7.1.3 Auto-calibration procedure ........................................................................................... 41
7.1.4 Manual calibration .........................................................................................................43
7.1.5 Standardization for pH ...................................................................................................44
7.1.5.1 Standardization overview ...................................................................................44
7.1.5.2 Standardization procedure ................................................................................ 44
7.2 Calibrating ORP sensors ............................................................................................................... 45
7.2.1 ORP overview ................................................................................................................ 45
7.2.2 Calibrating temperature with an ORP sensor ................................................................. 45
7.2.3 Standardization ............................................................................................................. 46
7.2.3.1 Preparation of ORP standard solutions ............................................................... 46
7.2.3.2 Standardizing with an ORP sensor ......................................................................46
7.2.4 Matching transmitter to ORP sensor's temperature element ......................................... 46
7.3 Calibrating contacting and toroidal conductivity sensors ............................................................. 46
7.3.1 Overview of calibrating contacting conductivity sensors ................................................46
7.3.2 Calibrating with contacting and conductivity sensors .................................................... 46
7.3.3 Zeroing the sensor .........................................................................................................47
7.3.4 Adjusting the temperature ............................................................................................ 47
7.3.5 In-process calibration .................................................................................................... 47
7.3.6 Temperature slope ........................................................................................................ 47
7.3.7 Output calibration ......................................................................................................... 48
7.4 Calibrating dissolved oxygen, ozone, free chlorine, total chlorine, and ozone sensors .................. 48
7.4.1 Calibrating amperometric sensors ................................................................................. 48
7.4.2 Zeroing the sensor procedure ........................................................................................48
7.4.3 Air calibration procedure (dissolved oxygen) ................................................................. 49
7.4.4 In-process calibration procedure (dissolved oxygen) ......................................................50
7.4.5 Full scale calibration procedure (free chlorine, total chlorine, ozone) .............................51
7.4.6 Dual slope calibration (free chlorine, total chlorine) .......................................................51
Chapter 8 Diagnostics and troubleshooting ....................................................................................53
8.1 pH/ORP diagnostics and troubleshooting .....................................................................................53
8.1.1 5081-P warning and fault messages ...............................................................................53
8.1.2 Calibration errors ...........................................................................................................54
8.1.3 Troubleshooting - general ............................................................................................. 54
8.1.4 Troubleshooting when a diagnostic message is showing ............................................... 55
8.1.4.1 GLASSFAIL ..........................................................................................................55
8.1.4.2 GLASSWArn ....................................................................................................... 58
8.1.4.3 rEF FAIL .............................................................................................................. 59
8.1.4.4 rEF WARn ........................................................................................................... 60
8.1.4.5 CALIbrAtE ...........................................................................................................61
8.1.4.6 tEMP HI and tEMP LO ..........................................................................................61
8.1.4.7 LinE FAIL .............................................................................................................63
8.1.4.8 InPUt WArn ........................................................................................................64
8.1.4.9 SLOPE Err LO ...................................................................................................... 65
8.1.4.10 SLOPE Err HI ....................................................................................................... 66
8.1.4.11 Std Err ................................................................................................................67
8.1.4.12 rOM FAIL or CPU FAIL ......................................................................................... 67
8.1.4.13 AdC WArn or CyCLE PWr .................................................................................... 67
8.1.4.14 WritE Err .............................................................................................................67
8.1.4.15 FACt FAIL error message .................................................................................... 68
8.1.5 Troubleshooting when no diagnostic message is showing ............................................. 68
8.1.5.1 Id000 in display ..................................................................................................69
8.1.5.2 Transmitter not responding to IRC ..................................................................... 69
Contents
ii Rosemount 5081