Emerson 54e pH/ORP instruction manual Standardize 400 mV, ORP Calibration

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MODEL 54e pH/ORP	APPENDIX A
	ORP CONFIGURATION

A.1 ORP CALIBRATION

Standardize Adjust temperature

ExitEnter

ORP Calibration consists of a single standardize adjustment that changes the zero offset of the controller. This procedure can be done with the ORP sensor in an ORP standard solution or with the sensor left in the process and a laboratory analysis of a grab sample.

1.From the main display, press any key to obtain the main menu. With the cursor on "Calibrate", press Enter (F4).

NOTE

The Hold Mode screen may appear at this time if the feature was enabled in Section 5.6. Changing the Hold Mode to ON holds the outputs in a fixed state, and avoids process upsets during cali- bration. If you don't want to engage Hold, simply press F3 (Cont). Otherwise, press F4 (Edit), and change the Hold Mode to On before continuing.

Skip to step 4 if using an ORP standard solution.

2.Take a grab sample that is as close to the sensor as possible.

3.Using a calibrated ORP instrument, determine the ORP of the process or grab sample.

4.Move the cursor to “Standardize” and press Enter (F4).

400 mV

Standardize: 400 mV

ExitEnter

5.The number on the large display is the live process ORP reading. The next line displays the ORP reading when the display was accessed. Press Edit (F4) to perform the standardize.

Use the arrow b key to change the reading to the desired value and then press Save (F4) to complete the procedure. Esc (F3) will cancel.

400 mV

Standardize: +0402 mV

NOTE

The + sign can be changed to a - sign after the numerical portion of the number has been entered by highlighting the + and press- ing the down arrow key.

Before exiting the calibration mode, remember to change the hold mode setting to OFF (if it was turned on in step 3).

Esc Save

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Contents Model 54e pH/ORP PH/ORP Hart Analyzer/ControllerElectrical Shock Hazard Essential InstructionsPage Description and Specifications Model 54E PH/ORP Microprocessor AnalyzerSection Title Appendix Title List of TablesTable No Title About This Document Table of Contents List of FiguresSection Description and Specifications General DescriptionDescription of Controls Power Specifications Physical Specifications GeneralRelative Humidity 95%, non condensing Alarms Current OutputsRecommended Sensors Analyzer Specifications @ 25COrdering Information Code OptionsPart NO. Description Mechanical Installation Section InstallationLocating the Controller Unpacking and InspectionPanel Mounting Power Input Wiring Section WiringAnalog Output Wiring Alarm Relay Output Wiring454EPH02 PH Sensor Wiring PH Sensor CompatibilityTions will Result in Controller MALFUNC- Tion 454EPH01 Cable Dressing Final Electrical Check Wiring to Model Introduction Section CalibrationHold Mode Off Adjust temp 25.1 CTemperature Calibration Autocal buffer Buffer 1 -- WaitAutomatic TWO-POINT Calibration Auto buffer cal done Use the arrow keys to select the correct bufferCalibration Notes Pt 04.00pH 25C Calibrate pointPt calibration done Manual TWO-POINT CalibrationSINGLE-POINT pH Calibration Standardize 7.01 pHTemp comp Auto Temperature Compensation OptionsOutput trim 59.16 mV/pHHold Mode Output trimTrim Outputs PH Settings List Section Software ConfigurationRanges Factory Settings User Settings Diagnostics Section Outline of Menu Levels Changing Alarm Setpoints Alarm High 14.00pHSimulate tests Setpoint 07.00 pH4mA 0.00 pH 20mA 2.00 pH Setpoint 7.00 pHSetpoint + 06.90 pH Changing Output Setpoints PID onlyOutput OutputMA 0.00 pH 20 mA 14.00 pH Output 1 12.00 mA MA +00.00 pHTest output Test alarm Alarm setpoints Output setpointsTesting Outputs and Alarms Simulated testsTest alarm 1 Open Test alarm 1 OpenMeasure pH Display right AL2Security Caution Display contrast Timeout OnDisplay Control ModeChanging Output Parameters Output Control ParametersFault 22.00 mA Range 4-20 mAlRange 4-20 mA Output 2 control Output 2 setup Fault 22.00mAHold feature setup Hold Disable featureAlarms Alarm 3 controlInterval timer Setpoint 0.01 pH Delay 0 sec Alarm LowHysteresis 0.01 pH Delay 0 sec Relay Default NoneSetpoint +07.00 pH Relay default NoneTime period 30 sec URV 2.00 pHFeed limit Disable Alarm FaultTimeout 3600 sec Alarm 4 SetupTimer Disable Recovery 600 secOn time 120 sec Interval Timer Examples Diagnostics Diagnostics OffZero offset 60 mV Auto Calibration Setup DiagnosticsAutocal Standard Stabilize pH 0.01 pH Stabilize time 10 secStandard Buffers Auto Calibration SetupSection Theory of Operation Continuous Sensor DiagnosticsInterval Timer Typical set pointsSee .8 for instructions on chang- ing these setpoints Time Proportional Control TPC Mode Code Alarm RelaysAnalog Outputs Normal ModeController Mode Priority Chart Controller Mode PriorityCondition Definitions Action DefinitionsPID Control Code PID Control Mode CombinationsPID Control Measurement and Set Point Feedback ControlProportional Mode Gain Proportional Gain Plus Integral ResetControl Loop Adjustment and Tuning Process Reaction Curve Process Reaction Curve MethodPID Control Section Special Procedures and Features Password ProtectionLevel 1 3 Password Privileges Security Configuring SecurityCustom Curve Lock allSolution Temperature Compensation Temp coeff +.000Sensor iso 07.00 pH Operate iso +07.00 pH Troubleshooting is easy as 1, 2, 3… Section TroubleshootingDiagnostic Messages Description of problem Diagnostic MessagesSymptom Action Quick Troubleshooting GuideDiagnostic Variables Theoretical pH vs. Millivolt Values at 25C 77F Temperature Compensation Circuit Troubleshooting GuidelinesTroubleshooting Procedure Ohms Ambient TemperaturePreamplifier Troubleshooting Procedure Preamp in a junction box FigureController preamp check Figure Junction Box Preamplifier Check No Power Troubleshooting GuideCoated glass electrode Clean with soft cloth and clean water Password protected Part Number Description Replacement PartsNON-WARRANTY Repair Warranty RepairSection Return of Material GeneralQuick Startup ORP Appendix a ORP ConfigurationItem Choices ORP Settings User Settings Table A-1. ORP Settings ListDiagnostics Section Choices ORP Settings User SettingsSimulated tests Output setpointsORP Calibration Standardize 400 mVSensor or Circuit Board only Return of Materials RequestReturn of Material WarrantySpecifications subject to change without notice