Operating Instructions

Model GFC7000TA Carbon Dioxide Analyzer

6.8.5. Auto Range Mode (AUTO)

In AUTO range mode, the analyzer automatically switches the reporting range between two user-defined ranges (low and high). The unit will switch from low range to high range when the CO2 concentration exceeds 98% of the low range span. The unit will return from high range back to low range once both the CO2 concentration falls below 75% of the low range span.

In AUTO Range mode the instrument reports the same data in the same range on both the A1 and A2 outputs and automatically switches both outputs between ranges as described above. Also, the RANGE test function displayed on the front panel will automatically switch to show which range is in effect.

The high/low range status is also reported through the external, digital status outputs (Section 6.15.1.1).

To set individual ranges press the following keystroke sequence.

SAMPLE*

RANGE = 500.000 PPM

CO2 =X.XXX

< TST TST > CAL

SETUP

 

 

 

SETUP X.X

PRIMARY SETUP MENU

CFG DAS RNGE PASS CLK MORE

EXIT

 

 

 

 

SETUP X.X

RANGE CONTROL MENU

MODE SET UNIT

EXIT

 

 

 

 

 

 

SETUP X.X

RANGE MODE: SNGL

 

SNGL DUAL AUTO

ENTR EXIT

 

 

 

 

 

 

SETUP X.X

 

RANGE MODE: AUTO

 

SNGL DUAL AUTO

 

 

ENTR EXIT

 

 

 

 

 

 

SETUP X.X

 

RANGE CONTROL MENU

MODE SET UNIT

 

 

 

EXIT

 

 

 

 

 

 

SETUP X.X

 

LOW RANGE: 500.0 Conc

0

0

5

0

0

.0

ENTR EXIT

 

 

 

 

 

 

 

 

 

 

SETUP X.X

 

HIGH RANGE: 500.0 Conc

0

0

5

0

0

.0

ENTR EXIT

 

 

 

 

 

 

 

EXIT x 2 returns

to the main

SAMPLE display

Toggle the numeral buttons to set the LOW and HIGH range value. ENTR accepts the new setting, EXIT ignores the new setting.

CAUTION

In AUTO range mode the LOW and HIGH ranges have separate slopes and offsets

for computing CO2 concentration.

The two ranges must be independently calibrated.

NOTE

Avoid accidentally setting the low range of the instrument with a higher span limit than the high range. This will cause the unit to stay in the low reporting range perpetually and defeat the function of the AUTO range mode.

Teledyne Analytical Instruments

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Teledyne gfc 7000ta operation manual Auto Range Mode Auto
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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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