Descriptions:

The GT-531 Mass Particle Counter is a small, handheld, battery operated and completely portable unit providing both particle counts and mass PM measurements as stored datalogged values, real-time networked data, or printed results.

Specifications

Mass Mode
Mass Concentration Ranges:	PM1, PM2.5, PM7, PM10, and TSP
Concentration Range:	0 – 1 mg/m3
Sample Time - Mass Mode:	2 minutes
Particle Mode
Particle Size Range:	Two channels—0.5 and 5.0 μm
Concentration Range:	0 – 3,000,000 particles per cubic foot (105,900 particles/L)
Sample Time - Particle Mode:	1 minute
Accuracy:	± 10%, to calibration aerosol
Sensitivity:	0.5 μm @ 2 to 1 peak to valley (JIS), 2 to 1 S/N
Flow Rate:	0.1 cfm (2.83 lpm)
Electrical
Light Source:	Laser diode, 5 mW, 780 nm
Power:	6V Ni-MH self-contained battery pack—provides 8 hours of typical intermittent operation, up to 5 hours continuous use
AC Adapter/Charger:	AC to DC module, 100 – 240 VAC to 9 VDC @ 350 mA typical
Communications:	RS-232
Particle Certifications:	Meets or exceeds CE, ISO, ASTM, and JIS international certifi cations
Mass Certifications:	Requires proper use of appropriate K-factors for material being measured
Environmental
Operating Temperature:	0˚ to +50˚C
Storage Temperature:	-20˚ to +60˚C