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Dual-channel air sampler/Solution Absorption Method Product introduction
Dual-channel air sampler uses solution absorption method to collect various toxic and harmful gases in ambient atmosphere and indoor air. It can be used for routine or emergency monitoring of gaseous substances in environmental protection, health, labor, safety supervision, military, scientific research, education and other departments.
Dual-channel air sampler/Solution Absorption Method Features
AC/DC dual-use, built-in lithium battery, extraordinary power supply time, continuous power supply time of more than 30 hours after full charge
Dual-channel electronic flowmeter, no flow fluctuation, constant current sampling, any one channel can be controlled separately
High-speed processor automatically calculates and controls the sampling flow, and automatically compensates for flow changes caused by voltage fluctuations and resistance changes
Equal interval sampling, the number of sampling times can be set arbitrarily between 1 and 99 times
During the sampling process, the system power supply status is automatically monitored. When the AC power is disconnected or the built-in lithium battery voltage is low, the current sampling status is automatically memorized, and the previous sampling is automatically restored when the power is on again
Power saving protection function: When the system is in standby mode and not working under battery power, it will automatically shut down one hour after starting up to save battery power to the maximum extent
The gas circuit is equipped with an anti-backflow drying bottle to prevent the absorption liquid from backflowing
Pipeline blockage protection function: During the sampling process, if the pipeline is blocked or the load is too large, the system will automatically stop the pump to protect the instrument from damage due to long-term overload. If the load is greater than negative 20kPa for a long time, the protection function will be automatically started
Automatically measure the ambient atmospheric pressure and temperature, display the real-time sampling flow, cumulative sampling volume, and standard volume
Automatically measure the ambient temperature, and automatically start the constant temperature heating of the absorption bottle at low temperature
Built-in real-time clock, you can pre-set the sampling start time
High-performance subwoofer brushless diaphragm pump, long service life
Red and blue dual-color gas line connecting pipe, easy and accurate connection of the gas line
Chinese LCD display with automatic contrast adjustment, can work normally at minus 30 degrees
Equipped with a height-adjustable tripod bracket
With RS232 digital communication interface, it can be connected to an external printer for convenient data output
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