Portable Air Particle Counters
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Features of MET ONE 3411
Keeps your cleanroom clean
The only 0.1um particle counter without a dirty exhaust fan.
Hot-swappable batteries –100% instrument availability
Hot-swappable batteries eliminate the need to stop measuring while your instrument charges or for powering down, zero counting and powering back up.
Test wizard for easier compliance - organize your cleanroom
Save time and eliminate errors when monitoring your semiconductor production environments.
Sequential sampling - manifold system
Low cost site monitoring solutions can be deployed with the MET ONE Model 3432 manifold. Sample sequentially from up to 32 locations with a single MET ONE Model 3411 series particle counter.
Flexible communications – easy setup and data transfer
Reduce your paperwork with wireless, Ethernet and serial communication options to MET ONE Data Management or your own software solutions.
Intuitive user interface
Easily set up sampling plans by area, location and operating parameter, saving operator time. Eliminate setup errors and save time by exporting setup configuration to USB memory stick and deploy your sampling plan across your entire particle counting fleet!
ISO 21501-4 reliability and accuracy
Designed for exceptional particle counting performance providing ISO 21501-4 compliant unit-to-unit accuracy and reproducibility.
Number of Size Channels
0.1, 0.2, 0.3, 0.5, 1.0, 5.0µ
Helium Neon Laser
Without battery: 15.9 kg (35 lbs)
Battery: 0.66 kg (1.45 lbs)
Easy to clean Stainless Steel
1.0 CFM (28.3 LPM)
ISO 21501-4 and JIS B 9921: 1 count or less in 5 minutes, 95% UCL
5% at 50,000 /ft3 per ISO 21501-4 method
Patented multi-lobe closed loop controlled rated for continuous use
50% at 0.1 Μm; 100% for particles > 0.15 Μm per ISO 21501-4 and JIS B 9921
10° to 40°C (50° to 104°F); 10 to 90% relative humidity, non-condensing
¼ VGA Color TFT touch screen
High speed thermal
English, French, German, Italian, Spanish, Korean*, Japanese*, Chinese
Maximum Count Displayed
15 seconds to 23 hours 59 minutes 59 seconds
1 second to 23 hours 59 minutes 59 seconds
1 to 9,999,999 counts
ID: 0 to 999
NAME: Alphanumeric, appears on printout
5,000 samples, scrollable on Historical Data review screen (FIFO or Overflow)
USB Client (Version 1.1) USB Host (Version 1.1) RS-485 Ethernet with TCP/IP protocol Wireless with 802.11g protocol (optional) Met One 3432 manifold Auxiliary (alarm and scan probe)
Modbus TCP , Modbus RTU , Serial FX
Air Velocity Probe, RH/Temperature Probe
Auto CDA Purge
Purge solenoid activated by connection to Clean Dry Air source
24 VDC with 100-240 VAC, 50/60 Hz adapter
Lithium ion smart battery; rechargeable, ejectable, and hot-swappable
Battery Operating Time
3 hours minimum
Battery Recharge Time
6.75 hours minimum, 10 hours maximum
Battery Quantity Included