Operating Instructions

Model GFC7000TA Carbon Dioxide Analyzer

6.8.1. Physical Range versus Analog Output Reporting Ranges

Functionally, the Gas Filter Correlation CO2 Analyzer has one hardware Physical Range that is capable of determining CO2 concentrations between 50 ppm and 2,000 ppm. This architecture improves reliability and accuracy by avoiding the need for extra, switchable, gain-amplification circuitry. Once properly calibrated, the analyzer’s front panel will accurately report concentrations along the entire span of its 50 ppm and 2,000 ppm physical range.

Because, most applications use only a small part of the analyzer’s physical range, the width of the Model GFC 7000TA’s physical range can create data resolution problems for most analog recording devices. For example, in an application where the expected concentration of CO2 is typically less than 500 ppm, the full scale of expected values is only 25% of the instrument’s 2,000 ppm physical range. Unmodified, the corresponding output signal would also be recorded across only 25% of the range of the recording device.

The GFC 7000TA solves this problem by allowing the user to select a scaled reporting range for the analog outputs that only includes that portion of the physical range relevant to the specific application. Only the reporting range of the analog outputs is scaled, the physical range of the analyzer and the readings displayed on the front panel remain unaltered.

6.8.2. Reporting Range Modes

The GFC 7000TA provides three analog output range modes to choose from.

∙Single range (SNGL) mode sets a single maximum range for the analog output. If single range is selected (See Section 6.78.3) both outputs are slaved together and will represent the same measurement span (e.g. 0-50 ppm), however their electronic signal levels may be configured for different ranges (e.g. 0-10 VDC vs. 0-.1 VDC – See Section 6.9.4.1).

Dual range (DUAL) allows the A1 and A2 outputs to be configured with different measurement spans (See Section 6.8.4) as well as separate electronic signal levels (See Section 6.9.4.1).

∙Auto range (AUTO) mode gives the analyzer to ability to output data via a low range and high range. When this mode is selected (See Section 6.8.5) the GFC 7000TA will automatically switch between the two ranges dynamically as the concentration value fluctuates.

Range status is also output via the external digital I/O status outputs (See Section 6.15.1.1).

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Teledyne gfc 7000ta operation manual Physical Range versus Analog Output Reporting Ranges, Reporting Range Modes
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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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