Theory of Operation

Model GFC7000TA Carbon Dioxide Analyzer

9.5. Software Operation

The Model GFC 7000TA Gas Filter Correlation Carbon Dioxide Analyzer has a high performance, VortexX86-based microcomputer running Windows CE. Inside Windows CE, special software developed by Teledyne Instruments interprets user commands via the various interfaces, performs procedures and tasks, stores data in the CPU’s various memory devices and calculates the concentration of the sample gas.

Windows CE

 

 

API FIRMWARE

 

 

Memory Handling

Analyzer Operations

 

Calibration Procedures

PC/104 BUS

DAS Records

Configuration Procedures

Calibration Data

Autonomic Systems

 

System Status Data

 

Diagnostic Routines

 

 

 

 

 

ANALYZER

 

 

HARDWARE

 

Interface Handling

 

Measurement

Sensor input Data

 

Touchscreen/Display

 

Algorithm

 

Analog Output Data

 

 

RS232 & RS485

PC/104 BUS

 

External Digital I/O

 

Linearization Table

 

 

Figure 9-18: Basic Software Operation

9.5.1. Adaptive Filter

The GFC 7000TA software processes the CO2 MEAS and CO2 REF signals, after they are digitized by the motherboard, through an adaptive filter built into the software. Unlike other analyzers that average the output signal over a fixed time period, the GFC 7000TA averages over a set number of samples, where each sample is 0.2 seconds. This is technique is known as boxcar averaging. During operation, the software automatically switches between two different length filters based on the conditions at hand. Once triggered, the short filter remains engaged for a fixed time period to prevent chattering.

During conditions of constant or nearly constant concentration the software, by default, computes an average of the last 750 samples, or approximately 150 seconds. This provides the calculation portion of the software with smooth stable readings. If a rapid change in concentration is detected the filter

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Teledyne gfc 7000ta operation manual Software Operation, Adaptive Filter, Windows CE, API Firmware, Interface Handling
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gfc 7000ta specifications

The Teledyne GFC 7000TA is a cutting-edge, high-performance gas flow calibrator designed for both laboratory and field applications. This instrument is renowned for its accuracy, versatility, and reliability, making it an ideal choice for various industries, including aerospace, environmental monitoring, and manufacturing.

One of the standout features of the GFC 7000TA is its advanced measurement technology. It utilizes state-of-the-art thermal mass flow meters, which allow for precise fluid measurement across a wide range of flow rates. This technology ensures highly accurate readings, which are essential for applications requiring stringent compliance with regulatory standards.

The GFC 7000TA is capable of accommodating various types of gases, making it particularly versatile. Users can calibrate flow for gases such as air, nitrogen, or carbon dioxide, providing flexibility in a multitude of applications. The device also supports dual-channel capabilities, allowing simultaneous measurement and calibration of two different gas types, enhancing productivity and efficiency in processes.

Another notable characteristic of the GFC 7000TA is its user-friendly interface. Equipped with a high-resolution touchscreen display, the device offers intuitive navigation and data visualization. Users can easily set parameters, view real-time measurements, and generate printed reports. This interface reduces the learning curve for new operators, allowing organizations to implement the GFC 7000TA with minimal training.

In addition to its advanced measuring capabilities, the GFC 7000TA features a robust design for durability in harsh environments. The instrument is compliant with various international standards, ensuring its reliability and performance in various conditions. Its portable form factor makes it convenient for fieldwork, while the rugged construction provides peace of mind for users working in demanding settings.

The GFC 7000TA also incorporates modern connectivity options. With built-in USB and Ethernet ports, users can easily integrate the device into their existing systems for data logging and remote monitoring. This connectivity feature enables real-time data access and enhances the potential for analysis and optimization of gas flow systems.

In summary, the Teledyne GFC 7000TA is a high-performance gas flow calibrator characterized by its advanced thermal mass flow measurement technology, versatility in accommodating various gases, user-friendly interface, and robust design. With its modern connectivity features, this instrument stands out as a vital tool for professionals seeking precision and reliability in gas flow applications.
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