TSI 3756 Ultrafine Condensation Particle Counter

Description of TSI 3756

The 4th generation of TSI® Butanol-CPCs (Condensation Particle Counters) makes the best CPCs even better: providing easier use for everyone with an intuitive direct- touch user-interface, new software and secure internal data storage for months of data. Users can rely on the proven compact and rugged instrument with new wired or optional wireless communication capabilities accommodating the modern needs of researchers, enabling full remote access to instruments located in monitoring sites around the world.

The Ultrafine CPC model 3756 fits seamlessly into the family of four Butanol-based CPCs including the Standard model, the High Concentration and the 1-nm model, and is fully integrated into the SMPS™1 family series 3938. With its concentration and size range it serves all applications.

All TSI® CPCs are equipped with a removable saturator wick for easy transport and maintenance to allow longer operation time by simple user maintenance.

Features and Benefits

• Extended concentration range up to 300,000 particles/cm³
• Size range down to 2.5 nm (D50)
• Data rate up to 50 Hz – capture highly dynamic processes
• Water-removal system – compatible to high-humidity environments
• Improved diagnostics with Pulse Height Monitoring

Applications

• Filter testing
• Basic aerosol research
• Combustion
• Health and atmospheric studies, specifically serving researchers in need of reaching down to smallest particles

Technical specifications of TSI 3756

Particle Size Range

• 2.5 nm min. detectable particle size (D50), verified with monodisperse sucrose particles
• >3 µm max. detectable particle size

Particle Concentration Range

• Up to 300,000 (3×105) particles/cm³
• Single particle counting with continuous live-time coincidence correction

Particle Concentration Accuracy

• ±10% at < 300,000 particles/cm³

False Background Counts

• 0.01 particles/cm³ based on 12-hour average

Response Time

• Response time described in percentage to concentration step change
• High flow
  • < 0.2 seconds for 90% to 10% (T10-90, T90-10)
  • < 1 seconds for 0 to 95% (T95)
• Low flow
  • < 2 seconds for 90% to 10% (T10-90, T90-10)
  • < 3 seconds for 0 to 95% (T95)

Flow System

• 0.3 ± 0.015 L/min or 1.5 ± 0.05 L/min inlet flow (volumetric)
• 0.05 ± 0.005 L/min counting flow (volumetric)

Liquid System

• Butanol (n-Butyl alcohol, not included) used as working fluid
• Use of the internal water removal pump to remove condensate is recommended for use in humid environments

Communication Interfaces

• Embedded touch-display
• Pulse output: BNC connector, TTL level pulse, nominally 350 nanoseconds wide
• USB type C to connect CPC directly to computer operating control software Aerosol Instrument Manager (included)
• Ethernet port (8-wire RJ-45 jack, 10/100 BASE-T, TCP/IP) for remote connection. Configurable for automated (DHCP) or manual network settings
• USB type B for external memory drives

Ambient Operating Conditions

• Temperature
  10 to 35°C (50 to 95°F)
• Humidity
  0 to 90% RH, noncondensing
• Pressure
  75 to 105 kPa (0.75 to 1.05 atm)

Accessories

• Required
  Electrical: 100 to 240 VAC, 50/60 Hz, 335 W maximum. Auto recovery from power failure built in.
• Included
  Fill and drain bottles
  Aerosol Instrument Manager for Count products license
  USB C to A cable for connecting to a computer

Data Storage

• Internal memory lasts for approx. 1 year of data at 50 Hz data rate

Dimensions (H x W x D)

• 30.1 cm x 28.1 cm x 35.4 cm (11.84 in. x 11.05 in. x 13.92 in.), not including fill bottle and bracket

Weight

• ~9.1 kg (~20 lbs)