Manuals / Emerson Process Management / Musical Instruments & Equipment / Microphone

Emerson Process Management 3081 pH/ORP instruction manual Programming for pH Measurements

Models: 3081 pH/ORP

1 150

Download 150 pages 18.28 Kb

Page 70

MODEL 3081 pH/ORP	SECTION 8.0
	PROGRAMMING FOR pH MEASUREMENTS

SECTION 8.0

PROGRAMMING FOR pH MEASUREMENTS

8.1General

8.2Entering and Leaving the Program Menu

8.3Output Ranging

8.4Diagnostic Parameters

8.5Temperature Related Settings

8.6Display Units

8.7Buffer Calibration Parameters

8.8Isopotential Parameters

8.9Generating a Test Current

8.1 GENERAL

This section describes how to do the following:

1.assign pH values to the 4 and 20 mA outputs,

2.set the current generated by the transmitter during hold,

3.set the current generated by the transmitter when a fault is detected,

4.change sensor diagnostic limits,

5.enable and disable automatic temperature compensation,

6.change the units of the displayed variables,

7.program a security code,

8.identify buffers for auto calibration,

9.change the transmitter isopotential point,

10.simulate output currents for testing.

Factory default settings are given in Table 8-1. If default settings are acceptable, the transmitter is ready for calibration. See Section 7.0, Calibration of pH Measurements. Once a setting has been changed, there is no way to automatically reset the transmitter to factory defaults. Settings must be returned to default values one at a time. Figure 5-4 shows the menu tree.

8.2 ENTERING AND LEAVING THE PROGRAM MENU

Press PROG on the infrared remote controller (IRC) to enter the Program menu. To save new settings, press ENTER. To leave the Program menu without saving new values, press EXIT . Pressing EXIT with a prompt showing returns the display to the first prompt in the sub-menu. Pressing EXIT again returns the transmitter to the process display.

If program settings are protected with a security code, pressing PROG or CAL will cause the Id screen to appear. Key in the security code and press ENTER . The first sub-menu will appear. For more information, see Section 5.7, Security.

A transmitter adjacent to the one being programmed may pick up signals from the IRC. To avoid accidentally changing settings, use a different security code for each nearby transmitter. See Section 5.7, Security, and Section 8.6, Display Units, for details.

56

Image 70

Emerson Process Management 3081 pH/ORP Programming for pH Measurements, Entering and Leaving the Program Menu

Contents

Model 3081 pH/ORP Essential Instructions What YOU Need to Know RTD Use the Quick Start Guide ifBase Model Preamplifier located Model Option noteQuick Start Guide for Model 3081pH/ORP Power up and Calibration WiringOutput Optional Automatic Buffer Calibration Standardizing to Match a Reference InstrumentCalibrate Program Diagnose Menu Tree for pH Technical Support HotlineTable of Contents Model 3081 PH/ORP Microprocessor TransmitterTable of Contents CONT’D 14.0 13.0114 120Table 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 Features Description and SpecificationsSection Year 2000 Compliance Millennium Status AccessoriesModel 275 Hart COMMUNICATOR. The Model Conduit Openings 3/4 in. Fnpt Specifications -GENERAL for Model 3081 pH/ORPIntrinsic Safety Hazardous Area Classification Explosion ProofOrdering Information Specifications ORPPH Input Range 0 to 14 pH Sensor-mounted Remote Model 3081 pH/ORP TRANSMITTER-SENSOR Compatibility ChartPreamplifier Location Model ORPMODEL/PN Description Shipping Weight Temperature Element Section InstallationPRE-INSTALLATION Setup 2.2.1 Transmitter Default Settings Unpacking and InspectionChanging Switch and Jumper Positions Preamplifier Location40308110 Mechanical Installation 2.4.1 General information Orienting the Display BoardMounting on a Flat Surface. See Figure Mounting the Model 3081 pH/ORP Transmitter on a Flat Surface40308103 Pipe MountingPower Supply and Load Requirements. Refer to Figure Power SUPPLY/CURRENT LoopPower Supply-Current Loop Wiring. Refer to Figure General Information Wiring Diagrams Section WiringGeneral Information Wire Function Wiring Diagram Wiring Diagrams for pH and ORP SensorsWiring Diagrams for Model 396R Sensors Junction Box Wiring Diagrams for Model 396P Sensors Junction Box Wiring Diagrams for Model 389 Sensors Junction BoxWire Functions Wiring Diagrams for Model 385+ Sensors Junction BoxWire 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 Explosion Proof Installations Intrinsically Safe InstallationsSection Intrinsically Safe & Explosion Proof Fmrc Installation for Model 3081 pH/ORP Transmitter Page CSA. forInstallation 3081Model TransmitterpH/ORPPage Page Displays Section Operation with Remote ControllerI T N E X T T E R Infrared Remote Controller IRC KEY Functions Infrared Remote ControllerMenu Tree for pH Diagnostic Messages ORP Menu Tree ORPEntering the Security Code SecurityRetrieving a Lost Security Code Connecting the Hart Communicator Operation Section Operation with ModelMenu Tree Off-line and On-line OperationFast Key Sequences Is on 2b. pH Menu Tree Hart 3a. ORP Menu Tree Hart 3b. ORP Menu Tree Hart General Using the Hold FunctionEntering and Leaving the Calibrate Menu Purpose Temperature CalibrationProcedure TEMP AdJWhat Happens During Auto Calibration? Auto CalibrationUse of Calibration Standards buffers CAL bF 10.00Manual Calibration 10.00 Meter Standardization Making the Transmitter Reading Match a Second pHWhat Happens During Standardization? Std SlopeProgramming for pH Measurements Entering and Leaving the Program MenuPH Settings List Mnemonic Display Limits Factory Settings User SettingsOutput Ranging Definitions4MA Diagnostic Parameters Suggested Glass Impedance Warning and Failure LimitsSection Gwjl GFHGwjh GFLRWJL RFHRWJH RFLTemperature Related Settings TMAn TEMPTAUtO TC 1TYPE Display UnitsDISPLAY CodeBuffer Calibration Parameters BAUtO BUFFErM E Isopotential Parameters TCOEFF 000 ISOPOtntALSnr SIM OUtPUt Generating a Test CurrentTESt Section Calibration of ORP Measurements TEMP AdJ 25.0Preparation of ORP Standard Solutions StdSection Programming for ORP Measurements ORP Settings LIst Mnemonic Display Factory User Limits Settings Program LevelOutput Ranging 20MA 400 Diagnostic Parameters DIAGnOSTIC RWJH Temperature Element DefinitionDisplay Units Generating a Test Current Transmitter Maintenance Section MaintenanceOverview Cleaning Procedures PH Sensor MaintenanceFrequency of Cleaning Problem Cleaning SuggestionsChecking the Reference Electrode Rejuvenating Reference ElectrodesCalibration 11.5.1 General ORP Sensor Maintenance 11.4.1 Frequency of CleaningCalibration Frequency Testing the Transmitter by Simulating pH Section TroubleshootingFactory Assistance and Repairs Troubleshooting is easy as 1, 2 Calibration ErrorsMessage Section Troubleshooting Flowchart Glassfail GlassfailSlope Condition of Sensor GLASSWArn Troubleshooting Flowchart GLASSWArnSlope Status of Sensor REF FailTroubleshooting Flowchart rEF Fail REFWArn Troubleshooting Flowchart rEF WArnTroubleshooting Flowchart- tEMP HI and tEMP LO CALIbrAtEThree-wire RTD RTD Resistance Values Temperature 3K BalcoTroubleshooting Flowchart- LInE Fail LInE FailTroubleshooting Flowchart-InPUt WArn InPUt WArnTroubleshooting Flowchart-SLOPE Err LO Slope Err LOSlope Err HI Troubleshooting Flowchart-SLOPE Err HITroubleshooting Flowchart-Std Err Std ErrROM Fail or CPU Fail Troubleshooting-AdC WArn or CyCLE PWrTroubleshooting-WritE Err AdC WArn or CyCLE PWrFACt Fail Symptom Section102 12.5.1 Id 000 in Display 103Sensor Does Not Respond To Known pH Changes PH Reading in Buffer Drifts During Manual Calibration104 105 No Display Temperature Reading Is InaccurateHart Communications Problems Display Segments Missing Replace the display board PN 10612 .13 Transmitter Locks Up 12 .14 Transmitter Periodically Restarts ItselfYES OK? Diagnostic Measurements Testing the Transmitter by Simulating the pHDiagnostic Messages Voltage mV 111PH Simulation with the Model 381+ Sensor Simulate pH through Model 381+ Sensor Preamplifier 112Troubleshooting Assistance PH Simulation When Preamplifier is in SensorReturn of Materials PH Measurements Reference Electrode Measuring Electrode115 Liquid Junction Potential 116Temp C Slope mV/unit pH Glass Electrode SlopeBuffers and Calibration 117Junction Potential Mismatch 118SHIELDS, INSULATION, and Preamplifiers Sensor Diagnostics119 Section ORP Measurements GeneralLiquid Junction Potential Measuring ElectrodeReference Electrode 12114.6 ORP, CONCENTRATION, and pH Relating Cell Voltage to ORP122 ORP,mV VI,Chromiumppm Sulfur dioxide added Interpreting ORP Measurements123 Calibration 124125 Overview of Hart Communication Section Theory Remote CommunicationsHart Interface Devices Asset Management Solutions AMS Main Menu Tools 127Section Glossary Term Definition129 Hart 130ORP 131RTD 132133 NON-WARRANTY Repair Warranty RepairSection Return of Material Warranty Return of MaterialON-LINE Ordering NOW Available on OUR WEB Site