Emerson 54e pH/ORP instruction manual Calibrate point, Pt 04.00pH 25C, Pt calibration done

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MODEL 54e pH/ORP

SECTION 4.0

 

CALIBRATION

4.3 MANUAL TWO-POINT CALIBRATION

2-pt calibration Standardize pH Adjust temperature

ExitEnter

This procedure is followed if Autocal is set to "Manual" in Section 5.9. Buffer values are entered manually and no stabilization check is used.

1.From the main display, press any key to obtain the main menu. With the cursor on "Calibrate", press Enter (F4). With the cursor on "2-pt Calibration", press Enter (F4) again.

NOTE

The Hold Mode screen may appear 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 calibration.

4.01pH

Calibrate point 1

Abort Cont

4.01pH

Pt. 1: 04.00pH 25°C

Pt 2

Edit

2 . Place the sensing portion of the pH sensor into a beaker containing the first buffer solution. The large displayed pH shows the actual pH.

3.Allow the pH and temperature to stabilize. This may take several min- utes, as the pH sensor may need to cool down to the buffer temper- ature. The display will flash “wait’ while the reading is stabilizing. When the pH reading is stable, press Cont (F3) to update the read- ing. Press Edit (F4) and use the arrow keys to change the indicated buffer value to the correct value for the buffer at the stabilized tem- perature. The pH values at various temperatures are written on the label of most buffer bottles.

4.Press Pt 2 (F3) to enter Buffer 1 into memory and proceed to buffer 2 (pt. 2) calibration.

NOTE

Press Abort (F1) to cancel buffer calibration and return to the cal- ibration menu.

10.01pH

Calibrate point 2

Abort Cont

10.01pH

2-pt calibration done

Esc Save

5.Remove the sensor from buffer 1 and rinse in water.

6.Place the pH sensor into a beaker containing the second buffer solu- tion.

7.Allow the pH and temperature to stabilize (as before) and press Cont (F3). The display will flash “wait’ while the reading is stabilizing.

8.Enter the correct value for buffer 2 as described in step 3 and press Save (F4) to complete the calibration. Reinstall the sensor.

CALIBRATION NOTES

1.A two-point calibration should always be followed by a sin- gle-point calibration (see Section 4.4)

2.After a buffer calibration, the electrode slope value can be checked to see if the electrode is aging.

3.If the sensor is not at the same temperature as the buffer the cal- ibration will be in error.

4.If the hold mode is ON, be certain to reinstall the sensor in the process and change the setting to OFF to return to normal oper- ation.

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Contents PH/ORP Hart Analyzer/Controller Model 54e pH/ORPEssential Instructions Electrical Shock HazardPage Description and Specifications Model 54E PH/ORP Microprocessor AnalyzerSection Title Appendix Title List of TablesTable No Title Table of Contents List of Figures About This DocumentSection Description and Specifications General DescriptionDescription of Controls Specifications Physical Specifications General PowerRelative Humidity 95%, non condensing Alarms Current OutputsAnalyzer Specifications @ 25C Recommended SensorsOrdering Information Code OptionsPart NO. Description Section Installation Mechanical InstallationLocating the Controller Unpacking and InspectionPanel Mounting Section Wiring Power Input 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 Section Calibration IntroductionHold 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 Calibrate point Pt 04.00pH 25CPt calibration done Manual TWO-POINT CalibrationStandardize 7.01 pH SINGLE-POINT pH CalibrationTemperature Compensation Options Temp comp AutoOutput trim 59.16 mV/pHHold Mode Output trimTrim Outputs Section Software Configuration PH Settings ListRanges Factory Settings User Settings Diagnostics Section Outline of Menu Levels Alarm High 14.00pH Changing Alarm SetpointsSimulate tests Setpoint 07.00 pHSetpoint 7.00 pH 4mA 0.00 pH 20mA 2.00 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 pHAlarm setpoints Output setpoints Test output Test alarmTesting Outputs and Alarms Simulated testsTest alarm 1 Open Test alarm 1 OpenDisplay right AL2 Measure pHDisplay contrast Timeout On Security CautionControl Mode DisplayChanging Output Parameters Output Control ParametersFault 22.00 mA Range 4-20 mAlRange 4-20 mA Fault 22.00mA Output 2 control Output 2 setupHold feature setup Hold Disable featureAlarms Alarm 3 controlInterval timer Alarm Low Setpoint 0.01 pH Delay 0 secHysteresis 0.01 pH Delay 0 sec Relay Default NoneRelay default None Setpoint +07.00 pHTime period 30 sec URV 2.00 pHAlarm Fault Feed limit DisableTimeout 3600 sec Alarm 4 SetupTimer Disable Recovery 600 secOn time 120 sec Interval Timer Examples Diagnostics Diagnostics OffZero offset 60 mV Diagnostics Auto Calibration SetupAutocal Standard Stabilize pH 0.01 pH Stabilize time 10 secAuto Calibration Setup Standard BuffersContinuous Sensor Diagnostics Section Theory of OperationInterval Timer Typical set pointsSee .8 for instructions on chang- ing these setpoints Alarm Relays Time Proportional Control TPC Mode CodeNormal Mode Analog OutputsController Mode Priority Controller Mode Priority ChartCondition Definitions Action DefinitionsPID Control Mode Combinations PID Control CodePID Control Measurement and Set Point Feedback ControlProportional Mode Gain Proportional Gain Plus Integral ResetControl Loop Adjustment and Tuning Process Reaction Curve Method Process Reaction CurvePID Control Section Special Procedures and Features Password ProtectionLevel 1 3 Password Privileges Configuring Security SecurityCustom Curve Lock allSolution Temperature Compensation Temp coeff +.000Sensor iso 07.00 pH Operate iso +07.00 pH Section Troubleshooting Troubleshooting is easy as 1, 2, 3…Diagnostic Messages Diagnostic Messages Description of problemQuick Troubleshooting Guide Symptom ActionDiagnostic Variables Theoretical pH vs. Millivolt Values at 25C 77F Troubleshooting Guidelines Temperature Compensation CircuitTroubleshooting Procedure Ohms Ambient TemperaturePreamplifier Troubleshooting Procedure Preamp in a junction box FigureController preamp check Figure Junction Box Preamplifier Check Troubleshooting Guide No PowerCoated glass electrode Clean with soft cloth and clean water Password protected Replacement Parts Part Number DescriptionWarranty Repair NON-WARRANTY RepairSection Return of Material GeneralAppendix a ORP Configuration Quick Startup ORPTable A-1. ORP Settings List Item Choices ORP Settings User SettingsChoices ORP Settings User Settings Diagnostics SectionOutput setpoints Simulated testsStandardize 400 mV ORP CalibrationReturn of Materials Request Sensor or Circuit Board onlyWarranty Return of MaterialSpecifications subject to change without notice
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