Cảm biến báo mức đa điểm Princo Instruments L2720
PRINCO’s L2720 Versa-Point™ gives you the option of either four independent set points or zone control with two additional set points. When set up as a four-point level controller, it is an ideal multiple point level alarm for applications requiring high alarm, high-high alarm, low alarm, and low-low alarm, all operating from a single probe. As a zone control with two additional level points, it is ideal for lift stations, batching operations, and industrial sumps. Both set points, which define the zone as well as the two level points, are independently adjustable. Mode of operation for zone control may be selected for either pump-up or pumpdown. Likewise, the level points, whether high or low, may always be operated failsafe. The zone may occupy virtually any portion of the overall range, from 1 to 100 percent. Location of the level points may also be anywhere in the overall range, outside or inside the zone. All set points and zone limits may be independently set for either high or low fail-safe. • Wide Range of Applications– The ideal multiple-point controller. It operates in conjunction with process products which range from electrically insulating materials, such as refined oils, to conductive slurries; even sticky materials that tend to cling to the probe. • NULL-KOTE™ Circuitry – Makes the sensor immune to adverse effects of conductive coating build up. • Designed to Survive – RF immune, vibration-proof, and conformally coated (tropicalized) circuit boards for additional protection – at no extra cost. • High or Low Fail Safe - Field selectable for each point. • Flexibility - Each point and zone can be adjusted for any point on the probe. • Unique (two color) Status LED - Indicates presence or absence of material. • Easy to Install – Probe and electronics install as single unit. No cable, delicate connectors, or separate enclosure. • Wide Temperature Range – Standard process temperature: -300 to 500°F (-184 to 260°C). • Quick Calibration – Easy, rapid set up and adjustment. Factory precalibration available. • Easy-On Probe Connection – Automatically provides simple, fast installation and reliable operation without wires, connectors, or terminal strips. Simply screw probe into the housing. • Explosion-Proof/Weatherproof Housing – Class I, II, III, Div.1, Groups C, D, E, F, & G - NEMA 4. • Ten-Year Warranty – The only level instruments available with this unique assurance of quality. Instrumentation designed with the user in mind • Water-based liquids • Acids • Hydrocarbons and solvents • Powders and granulars • Oils