Processing Magazine

Switch probe senses presence, absence of material

September 5, 2007
New Series LTS Tilt Switch Probes are able to sense either the presence or absence of material when other sensors won’t work due to bin vibration, or actual walls aren’t available for mounting other types of measuring units. The probes are designed for use where the bulk material to be sensed is exposed or open. Typical applications include high or low level detection in large hoppers, silos, crushers or trippers, high level control under stackers, and detection of plugged conditions at conveyor transfer points. Series LTS units can also be used to detect the presence or absence of bulk material on belt conveyors, on chutes to indicate product flow, and to aid in loading rail cars or trucks. Tilt Switch Probes are available containing either a SPST, normally closed non-mercury switch. All probe models are airtight, dust tight, and waterproof. Series LTS probes feature a probe activation angle of 25° from vertical. The units come in a standard heavy-duty model as well as a compact model. The compact probe should be used for applications involving small bins and hoppers where space is limited, while the heavy duty probe should be used for applications where a heavy-duty abrasion-resistant probe is necessary.