Temp comp Auto, Temp units C | Emerson Process Management 53eA

MODEL 54eA	SECTION 5.0
	SOFTWARE CONFIGURATION

5.9TEMPERATURE COMPENSATION AND TEMPERATURE UNITS

1.Refer to Section 6.1 for a discussion of the ways in which temperature affects amperometric and pH meas- urements.

pH Temperature Noise rejection

ExitEnter

Temp comp : Auto

Temp units: °C

ExitEdit

Temp comp: Manual

Temp units: °C

Temperature : 25.0°C

ExitEdit

2.Press any key to enter the main menu. Move the cursor to "Program" and press Enter (F4).

3.Move the cursor to "Configure" and press Enter (F4).

4.Move the cursor to "Temperature" and press Enter (F4).

5.Use the é and ê keys to move through the list of items. To make a change press Edit (F4). Use the arrow keys to change settings to the desired value. Press Save (F4) to store changes.

Auto: In automatic temperature compensation, the controller meas- ures the temperature using an RTD (resistance temperature device) or 22kNTC thermistor in the sensor. The controller then uses the measured temperature to calculate membrane permeability correc- tions, solubility factors (for oxygen only), and the millivolt to pH con- version factor (for pH-corrected free chlorine only).

Manual: In manual temperature compensation, the controller uses the temperature entered by the user to calculate membrane perme- ability corrections, solubility factors (for oxygen only), and the millivolt to pH conversion factor. It does NOT use the actual process temper- ature. Do NOT use manual temperature compensation unless the dif- ference between the calibration and measurement temperatures is less than 2°C.

Manual temperature compensation is useful if the sensor RTD has failed and a replacement sensor is not available.

If Manual temperature compensation is selected, be sure to enter the desired temperature.

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Emerson Process Management 53eA instruction manual Temp comp Auto, Temp comp Manual Temp units C

Contents

Amperometric Hart Analyzer/Controller Model 54eA Essential Instructions Page Model 54eA ANALYZER/CONTROLLER 13.0 10.011.0 12.0 Iii List of FiguresSection Title Features and Applications Section Specifications Weight/Shipping Weight 5 lb/6 lb 2 kg/2.5 kg Specifications GeneralPower Output Accuracy ± 0.05 mA Alarms Specifications Ozone Specifications OxygenSpecifications Free Chlorine Specifications Total Chlorine 24 VDC 115/230 VAC, 50/60 Hz PowerOrdering Information Unpacking and Inspection Section InstallationInstallation Pipe mounting Pipe and Wall Mounting Dimensions Panel mounting Panel Mounting Dimensions General Section WiringPOWER, ALARM, and Output Wiring 454EPH02 General Sensor WiringWiring Model 499A oxygen, chlorine, and ozone sensors 4054eA01 4054eA03 4054eA02 4054eA04 4054eA07 Display Alarm StatusSection Display and Operation General Description Program Settings List Section Software Configuration Choices Factory Settings Configure Choices Factory Settings Temperature compensation Section Menu Tree for the 54eA Controller Main Menu Main Alarm 2 setpoint Alarm setpoints Ranging the Outputs MA 0.00 ppm 20 mA 20.00 ppm Output 1 12.00 mA Setpoint 1.000 ppm 4mA 0.000 ppm 20mA 10.00 ppm Alarm setpointsOutput setpoints Simulated test Test output Test alarm 1 OpenSimulated tests Display Configure Language English Display left Display right Out Display contrast Timeout OnTemp units C Output 1 mA Output 2 mA Output Measurement OutputsOutput 1 control Range 4-20 mA Dampen 0 sec Hold Last Value Ctrl mode NormalOutput 1 Setup Output 1 Control Using hold Hold setup Alarm Control Settings Changing Alarm ParametersAlways configure the control parameters Before making Changes in the alarm setup Alarm Low Setpoint 0.000 ppm Alarm 1 controlAlarm 1 setup Alarm 2 control High Alarm Low Alarm Feed limit timer setup Alarm FaultFeed limit Disable Timeout 3600 sec Interval timer setup Alarm 4 setup Feed limit timerInterval timer Timer Disable Timer Time activated Interval 24.0 hr PH comp Manual PH value 7.00 pH PH sensor EnablePH sensor Disable Using the 499ACL-01 sensor Autocal Standard Diagnostics OffGlass imp lo 20 MΩ Operate iso 7.00 pH Sensor iso 7.00 pH Temp coeff Temp comp Manual Temp units C Temperature Compensation and Temperature UnitsTemp comp Auto Temp units C Noise Reduction 60 Hz Main sensor cal Barometric Pressure Bar meas AutoBar units mm Hg Lock all Lock program Lock configNoise rejection Main sensor cal Security Action Definitions Controller Mode PriorityCondition Definitions Introduction Section Calibration Temperature Temperature Calibration Adjust temp + 025.1 C Dissolved Oxygen Concentration Section Calibration Dissolved Oxygen Zeroing the Sensor Sensor must be in zero solution Calibrating the Sensor in AIR Stabilizing . . . Wait Section Calibrating the Sensor Against a Standard Instrument Calibrate 8.32 ppm Calibrating Barometric Pressure Zero main sensor Adjust temperatureCalibrate main sensor Standardize Sensor Current as a Function of Free Chlorine Concentration Section Calibration Free Chlorine 499ACL-01 Calibrate main sensor Full Scale Calibration Calibrate 1.100 ppm Dual Slope Calibration Dual range calOutput trim Calibrate low point Calibrate high point Low point 2.000 ppm Introduction Section Calibration Free Chlorine 498CL-01 Ppm 100ppm 000 ppm Section Calibration Free Chlorine 498CL-01 Section Calibration Total Chlorine This page intentionally left blank Sensor Current as a Function of Monochloramine Concentration Section Calibration Monochloramine Ppm 100ppm Sensor Current as a Function of Ozone Concentration Section Calibration Ozone Ppm 100ppm PH at 25C Standards Nominal pH Section Automatic TWO-POINT Calibration Autocal buffer 10.02 pH Manual TWO-POINT Calibration Calibrate pointPt 04.00pH 25C Pt 4.00pH 25.0C 10.01 pH Pt calibration Standardize pH pH slope Standardization ONE-POINT Calibration PH slope 60.00 mV/pH Trimming the Outputs Section Calibration Current Outputs PID Control Code Section PID and TPC Control Process Reaction Curve Method Proportional Gain Plus Integral ResetControl Loop Adjustment and Tuning Process Reaction Curve Section Time Proportional Control TPC Mode Code Overview Section TroubleshootingTroubleshooting When a Fault Message is Showing Fault message Explanation See Section PH low or high input voltage Temperature error low or highHigh input current Check sensor zero Failure factory and Failure eeprom Troubleshooting When no Fault Message is Showing OxygenProblem See Section Sense line open Zero reading Is unstable Possible error warning during in-process calibrationZero current is too high Sensor does not respond to changes in oxygen level Barometric pressure reading is too high or too lowProcess readings are erratic Readings drift Zero current is unstable Problem Sensor can be calibrated, but the current is too low Chlorine readings are too low Sensor does not respond to changes in chlorine level Problem See Section Sensor does not respond to changes in monochloramine level Readings are too low Troubleshooting When no Fault Message is Showing Ozone Ozone readings are too low Sensor does not respond to changes in ozone level Troubleshooting When no Fault Message is Showing pH 100 Controller will not accept manual slopeSensor does not respond to known pH changes 101 Process pH readings are noisy Sensor Polarizing Voltage Resistance Expected current Troubleshooting not Related to Measurement ProblemsProblem Action Simulating Inputs Dissolved Oxygen Simulate Chlorine and Ozone 103 Simulating Inputs Other Amperometric Measurements 104 Simulating pH input when the preamplifier is in the sensorVoltage mV PH at 25C 105 Simulating TemperatureSimulating temperature 106 Measuring Reference Voltage Replacement Parts Part Number Description Section Maintenance General Section Return of Material Warranty Specifications subject to change without notice