This personal dust monitor is a real-time, portable respirable dust monitor that alerts mine workers to dangerous amounts of dust exposure.
A respirable, personal dust monitor created exclusively for mining applications in the United States allows users to monitor coal dust exposure in real time. The Thermo Scientific™ PDM3700 Personal Dust Monitor has waterproof battery protection, PC-based software for data downloading and reporting, and an integrated charger with a download and station for PC interface.
This technology is the only CPDM that meets the most recent MSHA Dust Rule criteria.
- Industry-standard sampling inlet
- Integral charger with download station for PC interface
- Ergonomic and lightweight
- Waterproof battery protection
- PC-based software for data downloading, review of status flags, and MSHA reporting
PDM3700 Personal Dust Monitor. Image Credit: Thermo Fisher Scientific – Environmental and Process Monitoring Instruments
Reduce Exposure to Dust
The PDM3700 monitor is designed to provide fast, high-quality personal dust exposure information while also protecting miners' health by measuring shift-average respirable coal dust exposure when it approaches regulatory limits. The PDM3700 real-time dust monitor, which provides mine workers and management with tools for personal coal dust monitoring and exposure reduction, is the first line of defense in preventing long-term health impacts.
Real-Time Measurement
The PDM3700 monitor measures three major parameters in real time: primary current mass concentration, primary cumulative mass concentration, and percent of limit. Two secondary user-initiated measurements are also provided, which can be carried out without interfering with the original sample.
The battery-operated PDM3700 begins by obtaining a continuous sample of air from the breathing zone. It then eliminates any particles greater than respirable size and determines the mass of the dust, which is collected on an exchangeable filter.
Lower Per-Sample Cost
Dust exposure results are calculated automatically, avoiding the requirement for filter transportation and handling procedures associated with the manual gravimetric approach. This automated technology costs substantially less per sample than human sampling and provides continuous information availability.
Designed for the Mine Environment
The PDM3700 personal dust monitor, which has been proven underground due to the success of the PDM3600 monitor, also provides accurate, continuous information on personal respirable dust exposure. The sturdy, belt-mounted casing, consisting of static dissipating housing, is capable of meeting the demands of the normal mining environment.
Specifications
Source: Thermo Fisher Scientific – Environmental and Process Monitoring Instruments
| Specifications |
| Accuracy |
25 % of the reference method (for concentrations greater than 0.2 mg/m3)
Minimum dust loading: 0.1 mg (to achieve specification)
Maximum dust loading: 4 mg (to achieve specification)
Accuracy only valid within operating temperature of -4 ° to 104 °F (-20 ° to +40 °C) and with a relative humidity from 0 % to 100 % |
Certifications/
Compliance |
- NIOSH approval number TC-74CPDM-01
- Certified intrinsically safe by the Mine Safety Health Administration (MSHA) (19-A040002-0)
- EN61326-1:2005 - Pending
- FCC Part 15 subpart B - Pending
- UN T1-T8 (shipment of lithium ion batteries)
- The PDM3700 Charger complies with the ANSI/UL 1012 standard for power units other than Class 2, 7th Edition (4/29/05) - Pending
|
| Concentration Display Averaging Time |
30 minutes |
Concentration
Measurement Range |
0–200 mg/m3 3 primary displays:
1) 30 minute average
2) cumulative concentration average to the point of measurement
3) shift concentration average |
| Data Points |
Minimum of 30 shifts |
| Depth (Imperial) |
3.25 in. |
| Depth (Metric) |
8.26 cm |
| Description |
PDM3700 Personal Dust Monitor |
| Electrical Requirements |
One internal lithium ion battery assembly |
| Height (Imperial) |
6.75 in. |
| Height (Metric) |
17.15 cm |
| Particle Size Range |
Less than 4.5 um |
| Resolution |
0.01 mg/m3
Mass concentration sensitivity:
0.05 mg/m3 (one sigma) 30 second averaging |
| Weight (Imperial) |
4.41 lb. |
| Weight (Metric) |
2.0 kg |
| Width (Imperial) |
9.57 in. Sampling tube: 36.0 in. ± 0.25 in. |
| Width (Metric) |
24.31 cm
Sampling tube: 91.44 cm ± 0.635 cm |
| Flow Rate |
2.2 L/min. |
| Unit Size |
Each |
Video Credit: Thermo Fisher Scientific – Environmental and Process Monitoring Instruments