FACt Fail, Symptom Section | Emerson Process Management 3081 pH/ORP

MODEL 3081 pH/ORP	SECTION 12.0
	TROUBLESHOOTING

12.4.15 FACt FAIL

FACt FAIL appears if the transmitter factory calibration message has been triggered. A stray noise spike can cause this message to appear. If the pH reading seems acceptable, reset the calibration flag.

1.Enter the factory calibration menu by pressing Í on the IRC ten times. The display will not change. Immediately press Ï. FActorYCAL appears in the display.

2.Press NEXT. rEPAir appears in the display.

3.Press NEXT. ConFiG appears in the display.

4.Press NEXT. rESEt appears in the display.

5.Press ENTER. rESEtCFG appears in the display.

6.Press ENTER. rESEt appears again.

7.Press NEXT. FActorYCAL reappears.

8.Press ENTER. FactOn appears in the display.

9.Press Ï. FactOFF appears. Press ENTER to store the settings.

10.Press EXIT repeatedly until the main display reappears.

If the message does not clear or problems persist, the electronics have failed. Replace the electronic board stack (PN 23574-02).

12.5 TROUBLESHOOTING WHEN NO DIAGNOSTIC MESSAGE IS SHOWING

If no diagnostic message is showing, locate the symptom(s) in the table below and refer to the appropriate section for assistance.

	SYMPTOM	SECTION
	Id 000 appears in display when trying to program or calibrate transmitter	12.5.1
	Error message flashing in display	12.4
	Transmitter does not respond to remote controller	12.5.2
	Calibration Problems:
	SLOPE Err HI or SLOPE Err LO appears after calibration attempt	12.5.3
	bF1 or bF2 continuously flashes during auto calibration	12.5.4
	pH reading in buffer drifts during manual calibration	12.5.5
	Measurement Problems:
	Sensor does not respond to known pH changes	12.5.6
	Buffer calibration is acceptable; process pH is slightly different from expected value	12.5.7
	Buffer calibration is acceptable; process pH is grossly wrong and/or readings are noisy	12.5.8
	Temperature reading is inaccurate	12.5.9
	HART communicator does not work	12.5.10
	Transmitter problems
	No display	12.5.11
	Display segments missing or display incorrect	12.5.12
	Transmitter locked up, all display segments lit	12.5.13
	Transmitter periodically restarts itself	12.5.14

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Emerson Process Management 3081 pH/ORP instruction manual FACt Fail, Symptom Section, 102

Contents

Model 3081 pH/ORP Essential Instructions What YOU Need to Know Use the Quick Start Guide if Base ModelRTD Preamplifier located Model Option note Quick Start Guide for Model 3081pH/ORP Output Optional WiringPower up and Calibration Automatic Buffer Calibration Standardizing to Match a Reference Instrument Calibrate Program Diagnose Menu Tree for pH Technical Support Hotline Table of Contents Model 3081 PH/ORP Microprocessor Transmitter Table of Contents CONT’D 13.0 11414.0 120 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 Section Description and SpecificationsFeatures Model 275 Hart COMMUNICATOR. The Model AccessoriesYear 2000 Compliance Millennium Status Specifications -GENERAL for Model 3081 pH/ORP Intrinsic SafetyConduit Openings 3/4 in. Fnpt Hazardous Area Classification Explosion Proof PH Input Range 0 to 14 pH Specifications ORPOrdering Information Model 3081 pH/ORP TRANSMITTER-SENSOR Compatibility Chart Preamplifier LocationSensor-mounted Remote Model ORP MODEL/PN Description Shipping Weight Section Installation PRE-INSTALLATION Setup 2.2.1 Transmitter Default SettingsTemperature Element Unpacking and Inspection Changing Switch and Jumper Positions Preamplifier Location 40308110 Mechanical Installation 2.4.1 General information Orienting the Display Board Mounting on a Flat Surface. See Figure Mounting the Model 3081 pH/ORP Transmitter on a Flat Surface 40308103 Pipe Mounting Power Supply-Current Loop Wiring. Refer to Figure Power SUPPLY/CURRENT LoopPower Supply and Load Requirements. Refer to Figure General Information Section WiringGeneral Information Wiring Diagrams Wiring Diagrams for Model 396R Sensors Junction Box Wiring Diagrams for pH and ORP SensorsWire Function Wiring Diagram Wiring Diagrams for Model 396P Sensors Junction Box Wiring Diagrams for Model 389 Sensors Junction Box Wire Functions Wiring Diagram Wiring Diagrams for Model 385+ Sensors Junction BoxWire Functions 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 Section Intrinsically Safe & Explosion Proof Intrinsically Safe InstallationsExplosion Proof Installations Fmrc Installation for Model 3081 pH/ORP Transmitter Page CSA. forInstallation 3081Model TransmitterpH/ORPPage Page I T N E X T T E R Section Operation with Remote ControllerDisplays Infrared Remote Controller IRC KEY Functions Infrared Remote Controller Menu Tree for pH Diagnostic Messages ORP Menu Tree ORP Retrieving a Lost Security Code SecurityEntering the Security Code Connecting the Hart Communicator Operation Section Operation with Model Fast Key Sequences Off-line and On-line OperationMenu Tree Is on 2b. pH Menu Tree Hart 3a. ORP Menu Tree Hart 3b. ORP Menu Tree Hart Entering and Leaving the Calibrate Menu Using the Hold FunctionGeneral Temperature Calibration ProcedurePurpose TEMP AdJ Use of Calibration Standards buffers Auto CalibrationWhat Happens During Auto Calibration? CAL bF 10.00 Manual Calibration 10.00 What Happens During Standardization? Making the Transmitter Reading Match a Second pHMeter Standardization Std Slope Programming for pH Measurements Entering and Leaving the Program Menu PH Settings List Mnemonic Display Limits Factory Settings User Settings Output Ranging Definitions 4MA Diagnostic Parameters Suggested Glass Impedance Warning and Failure Limits Section GFH GwjhGwjl GFL RFH RWJHRWJL RFL Temperature Related Settings TEMP TAUtOTMAn TC 1 Display Units DISPLAYTYPE Code Buffer Calibration Parameters M E BUFFErBAUtO Isopotential Parameters Snr ISOPOtntALTCOEFF 000 TESt Generating a Test CurrentSIM OUtPUt Section Calibration of ORP Measurements TEMP AdJ 25.0 Preparation of ORP Standard Solutions Std Section Programming for ORP Measurements ORP Settings LIst Mnemonic Display Factory User Limits Settings Program Level Output Ranging 20MA 400 Diagnostic Parameters DIAGnOSTIC RWJH Temperature Element Definition Display Units Generating a Test Current Overview Section MaintenanceTransmitter Maintenance PH Sensor Maintenance Frequency of CleaningCleaning Procedures Problem Cleaning Suggestions Checking the Reference Electrode Rejuvenating Reference Electrodes Calibration Frequency ORP Sensor Maintenance 11.4.1 Frequency of CleaningCalibration 11.5.1 General Factory Assistance and Repairs Section TroubleshootingTesting the Transmitter by Simulating pH Message Section Calibration ErrorsTroubleshooting is easy as 1, 2 Troubleshooting Flowchart Glassfail Glassfail Slope Condition of Sensor Troubleshooting Flowchart GLASSWArn Slope Status of SensorGLASSWArn REF Fail Troubleshooting Flowchart rEF Fail Troubleshooting Flowchart rEF WArn Troubleshooting Flowchart- tEMP HI and tEMP LOREFWArn CALIbrAtE Three-wire RTD RTD Resistance Values Temperature 3K Balco Troubleshooting Flowchart- LInE Fail LInE Fail Troubleshooting Flowchart-InPUt WArn InPUt WArn Troubleshooting Flowchart-SLOPE Err LO Slope Err LO Troubleshooting Flowchart-SLOPE Err HI Troubleshooting Flowchart-Std ErrSlope Err HI Std Err Troubleshooting-AdC WArn or CyCLE PWr Troubleshooting-WritE ErrROM Fail or CPU Fail AdC WArn or CyCLE PWr 102 Symptom SectionFACt Fail 12.5.1 Id 000 in Display 103 104 PH Reading in Buffer Drifts During Manual CalibrationSensor Does Not Respond To Known pH Changes 105 Temperature Reading Is Inaccurate Hart Communications ProblemsNo Display Display Segments Missing Replace the display board PN 106 12 .13 Transmitter Locks Up 12 .14 Transmitter Periodically Restarts Itself YES OK? Diagnostic Messages Testing the Transmitter by Simulating the pHDiagnostic Measurements Voltage mV 111 PH Simulation with the Model 381+ Sensor Simulate pH through Model 381+ Sensor Preamplifier 112 Return of Materials PH Simulation When Preamplifier is in SensorTroubleshooting Assistance PH Measurements 115 Measuring ElectrodeReference Electrode Liquid Junction Potential 116 Glass Electrode Slope Buffers and CalibrationTemp C Slope mV/unit pH 117 Junction Potential Mismatch 118 119 Sensor DiagnosticsSHIELDS, INSULATION, and Preamplifiers Section ORP Measurements General Measuring Electrode Reference ElectrodeLiquid Junction Potential 121 122 Relating Cell Voltage to ORP14.6 ORP, CONCENTRATION, and pH 123 Interpreting ORP MeasurementsORP,mV VI,Chromiumppm Sulfur dioxide added Calibration 124 125 Hart Interface Devices Section Theory Remote CommunicationsOverview of Hart Communication Asset Management Solutions AMS Main Menu Tools 127 Section Glossary Term Definition 129 Hart 130 ORP 131 RTD 132 133 Section Return of Material Warranty RepairNON-WARRANTY Repair Warranty Return of Material ON-LINE Ordering NOW Available on OUR WEB Site