Rosemount 54E - Page 5

Section Title Page
6.0 THEORY OF OPERATION...................................................................................... 44
6.1 The pH Sensor Assembly........................................................................................ 44
6.2 Continuous Sensor Diagnostics .............................................................................. 44
6.3 Interval Timer........................................................................................................... 45
6.4 Alarm Relays ........................................................................................................... 46
6.5 Time Proportional Control (TPC) Mode ................................................................... 46
6.6 Normal Mode........................................................................................................... 47
6.7 Analog Outputs ....................................................................................................... 47
6.8 Controller Mode Priority........................................................................................... 48
6.9 PID Control .............................................................................................................. 49
7.0 SPECIAL PROCEDURES AND FEATURES.......................................................... 53
7.1 Password Protection................................................................................................ 53
7.2 Configuring Security................................................................................................ 54
7.3 Solution Temperature Compensation ...................................................................... 55
8.0 TROUBLESHOOTING ............................................................................................ 57
8.1 Displaying Diagnostic Variables.............................................................................. 60
8.2 Troubleshooting Guidelines..................................................................................... 62
8.3 Replacement Parts.................................................................................................. 68
9.0 RETURN OF MATERIALS...................................................................................... 69
Appendix Title Page
A ORP CONFIGURATION.......................................................................................... 70
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MODEL 54e pH/ORP TABLE OF CONTENTS
TABLE OF CONTENTS (CONTINUED)