Ametek Land 4750-PM, User Manual

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3 - 1 User Guide
Particulate Measurement System 4750-PM
3
Product Description
3.1 About the 4750-PM
The 4750-PM backscatter sensor with two external status indicators and
protected, internal user controls is suitable for measuring dust concentrations
and monitoring filter performance in medium to large stacks or ducts
for industrial and combustion processes. The sensor can measure dust
concentrations as low as 0.1 mg/m³, making it particularly suitable for the
low dust levels found after bag filters. It is unaffected by changes in flue gas
velocity associated with variable speed fans or plant-load changes and, for a
given particle size and type, the instrument response is proportional to dust
concentration.
The instrument has been designed to comply with the TUV suitability testing
scheme to EN 15267 and, due to its wide dynamic operating range, may be
used in higher dust loading applications as well as for process optimization
applications.
3.2 Components
3.2.1 4750-PM Sensor
1 Sensor enclosure with hinged lid 5 Purge Air Flow sensor
2 Hinged sensor body 6 Purge air supply (flexible tube with
hose clip)
3 Inbuilt flange (sensor-to-stack
connection)
7 M20 cable glands (3 off)
4 Quick-release clamp 8 Sensor interface with external status
indicators (2 off)
Fig. 3-1 4750-PM Sensor