TSI 3789 Versatile Water-Based Condensation Particle Counter

Description of TSI 3789

Water-Based Condensation Particle Counters (WCPCs) deliver accurate concentrations of particles in gases while making use of safe, eco-friendly and easily available distilled water. When combined with a particle sizer, nanoparticle size distributions and concentration can be quantified from < 2 nm to nearly 1,000 nm.

The 3rd generation of WCPCs comes with numerous enhancements:

• Unprecedented reliability
• Low maintenance
• Adjustable counting efficiency

Features and Benefits

• Selectable counting efficiencies
• Predefined setpoints of 50% counting efficiency for 2.2 nm and 7 nm (sucrose)
• Single particle counting up to 2 x 105 particles/cm3
• Distilled water as convenient, eco-friendly and safe working fluid
• 50 Hz data acquisition
• Built-in Scanning Mobility Particle Sizer™ (SMPS™) compatibility
• Large internal memory for 1+ year of data
• Remote control and data download through Ethernet

Applications

TSI’s versatile WCPC is suitable for most particle counting applications, but its ability to detect down to 2.2 nanometers make this WCPC ideally suited for:

• Particle formation and growth studies
• Nanotechnology research or process monitoring
• Inhalation or exposure chamber studies
• Long-term, uninterrupted air quality monitoring
• Parts cleanliness testing in semiconductor manufacturing
• High-purity process gas testing in semiconductor manufacturing

Technical specifications of TSI 3789

Particle Size Range

• User-selectable 2.2 nm and 7 nm min. detectable particle size (D50), verified with monodisperse sucrose particles
• Custom setpoint for growth section temperatures

Particle Concentration Range

• Up to 200 ,000 (2×105) particles/cm3
  Single particle counting with continuous live-time coincidence correction

Particle Concentration Accuracy

• ±5% at < 200 ,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 ~0.6 s for 90% (T10-90, T90-10)

Flow System

• 0.3 L/min aerosol flow
• 0.6 or 1.5 L/min inlet flow
• 2.5 L/min inlet flow option

Liquid System

• Distilled water is used as working fluid
• Water consumption approx. 43 mL per 24 h

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. Automated configuration (DHCP) of network settings

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, 200 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)

• 30.7 cm x 18.3 cm x 40.4 cm (12.1 in. x 7.2 in. x 15.9 in.) without fill and drain bottle attached

Weight

• 8.2 kg (18.2 lbs)