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MODEL 3081 pH/ORP TABLE OF CONTENTS
TABLE OF CONTENTS CONT’D
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8.0 PROGRAMMING FOR pH MEASUREMENTS....................................................... 56
8.1 General .................................................................................................................... 56
8.2 Entering and Leaving the Program Menu ................................................................ 56
8.3 Output Ranging........................................................................................................ 58
8.4 Diagnostic Parameters............................................................................................. 60
8.5 Temperature Related Settings ................................................................................. 64
8.6 Display Units............................................................................................................ 66
8.7 Buffer Calibration Parameters.................................................................................. 67
8.8 Isopotential Parameters........................................................................................... 69
8.9 Generating a Test Current........................................................................................ 71
9.0 CALIBRATION OF ORP MEASUREMENTS .......................................................... 72
9.1 General .................................................................................................................... 72
9.2 Entering and Leaving the Calibrate Menu................................................................ 72
9.3 Using the Hold Function........................................................................................... 72
9.4 Temperature Calibration........................................................................................... 73
9.5 Standardization ........................................................................................................ 74
10.0 PROGRAMMING FOR ORP MEASUREMENTS.................................................... 75
10.1 General .................................................................................................................... 75
10.2 Entering and Leaving the Program Menu ................................................................ 75
10.3 Output Ranging........................................................................................................ 77
10.4 Diagnostic Parameters............................................................................................. 79
10.5 Temperature Element............................................................................................... 82
10.6 Display Units............................................................................................................ 83
10.7 Generating a Test Current........................................................................................ 84
11.0 MAINTENANCE ...................................................................................................... 85
11.1 Overview.................................................................................................................. 85
11.2 Transmitter Maintenance ......................................................................................... 85
11.3 pH Sensor Maintenance .......................................................................................... 86
11.4 ORP Sensor Maintenance ....................................................................................... 87
11.5 Calibration................................................................................................................ 88
12.0 TROUBLESHOOTING ........................................................................................... 89
12.1 Warning and Fault Messages .................................................................................. 89
12.2 Calibration Errors..................................................................................................... 90
12.3 Troubleshooting - General ....................................................................................... 90
12.4 Troubleshooting When a Diagnostic Message is Showing ...................................... 90
12.5 Troubleshooting When No Diagnostic Message is Showing.................................... 102
12.6 Systematic Troubleshooting..................................................................................... 107
12.7 Displaying Diagnostic Variables............................................................................... 110
12.8 Testing the Transmitter by Simulating pH ................................................................ 110
12.9 Factory Assistance and Repairs .............................................................................. 113