The working principle of QCS-3000 atmospheric sampler:
QCS-3000 type dual gas path atmospheric sampler is composed of filter, regulating valve, flow meter, air pump, display, electronic control circuit and single chip computer. As shown in the figure, the instrument is composed of two suction pumps to form an independent gas circuit system for sampling, which is not connected to each other. The two gas circuits can collect a balanced sample at the same time. Two different gas samples can also be collected. The time is arbitrarily set from 0.01 to 99.59 hours. The instrument is powered by 6 No. 2 nickel-cadmium batteries, which should be charged when the battery is under voltage. The prompt "Charge complete" indicates that the battery is fully charged. After the battery is fully charged, the instrument will cut off the power and shut down automatically. If the instrument is not used for a long time, charge the instrument for maintenance once a month to ensure that the rechargeable battery is not damaged. If you use AC power, please insert the special plug wire into the external power socket on the back of the instrument, the internal DC automatically switches the AC power supply.
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