Ppm | Emerson Process Management 53eA specification

MODEL 54eA	SECTION 12.0
	CALIBRATION - OZONE

12.2ZEROING THE SENSOR

1.Place the sensor in the zero standard. Be sure no air bubbles are trapped against the membrane. The sensor

current will drop rapidly at first and then gradually reach a stable zero value. To monitor the sensor current, go to the main display. Press any key to obtain the main menu. Press the ê key once to highlight “Diagnostic vari-

ables.” Press Enter (F4). The sensor current is the second item in the display. Note the units: nA is nanoamps, μA is microamps. To return to the main display, press exit (F1) twice. Typical zero current for an ozone sensor is -10 to +10 nA.

A new sensor or a sensor in which the electrolyte solution has been replaced may require several hours (occa- sionally as long as overnight) to reach a minimum zero current. DO NOT START THE ZERO ROUTINE UNTIL THE SENSOR HAS BEEN IN ZERO SOLUTION FOR AT LEAST TWO HOURS.

Calibrate main sensor

Zero main sensor Adjust temperature

ExitEnter

0.0 ppm

Sensor must be in zero solution

Abort Cont

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

NOTE

If Hold was enabled in Section 5.6, the hold screen will appear. To activate hold, refer to Section 5.6, step 11.

Press the ê key once to move the cursor to “Zero main sensor.” Press Enter (F4).

3.The screen at left appears. Press Cont (F3). “Wait” flashes until the sensor is stabilized. Once the zero step is complete, the message “Sensor zero done” appears.

4.Press Exit (F1) three times to return to the main display.

NOTE

If Hold was activated during calibration, “Hold Mode Activated” will continue to flash in the main display. Return the sensor to normal and deactivate Hold. Refer to Section 5.6, step 11.

NOTE

During calibration, ERROR and WARNING messages may appear. If an ERROR message appears, press Exit (F1) to leave and return to the previous screen. If a WARNING message appears, press Cont (F3) to continue the calibration or press Abort (F1) to leave. Continuing the calibration after a warning message appears may cause substantial errors in the subsequent measurement. Refer to Section 16.8 for assis- tance.

71

Image 77

Emerson Process Management 53eA instruction manual Ppm

Contents

Amperometric Hart Analyzer/Controller Model 54eA Essential Instructions Page Model 54eA ANALYZER/CONTROLLER 11.0 10.012.0 13.0 Iii List of FiguresSection Title Features and Applications Section Specifications Power Specifications GeneralOutput Accuracy ± 0.05 mA Alarms Weight/Shipping Weight 5 lb/6 lb 2 kg/2.5 kg Specifications Free Chlorine Specifications OxygenSpecifications Total Chlorine Specifications Ozone 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 Section Display and Operation Alarm StatusGeneral Description Display 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 Output setpoints Alarm setpointsSimulated test Setpoint 1.000 ppm 4mA 0.000 ppm 20mA 10.00 ppm 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 Output 1 Setup Ctrl mode NormalOutput 1 Control Range 4-20 mA Dampen 0 sec Hold Last Value Using hold Hold setup Always configure the control parameters Before making Changing Alarm ParametersChanges in the alarm setup Alarm Control Settings Alarm 1 setup Alarm 1 controlAlarm 2 control Alarm Low Setpoint 0.000 ppm High Alarm Low Alarm Feed limit Disable Alarm FaultTimeout 3600 sec Feed limit timer setup Interval timer Alarm 4 setup Feed limit timerTimer Disable Timer Time activated Interval 24.0 hr Interval timer setup PH sensor Disable PH sensor EnableUsing the 499ACL-01 sensor PH comp Manual PH value 7.00 pH Autocal Standard Diagnostics OffGlass imp lo 20 MΩ Operate iso 7.00 pH Sensor iso 7.00 pH Temp coeff Temp comp Auto Temperature Compensation and Temperature UnitsTemp units C Temp comp Manual Temp units C Noise Reduction 60 Hz Main sensor cal Barometric Pressure Bar meas AutoBar units mm Hg Noise rejection Main sensor cal Lock program Lock configSecurity Lock all 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 Calibrate main sensor Zero main sensor Adjust temperatureStandardize Calibrating Barometric Pressure 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 Output trim Dual range calCalibrate low point Dual Slope Calibration 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 Troubleshooting When a Fault Message is Showing Section TroubleshootingFault message Explanation See Section Overview High input current Temperature error low or highCheck sensor zero PH low or high input voltage Problem See Section Troubleshooting When no Fault Message is Showing OxygenSense line open Failure factory and Failure eeprom Zero reading Is unstable Possible error warning during in-process calibrationZero current is too high Process readings are erratic Barometric pressure reading is too high or too lowReadings drift Sensor does not respond to changes in oxygen level 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 Problem Action Troubleshooting not Related to Measurement ProblemsSimulating Inputs Dissolved Oxygen Sensor Polarizing Voltage Resistance Expected current 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