Dräger MA-Flowzell PIR 7000 Manuale utente

Below you will find brief information for Flowcell PIR 7000 Type 334, Flowcell PIR 7000 Type 340, Flowcell PIR 7200, Flowcell PIR 7000 Duct. These Flowcells are designed for functional checks and calibration of Dräger PIR 7000/7200 gas transmitters. They use standard or high-concentration test gases (depending on the transmitter model) and require a correction factor due to partial IR absorption. Proper flushing with test gas is crucial for accurate readings.

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Key features

  • Calibration/functional testing of gas transmitters
  • Use with Dräger PIR 7000/7200 gas transmitters
  • Supports standard and high-concentration test gases
  • Requires correction factor for accurate readings
  • Easy installation and use

Frequently asked questions

For Dräger PIR 7000, standard test gas (40-60% LEL) or high-concentration gas (e.g., 10 vol.% methane in nitrogen) can be used. For Dräger PIR 7200, test gas with a concentration of 2-20 vol.% CO2 is required.

Because only the Flowcell is flushed with test gas, not the entire measuring cuvette of the gas transmitter, resulting in partial IR absorption. The conversion factor corrects for this discrepancy.

The necessary time depends on the gas flow rate and the length and diameter of the tubing used.
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