PCA

Maintenance

6.7.2Replacing the Nitric Oxide Sensor Bias Battery

A single lithium battery, located on the Nitric Oxide printed circuit board (see Figure 6-2), applies a constant bias voltage to the Nitric Oxide sensor even while the instrument is turned off. This battery has a life expectancy of at least 2 years.

Replace the Nitric Oxide bias battery toward the end of its expected life.

Equipment Required:

•Bias Battery (See Section 8.0)

Procedure:

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

2.Remove old battery from its holder (see Figure 6-2).

3.Insert the new battery (positive side facing upwards) into its holder.

4.Reassemble the analyzer.

5.Before powering up and using the instrument, allow the Nitric Oxide sensor to stabilize as described below. Recalibration of the Nitric Oxide sensor is usually not required.

Depending on how long the Nitric Oxide sensor was without bias voltage, the time required for the sensor to completely stabilize varies from less than a minute to several days. Typical stabilization times are shown below. Generally, however, the sensor is sufficiently stable after 4 hours for measurement purposes.

Bias removed for. .

Stabilization time

 

 

Less than 15 min.

Less than 1 min.

Less than 1 hr.

Less than 5 min.

Less than 2 days

Less than 4 hr.

Greater than 2 days

Up to 2 days

Instruction 24-9351

6-9

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Bacharach 24-9351 manual Replacing the Nitric Oxide Sensor Bias Battery
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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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