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Emerson Process Management
3081 pH/ORP
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MODEL3081 pH/ORP
SECTION 3.0
WIRING
SENSOR FLOW CHART
(continued on page 29)
Contents
Main
ESSENTIAL INSTRUCTIONS
READ THIS PAGE BEFORE PROCEEDING!
CAUTION
WHAT YOU NEED TO KNOW
BEFORE INSTALLING AND WIRING A ROSEMOUNT ANALYTICAL SENSOR TO THE MODEL 3081 pH/ORP TRANSMITTER
If resistance is . . . the RTD is . . . about 110 ohms Pt 100 about 3000 ohms Balco 3K
CAN YOU USE THE QUICK START GUIDE ON THE FOLLOWING PAGE?
QUICK START GUIDE FOR MODEL 3081pH/ORP
FIGURE 1
Section 1.2 Setup for Sensor Models 381+-55, 385+-03, and 396P-01-55 without a junction box
FIGURE 2
FIGURE 3 FIGURE 4
Section 3 Power up and Calibration
Section 4 Output (OPTIONAL)
QUICK REFERENCE GUIDE MODEL 3081PH/ORP
HART Communicator Fast Key Sequences
MODEL 3081 PH/ORP MICROPROCESSOR TRANSMITTER
TABLE OF CONTENTS
Page
Page
LIST OF FIGURES
TABLE OF CONTENTS - CONTD LIST OF FIGURES - CONTD
LIST OF TABLES
SECTION 1.0 DESCRIPTION AND SPECIFICATIONS
1.2 ACCESSORIES
Year 2000 Compliance: Millennium Status
1.3 SPECIFICATIONS -GENERAL FOR MODEL 3081 pH/ORP
1.6 ORDERING INFORMATION
1.4 SPECIFICATIONS - pH
1.5 SPECIFICATIONS - ORP
MODEL 3081 pH/ORP TRANSMITTER-SENSOR COMPATIBILITYCHART
ACCESSORIES
SECTION 2.0 INSTALLATION
Page
40308110 H
40008125 A
Page
Page
40308122 B
SECTION 3.0 WIRING
3.1 General Information 3.2 Wiring Diagrams
3.2 WIRING DIAGRAMS FOR pH and ORP SENSORS
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18
19
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24
FIGURE 3-19. Wiring diagram for Model 320HP-10-55.
FIGURE 3-20 Wiring diagram for Model 320HP-10-58.
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SECTION 5.0 OPERATION WITH REMOTE CONTROLLER
7.00
CALIbrAtE
5.1 DISPLAYS
5.2 INFRARED REMOTE CONTROLLER (IRC) - KEY FUNCTIONS
MENU Sub-menu
5.3 MENU TREE - pH
5.4 DIAGNOSTIC MESSAGES - pH
5.5 MENU TREE - ORP
1400
5.6 DIAGNOSTIC MESSAGES - ORP
MENU Sub-menu
5.7 SECURITY
I d
000
SECTION 6.0 OPERATION WITH MODEL 275
6.3 Operation
Page
Page
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Page
SECTION 7.0 CALIBRATION OF pH MEASUREMENTS
7.4 TEMPERATURE CALIBRATION
50
7.5 AUTO CALIBRATION
7.5.1 Purpose
7.5.2 What Happens During Auto Calibration?
7.5.3 Use of Calibration Standards (buffers)
10.00
4.00
7.6 MANUAL CALIBRATION
52
7.6.1 Purpose
7.6.2 Use of calibration standards (buffers)
4.00
10.00
7.7 MAKING THE TRANSMITTER READING MATCH ASECOND pH METER (STANDARDIZATION).
08.00
59.00
SECTION 8.0 PROGRAMMING FOR pH MEASUREMENTS
57
TABLE8-1. pH Settings List
8.3 OUTPUT RANGING
Page
8.4 DIAGNOSTIC PARAMETERS
Page
Page
rFH
1400
rWJH
0040
rWJL
8.5 TEMPERATURE RELATED SETTINGS
tC
100-33
tAUtO
ON
tMAn
8.6 DISPLAYUNITS
OUtPUt
000
CUR
CODE
8.7 BUFFER CALIBRATION PARAMETERS
bAUtO
On
00.02
bUFFEr
tIME
8.8 ISOPOTENTIAL PARAMETERS
Snr
07.00
ISOPOtntAL
07.00
tCOEFF
tESt
12.00
SIM OOUtPUt
8.9 GENERATING ATEST CURRENT
SECTION 9.0 CALIBRATION OF ORP MEASUREMENTS
tEMP AAdJ
tEMP
9.4 TEMPERATURE CALIBRATION
1400
9.5 Standardization
SECTION 10.0 PROGRAMMING FOR ORP MEASUREMENTS
76
TABLE10-1. ORP Settings LIst
10.3 OUTPUT RANGING
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79
10.4 DIAGNOSTIC PARAMETERS
10.4.1 Purpose
10.4.2 Definitions
FIGURE 10-1. Suggested Warning and Failure Limits for Low Impedance Reference Electrodes
FIGURE 10-2. Suggested Glass Impedance Warning and Failure Limits for a Glass Reference Electrode
Page
rWJL
rFL
rWJH
0040
10.5 TEMPERATURE ELEMENT
tC
100-33
Page
tESt
12.00
SIM OOUtPUt
10.7 GENERATING ATEST CURRENT
SECTION 11.0 MAINTENANCE
11.3 pH SENSOR MAINTENANCE
87
11.3.3 Checking the Reference Electrode.
11.3.4 Rejuvenating Reference Electrodes
Page
SECTION 12.0 TROUBLESHOOTING
12.2 CALIBRATION ERRORS
12.3 TROUBLESHOOTING - GENERAL
12.4 TROUBLESHOOTING WHEN ADIAGNOSTIC MESSAGE IS SHOWING
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12.5 TROUBLESHOOTING WHEN NO DIAGNOSTIC MESSAGE IS SHOWING
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12.6 SYSTEMATIC TROUBLESHOOTING
108
109
FIGURE 12-6. Troubleshooting Flow Chart / Preamplifier in Transmitter or Built into Sensor
12.7 DISPLAYING DIAGNOSTIC VARIABLES
12.8 TESTING THE TRANSMITTER BY SIMULATING THE pH.
Page
40381+05 A
12.9 FACTORYASSISTANCE AND REPAIRS
SECTION 13.0 pH MEASUREMENTS
13.2 MEASURING ELECTRODE
13.3 REFERENCE ELECTRODE
13.4 LIQUID JUNCTION POTENTIAL
13.5 CONVERTING VOLTAGE TO pH
13.6 GLASS ELECTRODE SLOPE
13.7 BUFFERS AND CALIBRATION
13.8 ISOPOTENTIAL pH
13.9 JUNCTION POTENTIAL MISMATCH
13.10 SENSOR DIAGNOSTICS
13.11 SHIELDS, INSULATION, AND PREAMPLIFIERS
SECTION 14.0 ORP MEASUREMENTS
Page
Page
n
1
ORP, mV Chromium (VI), ppm
14.8 CALIBRATION
6
2
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15.1 OVERVIEW OF HART COMMUNICATION
15.2 HART INTERFACE DEVICES
SECTION 15.0 THEORY - REMOTE COMMUNICATIONS
15.1 Overview of HART Communications 15.2 HART Interface Devices 15.3 AMS Communication
15.3 ASSET MANAGEMENT SOLUTIONS
TERM DEFINITION
SECTION 16.0 GLOSSARY
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SECTION 17.0 RETURN OF MATERIAL
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