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Emerson DO-03, DO-04 AIR Blast Sensor Washer, Replacement Parts Location Part Number Description

Models: 51-DO-04 51-DO-03 DO-04 DO-03

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MODEL DO-03/04	SECTION 9.0
	MAINTENANCE

9.4 AIR BLAST SENSOR WASHER

The air blast sensor washer needs little routine maintenance. Replace the two large O-rings on the base of the washer head and the sensor sealing O-ring if they become cut or dirty or if there is evidence of water leaking into the washer head. The three O-rings are available as a kit (PN 24053-00).

See Figure 9-2 for replacement parts.

FIGURE 9-2. Replacement Parts

Location

Part Number

Description

124049-00 Sensor washer head

2	note	Screw, 1/4 x 20 x 0.375 SFH

3	24054-00	O-ring kit, quantity 3 with barium lube

4	24055-00	Quick disconnect and check valve assembly

5	33866-00	Air hose, 25 ft, 1/4-inch ID

Screw size is for information only. Screw cannot be purchased from Rosemount.

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Emerson 51-DO-03, 51-DO-04 AIR Blast Sensor Washer, Replacement Parts Location Part Number Description

Contents

Model DO-03/04 Dissolved Oxygen Measurement System with Air Blast Cleaner Essential Instructions Page Section Title Model DO-03/04 Measuring System 11.0 List of Tables10.0 Iii List of FiguresSection Title Features and Benefits Section Specifications Output Accuracy ± 0.05 mA PowerRepeatability ±0.05 ppm 25C RFI/EMI EN-61326 Materials of Construction Maximum continuous pressure 50 psig 446 kPa absMaximum distance between compressor and sensor Analyzer dimensions Enclosure dimensions 9240048-00 Tag, stainless steel, specify marking Power required selectionDescription Model or part number Description Section InstallationInstallation Unpacking and Inspection Assembling the pipe and pipe clamp Installing the air compressor enclosureInstalling the handrail mounting assembly Assembling the washer head and pipe boom Installing the sensor in the washer head assemblyAttaching the pipe boom to the handrail mounting assembly Attaching the air compressor enclosure to the handrail Installing the sensor in the washer head assembly General Section WiringPOWER, ALARM, and Output Wiring 454EPH02 Section Section General Sensor WiringWiring the Oxygen Sensor KEY Functions and Control Alarm StatusSection Display and Operation Display Menu Tree for the 54eA Analyzer Section Software Configuration On following Main Menu Calibrate See Diagnostic Variable see Choices Factory Settings Setpoints Program Settings List Choices Factory Settings Configure Choices Factory Settings Alarm 3 setpoint Alarm setpointsAlarm 1 setpoint Alarm 2 setpoint Ranging the Outputs MA 0.00 ppm 20 mA 20.00 ppm Output 1 12.00 mA Test output Test alarm 1 OpenSimulated tests Meas units ppm Outputs AlarmsDisplay Measure Oxygen 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 Output 1 SetupOutput 1 Control Changing Alarm Parameters ConfigureAlarm 1 control Alarm 1 setup Alarm 2 control Activate Process Alarm 1 controlAlarm 1 setup Alarm Low Alarm 4 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 Temp comp Manual Temp units C Temperature Compensation and Temperature UnitsTemp comp Auto Temp units C Noise Reduction 60 Hz Barometric Pressure Bar meas AutoBar units mm Hg Salinity 0.0 o/oo Main sensor cal Security Noise rejection Main sensor cal Security Action Definitions Analyzer Mode PriorityCondition Definitions Introduction Section Calibration Temperature Temperature Calibration Adjust temp + 025.1 C Sensor Current as a Function 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 Trimming the Outputs Section Calibration Current Outputs Replacing electrolyte solution and membrane Section MaintenanceReplacement Parts Cleaning the membrane Section Spare Parts Power Fuse AIR Blast Sensor Washer Replacement Parts Location Part Number Description Overview Section TroubleshootingTroubleshooting When a Fault Message is Showing Fault message Explanation See Section Sense line open Temperature error low or highHigh input current Check sensor zero Zero current is too high Troubleshooting When no Fault Message is Showing OxygenProblem See Section Barometric pressure reading is too high or too low Possible error warning during in-process calibrationZero reading Is unstable Oxygen readings are too low Process readings are erraticReadings drift Sensor does not respond to changes in oxygen level Sensor Polarizing Voltage Resistance Expected current Troubleshooting not Related to Measurement ProblemsProblem Action Simulating Inputs Dissolved Oxygen Simulating temperature Simulating Temperature General Section Return of Material Sensor or Circuit Board only Return of Materials Request Warranty Specifications subject to change without notice