Germany - gas analysers

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Provided by Open Opps
Opportunity closing date
10 October 2019
Opportunity publication date
27 September 2019
38432100: Gas-analysis apparatus
Value of contract
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Each of the two GHG analysers to be purchased shall have the following performance characteristics (minimum requirements):- Ability to continuously, uninterruptedly and simultaneously measure the concentrations of the greenhouse gases water vapour (H2O), carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) in air,- Accuracy of measurement at a measurement time of 1 s: H2O 150 ppm, CO2 300 ppb, CH4 1 ppb, N2O 2 ppb,- Measuring range: H2O 200-70 000 ppm, CO2 1-8 000 ppm, CH4 0-10 ppm, N2O 0-10 ppm,- Measuring frequency: Variable adjustable between 1 s and 1 min,- Maximum drift over 24 h: H2O 100 ppm, CO2 1 ppm CH4 1 ppb, N2O 0.5 ppb,- Response time: 3 s,- Ensuring undisturbed measurements despite small vibrations caused by the movement of the gantry crane,- Interfaces: digital (RS-232), analogue (especially for recording CH4 and N2O data on data loggers), LAN, USB, temperature range of air samples: -30 to 50 oC, - working temperature: 10-40 oC, - connections for gas inlets and outlets, - acquisition, control and storage of data in real time, - possibility of quick calibration of the measuring system on site using calibration gas mixtures.

Opportunity closing date
10 October 2019
Value of contract

About the buyer

Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e. V. Eberswalder Straße 84 Müncheberg 15374 Germany

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