Teledyne gfc 7000ta Special Features, Dilution Ratio Option, Maintenance Mode Switch

FAQ Model GFC7000TA Carbon Dioxide Analyzer

5.7. Special Features

5.7.1. Dilution Ratio Option

The Dilution Ration Option is a software option that is designed for applications where the Sample gas is diluted before being analyzed by the Model GFC 7000TA. Typically this occurs in Continuous Emission Monitoring (CEM) applications where the quality of gas in a smoke stack is being tested and the sampling method used to remove the gas from the stack dilutes the gas.

Once the degree of dilution is known, this feature allows the user to add an appropriate scaling factor to the analyzer’s CO2 concentration calculation so that the Measurement Range and concentration values displayed on the instrument’s Front Panel Display and reported via the Analog and Serial Outputs reflect the undiluted values.

Instructions for using the dilution ratio option can be found in Section 6.8.7.

5.7.2. Maintenance Mode Switch

TAI’s instruments can be equipped with a switch that places the instrument in maintenance mode. When present, the switch accessed by opening the hinged front panel and is located on the rearward facing side of the display/touchscreen driver PCA; on the left side; near the particulate filter.

When in maintenance mode the instrument ignores all commands received via the com ports that alter the operation state of the instrument. This includes all calibration commands, diagnostic menu commands and the reset instrument command. The instrument continues to measure concentration and send data when requested.

This option is of particular use for instruments connected to multidrop or Hessen protocol networks.

5.7.3. Second Language Switch

TAI’s instruments can be equipped with switch that activates an alternate set of display message in a language other than the instruments default language. When present, the switch accessed by opening the hinged front panel and is located on the rearward facing side of the display/touchscreen driver PCA; on the right side.

To activate this feature, the instrument must also have a specially programmed Disk on Chip containing the second language.

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