Bacharach 24-9448 manual PCA 2 Disassembly, Removing Rear Case

Page 82

Maintenance

6.1 PCA 2 Disassembly

The following procedure describes how to disassemble the analyzer, while Figures 6-1 thru 6-4 illustrate how the analyzer is put together.

Tools Required:

•Medium Phillips Screwdriver Procedure:

1.Unplug all thermocouples from

bottom­ of analyzer.

2.Remove battery cover and then remove batteries.

TIP: In Step 3, if the sensors are not being replaced, leave the tubing connected to each sensor’s gas cap, being careful not to put unneces- sary strain on the tubing during the disassembly process.

Rear Case Screws (typical 4 places)

Release and then remove battery cover by pushing latch up

3. Pull off sensor retainer; and

 

 

 

Figure 6-1. Removing Rear Case

then unplug all sensors.

 

 

 

4.Lay analyzer face down on a padded work surface; and then using a medium Phillips screwdriver, remove the unit’s four rear-case screws.

5.Lift rear case from analyzer and set aside.

6.Unplug electrical connectors J8, J9, and J14 from printed circuit board.

CAUTION: In Step 7, note that there is tubing connected between the bottom hose-connector plate and the pressure sensor on the printed circuit board. Do not put unnecessary strain on this tubing during the disassembly process.

7.Carefully lift battery-and-pump chassis, along with the bottom hose- connector plate, from analyzer.

8.Lift printed circuit board from analyzer.

6-2

Instruction 24-9448

Page 81 Page 83
Image 82
Page 81 Page 83
Contents Portable Combustion Analyzer Warranty Contents Operation Maintenance Contents Introduction PCA 2 General Description Sales Combo & Model Configurations CalculationsCalculations Features & Benefits Operational Overview Probe Connections Gas, Pressure, T-Stack Connector DescriptionsAIR Primary Air Thermocouple PCA 2 Components USB Computer Interface Power AC Adapter4 ∆P Differential Pressure IrDA Printer InterfaceFront Panel Buttons Introduction Specifications PCA 2 Directly Measures and DisplaysNormal Operating Conditions Warm-Up Time Specifications Power Initial Setup ScopeInstalling or Replacing Batteries Connecting the Probe and Hose Assembly Using the AC Power AdapterConnecting the Probe and Hose Assembly to the PCA Operating Parameters Fuel SelectionTemperature Units Selection Temp Units MenuPressure Units Selection Pressure Units MenuPollution Units Selection Pollution Units MenuDate Setup Time Setup Menu11 O2 Reference Setup Print Pressure Selection O2 4.0 % CO 12 ppm EFF 82.6% Zoom-Display SelectionBattery Charger Selection Logging Selection Button SoundOperation Operating Tips Turning on the Analyzer and Warm Up Selecting a Fuel Menu F2 button80% Efficiency Fan Assist or Power Vented Sampling PointEFF Performing a Combustion TestList of Combustion Test Data Making a Draft / Pressure Measurement TIP The pressure units of measure is selected per SectionSaving Test Data Ending a Combustion Test Emptying the Water TrapTurning OFF the Analyzer & Purging Data Logging Turning on Data Logging Use the buttons to highlight YES turn logging onSetting the Logging Interval and Duration Starting the Data Logging Process Memory Ending the Data Logging ProcessRecalling Combustion Test Data Recalling Logged Test Data Clearing Memory Downloading Stored Data to a Computer PCA 2 Data Recovery Program Installation Operation Computer to PCA 2 Connection USB Device Driver Installation Computer to PCA 2 ConnectionAt the Hardware Installation window, click Continue Anyway Recovering Data Log / Data File button Additional­ locations that contain sensor calibration data Unplugging the USB Cable Importing Saved Data Into a Spreadsheet Downloaded Data Fields Printing Test Data Printer Alignment & Sample Printout Operation Starting a Calibration CalibrationSmart Sensors Benefits of Smart SensorsPressure Sensor Calibration ProcedureMaterial Required Pressure Sensor Calibration Equipment TS-Zero Procedure Stack CalibrationTS-Span Procedure TA-Zero Procedure Air CalibrationTA-Span Procedure CO-LO Sensor Calibration Turn OFF the regulator and remove the gas cylinder SO2 Sensor Calibration No Sensor Calibration NO2 Sensor Calibration CO-HI Sensor Calibration Gas Sensor Calibration Equipment Maintenance PCA 2 Disassembly Removing Rear CaseSensor Positions Tubing Connections Wiring Emptying the Water Trap Chamber Water Trap / Filter MaintenanceReplacing the Filter Element Smart Sensor Replacement Sensor Only Replacement Maintenance Nitric Oxide Sensor Battery Replacement Bias battery removed for Stabilization timeThermocouple Replacement Tools RequiredThermocouple Installation and Wiring Pump Replacement Parts & Tools RequiredCleaning the Probe Equipment RequiredMaintenance Instruction Troubleshooting Analyzer Repair Error SymbolsError Messages Displayed After Warm-Up Diagnostics and Status Screens Troubleshooting Parts & Service Replacement Parts DescriptionDescription Parts 1 Parts 2 Accessories Standard AccessoriesOptional Accessories Service Centers United StatesPage Headquarters Hunt Valley Circle, New Kensington, PA

24-9448 specifications

The Bacharach 24-9448 is a sophisticated instrument designed for detecting and measuring hazardous gases, particularly in environmental and industrial settings. Renowned for its accuracy and reliability, this portable gas analyzer serves a crucial role in ensuring safety and compliance in various applications, including HVAC, refrigeration, and environmental monitoring.

One of the standout features of the 24-9448 is its advanced sensor technology. The device utilizes electrochemical sensors that provide real-time readings of specific gas concentrations, including carbon monoxide, carbon dioxide, and other toxic gases. These sensors are designed to be sensitive and selective, ensuring they deliver precise measurements without interference from other substances in the environment. This is particularly important in industrial settings where multiple gases may be present.

The Bacharach 24-9448 also boasts a user-friendly interface with a clear display that makes it easy for operators to interpret results quickly. The unit features a simple menu navigation system, allowing users to access different functions without hassle. This design consideration enhances usability, especially in high-pressure situations where every second counts.

Portability is another key characteristic of the 24-9448. Weighing in at just a few pounds, it is easy to transport and operate in various locations, whether it be on a job site or in an environmental monitoring scenario. The robust housing is designed to withstand the rigors of fieldwork, ensuring longevity and durability despite challenging conditions.

Moreover, the device includes data logging capabilities, enabling users to store and later review measurements. This feature is essential for compliance documentation and for analyzing trends over time. Users can download data for further analysis, aiding in thorough reporting and decision-making processes.

In addition to its core capabilities, the Bacharach 24-9448 offers flexibility with adjustable calibration settings, accommodating different gas types and concentration ranges. This adaptability ensures it can meet the specific needs of diverse applications, making it a versatile tool in the field.

Overall, the Bacharach 24-9448 is an essential instrument for professionals in various sectors. Its combination of advanced sensor technology, user-friendly design, portability, and data logging capabilities solidifies its position as a leading choice for gas detection and measurement. Whether for routine checks or emergency responses, this analyzer provides the reliability that ensures safety in potentially hazardous environments.
Top Page Image Contents