TSI 3088 Advanced Aerosol Neutralizer

Description of TSI 3088

The TSI® Advanced Aerosol Neutralizer 3088 offers an alternative to traditional radioactive neutralizers frequently required for aerosol measurement applications. Due to increasingly stringent local, state and national regulations, obtaining licensing to acquire and use radioactive sources is often difficult and in some cases prohibited. Fully compliant with US FDA, CDRH* standards, the patented** model 3088 provides an attractive alternative, with sizing performance virtually identical to TSI®’s Aerosol Neutralizer 3077A.

Applications

This new aerosol neutralizer was specifically designed to interface with TSI®’s new Electrostatic Classifier 3082. Like its predecessor model 3087, it can be applied where radioactive neutralizers have been traditionally used. Since the model 3088 can be easily turned on and off, there are no transportation restrictions, making it a good choice for mobile studies, field studies, and other applications where the aerosol neutralizer will need to be moved from place to place.

• Submicron Aerosol Sizing
• Mobile and Field Studies
• Aerosol Charging Investigations
• Monodisperse Aerosol Generation

Features and Benefits

• Nonradioactive alternative to 85Kr, 210Po, and 241Am aerosol neutralizers
• Virtually identical sizing to radioactive neutralizers: geometric mean diameters and geometric standard deviations within 5%
• No transportation restrictions simplifies buying, using, and handling aerosol neutralizers
• No particle generation
• Compatible*** with TSI’s SMPS™ spectrometers models 3938, 3936 and 3034 and TSI’s Electrostatic Classifiers models 3082 and 3080
• Electronic device-easily turned on and off with 7-s response time
• Bipolar diffusion charger with balanced levels of positive and negative ions
• Neutralizes particle concentrations up to 107 particles/cm3

Technical specifications of TSI 3088

Mode of Operation

• Bipolar diffusion charging by soft (low energy) X-rays

Ion Generation Source

• Soft X-rays < 9.5 keV

Flow Rate Range

• 0.3 to 5.0 L/min

Equivalent X-ray Dose

• < 0.3 µSv/h (0.03 mRem/h) at 0 cm distance
• < 0.2 µSv/h (0.02 mRem/h) at 5 cm and 10 cm distance Measured at outlet port without tubing

Particle Production

• < 0.01 particles/cm3
• For flow rates ≥ 0.3 L/min, using clean air. Air containing reactive and/or condensable gases or vapors can lead to higher particle production rates.

Maximum Particle Concentration

• 107 particles/cm3

Aerosol Medium

• Air or N2 only

Operating Conditions

• Temperature Range
  0ºC to +33°C
• Humidity Range
  0 to 60% RH non-condensing
• Altitude
  Up to 2000 m a.s.l. (6,500 ft)

Storage Conditions

• Temperature Range
  -10ºC to +60°C
• Humidity Range
  0 to 80% RH non-condensing

Differential Pressure Range

• ±70 kPa (±10 psi)
• measured from inlet or outlet port to ambient

Power

• 3082 operation
  Thru DB9 connector
• Stand-alone operation
  Universal AC adapter
• Input:
  100 to 240 VAC, 50/60 Hz,
• Output:
  12 VDC, 2.5A

Communication

• 3082 operation
  Thru DB9 connector
• Stand-alone operation
  N/A

Weight

• 1.6 kg (3.5 lb)

Dimensions (H x W x D)

• 35.3 x 12.4 x 5.0 cm (13.9 x 4.9 x 2.0 in.)

Aerosol Ports

• Inlet and outlet tubes
  ¼ in O.D.

Device Construction Materials

• Aerosol Path
  Stainless steel and PTFE
• Do Not Dispose
  Source contains a beryllium window. It must be properly recycled

Regulations

• Some countries have no regulations governing soft X-ray devices, while others do. While it is universally true that all countries have less stringent regulations regarding soft X-ray devices versus radioactive devices, like most issues, each region has unique rules. For the most up to date information, contact your local TSI representative or send an e-mail inquiry to particle@tsi.com.

Source Lifetime and Service

• The soft X-ray source in the Advanced Aerosol Neutralizer 3088 has a lifetime of approximately 8,760 operating hours (one year of continuous use). Since the device can be turned off when not in use, the neutralizer has an operating lifetime of many years for most applications. Elapsed operating lifetime is indicated by a blinking LED. If used in a 3082 Electrostatic Classifier, the accumulated operating hours can be displayed. When the operating lifetime is reached, return the neutralizer to TSI for repair and calibration.