Air Quality | GT-321 Single Channel Particle Counter

		The reliability you demand at a price you won’t believe! Small Size—Big Performance The handheld GT-321 is a portable particle counter that counts particles down to 0.3 microns—giving you portability and reliability at the lowest price in the industry. Completely Self-Contained—Selectable Particle Sizes Don’t let the size fool you—the GT-321 is completely self-contained with its own internal battery and sample pump, and is programmable, allowing you to choose your particle size of interest from five sizes: 0.3, 0.5, 1.0, 2.0, or 5.0 microns. Fast Sampling Unlike other counters that can take up to a minute to deliver results, the GT-321 starts delivering volumetric concentration results in about 6 seconds! This facilitates quick multi-site sampling, tracing particle sources and site particle trending. Simple Operation Only two front-panel buttons control the size channels and sample cycle. The side-mounted power switch allows for convenient thumb operation. Battery or AC Powered The self-contained battery pack powers the unit for 8 hours of typical intermittent operation, and for up to 5 hours of continuous use. The included AC adapter operates the counter, even when the battery pack is discharged, and recharges the depleted battery overnight (16 hours) when turned off. Off-the-Shelf Delivery Units are available for same-day or next-day shipping!
	GT-321 Single Channel Particle Counter Literature: Data Sheets Manual

Specifications

OPERATING PRINCIPLE	Counts individual particles using scattered laser light
PERFORMANCE
Particle Size Range	>0.3, >0.5, >1.0, >2.0, and >5.0 μm (selectable)
Concentration Range	0 – 3,000,000 particles per cubic foot (105,900 particles/L)
Accuracy	± 10%, to calibration aerosol
Sensitivity	0.3 μm
Flow Rate	0.1 cfm (2.83 lpm)
Sample Time	1 minute total (first reading in 9 seconds, subsequently every 6 seconds)
ELECTRICAL
Light Source	Laser diode
Power	6V 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
Certifications	Meets or exceeds CE, ISO, ASTM, and JIS international certifications
INTERFACE
Display	16-character LCD
Keyboard	2-button membrane
PHYSICAL
Size	Height = 6.25" (15.9 cm) Width = 3.65" (9.3 cm) Thickness = 2.0" (5.1 cm)
Weight	1.74 lb – 28 oz (0.79 kg)
ENVIRONMENTAL
Operating Temperature	0° to +50°C
Storage Temperature	-20° to +60°C
ACCESSORIES
Supplied	Operation Manual Custom Serial Cable AC to DC Converter Module with IEC AC Power Cord Isokinetic Sample Probe Screwdriver Carrying Case Zero Particulate Filter

Applications:
Controlled Environments Indoor Air Quality Process Control	HVAC Applications Filter Testing Laboratory Environments	Manufacturing Environments Emission Sourcing