Emerson 6081-P instruction manual Purpose

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MODEL 6081-P pH/ORP	SECTION 8.0
	PROGRAMMING THE TRANSMITTER

8.4CHOOSING TEMPERATURE UNITS AND MANUAL OR AUTOMATIC TEMPERATURE COMPENSATION

8.4.1 Purpose

This section describes how to do the following:

1.Choose temperature display units (°C or °F).

2.Choose automatic or manual temperature compensation.

3.Enter a temperature for manual temperature compensation

8.4.2 Definitions

1.AUTOMATIC TEMPERATURE COMPENSATION. The analyzer uses a temperature-dependent factor to con- vert measured cell voltage to pH. In automatic temperature compensation, the analyzer measures the tem- perature and automatically calculates the correct conversion factor. For maximum accuracy, use automatic temperature compensation.

2.MANUAL TEMPERATURE COMPENSATION. In manual temperature compensation, the analyzer converts measured voltage to pH using the temperature entered by the user. It does not use the actual process tem- perature. Do NOT use manual temperature compensation unless the process temperature varies no more than about ±2°C or the pH is between 6 and 8. Manual temperature compensation is useful if the sensor tempera- ture element has failed and a replacement sensor is not available. If manual temperature correction is selected, the display will not show the measured temperature. It will show the manually entered value.

8.4.3 Procedure: Temperature.

To choose a menu item, move the cursor to the item and press ENTER.

To store a number or setting, press ENTER.

1.Press MENU. The main menu screen appears. Choose Program.

2.Choose Temp.

3.Choose °C/F to change temperature units. Choose Live/Manual to turn on (Live) or turn off (Manual) auto- matic temperature compensation.

a.If °C/F is chosen, select °C or °F in the next screen.

b.If Live/Manual is chosen, select Live or Manual in the next screen.

c.If Manual is chosen, enter the temperature in the next screen. The temperature entered in this step will be used in all subsequent measurements, no matter what the process temperature is.

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Contents Model 6081-P Shipping considerations for wireless products Power Modules Essential InstructionsAbout This Document Quick Start Guide Hart PollAddress Menu Tree for Model 6081 pH Wireless Transmitter Model 6081-P pH/ORP Table of Contents CONT’D Iii List of FiguresNumber Title This page left blank intentionally Specifications General Section Description and SpecificationsFeatures and Applications Measurement update rate 1/sec. to 1/10 min Specifications WirelessFunctional Specifications PH Range 0 toFCC and IC Hart CommunicationsTelecommunication Compliance Asset Management Solutions Unpacking and Inspection Section InstallationConsiderations Reference Electrode Impedance PRE-INSTALLATION SetupTemperature Element Preamplifier LocationSection Mounting on a Flat Surface Pipe Mounting Power Module Installation Installing the Power ModuleSection This page left blank intentionally General Information Section Sensor WiringSensor Wiring This page left blank intentionally Section Intrinsically Safe Installation This page left blank intentionallyThis page left blank intentionally Network Communications Device Network ConfigurationSection Commissioning Verify Operation Screen a Screen C Section Display and OperationDisplay Screen BKeypad Information Screen MessagesSecurity How the Security Code WorksThis page left blank intentionally Section Operation with Model Making Hart related settings from the keypad Off-line and On-line OperationGeneral Changing START-UP SettingsSection Programming the Transmitter Definitions Choosing and Configuring the Analytical MeasurementPurpose Choose Measurement Choose Soln Temp Corr or Sensor IsoptntlPurpose Choose Calib or Config Setting a Security CodeProcedure Setting a security code Procedure Installing default settings Making Hart Related SettingsResetting Factory Calibration and Factory Default Settings Choose ResetTransmitterChoose Default Display Selecting a Default Screen and Screen ContrastProcedure Choosing a display screen Procedure Changing screen contrastChoosing a Display Timeout Procedure Programming the display timeoutIntroduction Section Calibration TemperatureCalibrating Temperature Procedure Section Calibration pH and ORPCalibration Slope and Offset Procedure Auto Buffer Calibration Choose BufferCalProcedure Manual TWO-POINT Buffer Calibration Procedure Standardization Choose StandardizeProcedure Entering a Known Slope Value Preparation of ORP standard solutions ORP CalibrationThis page left blank intentionally Overview Section MaintenanceTransmitter Maintenance Frequency of Cleaning Cleaning ProceduresChecking the Reference Electrode Rejuvenating Reference ElectrodesGeneral ORP Sensor MaintenanceCalibration Calibration FrequencyPower Module Replacement Shipping Considerations Handling ConsiderationsEnvironmental Considerations Section Return of Material GeneralThis page left blank intentionally Warranty Specifications subject to change without notice

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