Emerson Process Management 3081 pH/ORP manual

MODEL 3081 pH/ORP	SECTION 4.0
	INTRINSICALLY SAFE & EXPLOSION PROOF

SECTION 4.0

INTRINSICALLY SAFE & EXPLOSION PROOF

4.1Intrinsically Safe Installations

4.2Explosion Proof Installations

4.1INTRINSICALLY SAFE INSTALLATIONS

The installation wiring, operating parameters, or agency tags for intrinsically safe operation are given in Figures 4-1, 4-2, and 4-3.

4.2EXPLOSION PROOF INSTALLATIONS

The installation wiring and operating parameters for explosion proof operation are given in Figure 4-4.

FIGURE 4-1. Intrinsically Safe BASEEFA Model 3081 Label

31

Image 45

Emerson Process Management 3081 pH/ORP Section Intrinsically Safe & Explosion Proof, Intrinsically Safe Installations

Contents

Model 3081 pH/ORP Essential Instructions What YOU Need to Know Base Model Use the Quick Start Guide ifRTD Preamplifier located Model Option note Quick Start Guide for Model 3081pH/ORP Wiring Power up and CalibrationOutput Optional Standardizing to Match a Reference Instrument Automatic Buffer Calibration Menu Tree for pH Technical Support Hotline Calibrate Program Diagnose Model 3081 PH/ORP Microprocessor Transmitter Table of Contents Table of Contents CONT’D 114 13.014.0 120 Table of Contents CONT’D List of Figures Table of Contents CONT’D List of Figures CONT’D Table of Contents CONT’D List of Tables Description and Specifications FeaturesSection Accessories Year 2000 Compliance Millennium StatusModel 275 Hart COMMUNICATOR. The Model Intrinsic Safety Specifications -GENERAL for Model 3081 pH/ORPConduit Openings 3/4 in. Fnpt Hazardous Area Classification Explosion Proof Specifications ORP Ordering InformationPH Input Range 0 to 14 pH Preamplifier Location Model 3081 pH/ORP TRANSMITTER-SENSOR Compatibility ChartSensor-mounted Remote Model ORP MODEL/PN Description Shipping Weight PRE-INSTALLATION Setup 2.2.1 Transmitter Default Settings Section InstallationTemperature Element Unpacking and Inspection Preamplifier Location Changing Switch and Jumper Positions 40308110 Orienting the Display Board Mechanical Installation 2.4.1 General information Mounting the Model 3081 pH/ORP Transmitter on a Flat Surface Mounting on a Flat Surface. See Figure Pipe Mounting 40308103 Power SUPPLY/CURRENT Loop Power Supply and Load Requirements. Refer to FigurePower Supply-Current Loop Wiring. Refer to Figure Section Wiring General Information Wiring DiagramsGeneral Information Wiring Diagrams for pH and ORP Sensors Wire Function Wiring DiagramWiring Diagrams for Model 396R Sensors Junction Box Wiring Diagrams for Model 389 Sensors Junction Box Wiring Diagrams for Model 396P Sensors Junction Box Wiring Diagrams for Model 385+ Sensors Junction Box Wire FunctionsWire Functions Wiring Diagram Jumpers Supplied by Customer Section Section Section 15. Wire functions for Model 385+ 17. Wire functions for Model 328A-07 19. Wiring diagram for Model 320HP-10-55 21. Wire Functions for Model Section 24. Preparation of Raw Connecting Cable PN Sensor Flow Chart on Sensor Flow Chart on Sensor Flow Chart Intrinsically Safe Installations Explosion Proof InstallationsSection Intrinsically Safe & Explosion Proof Fmrc Installation for Model 3081 pH/ORP Transmitter Page 3081Model TransmitterpH/ORP CSA. forInstallationPage Page Section Operation with Remote Controller DisplaysI T N E X T T E R Infrared Remote Controller Infrared Remote Controller IRC KEY Functions Menu Tree for pH Menu Tree ORP Diagnostic Messages ORP Security Entering the Security CodeRetrieving a Lost Security Code Section Operation with Model Connecting the Hart Communicator Operation Off-line and On-line Operation Menu TreeFast Key Sequences Is on 2b. pH Menu Tree Hart 3a. ORP Menu Tree Hart 3b. ORP Menu Tree Hart Using the Hold Function GeneralEntering and Leaving the Calibrate Menu Procedure Temperature CalibrationPurpose TEMP AdJ Auto Calibration What Happens During Auto Calibration?Use of Calibration Standards buffers 10.00 CAL bF Manual Calibration 10.00 Making the Transmitter Reading Match a Second pH Meter StandardizationWhat Happens During Standardization? Slope Std Entering and Leaving the Program Menu Programming for pH Measurements Mnemonic Display Limits Factory Settings User Settings PH Settings List Definitions Output Ranging 4MA Suggested Glass Impedance Warning and Failure Limits Diagnostic Parameters Section Gwjh GFHGwjl GFL RWJH RFHRWJL RFL Temperature Related Settings TAUtO TEMPTMAn TC 1 DISPLAY Display UnitsTYPE Code Buffer Calibration Parameters BUFFEr BAUtOM E Isopotential Parameters ISOPOtntAL TCOEFF 000Snr Generating a Test Current SIM OUtPUtTESt Section Calibration of ORP Measurements 25.0 TEMP AdJ Std Preparation of ORP Standard Solutions Section Programming for ORP Measurements Mnemonic Display Factory User Limits Settings Program Level ORP Settings LIst Output Ranging 20MA 400 Diagnostic Parameters DIAGnOSTIC RWJH Definition Temperature Element Display Units Generating a Test Current Section Maintenance Transmitter MaintenanceOverview Frequency of Cleaning PH Sensor MaintenanceCleaning Procedures Problem Cleaning Suggestions Rejuvenating Reference Electrodes Checking the Reference Electrode ORP Sensor Maintenance 11.4.1 Frequency of Cleaning Calibration 11.5.1 GeneralCalibration Frequency Section Troubleshooting Testing the Transmitter by Simulating pHFactory Assistance and Repairs Calibration Errors Troubleshooting is easy as 1, 2Message Section Glassfail Troubleshooting Flowchart Glassfail Slope Condition of Sensor Slope Status of Sensor Troubleshooting Flowchart GLASSWArnGLASSWArn REF Fail Troubleshooting Flowchart rEF Fail Troubleshooting Flowchart- tEMP HI and tEMP LO Troubleshooting Flowchart rEF WArnREFWArn CALIbrAtE RTD Resistance Values Temperature 3K Balco Three-wire RTD LInE Fail Troubleshooting Flowchart- LInE Fail InPUt WArn Troubleshooting Flowchart-InPUt WArn Slope Err LO Troubleshooting Flowchart-SLOPE Err LO Troubleshooting Flowchart-Std Err Troubleshooting Flowchart-SLOPE Err HISlope Err HI Std Err Troubleshooting-WritE Err Troubleshooting-AdC WArn or CyCLE PWrROM Fail or CPU Fail AdC WArn or CyCLE PWr Symptom Section FACt Fail102 103 12.5.1 Id 000 in Display PH Reading in Buffer Drifts During Manual Calibration Sensor Does Not Respond To Known pH Changes104 105 Hart Communications Problems Temperature Reading Is InaccurateNo Display Display Segments Missing Replace the display board PN 106 12 .14 Transmitter Periodically Restarts Itself 12 .13 Transmitter Locks Up YES OK? Testing the Transmitter by Simulating the pH Diagnostic MeasurementsDiagnostic Messages 111 Voltage mV Simulate pH through Model 381+ Sensor Preamplifier 112 PH Simulation with the Model 381+ Sensor PH Simulation When Preamplifier is in Sensor Troubleshooting AssistanceReturn of Materials PH Measurements Measuring Electrode Reference Electrode115 116 Liquid Junction Potential Buffers and Calibration Glass Electrode SlopeTemp C Slope mV/unit pH 117 118 Junction Potential Mismatch Sensor Diagnostics SHIELDS, INSULATION, and Preamplifiers119 General Section ORP Measurements Reference Electrode Measuring ElectrodeLiquid Junction Potential 121 Relating Cell Voltage to ORP 14.6 ORP, CONCENTRATION, and pH122 Interpreting ORP Measurements ORP,mV VI,Chromiumppm Sulfur dioxide added123 124 Calibration 125 Section Theory Remote Communications Overview of Hart CommunicationHart Interface Devices AMS Main Menu Tools 127 Asset Management Solutions Term Definition Section Glossary 129 130 Hart 131 ORP 132 RTD 133 Warranty Repair NON-WARRANTY RepairSection Return of Material Return of Material Warranty ON-LINE Ordering NOW Available on OUR WEB Site