Introduction

1.4 Operational Overview

The PCA 2 is powered by either its 4 internal batteries, or by an optional AC power adapter that operates from any convenient source of 100–

240 VAC, 50/60 Hz power. The type of batteries used can be either dispos- able alkaline or rechargeable NiMH. Note that rechargeable batteries can be charged inside the analyzer using the optional AC power adapter.

The PCA 2 is controlled by 11 front panel push buttons, while a graphical LCD is used to display all combustion and emission test data and analyzer parameters.

A probe and hose assembly, with an integral thermocouple and filter/wa- ter-trap connect to the bottom of the analyzer, thus providing the means of drawing in gas samples, and for measuring stack temperature and draft.

The PCA 2 is turned ON by pressing its red I/O button. A warm-up period of 60 seconds then begins, during which time the analyzer performs self diagnostics. At the end of the warm-up period, if no errors were detected the message “NO ERRORS DETECTED” is briefly displayed followed by the display of the Combustion Test HOLD screen. If errors were detected, the message “ERRORS DETECTED” is displayed along with a list of the errors. These errors must be corrected before proceeding with the combus- tion test.

Before starting a test be sure to select the fuel being burned. The default fuel selected is Natural Gas. Note that the name of the fuel being burned is indicated at the top of the display. To change the fuel: first, press the MENU (F2) button; next, select FUEL from the menu; then use the but- tons to highlight the fuel being burned; and finally, press the green ENT button to select the highlighted fuel.

To assure correct combustion-efficiency calculations, the analyzer must know the burner’s primary-air temperature. The analyzer normally uses its internal temperature sensor for the primary-air temperature value, but this method is only acceptable if the burner is using ambient room air. If the burner is drawing in cold outside air, we recommend that the optional T- AIR thermocouple be used. This thermocouple plugs into the bottom of the analyzer and is placed in the burner’s primary-air stream.

Begin the combustion test by first inserting the analyzer’s probe tube into the stack-gas stream of the appliance under test, and then pressing the RUN/HOLD button to display the Combustion Test RUN screen. The ana- lyzer will begin to continuously monitor the stack temperature, %O2 and

Instruction 24-9448

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Bacharach 24-9448 manual Operational Overview
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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.
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