Theory of Operation

Model GFC7000TA Carbon Dioxide Analyzer

9.2.3. Purge Gas Pressure Control

In order to ensure that all of the ambient CO2 is purged from the GFC Wheel housing an adequate supply of dried air, scrubbed of CO2 must be supplied to the PURGE AIR inlet at the back of the instrument.

∙The minimum gas pressure of the source of purge air should be 7.5 psig.

∙If the source of the purge air is shared by a Teledyne TAI’s T700 (as shown in figure 3-7) the minimum gas pressure should be 25 psig and should not exceed 35 psig.

In order to maintain the proper pressure differential between the inside of the GFC wheel housing and ambient air, the GFC 7000TA design includes a manually adjustable pressure regulator (see Figure 3-5 and Figure 3-6 for Purge Gas Pressure Regulator) that maintains the pressure of the purge air feed at 7.5 psig.

9.2.4. Particulate Filter

The Model GFC 7000TA Analyzer comes equipped with a 47 mm diameter, Teflon, particulate filter with a 5 micron pore size. The filter is accessible through the front panel, which folds down to allow access, and should be changed according to the suggested maintenance schedule described in Table 9-1.

9.2.5. Pneumatic Sensors

9.2.5.1. Sample Pressure Sensor

An absolute value pressure transducer plumbed to the outlet of the sample chamber is used to measure sample pressure. The output of the sensor is used to compensate the concentration measurement for changes in air pressure. This sensor is mounted to a printed circuit board with the sample flow sensor on the sample chamber; see the following section and Figure 3-3.

9.2.5.2. Sample Flow Sensor

A thermal-mass flow sensor is used to measure the sample flow through the analyzer. The sensor is calibrated at the factory with ambient air or N2, but can be calibrated to operate with samples consisting of other gases such as CO2, See Section 9.3.4. This sensor is mounted to a printed circuit board with the Sample Pressure sensor on the sample chamber; see the previous section and Figure 3-3.

Teledyne Analytical Instruments

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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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