Flowline AV56S243abcdef

Application The general purpose ultrasonic level sensor provides continuous level detection up to 26.2’ (8m) with 3 programmable relays for level switch or level control functions, and is configured via the integral push button display module. Each relay can be configured on a single set point (high level alarm or low level alarm) or latched on two set points for automatic fill or empty in simplex (one pump or valve), duplex (two pumps) or triplex (three pumps) level control modes with selectable time delay and fail-safe logic. The embedded level controller can lower cost by replacing external control hardware. This non-contact liquid level sensor is ideally suited for corrosive, sticky or dirty liquids, and is broadly selected for pump lift station, sump and day tank level applications. Specifications Range LU77: 4” to 9.8’ (10cm to 3m) LU74: 8” to 18.0’ (20cm to 5.5m) LU78: 8” to 26.2’ (20cm to 8m) Repeatability: 0.25” (6.35mm) Dead band LU77: 4” (10cm) LU74/78: 8” (20cm) Beam width LU77: 2” (5cm) LU74/78: 3” (7.6cm) Configuration: Push button Memory: Non-volatile Display type: LCD, 6-digit Display units: Inch, cm, percent, feet or meter Supply voltage: LU7_-50_5: 95-250 VAC Power:20 watts @ 120 VAC Contact type: (3) SPDT relays Contact rating: 60 VA, 1A maximum Contact fail-safe: Open, close or hold last Process temp.: F: -4° to 140° (C: -20° to 60°) Temp. comp.: Automatic Ambient temp.: F: -40° to 160° (C: -40° to 71°) Pressure: MWP = 30 PSI (2 bar) Enclosure rating: NEMA 4X (IP65) Encl. material: Polycarbonate Encl. hardware: Brass & stainless Enclosure vent: Water tight membrane Trans. material: PVDF Conduit entrance: Dual, 1/2” NPT Process mount LU77: 1” NPT (1” G) LU74/78: 2” NPT (2” G) Mount gasket: Viton® Classification: General purpose Compliance: CE, RoHS Features Offered in 3 level detection ranges from 9.8’ (3m) to 26.2’ (8m) Configuration is simple via integral push button display module Three programmable relays for switch, pump control and fail-safety 1 pump or valve with 2 alarms 2 pumps (lead-lag) with 1 alarm 2 pumps (duplexing) with 1 alarm 3 independent switch point alarms LCD display indicates level height in engineering units and relay status Narrow 2” or 3” beam width for applications with limited measurement space Short 4” or 8” dead band maximizes the measurable filling capacity of the tank PVDF transducer and NEMA 4X polycarbonate enclosure for corrosive liquids Automatic temperature compensation for accurate measurement
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