Fluke 985 Particle Counter
Model No :
Fluke 985
Part Code :


The Fluke 985 Particle Counter is the preferred choice for HVAC and IAQ professionals. From filter testing to IAQ investigations, the Fluke 985 is the portable solution for determining airborne particle concentrations. Use the Fluke 985 to immediately respond to occupant complaints, or as part of a comprehensive preventive maintenance program.

- Six channels and particle size range of 0.3 - 10.0 µm: Assures accurate measurements even for critical locations requiring ISO Class 5 – 9 certification
- Ultra-lightweight and ergonomic design: Promises easy single-hand operation in tight or awkward spaces with less operator fatigue
- Long battery life: Ten hours of standard-use battery life to last a full work day
- Large 3.5 QVGC Color display: Easy navigation and viewing with the intuitive icons and large font options
- 10,000 record storage: Quick access to historical data
- On-screen data presentation: Data can be viewed in a traditional tabular or trend graph view at the user’s preference
- Personalized setting and configurations: Customizable settings for the display, sample methods, and alarm settings for sample count
- Data export options: Download data to a PC using a USB memory stick, USB cable or Ethernet connection. No special software is required to download or view data

Major Applications
- Monitor industrial cleanrooms
- Report the effectiveness of repairs to customers

Technical Specifications
- Channels: 0.3 µm, 0.5 µm, 1.0 µm, 2.0 µm, 5.0 µm, 10.0 µm
- Flow rate: 0.1 cfm (2.83 L/min)
- Light source: 775 nm to 795 nm, 90 mW class 3B laser
- Count modes: Raw counts, #/m3, #/ft3, #/liter in Cumulative or Differential mode
- Counting efficiency: 50% @ 0.3 µm; 100% for particles > 0.45 µm (per ISO 21501)
- Zero count: 1 count / 5 minute (JIS B9921)
- Concentration limits: 10% at 4,000,000 particles per ft3 (per ISO 21501)
- Data storage 10,000 records (rotating buffer)

General Specifications
- Operating environment: 50°F to 104°F (10°C to 40°C) / < 95% non-condensing relative humidity
- Storage environment: 14°F to 122°F (-10°C to 50°C)/Up to 98% non-condensing relative humidity
- Alarms Counts, low battery, sensor fail
- Delay time: 0 to 24 hours
- Sample inlet: Isokinetic probe