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 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.
MCERTS APPROVAL

Complete Complicance

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.

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

 

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