Automated apparatus for detecting gaseous components in air with a colorimetric testing tube

US5069879A · kind A · utility

Assignee

• DRAGERWERK AKTIEGESELLSCHAFT · DE

Inventors

• Kurt Leichnitz · Erkrath, DE
• Wolfgang May · Reinfeld, DE
• Wolfgang Bather · Lübeck, DE
• Wolfgang Evers · Lübeck, DE

Key dates

• Filing date: Jun 16, 1989
• Grant date: Dec 3, 1991
• Expiry date: Jun 16, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S436/902
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention is directed to an arrangement for detecting gaseous components in air wherein an air pumping device pumps a sample quantity through the testing tube. The air pumping device includes a receiver for the testing tube and the charge in the testing tube is evaluated. The arrangement is improved in that the detection of different components with the corresponding testing tubes is conducted automatically in that the data characteristic for the measurement is automatically considered and processed to a display of the measured values. For this purpose, the testing tube is provided at its outer periphery with a machine-readable memory whose data is detected by a read unit when the testing tube is introduced into the receiver of the pumping device. The data from the machine-readable memory is conducted to an evaluation unit.