TW-2750 indoor fine particulate matter sampler

TW-2750 Indoor PM Sampler is suitable for indoor PM measurement, which is suitable for routine monitoring and environmental assessment in factories, mines, environmental protection, scientific research, meteorology, etc.

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Detailed Product Description

Product Description of TW-2750 indoor fine particulate matter sampler
TW-2750 Indoor PM Sampler is suitable for the determination of indoor PM. The instrument adopts high and new technology in the field of sensors and new materials, with reliable quality, stable performance and long service life, and is suitable for routine monitoring of the atmosphere and environmental assessment in factories, mines, environmental protection, health, labor, scientific research, meteorology and other related departments.
Technical features of TW-2750 indoor fine particulate matter sampler
■ AC and DC dual-use, built-in lithium battery, continuous work more than 7 hours;
■ Brushless motor, strong load capacity, can work continuously for a long time;
■ Electronic flow meter, constant current sampling;
■ With a real-time clock, can be set up to time sampling, interval sampling;
■ Sampling head made of aluminum alloy, anti-static adsorption;
■ Automatic measurement of temperature, air pressure, automatic calculation of standard volume, reference volume;
■ Large-size Chinese dot-matrix LCD screen, automatic adjustment of contrast, can work normally at minus 30 degrees;
■ Small size, light weight, easy to carry;
■ Power-down protection function, incoming automatic sampling;
■ With RS232 digital communication interface, can be connected to an external thermal printer, convenient data output.
Technical Parameters of TW-2750 indoor fine particulate matter sampler

Main parameters	Parameter range	resolution (of a photo)	accuracy
Sampling Flow	(0～30)L/min	0.1 L/min	Better than ±2.5%
Flow Repeatability	-	-	Better than ±2.0%
Flow Stability	-	-	Better than ±2.0%
sampling time	1min～99h59min	1 min	Not exceeding ±0.2%
preload pressure	(-30～0)kPa	0.01 kPa	Better than ±2.5%
ambient atmospheric pressure	(60～130)kPa	0.01 kPa	Not exceeding ±500Pa
timed boot	24-hour system
Equal interval sampling time	Any setting within 99 hours and 59 minutes
Number of equal interval samples	1st to 99th order
Instrument Noise	＜55 dB(A)
Dimensions of main unit (L×W×H)	305mm×185mm×240mm
power supply	AC(220±22)V, 50Hz or built-in lithium battery
weights	About 6.5 kg
power wastage	＜200W