Tender for Pm 2.5 Sampler, 1.sampling Principle: Impactor Bas...

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Item Title: Pm 2.5 Sampler
Item Description: 1.Sampling principle: Impactor based design as per EPA/USEPA and CPCB guidelines specifications 2.Particle Separation: Omni-directional air inlet with PM10 separation through an impactor followed by PM 2.5 separation through a WINS impactor 3.Sampling Rate: Sampling rate of about 1 m3 / hr, unaffected by voltage fluctuations and filter chocking maintained by critical orifice system, microprocessor based digital flow controller and other suitable flow controller. 4.Filter Holder: Filter holder, designed to accept any standard filter media of 46.2 mm diameter.5.Sampling duration recorder: Time totalizer to record the sampling duration to the nearest 0.01 hour.6.Flow Recorder & Display System : Recorder for flow rate, volume of sampled air, air temperature, filter temperature, barometric pressure and filter pressure with 20×4 LCD display showing real time viz.7.Auto shut off facility: Auto shut off and start facility for the sampler if flow rate drops by more than 10 % from the designed value with accuracy ± 2 min/month.8.Pump: Oil free, Low noise, driven by brushless induction motor.9.Power requirement: Single phase AC, 220 Volts, 50 H...