Sensidyne Industrial Health and Safety

Sensidyne Nephelometer - Aerosol Monitor

Real-time Dust Monitor for Measuring Total Suspended Particulate (TSP), PM 2.5, and PM 10

Sensidyne Nephelometer - Aerosol Monitor

Sensidyne Nephelometer - Real-time Dust Monitor for Measuring Total Suspended Particulate

Accurate Dust Concentration
Proprietary algorithm provides accurate dust concentration. The sheath air feature prevents internal contamination and improves accuracy.

Reliable
Temperature compensated, durable housing and minimal moving parts ensure reliability.

Highly Portable
All-in-one handheld instrument with long-life batteries that fully charge in less than 3 hours, an internal log-life pump, and one-hand operation.

Facility Monitoring
Easy to use software allows programming unique environmental profiles and recording sample data.

Common Applications
• Industrial/Occupational Hygiene Area Surveys
• Particulate Matter Studies
• Immediate spot measurement
• Aerosol Research Studies

About the Nephelometer Aerosol Monitor

The Sensidyne Nephelometer is an advanced real-time dust monitor (aerosol monitor) accurately measuring dust concentrations using proven light scatter technology. This portable instrument accurately measures and records dust from 1-10,000 μg/m3 with resolution to 1 μg/m3. Sample modes are selectable between 60 second sample, 15 minute STEL, or continuous sampling.

The Nephelometer has an internal pump drawing samples into the iso-kinetic sampling inlet where they meet sheath air that guides samples past the particle sensor. The sensor is a photo detector that measures laser light scattered by particulates in the sample stream. The instrument multiplies each measurement by a K-factor and displays the real-time reading on the display of the instrument. After each sample, the K-factor and Environmental Factor Name and STEL, maximum, minimum, and average readings record to the internal data log. When connected to a computer the instrument uploads up to 4,000 data-log records in spreadsheet format.

In addition to high sensitivity and ease-of-use the Sensidyne Nephelometer offers a low cost of ownership, automatic power save, long-life, data-logging, facility monitoring features, and user-replaceable filters. The Sensidyne Nephelometer is a competitive, well priced alternative to high priced aerosol monitors.

Sensidyne Nephelometer Competitive Advantages

  • Sheath Air
  • Instant Readings
  • Highly Sensitive
  • Data Logging
  • Extremely Portable
  • Low Cost-of-Ownership
  • Long-life Internal Pump
  • Site Monitoring PC Program
  • Selectable Sample Modes
  • Automatic Power Save

 

Product Specifications

Performance

Measurement Method: Light scatter
Particle Size Screening:
                                       Standard Model:  TSP
                                       Deluxe Model:  TSP, PM 2.5, or PM 10 Selective
Sample Method: Pump sample draw
Range: 0.1 – 10,000 μg/m3
Sample Options: 1 minute, Continuous, or 15 min STEL
Resolution: 1 μg/m3
Data logging: 4000 records of STEL, Max, Min and average reading and k-factor

Environmental

Temperature Ranges

Operating: 32°F to 122°F (0°C to 50°C)
Storage: -4°F to 140°F (-20°C to 60°C)

General

Display: 2 line, 16-character LCD
Controls: 2-button
Logging: 4000 Record memory
Dimensions: 3.75W x 6.75H x 2.0D inches 9.5W x 17.2H x 5.1D cm
Weight: 24 oz. (0.67 kg)

Electrical

Light Source: Laser diode
Power: 7.2V Lithium Ion self-contained battery pack providing 30 hours of typical intermittent operation and up to 12 hours continuous use.
Charger: 100-240VAC Lithium Ion Charger 8.4VDC @ 1500mA typical.
Charging Time: Less than 3 hours
Communications: USB Mini BType
Standard Calibration: Arizona Road Dust. K-factors allow direct reading of other substances.
Safety Conformity:
• FDA / CDRH This product is tested and complies with 21 CFR, Subchapter J, of the health and Safety Act of 1968.
• European Community (CE) Directive 89/336/EEC EN 55011 Group 1, Class B (Emissions) and EN 55082-1 (Immunity)
• IEC 60825-1 Ed.1.1 (1998-01)
• EN 60825-1 W/A11 (1996)
• US 21 CFR 1040.10
Supplied: Operation manual, Charger with power cord, zero cap, spare filter, software and USB cable.
Optional: Carrying case and Rubber Protective Boot
Warranty: One year from date of shipment.

 

 

Part
Number

Standard Kits

810-1001-01-US

810-1001-02-Euro

Deluxe Kits

810-1003-01-US

810-1003-02-Euro

PM-2.5 Impactor

811-1004-01

 

X

PM-10 Impactor

811-1004-02

 

X

Charger

298-0027-01

X

X

Zero Cap

385-0114-01

X

X

Sheath Air Filter

385-0112-01

X

X

USB Coms Cable

297-0012-01

X

X

PC App/Manual CD

390-0048-01

X

X

Optional Accessories

   

Rubber Boot

375-0008-01

 

 

Carrying Case

375-0009-01

 

 

Tri-pod Mount

385-0117-01

 

 

What is Sheath Air and how does it work?
Sheath air is clean filtered air that surrounds the aerosol stream to prevent particulates from circulating or depositing within the optic chamber. Sheath air prevents contamination caused by build-up and deposits, improves response time by containing the sample, and improves maintenance by keeping the optic chamber clean.

From where does Sheath Air come?
The Nephelometer creates the sheath air by passing air through a zero filter before beginning the sample.

 

Sensidyne Nephelometer Competitive Advantages

  • Sheath Air
  • Instant Readings
  • Highly Sensitive
  • Data Logging
  • Extremely Portable
  • Low Cost-of-Ownership
  • Long-life Internal Pump
  • Site Monitoring PC Program
  • Selectable Sample Modes
  • Automatic Power Save

What is a Nephelometer?

The Nephelometer is an analytical instrument used to measure the light-scattering coefficient of atmospheric and indoor aerosols. Depending on design, a Nephelometer inherently has different levels of sensitivity. The main uses of Nephelometers relate to air quality measurement for pollution monitoring, climate monitoring, and visibility.

Types of Dust

  • Heavy Dust
    • The layer of dust on furniture and floors.
  • Settling Dust
    • Particulate’s in the air floating around before it turns into heavy dust.
  • Suspended Atmospheric Dust
    • Minute particles slowly settling or suspended by slight currents and existing in varying amounts in all air.

Airborne Particulate

Airborne particles are commonly either biological contaminants, particulate contaminants, gaseous contaminants, or dust. 

This chart shows the types and sizes of various particulate contaminants.   This information is helpful toward understanding the character of particulate pollution inside a building or in the ambient air.   It is also useful for understanding the cleanliness level in a controlled environment.  

Biological contaminants include mold, fungus, bacteria, viruses, animal dander, dust mites, pollen, human skin cells, cockroach parts, or anything alive or living at one time.  These are the biggest enemy of Indoor Air Quality specialist because they are contaminants that cause health problems.  Levels of biological contamination depend on humidity and temperature that supports the livelihood of micro-organisms.  The presence of pets, plants, rodents, and insects will raise the level of biological contamination. 

The Human Airway/Respiratory System

Inhalable particulate – Particles with an aerodynamic size cut point of 100 microns that deposit in the nose, mouth, pharynx, and larynx.

Thoracic particulate – Particles with an aerodynamic size cut point of 10 microns and deposit in the trachea and bronchus.

Respirable particulate – Particles with an aerodynamic size cut point of 4 microns and deposit in the lower portion of the lung sacks or bronchioles.

 

 

 

 

 

 

 

The Sensidyne Nephelometer is very easy to use! It is highly portable and allows for single-hand operation. The two button operation allows the user to select the sample mode, select the environmental factor, and begin the sample.

Charging Jack

Plug Lithium Ion charger module into the jack to charge the batteries.

Protective Inlet Cover

Protects the unit from dust entering inlet during storage.

Iso-kinetic Inlet

Reduces count errors due to mismatched sample flow velocity.

Flow Adjust

Adjusts the flow rate of the unit.  Factory Set.

USB Port

Connects instrument to a PC for downloading data and unit set-up.

ON/OFF Sample

Button to turn unit ON and Off and to start new sample.

Select / Mode

Button to select Environment and operation mode.

Zero Cap

Rubber cap used for zeroing instrument.

 

Sensidyne Nephelometer Competitive Advantages

  • Sheath Air
  • Instant Readings
  • Highly Sensitive
  • Data Logging
  • Extremely Portable
  • Low Cost-of-Ownership
  • Long-life Internal Pump
  • Site Monitoring PC Program
  • Selectable Sample Modes
  • Automatic Power Save