| Compteur de particules |
| modèle GT - 321 |
| 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 fi ve 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. |
| Applications: |
| •
Controlled • Environments • Indoor Air Quality • Process Control • HVAC Applications • Filter Testing • Laboratory • Environments • Manufacturing • Environments • Emission Sourcing |
| Specifications | |
| OPERATING PRINCIPLE | |
| Counts individual particles using scattered laser light | |
| PERFORMANCE | |
| Particle
Size Range Concentration Range Accuracy Sensitivity Flow Rate Sample Time |
>0.3,
>0.5, >1.0, >2.0, and >5.0 µm (selectable) 0–3,000,000 particles per cubic foot (105,900 particles/L) ± 10%, to calibration aerosol 0.3 µm 0.1 cfm (2.83 lpm) 1 minute total (fi rst reading in 9 seconds, subsequently every 6 seconds) |
| ELECTRICAL | |
| Light
Source Power AC Adapter/Charger Communications Certifi cations |
Laser
diode, 30 mW, 780 nm 6V Ni-MH self-contained battery pack—provides 8 hours of typical intermittent operation, up to 5 hours continuous use AC to DC module, 100–240 VAC to 9 VDC @ 350 mA typical RS-232 Meets or exceeds CE, ISO, ASTM, and JIS international certifi cations |
| INTERFACE | |
| Display
Keyboard |
16-character
LCD 2-button membrane |
| PHYSICAL | |
| Size
Weight |
Height
= 6.25” (15.9 cm) Width = 3.65” (9.3 cm) Thickness = 2.0”
(5.1 cm) 1.74 lb - 28 oz (0.79 kg) |
| ENVIRONMENTAL | |
| Operating
Temperature Storage Temperature |
0º
to +50ºC -20º to +60ºC |
| 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 |
| METGT321 - 0 | Handheld Particle Counter |