T640 PM
Mass Monitor

with NumaView™ Software

The Model T640 PM Mass Monitor is the next breakthrough in ambient particulate monitors​.


The Model T640 PM Mass Monitor is the next breakthrough in ambient particulate monitors​. The T640 delivers 1-min or better time resolution with exceptional sensitivity and precision. The instrument is very low maintenance and requires no sample media for minimal cost of operation.​

The Teledyne API Model T640 with 640X Option is a real-time, continuous particulate matter (PM) mass monitor that uses scattered light spectrometry for measurement. The T640 measures 2.5 PM, and the 640X Option measures 2.5, 10, and coarse PM. ​​​

All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports either locally or by remote connection.

The Model T640 comes with NumaView ™ software. NumaView™ Remote PC software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView ™ software.​

  • Continuous, real-time PM10 and PM2.5 mass concentration results
  • Simple set-up and 10-minute warm up time
  • Superior measurement sensitivity and precision
  • Long autonomy and low power consumption
  • Low maintenance and cost of operation
  • US EPA-approved
Measurement Principle
  • Broadband spectroscopy using 90°
    white-light scattering with Polychromatic LED
Particle size resolution
  • 256 sizes over 0.18 – 20µm range,
    combined to 64 channels for mass calculation
PM Mass Measurements
  • PM10, PM2.5 and PM10-2.5 simultaneously;
  • PM1 (optional)
PM Mass Resolution Measurement Range
  • 0.1 – 10,000 µg/m3
Mass Measurement & Display Resolution
  • 0.1 µg/m3
  • ±0.5 ug/m3 (1-hr average)
Lower Detectable Limit
  • <0.1 ug/m3 (1-hr average)
Data Rate
  • 10s to 48hr (user selectable)
Mass Concentration Accuracy
  • Exceeds US EPA PM10 FEM and Class III FEM PM2.5
    performance requirements for additive and
    multiplicative bias compared to FRM samplers
Flow Rate
  • 5.0-lpm sample flow (Standard model);
  • 11.67-lpm optional bypass flow (with option 640x)
Flow Accuracy
  • Within ±1%; (Typically within ±0.5%)
Operating Conditions
Operating Temperature
  • 0 – 50°C, non-condensing
Ambient Temperature
  • -40 – 60°C
Ambient Relative Humidity
  • 0 – 100%
Sample Humidity Control
  • 24VDC, 90W (max) heater controlled to 35% RH
Weatherproof enclosure required with 0 – 50°C, non-condensing environmental control
Requires only 10-min warm-up time
Interfaces and Data Storage
T Series analyzer interface with full touch screen display and NumaView™ premium operating software and NumaView™ remote software
4Gb memory allows for > 1 year of internal data storage
Front Panel USB Ports
  • 2x type-A Peripheral Ports
Ethernet Communication (supports TCP/IP Modbus and HTTP polling protocols)
T640 instrument
  • 100 – 24​0VAC 50/60Hz, Power consumption
    < 120W @ 120VAC
External pump (for optional bypass flow – option 640x)
  • 100 – 120VAC 60Hz or 220-240VAC 50/60Hz,
    Power consumption <360W @ 120VAC
Physical Specifications
Unit dimensions (HxWxD)
  • 7” x 17” x 14” (17.8 x 43.2 x 35.6 cm)
Unit weight
  • 19 lbs (8.6 kg)
Sample heater tube height
  • 43” (109 cm)
Sample heater tube weight
  • 6 lbs (2.7 kg)
  • US EPA PM2.5 Federal Equivalent Method EQPM-0516-236
  • US EPA PM2.5 Federal Equivalent Method EQPM-0516-238*
  • US EPA PM10 Federal Equivalent Method EQPM-0516-239*
  • US EPA PM10-2.5 Federal Equivalent Method EQPM-0516-240*

*with 640x option

The following table provides a list of items that need regular maintenance to ensure your product remains in good working condition.

Got any Questions?
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(+603) 7845 4566


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