Bacharach 24-9351 manual Replacing the Oxygen Sensor

Page 67

PCA

Maintenance

6.6 Replacing the Oxygen Sensor

Replace the Oxygen Sensor when it has expired (when the analyzer’s automatic O2 calibration fails and the unit displays the message “O2- Sensor Error”).

NOTE: A "O2-SENSOR ERROR" displayed in the Sensor Status Screen does not necessarily mean that the sensor has expired. Before replacing the sensor, refer to Section 7.2 for other possible causes of the error.

Equipment Required:

•Small Flat Blade Screw Driver

•Oxygen Sensor (Refer to Section 8.0)

Procedure:

1.Remove the analyzer’s rear case and lay it aside (refer to Section 6.2).

2.Remove the Oxygen Sensor connector from the printed circuit board; then carefully pull off the two wires connected to the pins of the sensor (see Figure 6-2).

3.Push in and turn the sensor counterclockwise (watching the notch on top) until it stops; then pull the sensor out of its housing.

4.To install a new sensor, push the sensor into the housing and turn it clockwise until it locks in place.

5.Connect the black (–) and red (+) wires, which were removed from the old sensor in Step 2, to the pins of the new sensor. Be sure to observe polarity as marked on the sensor.

6.Reinstall the sensor connector onto the printed circuit board.

7.Reassemble the analyzer. Then allow the sensor to be connected in the circuit for at least 1 hour before continuing.

8.Place the analyzer in an area of fresh air and turn it ON. After the warmup cycle, observe that the Sensor Status Screen should not show an O2 sensor error.

Instruction 24-9351

6-7

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Contents Portable Combustion Analyzer PCA Register Your Warranty by Visiting Contents Troubleshooting Portable Combustion Analyzer IntroductionLPG Displayed DataSensor Configurations PCA 35 & 65 with Draft, CO & NX Advanced PCA Model FeaturesPrintout Capability Technical Characteristics Normal Operating Conditions Display Agency Approvals Scope PowerUsing the Optional Power Supply Connecting the ProbeConnecting the Probe to the Analyzer Function Parameters To Change Refer to Configuring the PCAKey Pad Functions OperationSampling Hole Location Sampling Hole LocationAnalyzer Turn On and Warm Up Combustion TestInstalling Probe in the Stack Performing a Combustion Test Purging CO Sensor Turning Off the Analyzer and Purging the CO SensorHOT Spot Differential Pressure MeasurementDraft 25 MBFront Panel Key Functions Warmup ScreenBACHARACH, INC PCA Warmup yyBACHARACH, INC. PCA Warmup 0 z Sensor Status ScreenPCA models 10-25 PCA models 30, 35, 60 Combustion Test Screen«NATGAS Fuel Koks OIL NO.2 LEG OIL NO.6 LPG Coal Fuel Selection ScreenDraft Screens ‘Advanced’ PCA Screen Memory Directory Screen‘Standard’ PCA Screen M9 Memory Empty Clear MemoryFor ‘Advanced’ PCA Models 40, 45, 50, 55, 60 Memory to PC ScreenMemory to PC «TRANSMIT Data Clear Memory Clear Memory COMMA-DELIMITED Fields Setup ID Setup ScreensFront Panel Key Functions for the Initial ID Setup Screen PCA Setup Temperature Unit «C F Temperature Setup ScreenSetup Draft Unit «MB Draft Unit Setup ScreenLanguage Setup Screen Setup Display «CO NX CU NU Display Mode Setup ScreenFor PCA Models 30, 35, 60 «TIME 154506 Date Time/Date Setup ScreenSetup «IR HP Printer IR Irda Printer Setup ScreenRS232 Maintenance «PASSWORD Maintenance Password ScreenMaintenance «CALIBRATION User Name Maintenance ScreenUser Name Line User Name ScreensUser Name «LINE 1 Line 2 Line Front Panel Key Functions for Initial User Name Screen20.0 190 Saving Test DataFront Panel Key Functions for Individual User Name Screens HLD190 C «P When using an infrared printerPrinting Test Data 12 HLDRS-232Connector When using a serial printerClear Memory Screen Resetting the MicroprocessorPCA Sensor Check CalibrationCalibration Fixtures ProcedureMaterial Required «TA-ZERO Calibrate TA-SPAN NX TL-ZERO CO TL-SPAN Draft Calibrate Menu ScreenCalibrate TA-ZERO Measured 3.0C Calibrate TA-ZeroApplied 0000.0C Calibrate TA-SPAN Measured 295.0C Calibrate TA-SpanApplied 0300.0C Calibrate TL-ZERO Measured 3.0C Calibrate TL-ZeroCalibrate TL-SPAN Measured 102.0C Calibrate TL-SpanApplied 0100.0C Applied Calibrate NXCalibrate NX Measured PPM492 Calibrate COFor PCA Models 20, 25, 30, 35, 50, 55, 60 Material Required Calibrate CO MeasuredCalibrate H2 Measured Typical Test Gas CO/H2 Screen During Calibration ProcedureTypical Calibrate H2 Screen During Calibration Procedure Test GAS CO/H2 CO-VALUE Enter CO-VALUECalibrate Draft Measured Applied Typical Calibrate Draft Screen During Calibration ProcedureCalibrate Draft For PCA Models 15, 25, 35, 45, 55 Material RequiredPCA Routine Maintenance MaintenanceDisassembling the Analyzer DisassemblyRear View of the PCB and Sensors Equipment Required Cleaning the ProbeDrain the water condensate after every use Water Trap/Filter Assembly MaintenanceReplacing the Particulate Filter Replacing the Oxygen Sensor Replacing the Nitric Oxide Sensor Filter Replacing the Nitric Oxide SensorReplacing the Nitric Oxide Sensor Bias Battery For PCA Models 20, 25, 30, 35, 50, 55, 60 Replacing the Carbon Monoxide SensorReplacing the Carbon Monoxide Sensor Filter Replacing the Pump Assembly Analyzer Repair TroubleshootingNX Sensor Error Error CodesTroubleshooting Guide Troubleshooting GuideTA-SENSOR or TL-SENSOR Troubleshooting Guide Troubleshooting Guide Replacement Parts Parts & ServiceStandard Accessories AccessoriesReplacement Parts RED Black Replacement Parts Indiana Sales/Service CentersAppendix a ENG DEU DAN FRA ESP English German Danish French SpanishDutch Swedish Finnish PolishDraft Memory Screen Polish Italian Dutch Swedish Finnish Time/Date Setup Screen Aika Calibrate TL-Span Screen Immettere Valore CO Geef DE Waarde Enter CO-VALUE PCA Appendix B Printout Translations FRA ESP POL ITA NED SVE FIN PCA World Headquarters Hunt Valley Circle, New Kensington, PA

24-9351 specifications

The Bacharach 24-9351 is a cutting-edge combustion analyzer designed for professionals in the HVAC and building maintenance industries. Known for its reliability and precision, this instrument plays a crucial role in ensuring that heating systems operate safely and efficiently.

One of the primary features of the Bacharach 24-9351 is its ability to accurately measure various combustion gases, including carbon monoxide, carbon dioxide, and oxygen levels. This multi-gas measurement capability allows technicians to diagnose combustion problems quickly and effectively, leading to improved system performance and enhanced safety for end users.

The analyzer is equipped with a high-resolution display that provides real-time readings, making it easy for technicians to analyze data on-site. Additionally, the intuitive interface is designed for ease of use, allowing users to navigate through functions and settings without extensive training.

Durability is a key characteristic of the Bacharach 24-9351. It is built to withstand the rigors of fieldwork, with a robust housing that protects it from dust, moisture, and other challenging environmental conditions. This durability is complemented by long battery life, ensuring that users can rely on the device for extended periods without interruption.

In terms of technologies, the Bacharach 24-9351 utilizes advanced sensors that ensure accuracy and repeatability in measurements. Its innovative combustion efficiency calculation provides users with essential insights into the efficiency of their heating systems, allowing for timely adjustments and tuning. This capability not only optimizes performance but also contributes to energy savings and lower operational costs.

Another notable feature is the data logging function, which allows users to store and retrieve measurement data for later analysis. This is particularly beneficial for monitoring system performance over time and making informed decisions regarding maintenance and repairs.

In summary, the Bacharach 24-9351 is an essential tool for HVAC professionals, combining accurate gas measurement, user-friendly design, and robust durability. Its advanced technologies and features make it a valuable asset for ensuring safe, efficient, and effective combustion analysis in various applications. Whether used for routine maintenance or troubleshooting, this analyzer stands out for its reliability and precision.
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