Quantum Cascade Laser Analyser for Greenhouse Gases and Air Pollutants

Tender description

A rack mounted quantum cascade laser instrument capable of high precision (< 0.5 nmol mol-1 for all except carbon dioxide ≤ 25 nmol mol-1) simultaneous measurements of carbon dioxide, methane nitrous oxide, carbon monoxide, ammonia, nitrogen monoxide, nitrogen dioxide and sulfur dioxide in the 0 – 10 µmol mol-1 range (0 – 30 µmol mol-1 for methane and 0- 5000 µmol mol-1 for carbon dioxide). Lot 1: Multicomponent quantum cascade laser analyser with ≥ 1 Hz data acquisition rate that allows the simultaneous measurement of carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), carbon monoxide (CO), ammonia (NH3), nitrogen monoxide (NO), nitrogen dioxide (NO2), sulphur dioxide (SO2) with the following amount fractions ranges and one sigma (1σ) precisions: Carbon dioxide (amount fraction range: 0 – 5000 µmol mol-1; precision 25 nmol mol-1), methane (amount fraction range: 0 – 30 µmol mol-1; precision 0.22 nmol mol-1), nitrous oxide (amount fraction range: 0 – 10 µmol mol-1; precision 0.1 nmol mol-1), carbon monoxide (amount fraction range: 0 – 10 µmol mol-1; precision 0.01 nmol mol-1), ammonia (amount fraction range: 0 – 10 µmol mol-1; precision 0.5 nmol mol-1), nitrogen monoxide (amount fraction range: 0 – 10 µmol mol-1; precision 1 % or 1 nmol mol-1, whichever is greater), nitrogen dioxide (amount fraction range: 0 – 10 µmol mol-1; precision 1 % or 1 nmol mol-1, whichever is greater) and sulphur dioxide (amount fraction range: 0 – 10 µmol mol-1; precision 1 % or 1 nmol mol-1, whichever is greater). The instrument shall have a flow rate of 0.5 – 1.5 slpm, a leak rate of ≤ 10¯⁹ mbar xl/s and response time of < 2 minutes. It shall be able to operate under environmental conditions of ambient temperature: 15⁰C to 30⁰C and ambient humidity: 30-80% RH without condensing. The wetted materials shall be corrosion resistance preferable SS 316/316L. A gas connection of ¼” or 6mm Swagelok is required with an inlet pressure of 1 – 5 bar absolute. The instrument shall have the following connectivity: 100-1000 Base-T Ethernet, USB 2.0 or better, serial RS232/485, Modbus TCP and an isolated 4-20 mA or 0-10 Vdc analogue output. Power consumption ideally should < 500 W and with a total weight of < 50 kg. The analyser shall be CE/UKCA certificated with a minimum of 12-month warranty.