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Water-Based SMPS 3938W89 Wide-Range Particle Sizer

The TSI SMPS™ 3938W89 is a state-of-the-art particle sizer designed for continuous monitoring of ultrafine particles in ambient air. With an extended measurement range from 10 nm to 800 nm in a single scan—thanks to the advanced DMA 3083 (based on the TROPOS Vienna design)—this instrument delivers reliable, high-quality data for atmospheric research and regulatory air quality monitoring. Its water-based Condensation Particle Counter (CPC) operates on distilled water, eliminating the need for volatile organics, and the system is designed for 24/7/365 operation. Optional advanced software features include particle loss correction, extended auto-export of data, and power-outage recovery mode, ensuring seamless integration into monitoring networks.

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Features
  • Wide Size Range: Measures particles from 10 nm to 800 nm in a single scan using the updated DMA 3083.
  • Water-based CPC: Uses distilled water for safe operation without volatile organics.
  • Fast Scanning: Capture dynamic aerosol distributions in as little as 1 minute.
  • Continuous Operation: Built for 24/7/365 monitoring, ensuring you never miss critical data.
  • Advanced Software Options: Offers particle loss correction, auto-export of data, and power-outage recovery for reliable long-term monitoring.
  • Modular Design: Easily exchangeable components to customize the particle size range according to your needs.
  • Integrated Environmental Sensing: Optionally log relative humidity and temperature with the RHT3000 sensor.
Applications
  • Air Quality Monitoring: Real-time tracking of ultrafine particles in ambient environments.
  • Environmental Chamber Studies: Simulate atmospheric conditions to study aerosol behavior.
  • Indoor Air Quality Assessments: Evaluate particle concentrations in offices, schools, and other enclosed spaces.
  • Health Effects Studies: Investigate the impact of ultrafine particles on human health.
  • Basic Aerosol Research: Support fundamental research in particle nucleation, growth, and dynamics.
Specifications
Parameter Value
Aerosol Flow Rate 0.6 or 1.5 L/min
Sheath Flow Rate 2 to 15 L/min, user-selectable
Particle Size Range 10 to 800 nm
Measurement Time 1 to 10 minutes, user-selectable
Working Fluid for CPC Distilled water
Ambient Operating Conditions Temperature: 10–35 °C; Pressure: 75–105 kPa; Humidity: 0–90% (non-condensing). Temperature and pressure affect the available particle size range.
Data Acquisition Continuous with PC-based software. Optional monitoring module allows automatic export of multiple datasets (raw and final concentrations), auto-recovery after power outage, and correction for particle losses.
Aerosol Neutralizer Options (ordered separately) 3077A: 370 MBq (10 mCi) Kr-85, half-life 10.8 years; 3088: Soft X-ray <9.5 keV, ~8,760 operating hours; 6005931: Lead shielding column for 3077/3077A inside 3082 classifier
Communication & User Interfaces Ethernet (RJ-45, 10/100 BASE-T, TCP/IP), configurable for DHCP/manual; RS-232 CPC-to-Classifier; embedded touch display for local diagnostics
Power Requirements 3789: 200 W; 3082: 200 W
Dimensions (H × W × D) / Weight 3082: 40 × 28 × 40 cm / 14.2 kg; 3083: 47 × 13.2 × 15.9 cm / 8.5 kg; 3789: 30.7 × 18.3 × 40.4 cm / 8.2 kg*; Assembled 3938W89 SMPS system: 70.7 × 40.5 × 40.4 cm / 30.9 kg**