hz
output from PSU 9VDC, 3.3A center negative
line voltage tolerance ± 10%
input impedance >10
12 ohms
meter size 6.75"x9.25"x3.5"
meter weight 2.8 lb.
1000 data pts
internal diagnostics yes
programmable data storage store on stable, time, manual
programmable data output timed or logged data
print interval 3 to 86400 sec
programmable alarm yes
(Applicable for XL15, XL20, XL25, XL30, XL40, XL50, and XL60)
range -2.000 to 20.000
resolution 0.1/0.01/0.001
relative accuracy ± 0.1/0.01/0.002 + 1 Lsd
automatic buffer recognition yes
manual buffer recognition yes
calibration points 5
auto lock yes
FET yes
(Applicable only for XL15, XL20, XL25, XL50, and XL60)
range ± 2000.0
resolution 0.1
accuracy ± 0.2
(
Applicable only for XL15, XL20, XL25, XL50, and XL60)
range 1x10–6 to 9.99x1010
resolution 2 / 3 or 4 digits
relative accuracy ±0.17n%
calibration points 5
incremental methods KA, KS, AA, AS
(Applicable only for XL25, XL50 and XL60)
continued on next page
Display
Memory
pH Mode
mV Mode
Ion Mode
General

4
XL Series Meters Specifications
XL15, 20, 25, 30, 40, 50 and 60 meters
cell constants range 0.1, 1.0, 10
conductivity 0 to 500 mS/cm over 4 ranges
0 to 200.0 µS, 200.0 µS to 2.000 mS,
2.000 to 20.00 mS, 20.00 to 500.0 mS
resistivity 3 ohm-cm to 100 megohm-cm over 4 ranges
0 to 20.00 KOhms, 20.00 to 200.0 KOhms,
200.0 KOhms to 2.000 MOhms,
2.000 to 100.0 Mohms
Total Dissolved Solids (TDS) 0.0 to 500.0 ppt over 4 ranges
(depending on the TDS factor)
0 to 200.0 x TDS factor ppm,
200.0 x TDS factor to 2000 x TDS factor ppm,
2.000 x TDS factor to 20.00 x TDS factor ppt,
20.00 x TDS factor to 200.0 x TDS factor ppt
salinity 0 to 90 ppt over 4 ranges
0 to 0.094 ppt, 0.094 to 1.000 ppt,
1.0 to 11.50 ppt, 11.50 to 90.00 ppt
accuracy 0.5% of full scale + 1 digit
(Applicable only for XL20, XL30, XL50, and XL60)
range 0 to 60 mg/L (0 to 1272 mbar)
0 to 600 % saturation
resolution 0.01 mg/L (0.1 mbar)
0.1 % saturation
accuracy 0.1 + 1 least significant digit
(Applicable only for XL40 and XL60)
range -5.0 to +105.0 °C (for meter only)
(Applicable only for XL15, XL20, XL25, XL30, XL50, and XL60)
range -5.0 to +46.0 °C (Applicable only for XL40 and DO mode in XL60)
resolution 0.1 °C
accuracy ± 0.2 °C
range 450 to 825 mmHg
resolution 1 mm Hg
accuracy ±1 mm Hg + 1 least significant digit
(Applicable only for XL40 and XL60)
range 0 to 45 ppt
(Applicable only for XL40 and XL60)
operating temperature 5-45 °C
operation humidity 5-80 % noncondensing
maximum operating altitude 2000m
installation category II
Pollution category degree 2
(Applicable for XL15, XL20, XL25, XL30, XL40, XL50, and XL60)
Temperature Mode
Operating Conditions
Conductivity Mode
Dissolved Oxygen Mode
Barometric Pressure
Salinity Correction

5
Getting Started: XL Series Meters Connectors
XL15 and 20 meters
1. Review the layout and arrangement of the rear connector panel.
XL15 rear connector panel
XL20 rear connector panel

6
Getting Started: XL Series Meters Connectors
XL25 and 30 meters
XL30 rear connector panel
XL25 rear connector panel

7
Getting Started: XL Series Meters Connectors
XL40 and 50 meters
XL40 rear connector panel
XL50 rear connector panel

8
Getting Started: XL Series Meters Connectors
XL60 meter
2. Connect the electrode arm to the base.
Electrode base can be attached to either
side of meter. Purchase additional arm with base
(13-637-671) to use both sides.
XL60 rear connector panel

9
Getting Started: XL Series Meters Connectors
XL60 meter
Important: It is recommended to follow the following start-up and shut down procedures to avoid
crashes, lock-ups or data loss. Start and shut down procedures are also illustrated on the slip
attached with the adaptor cable.
Start-up procedure:
1. Connect the 9V DC power jack of the adaptor to the rear connector panel of the XL
meter.
2. Connect 2 pin power plug into the power outlet or terminal strip.
3. Switch power on (wall socket or terminal strip).
4. Press the black button on the base of the meter for 5 seconds.
5. Release the button to power on the meter.
Shut down procedure:
1. Close all applications and log off.
2. From the HOME screen tap the bottom of the screen to bring up the task bar.
3. Tap Start>Shut down. This launches Shut down window.
4. Tap the Yes button on Shut down window to power off the meter.
Caution: Do not remove power from the XL meter until the meter shuts down.
Getting Started: Startup and Shut down procedures
XL15, 20, 25, 30, 50 and 60 meters