| Performance |
| 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 |
| PM Mass Resolution Measurement Range |
0.1 - 10,000 µg/m3 |
| Mass Measurement & Display Resolution |
0.1 µg/m3 |
| Precision |
±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) |
| Electrical |
| T640 instrument |
100 - 230VAC 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) |
| Certifications |
| 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 |