Pulsar Guard 2010 non-invasive process monitoring sensor
The Pulsar Guard 2010 sensor detects structure-borne acoustic signals caused by the movement of material. This movement causes impacts and frictional contact with a containing face, eg, the inside of a pipe. The sensor is fastened to the outside of the structure and its high frequency detection picks up these signals, which are often undetectable to the human ear. The high-frequency detection allows use in environments where there is a high degree of machinery noise or process noise, without interference. The sensor’s non-invasive nature allows easy fit to most pipes, chutes or feed mechanisms without stopping the process.
The 2010 series of process protection units use ‘stresswave’ technology, to detect changes in structure-borne acoustic emissions from equipment and materials in motion. The sensor listens to noise caused by impacts and friction within structures, on a wide frequency bandwidth of 100 to 600 kHz, making it sensitive to the slightest changes in process conditions but also immune to noise and vibration caused by plant machinery.
Instant reaction to flow changes provides protection to plant operation from abnormal flow conditions in pipes, supply lines, chutes and feed machines. Fine powder in flight, in minute quantities, can generate a large acoustic signal enabling flow or no-flow alarms.
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