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.

Applications:

• Controlled Environments
• Indoor Air Quality
• Process Control
• HVAC Applications
• Filter Testing
• Laboratory Environments
• Trace Contamination Source
• QA Programs

• Met One804 Four Channel Handheld Particle Counterdatasheet

Specifications

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 intermittentoperation, up to 8 hours continuous use
• AC Adapter/Charger  :  AC to DC module intelligent Lithium Ion charger, 100 240VAC 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

• Dimension  :  H 6.75" (17.2 cm) W3.75" (9.5 cm) T 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 and Software

Optional

• Carrying Case (P/N 8517)
• Protective Boot (P/N 80450)
• Zero Filter Kit (P/N 80846)
• Flow Meter Kit (P/N 80530)