Theory of Operation

Model GFC7000TA Carbon Dioxide Analyzer

9.3.5.3. Zero/Span Valve Options

Any zero/span valve options installed in the analyzer are controlled by a set of electronic switches located on the relay board. These switches, under CPU control, supply the +12VDC needed to activate each valve’s solenoid.

9.3.5.4. IR Source

The Relay board supplies a constant 11.5VDC to the IR Source. Under normal operation the IR source is always on.

9.3.5.5. Status LEDs

Eight LEDs are located on the analyzer’s relay board to show the current status on the various control functions performed by the relay board (see Figure 10-14). They are:

Table 9-2: Relay Board Status LED’s

LED

COLOR

FUNCTION

STATUS WHEN LIT

STATUS WHEN UNLIT

D1

RED

Watchdog Circuit

Cycles On/Off Every 3 Seconds under direct control of the

 

 

 

analyzer’s CPU.

 

D2

YELLOW

Wheel Heater

HEATING

NOT HEATING

D3

YELLOW

Bench Heater

HEATING

NOT HEATING

 

 

 

 

 

D4

YELLOW

Spare

N/A

N/A

 

 

 

 

 

D5

GREEN

Sample/Cal Gas

Valve Open to CAL GAS

Valve Open to SAMPLE GAS

 

 

Valve Option

FLOW

FLOW

D6

GREEN

Zero/Span Gas

Valve Open to SPAN GAS

Valve Open to ZERO GAS FLOW

 

 

Valve Option

FLOW

 

D7

GREEN

Shutoff Valve

Valve Open to CAL GAS

Valve CLOSED to CAL GAS

 

 

Option

FLOW

FLOW

D8

GREEN

IR SOURCE

Source ON

Source OFF

Teledyne Analytical Instruments

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Teledyne gfc 7000ta Status LEDs, Relay Board Status LED’s, LED Color Function Status When LIT Status When Unlit
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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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