Page 2
Contents
1.
Introduction..................................................................................... 4
1.1 WP-90 Display and Controls............................................................................. 4
1.2 Unpacking Information ..................................................................................... 6
1.3 Specifications.................................................................................................... 7
2.
WP-90 Menu Structure ................................................................... 9
3.
Specific Ion Mode ......................................................................... 11
3.1 Selecting ppM or ppK Mode ........................................................................... 11
3.2 Selecting Exponential Mode (e.g. Molar) ........................................................ 13
4.
Specific Ion Calibration ................................................................ 15
4.1 Calibration Procedure ..................................................................................... 15
4.2 Calibration Notes ............................................................................................ 17
4.3 Calibration Messages ...................................................................................... 17
5.
pH Calibration ............................................................................... 18
5.1 Calibration Procedure ..................................................................................... 18
5.2 Calibration Notes ............................................................................................ 19
5.3 Calibration Messages ...................................................................................... 19
6.
mV Calibration .............................................................................. 20
7.
Relative mV Calibration ................................................................ 20
7.1 Notes .............................................................................................................. 20
8.
Temperature Calibration .............................................................. 21
8.1 Calibration Procedure ..................................................................................... 21
8.2 Calibration Notes ............................................................................................ 22
8.3 Calibration Messages ...................................................................................... 22
8.4 Manual Temperature Setting........................................................................... 22
9.
Good Laboratory Practices (GLP) ............................................... 23
9.1 To recall GLP information on the display........................................................ 23
9.2 Failed Calibration ........................................................................................... 25
9.3 Printing GLP Information to the RS232 Port................................................... 25
9.4 Instrument Serial Number............................................................................... 26
9.5 Additional GLP Features................................................................................. 26
10.
Notepad Function...................................................................... 27
10.1
Recording Readings into the Notepad ......................................................... 27
10.2
Recalling Records from the Notepad ........................................................... 27
10.3
Erasing Records from the Notepad .............................................................. 28
10.4
Printing Records from the Notepad to the RS232 Port ................................. 28