Emerson 51-DO-04, 51-DO-03 Section Wiring, General, POWER, ALARM, and Output Wiring

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MODEL DO-03/04

SECTION 3.0

 

WIRING

SECTION 3.0

WIRING

3.1 GENERAL

WARNING

Electrical installation must conform to the National Electrical Code, all state and local codes, and all plant codes and standards for electrical equipment. Electrical installation and wiring must be done by qualified personnel.

The five holes in the bottom of the Model 54eA enclosure accept 1/2-in. (PG-13.5) strain relief connectors or con- duit fittings. The rear openings are for power and alarm relay wiring. The left front opening is for sensor wiring and the right front opening is for analog output wiring. Seal unused openings with conduit plugs.

3.2 POWER, ALARM, AND OUTPUT WIRING

Figure 3-1 shows the power, relay, and current output terminals. For access to the terminals, loosen the screw hold- ing the protective cover in place and remove the cover. Make power and alarm connections on TB3. Make analog output wiring connections on TB2.

DANGER

Live voltages may be present.

Will cause severe injury or death.

Alarm contacts are dry (i.e., not powered) and are normally open. Refer to Section 1.0 for relay specifications.

Refer to Figure 3-2 or 3-3 for details on how to wire the Model ABSH (air blast system) to the 54eA analyzer. Figure 3-2 is for Model DO-03 (115 Vac 60 Hz). Figure 3-3 is for Model DO-04 (220 Vac 50 Hz).

NOTE

The 54eA analyzer has four alarm relays. Relays 1, 2, or 3 are normally open (NO) and can be used to operate the air blast cleaner. The wiring diagrams show alarm relay 3 being used. The relay used for the air blast cleaner MUST be configured as an interval timer. See Section 5.6 for programming details.

For best EMI/RFI protection, shield the output cable and enclose it in an earth-grounded, rigid, metal conduit. Connect the outer shield of the output cable to the earth ground connection on TB2 (see Figure 3-1).

Keep sensor and output signal wiring separate from power wiring. Do no run sensor and power cables in the same conduit or close together in a cable tray.

AC wiring must be 14 gauge or greater. Be sure to connect earth ground from the power cable to the nearby ground lug. A good earth ground is necessary for proper operation of the analyzer. Provide a switch or breaker to disconnect the analyzer from the main power supply. Install the switch or breaker near the analyzer and label it as the disconnecting device.

WARNING: RISK OF ELECTRICAL SHOCK

AC connections and grounding must comply with UL 508 or local electrical code. DO NOT apply power to the analyzer until all electrical connections are verified and secure.

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Contents Dissolved Oxygen Measurement System with Air Blast Cleaner Model DO-03/04Essential Instructions Page Model DO-03/04 Measuring System Section TitleList of Tables 10.011.0 List of Figures Section TitleIii Section Specifications Features and BenefitsRFI/EMI EN-61326 PowerRepeatability ±0.05 ppm 25C Output Accuracy ± 0.05 mAMaximum continuous pressure 50 psig 446 kPa abs Maximum distance between compressor and sensorMaterials of Construction Analyzer dimensions Enclosure dimensions Power required selection Description9240048-00 Tag, stainless steel, specify marking Unpacking and Inspection Section InstallationInstallation Model or part number DescriptionInstalling the air compressor enclosure Installing the handrail mounting assemblyAssembling the pipe and pipe clamp Installing the sensor in the washer head assembly Attaching the pipe boom to the handrail mounting assemblyAssembling the washer head and pipe boom Attaching the air compressor enclosure to the handrail Installing the sensor in the washer head assembly Section Wiring POWER, ALARM, and Output WiringGeneral 454EPH02 Section Section Sensor Wiring Wiring the Oxygen SensorGeneral Display Alarm StatusSection Display and Operation KEY Functions and ControlSection Software Configuration Menu Tree for the 54eA AnalyzerOn following Main Menu Calibrate See Diagnostic Variable see Program Settings List Choices Factory Settings SetpointsChoices Factory Settings Configure Choices Factory Settings Alarm 2 setpoint Alarm setpointsAlarm 1 setpoint Alarm 3 setpointMA 0.00 ppm 20 mA 20.00 ppm Output 1 12.00 mA Ranging the OutputsTest alarm 1 Open Simulated testsTest output Measure Oxygen Outputs AlarmsDisplay Meas units ppmDisplay contrast Timeout On Temp units C Output 1 mA Output 2 mALanguage English Display left Display right Out Outputs Output 1 controlOutput Measurement Output 1 Setup Output 1 ControlRange 4-20 mA Dampen 0 sec Hold Last Value Alarm 1 setup Alarm 2 control ConfigureAlarm 1 control Changing Alarm ParametersAlarm Low Alarm 1 controlAlarm 1 setup Activate ProcessTimeout 3600 sec Alarm FaultFeed limit Disable Alarm 4 setupTimer Disable Timer Time activated Interval 24.0 hr Alarm 4 setup Feed limit timerInterval timer Interval timer setupTemp units C Temperature Compensation and Temperature UnitsTemp comp Auto Temp comp Manual Temp units C60 Hz Noise ReductionBar meas Auto Bar units mm HgBarometric Pressure Main sensor cal Salinity 0.0 o/ooNoise rejection Main sensor cal Security SecurityAnalyzer Mode Priority Condition DefinitionsAction Definitions Section Calibration Temperature IntroductionAdjust temp + 025.1 C Temperature CalibrationSection Calibration Dissolved Oxygen Sensor Current as a Function Dissolved Oxygen ConcentrationSensor must be in zero solution Zeroing the SensorStabilizing . . . Wait Calibrating the Sensor in AIRSection Calibrate 8.32 ppm Calibrating the Sensor Against a Standard InstrumentStandardize Zero main sensor Adjust temperatureCalibrate main sensor Calibrating Barometric PressureSection Calibration Current Outputs Trimming the OutputsCleaning the membrane Section MaintenanceReplacement Parts Replacing electrolyte solution and membraneSection Power Fuse Spare PartsReplacement Parts Location Part Number Description AIR Blast Sensor WasherFault message Explanation See Section Section TroubleshootingTroubleshooting When a Fault Message is Showing OverviewCheck sensor zero Temperature error low or highHigh input current Sense line openTroubleshooting When no Fault Message is Showing Oxygen Problem See SectionZero current is too high Possible error warning during in-process calibration Zero reading Is unstableBarometric pressure reading is too high or too low Sensor does not respond to changes in oxygen level Process readings are erraticReadings drift Oxygen readings are too lowSimulating Inputs Dissolved Oxygen Troubleshooting not Related to Measurement ProblemsProblem Action Sensor Polarizing Voltage Resistance Expected currentSimulating Temperature Simulating temperatureSection Return of Material GeneralReturn of Materials Request Sensor or Circuit Board onlyWarranty Specifications subject to change without notice
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