© Siemens AG 2012 Level measurement Continuous level measurement — Ultrasonic transducers EchoMax XLT ■ Overview ■ Technical specifications Mode of operation Measuring principle Ultrasonic transducer Input Measuring range • XLT-30 0.9 ... 30 m (3.0 ... 100 ft) • XLT-60 1.8 ... 60 m (6.0 ... 200 ft) Output Frequency • XLT-30 22 kHz • XLT-60 13 kHz • Beam angle1) 5° Accuracy Temperature error EchoMax XLT transducers use ultrasonic technology to measure level in a wide range of bulk solids. ■ Benefits • • • • • Sealed aluminum face Integral temperature sensor Self-cleaning and low maintenance Connect using only two wires Easy to install ■ Application XLT transducers operate with Siemens SITRANS LU transceivers in measuring ranges from 0.9 ... 60 m (1.8 ... 200 ft) and temperatures up to 150 °C (300 °F). A beam angle of just 5° provides accurate readings in deep, narrow tanks. Compensated by transducers internal temperature sensor Rated operating conditions Ambient conditions • Ambient temperature - XLT-30 and XLT-60 -40 ... +150 °C (-40 ... +300 °F) Design Weight • XLT-30 4.3 kg (9.5 lb) • XLT-60 6.6 kg (14.5 lb) Material (enclosure) Aluminum, 304 stainless steel, polyester and silicone Degree of protection IP68 Color • XLT-30 and XLT-60 Red Mounting 1" NPT [(Taper), ANSI/ASME B1.20.1] With increased signal sensitivity, the XLT transducers from Siemens can operate in difficult applications such as limestone, cement clinker and hot stone. All models have a sealed aluminum face to withstand very harsh environments. Cable connection 2-core shielded/twisted, 0.5 mm² (20 AWG), silicone sheath Cable (max. length) 365 m (1 200 ft) with RG 62 AU coaxial cable During operation, EchoMax transducers emit acoustic pulses in a narrow beam. The level transceiver measures the propagation time between pulse emission and reception of the echo to calculate the distance from the transducer to the material. Temperature variations are automatically compensated by the integral temperature sensor. • Key Applications: bulk solids including limestone, cement clinker, hot stone and coal bunkers Certificates and approvals CE (EMC certificate available on request), CSAUS/C, FM, ATEX II 2G 1D T5 1) Definition of beam width: twice the angle at which the off-axis transmission is 3 dB less than the acoustic pressure level of the transmission axis (as measured equidistant from the sensor face). Siemens FI 01 · 2013 4/199 4 © Siemens AG 2012 Level measurement Continuous level measurement — Ultrasonic transducers EchoMax XLT Selection and Ordering data Order No. EchoMax XLT-30, XLT-60, ultrasonic transducer High-frequency ultrasonic transducer designed for a wide variety of liquid and solid applications, for use with approved controllers. Includes integral temperature sensor. Measuring range: min. 0.9 m, max. 30 m Process connection: 1" NPT [(Taper), ANSI/ASME B1.20.1] Order code Further designs Please add "-Z" to Order No. and specify Order code(s). Acrylic coated, stainless steel tag [13 x 45 mm Stainless steel tag [69 x 50 mm (2.71 x 1.97 inch)]: Measuring-point number/identification (max. 27 characters) specify in plain text Y15 Operating Instructions Order No. Quick start manual, multi-language 7ML1998-5QS81 77E70 7ML1998-5HV61 Facing XLT-30 XLT-60 XLT-30, nylon Applications Guidelines, multi-language Note: The Applications Guidelines should be ordered as a separate line item on the order. 0 1 2 This device is shipped with the Siemens Milltronics manual CD containing the complete ATEX Quick Start and Operating Instructions library. XLT-60, nylon 3 Accessories XLT-30 7ML1141- XLT-60 4 Selection and Ordering data 7ML1145- Cable length 1 m (3.28 ft) 5 m (16.40 ft) 10 m (32.81 ft) A B C Tag, stainless steel with hole, 12 x 45 mm (0.47 x 1.77 inch), one text line for fastening on sensors 7ML1930-1BJ Easy Aimer 2, 1" NPT galvanized 7ML1830-1AP 7ML1830-1AU 20 m (65.62 ft) 30 m (98.43 ft) 50 m (164.04 ft) D E F Easy Aimer 304 with stainless steel coupling Easy Aimer 2, aluminum with M20 adapter and 1" and 1½" BSPT aluminum couplings 7ML1830-1AX 70 m (229.66 ft) 80 m (262.47 ft) 90 m (295.28 ft) G H J Easy Aimer 304, with M20 adapter and 1" and 1½" BSPT 304 SS couplings 7ML1830-1GN 100 m (328.08 ft) K Approvals ATEX II 2G 1D, CSA Class I Div. 1, FM Class I Div. 2, CE 4/200 Siemens FI 01 · 2013 3 © Siemens AG 2012 Level measurement Continuous level measurement — Ultrasonic transducers EchoMax XLT ■ Dimensional drawings ■ Schematics Earth connection screw clamp (1 place) 1” NPT Safety connection 9 (3/8) diam. hole (2 places) Direct connection Black h White Shield d Coaxial connection White Easy aimer (typical model) Shield Safety chain Earth connection 3 terminal direct* Black Mounting - liquid applications Shield Flexible conduit White Flexible conduit Plate or bracket Coupling 3 terminal extension* To nearest earth Safety chain Black Transducer White Shield Ripple welded to blind flange Coupling Blind flange To nearest earth * For SITRANS LUT400, SITRANS LUC500, MultiRanger 100/200, HydroRanger 200 XLT ultrasonic transducer connections Safety chain Earth connection XLT ultrasonic transducer, dimensions in mm (inch) XLT-30 XLT-60 d 264 mm (10.4 inch) 335 mm (13.2 inch) h 249 mm (9.8 inch) 324 mm (12.75 inch) Siemens FI 01 · 2013 4/201 4