CSA approved intrinsically safe for use in hazardous locations, the two-wire ultrasonic transmitter provides non-contact level measurement up to 18', 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. The transmitter is calibrated in less than a minute using the LCD display, 4-button interface and intuitive calibration menu. All user set points are held in nonvolatile memory. In the event of acoustic signal loss, the transmitter will hold the current output at the user designated safe state. Range: 6" to 18'. Accuracy: +/- 0.25 percent span in water. Resolution: 0.125". Dead band: 6". Beam width: 8 degree conical. Configuration: push button. Memory: Non-volatile. Display type: LCD, 4-digit. Display units: Inch or cm. Supply voltage: 12 to 32 VDC. Loop resistance: 600 Ohms at 24 VDC. Signal output: 4-20 milliampere, two-wire. Signal invert: 4-20, 20-4 milliampere. Signal fail-safe: reverts to safe state during echo loss. Process temprature: -4 to 140 degreeF. Temprature compensation automatic. Ambient temprature: -40 to 140 degree. Pressure: 30 psi at 25 degreeC, derated at 1.667 psi per degreeC above 25 degreeC. Enclosure rating: NEMA 4X(IP65). Enclosure material: polypropylene. Conduit entrance: Single, 1/2" NPT. Translucent material: PVDF. Process mount: 12.7 millimeter NPT. Mount gasket: Viton. Classification: intrinsically safe. Compliance: CE. Approvals: Class I, Groups A, B, C and D; Class II, Groups E, F and G; Class III; T3C. Parameters: CSA: Vmax < 32.0 V; Imax < 130 milliampere, Ca equal to 0 microfarad; La equal to 0 microhenry. Certificates: CSA: LR 79326.