The GRIMM Aerosol Technik MCERTS Environmental Dust Monitor (Model EDM 280) is an optical aerosol spectrometer with a unique detection limit and excellent counting efficiency. Suitable for real-time PM monitoring under any environmental conditions.
Features
- Suitable for Particulate Matter monitoring under any environmental conditions and at all sites (traffic, urban, background, maritime, mountain and others)
- Approved emission measuring device for particulate matter PM₁₀ and PM2.5 in air monitoring networks
- Source apportionment with high time resolution for air pollution control strategies
- Insensitive to vibrations, therefore also suitable for installation in measuring vehicles
- Robust design, energy efficient and lowest running costs
- Low maintenance due to internal particle-free purge-air circuit to protect the optical components
- Fits in all existing EDM (180, 180+) installations
- Stand-alone option with fully air-conditioned weather protection housing (construction site monitoring, port facilities, etc.)
How it works
The EDM 280 is based on the measuring principle of scattered light detection of single particles by a laser diode. The detection volume is aerodynamically focused (ISO21501-1), there is no edge zone error. The unique detection limit of 0.1 µg/m³ and excellent counting efficiency of the EDM 280 are worth mentioning.
Also special is its mass concentration range, which is 0 to 12,000 μg/m³ for PM₁₀. Real-time monitoring of particulate matter levels TSP, PM₄, PM₂.₅, PM₁ as well as PMCoarse is also possible.
In addition, the total particle count (TC) and particle number distribution can be determined.
Servicing
Datasheet
MCERTS Environmental Dust Monitor (Model EDM 280)
Specifications
- Detection principle Light scattering at single particles with diode laser; detection volume aerodynamically focused (ISO 21501-1), no border zone error
- Measured mass fractions TSP, PM₁₀, PM₄, PM₂.₅, PM₁, PMcoarse
- Particle size range 0.178 µm < Do < 29.4 µm (Do = optical latex equivalent diameter)
- Size channels 72, channel boundaries equidistant, 32 channels per decade
- Mass concentration 0 … 12,000 μg/m³ for PM10 0 … 5,100 μg/m³ for PM2.5 (with 10 % coincidence error for Arizona Dust A1 ultrafine)
- Detection limit 0.1 μg/m³ for PM10 Zero level ≤ 0.1 μg/m³
- Sample volume flow 1.2 l/min, accuracy ≤ ±2%, constant at the orifice plate by regulation Internal purge air 0.3 to 0.5 l/min, protection of laser optics, reference air for self-test
- Storage interval Selectable, 6 seconds, 1, 5, 10, 15, 30, 60 minutes, daily average value
- Data interfaces RS-232 (selectable up to 115,200 baud/s), USB-B, Ethernet, USB flash drive (USB 2.0), data logger Data protocol (ASCII) GRIMM protocol, Modbus TCP, GESYTEC/Bayern/Hessen Protocol
Met sensor
- Temperature: –50 … 60 °C, ±0.2 °C (–20 … 50 °C), otherwise ±0.5 °C (> –30 °C)
- Relative humidity: 0 … 100% RH, ±2% RH
- Air pressure: 300 … 1200 hPa, ±0.5 hPa (0 … 40 °C)
- Operation Via touch display or PC via data interface
- Power supply Wide range power supply 100 … 240 VAC at 50 … 60 Hz, 4 A
Power consumption
- Typical 25 W (continental warm)
- Typical 40 W (tropical humid)
- Typical 80 W (polar cold)
- Typical 220 W (maximum equipment, all heaters at maximum power)
Conditions (sample air on site)
- Temperature: –40 … 60 °C
- Relative humidity: 100% (–40 °C) … 30% (60 °C) or maximum 60 g/m³ absolute humidity
- Ambient pressure: 530 … 1,080 hPa Conditions (measuring container)
- Temperature: 5 … 40 °C
- Relative humidity: 5 … 90%, non-condensing
- Transport and storage –20 … +50 °C, RH < 95% (non-condensing)
- Dimensions (H x W x D) • 19″ spectrometer: 180.5 x 434 x 320 mm • Sample tube holder: 88.9 x 441 x 156 mm • Sample tube with sampling head: 1500 (L) x Ø 45 (tube) / Ø 105 mm (Sigma-2 sample inlet)
Weight
- Total: 20.5 kg (with met sensor 157 L, 2.35 kg)
- 19″ spectrometer: 10.45 kg
- Sample tube holder: 2.4 kg
- Sample tube with sampling head: 5.3 kg
