Filter
Top Products
i
MODEL 3081 pH/ORP TABLE OF CONTENTS
MODEL 3081 PH/ORP
MICROPROCESSOR TRANSMITTER
TABLE OF CONTENTS
Section Title Page
1.0 DESCRIPTION AND SPECIFICATIONS ................................................................ 1
1.1 Features................................................................................................................... 1
1.2 Accessories.............................................................................................................. 2
1.3 Specifications - General for Model 3081 pH/ORP.................................................... 3
1.4 Specifications - pH ................................................................................................... 4
1.5 Specifications - ORP ................................................................................................ 4
1.6 Ordering Information ............................................................................................... 4
2.0 INSTALLATION ....................................................................................................... 7
2.1 Unpacking and Inspection........................................................................................ 7
2.2 Pre-Installation Set Up ............................................................................................. 7
2.3 Orienting the Display Board ..................................................................................... 10
2.4 Mechanical Installation............................................................................................. 10
2.5 Power Supply/Current Loop..................................................................................... 13
3.0 WIRING.................................................................................................................... 14
3.1 General Information ................................................................................................. 14
3.2 Wiring Diagrams for pH and ORP Sensors.............................................................. 15
4.0 INTRINSICALLY SAFE AND EXPLOSION PROOF ............................................... 31
4.1 Intrinsically Safe Installations................................................................................... 31
4.2 Explosion Proof Installations.................................................................................... 31
5.0 OPERATION WITH REMOTE CONTROLLER ....................................................... 37
5.1 Displays ................................................................................................................... 37
5.2 Infrared Remote Controller (IRC)............................................................................. 38
5.3 Menu Tree - pH ........................................................................................................ 39
5.4 Diagnostic Messages - pH ....................................................................................... 39
5.5 Menu Tree - ORP..................................................................................................... 40
5.6 Diagnostic Messages - ORP.................................................................................... 40
5.7 Security .................................................................................................................... 41
6.0 OPERATION WITH MODEL 275............................................................................. 42
6.1 Note on Model 275 HART Communicator................................................................ 42
6.2 Connecting the HART Communicator...................................................................... 42
6.3 Operation ................................................................................................................. 43
7.0 CALIBRATION OF pH MEASUREMENTS ............................................................. 48
7.1 General .................................................................................................................... 48
7.2 Entering and Leaving the Calibrate Menu................................................................ 48
7.3 Using the Hold Function........................................................................................... 48
7.4 Temperature Calibration........................................................................................... 49
7.5 Auto Calibration ....................................................................................................... 50
7.6 Manual Calibration ................................................................................................... 52
7.7 Making the Transmitter Reading Match a Second pH Meter (Standardization)....... 54