These micro gas sampling pumps are designed to provide a constant flow of air across any of our sample draw sensors, or sensors with tube cap kits. This makes them perfect for bench-top testing of sensors for closed-loop sampling applications. Here is an example of a closed-loop sampling application. Gas is drawn through an optional particulate filter, water trap, and hydrophobic filter for cleaning and to remove excess moisture in the gas that might foul the sensor. The pump then pushes the gas across a CO2 sensor with a tube-cap that creates a sealed system. Finally, the gas is either exhausted or returned back to the original closed-loop sample. Micro diaphragm pumps are based on the principle of the oscillating displacement pump. The motor causes an internal axle to move back and forth. This action is transferred to the elastic diaphragm which, in cooperation with the non-return valve, produces the pumping effect. Each miniature diaphragm pump we supply is calibrated, and ready to use. Do not use these pumps without filters. If your application involves any of the following the pump will not last to its full life expectancy: Corrosive gasses, water, condensation, high temperature, and high pressure (no more than 6 PSI). Specifications: PMP-0010 Max. Flow: 500 ml/min. Max. Vacuum: -480 mbar Max. Pressure: 400 mbar Rating (MTBF): 1,000 hours (41 days continuously) Rated Power: 3.5 to 5V/90mA Specifications: PMP-0013 - DISCONTINUED PLEASE CONTACT US. Specifications: PMP-0012 For use in Fixed/Wall Mounted Meters Max. Flow: 800 ml/min. Max. Vacuum: -520 mbar Max. Pressure: 600 mbar restart Rating (MTBF): 10,000 hours (415 days continuously) Rated Power: 5-18VDC/800mW Works with all sampling sensors or sensors with tube caps Warranty 90 days Accessories Filters and traps - highly recommended to keep both your micro pump and sensor free of moisture and debris. PMP-0010 Data Sheet (pdf) PMP-0012 Data Sheet (pdf) Pump Notice (pdf)
