Level Transmitters : LU20
EchoTouch® Ultrasonic Level Transmitter
Application
CSA approved intrinsically safe for use in hazardous locations, the two-wire ultrasonic transmitter provides non-contact level measurement up to 18' or 5.4m, and is ideally suited for challenging corrosive, slurry or waste liquids. Push button calibrated, the transmitter is typically selected for atmospheric bulk storage, day tank and waste sump applications located within a classified area. Media examples include diesel fuel and sulfuric acid.
Features
Intrinsically safe transmitter for use in hazardous environments
LCD digital display indicates level in inches or centimeters
EasyCal simple push button calibration for all user set points
Polypropylene enclosure rated NEMA 4X with rugged PVDF transducer
Adjustable dead band and range filters eliminate false echo returns
Literature
Specifications
| Range: | 6" to 18' (15cm to 5.4m) |
| Accuracy: | ± 0.25% of range |
| Resolution: | 0.125" (3mm) |
| Dead band: | 6" (15cm) |
| Beam width: | 8° conical |
| Configuration: | Push button |
| Memory: | Non-volatile |
| Display type: | LCD, 4-digit |
| Display units: | Inch or cm |
| Supply voltage: | 12-32 VDC |
| Loop resist.: | 600 Ohms @ 24 VDC |
| Signal output: | 4-20 mA, two-wire |
| Signal invert: | 4-20 mA, 20-4 mA |
| Signal fail-safe: | Reverts to safe state during echo loss |
| Process temp.: | F: -4° to 140° C: -20° to 60° |
| Temp. comp.: | Automatic |
| Ambient temp.: | F: -40° to 140° C: -40° to 60° |
| Pressure: | 30 psi (2 bar) @ 25° C, derated @ 1.667 psi (.113 bar) per °C above 25° C |
| Enclosure rating: | NEMA 4X (IP65) |
| Encl. material: | PP, UL94VO |
| Conduit entrance: | Single, 1/2" NPT |
| Trans. material: | PVDF |
| Process mount: | 2" NPT (2" G) |
| Mount gasket: | Viton® |
| Classification: | Intrinsically safe |
| Compliance: | CE |
| Approvals: | CSA: Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III; T3C |
| Parameters: | CSA: Vmax < 32.0 V; Imax < 130 mA; Ca = 0 uF; La = 0 uH |
| Certificates: | CSA: LR 79326 |
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