Met One 804 Particle Counter

Small Size —Big Performance
The 804 handheld particle counter is a 4 channel portable particle counter that counts particles 0.3 microns to 10.0 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—this unit is completely self contained with its own internal battery and sample pump, and is programmable, allowing you to choose your particle sizes of interest from seven sizes: 0.3, 0.5, 0.7, 1.0, 2.5, 5.0 or 10.0 microns.

Fast Sampling
Unlike other counters that can take up to a minute to deliver results, the 804 incorporates user selectable sampling time up to 1 minute and displays counts in as little as 3 seconds. The unit will take single or continuous samples.

Simple Operation
Only two front-panel buttons and scroll wheel provide a user friendly, menu driven platform that provides ease in configuration.

Battery or AC Powered
The self-contained battery pack powers the unit for 30 hours of typical intermittent operation, and for up to 8 hours of continuous use. The included AC charger / adapter operates the counter, even when the battery pack is discharged, and recharges the depleted battery in 2.5 hours.

Flexible Data Interfaces / USB Communication
Stores up to 2500 records for output, Excel formatted output via included single computer software. USB interface provides quick data download and field firmware upgrades.

SPECIFICATION

OPERATING PRINCIPLE	Counts individual particles using scattered laser light
PERFORMANCE
Particle Size Range	Four Channels : >0.3, >0.5, >0.7, >1.0, >2.5, >5.0, and >10.0 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	Adjustable (3-60 seconds)
Status Indicators	Low Battery, Service
ELECTRICAL
Light Source	Laser diode, 30 mW, 780 nm
Power	7.2V Lithium Ion self-contained battery pack—provides 30 hours of typical intermittent operation, up to 8 hours continuous use
AC Adapter/Charger	AC to DC module intelligent Lithium Ion charger, 100 – 240 VAC to 8.4 VDC @ 1500 mA typical. Charge time 2.5 hours typical
Communications	USB
Certifications	Meets or exceeds CE, ISO, ASTM, and JIS international certifications
INTERFACE
Display	2 line by 16-character LCD
Keyboard	2-button membrane
PHYSICAL
Size	Height: 6.75″ (17.2 cm) Width: 3.75″ (9.5 cm) Thickness: 2.0″ (5.1 cm)
Weight	1.31 lb (21 oz) (0.60 kg)
ENVIRONMENTAL
Operating Temperature	0˚ to +50˚C
Storage Temperature	-20˚ to +60˚C
ACCESSORIES
Supplied	Operation Manual AC to DC Converter Module with IEC AC Power Cord NIST Traceable Calibration Certificate USB Cable Software
Optional	Carrying Case (P/N 8517) Protective Boot (P/N 80450) Zero Filter Kit (P/N 80846) Flow Meter Kit (P/N 80530)