Troubleshooting

Model GFC7000TA Carbon Dioxide Analyzer

Table 11-1: Warning Messages – Indicated Failures (cont.)

 

 

 

WARNING

FAULT CONDITION

POSSIBLE CAUSES

MESSAGE

 

 

SAMPLE TEMP

Sample temperature is < 10oC or >

Ambient temperature outside of specified range

WARN

100oC.

Failed bench heater

 

 

Failed bench temperature sensor

 

 

Relay controlling the bench heater

 

 

Failed relay board

 

 

I2C bus

SOURCE

Occurs when CO2 Ref is <1250

GFC wheel stopped

WARNING

mVDC or >4950 mVDC.

Failed sync/demod board

 

 

If status LED’s on the sync/demod board ARE flashing the

 

Either of these conditions will result

cause is most likely a failed:

 

in an invalid M/R ratio.

IR source

 

 

Relay board

 

 

I2C bus

 

 

IR photo-detector

SYSTEM RESET

The computer has rebooted.

This message occurs at power on. If you have not cycled the

 

 

power on your instrument:

 

 

o Failed +5 VDC power,

 

 

o Fatal error caused software to restart

 

 

o Loose connector/wiring

WHEEL TEMP

The filter wheel temperature is

Blocked cooling vents below GFC Assembly. Make sure that

WARNING

controlled at 68 ± 2 °C

adequate clear space beneath the analyzer.

 

 

Analyzer’s top cover removed

 

 

Wheel heater

 

 

Wheel temperature sensor

 

 

Relay controlling the wheel heater

 

 

Entire relay board

 

 

I2C bus

10.1.2. Fault Diagnosis with TEST Functions

Besides being useful as predictive diagnostic tools, the test functions viewable from the front panel can be used to isolate and identify many operational problems when combined with a thorough understanding of the analyzer’s theory of operation (see Section 10).

The acceptable ranges for these test functions are listed in the “Nominal Range” column of the analyzer Final Test and Validation Data Sheet (p/n 04307) shipped with the instrument. Values outside these acceptable ranges indicate a failure of one or more of the analyzer’s subsystems. Functions whose values are still within the acceptable range but have significantly changed from the measurement recorded on the factory data sheet may also indicate a failure. A worksheet has been provided in Appendix C to assist in recording the value of these test functions.

Table 11-2 contains some of the more common causes for these values to be out of range.

Teledyne Analytical Instruments

221

Page 238 Page 240
Page 239
Image 239
Teledyne gfc 7000ta Fault Diagnosis with Test Functions, Fault Condition Possible Causes Message Sample Temp, Source
Page 238 Page 240

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.
Top Page Image Contents