Environmental Monitoring Solutions
4500 MkIII is the most accurate and reliable continuous opacity monitor available, combining AMETEK Land’s ground-breaking innovation and simple design for precise, problem-free operation.
Unmatched, class-leading accuracy ensures compliance limits for dust emissions and stack opacity are met with confidence. This avoids the risk of regulator fines while lowering costs through operational efficiencies.
The 4500 MkIII employs a highly homogenous LED light source to minimize sensitivity to optical misalignment. The multi-prism retro-reflector reduces thermal drift for the lowest possible detection limit. Together with a flood LED to minimize electronic drift, these patented technologies provide you highly stable, highly accurate results.
Fitting stack diameters of 0.3m-15m (1 ft-50ft), 4500 MkIII is suitable for the continuous monitoring of dust and opacity in boilers, heaters, furnaces and other combustion applications in the power generation, hydrocarbon processing, industrial boilers, and steel industries.
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EASY TO OPERATE
The built-in menu display is intuitive and simple to use, with simultaneous text and icon prompts. There’s no need to take a laptop or handheld terminal to the installation location, making setup and operation hassle-free.
UNMATCHED CONTROL OPTIONS
4500 MkIII has all the compatible accessories you need to tailor it to your process. Options include a control room unit, auxiliary functions unit, fail-safe shutters and calibration accessories, as well as a range of mountings and adaptors for existing fittings.
| Measuring Technique | Double pass transmissometry |
| Operating Wavelength | 520 ± 20 nm |
| Light Source | Pulsed High Intensity LED |
| Measurement Range | Opacity 0-10 % to 0-100 %; Optical Density 0 – 0.1 to 0-3.0; Dust Density 0-15 to 0-1000 mg/m3 (at 5 m pathlength) |
| Calibration Error | 1.5 % opacity |
| Drift (long term) | < 0.3 % opacity / month |
| Thermal Stability | 0.6 % opacity / 22 ° C ambient change |
| Angle of Projection | < 2 ° |
| Angle of View | < 2 ° |
| Response Time | ≤10 s to 95 % |
| Averaging | Selectable from 10 s to 24 hr (1 s increment) |
| Pathlength | 0.5 to 10 m / 20 in to 32 ft (extended pathlengths to 15 m available) |
| Calibration | Automatic zero and upscale check (selectable period 1 to 24 hr in 1 hr increments) |
| Zero Correction | Automatic correction for zero drift |
| Control Panel Display | 128 x 64 pixel reflective backlit LCD |
| Control Panel Keypad | 4 keys for data input |
| Control Panel Indicators | Power, System OK, Alarm, Calibration |
| Operating Temperature | -40 to 55 °C / -40 to 131 °F |
| Max. Flue Gas Temperature | 600 °C / 1112 °F |
| Max. Flange Temperature | 200 °C / 392 °F |
| Flue Gas Water Content | Not sensitive to water vapor. Condensed water must not be present in the measurement path. |
| Electrical Safety | IEC / EN 61010-2 |
| EMC | EN 50 081 & EN50 082 |
| Sealing | IP65 / NEMA4X |
| Modbus Interface | RS485; Opacity, Optical Density, Dust Density and Status information available |
| Analog Outputs | Isolated 4 to 20 mA Configurable as Opacity, Optical Density, Dust Density |
| Relay Outputs | System OK, Calibration, Alarm |
| Relay Rating | 1 A @ 24 Vdc |
| Power Supply | 24 Vdc nominal (18 to 30 Vdc), 0.3 A nominal (3 A startup) |
| Transceiver Dimensions (Hx W x D) | 191 x 291 x 413 mm / 7.5 x 7.9 x 16.3 in |
| Retro-reflector Dimensions (H x W x D) | 101 x 201 x 237 mm / 7.5 x 7.9 x 9.3 in |
| Transceiver Weight | 6 kg / 13.2 lbs. |
| Retro-reflector Weight | 3 kg / 6.6 lbs. |
| Enclosure | Cast Aluminum, epoxy coated |
| Accessories | Fail-safe Shutters, Blowers, Adapter Flanges, Remote Control Units, Additional Outputs Available |
| Approvals | QAL 1, EN 15267, EN 13284-2 |
| Performance Specifications | ASTM D6216, US EPA PS-1, PS-11, Procedure 3 |
COMPLETE COMPLIANCE
The 4500 MkIII achieves the highest possible specification for the fundamental performance parameters for a compliance opacity monitor, as defined by the internationally-recognised ASTM D6216 Standard. Its performance has been independently verified, meeting QAL 1 requirements according to EN 15267-3.
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Continuous Emissions
