Echotel® Model 910 Ultrasonic Level Switch DESCRIPTION Echotel® Model 910 Level Switches utilize ultrasonic contact technology for measuring level in clean liquid applications. The dual conduit electronics houses an 8-amp DPDT gold flash relay that is field selectable for high or low level fail-safe applications. There are no moving parts that come in contact with the medium. The Echotel Model 910 is an integrally mounted system, comprised of surface mount electronics and a 316 stainless steel transducer. Hazardous area location approvals are available from FM, CSA, and ATEX. FEATURES • Single rod design eliminates clogging • Measures level within 0.25” (6 mm) from the end of the tip-sensitive transducer gap • 8-amp DPDT gold flash or 5-amp DPDT hermetically sealed relay • Surface mount conformal coated electronics • FM, CSA, and ATEX approved for hazardous locations • Variety of mounting options including NPT and BSP threaded, flanges and hygienic connections APPLICATIONS • Seal Pot Level • 316 stainless steel transducer • High Level Alarm • Mounted horizontally or vertically • OEM/Skid Packages • Compact dual conduit cast aluminum electroni

TECHNOLOGY The Model 910 Level Switch uses ultrasonic energy to detect the presence or absence of liquid in a 316 stainless steel tip sensitive transducer gap. The basic principle behind ultrasonic contact technology is that high-frequency sound waves are easily transmitted across a transducer gap in the presence of a liquid medium, but are severely attenuated when the gap is dry. The Model 910 uses an ultrasonic frequency of 3 MHz to perform this liquid level measurement in a wide variety of process media and application conditions. Ultrasonic transducer Transmit crystal The transducer uses...

MODEL NUMBER 4 | HOUSING A Aluminum sand cast with 3⁄4" NPT dual conduit, FM/FMc approvals Aluminum sand cast with 3⁄4" NPT dual conduit, FM/FMc/ATEX/IECEx approvals Aluminum sand cast with M20 dual conduit, FM/FMc/ATEX/IECEx approvals 5 | TRANSDUCER UNIT OF LENGTH 1 English (actuation length in inches) – CRN Available Metric (actuation length in centimeters) 6 | PROCESS CONNECTION A 1" 150 lb. ASME raised face flange 11⁄2" 150 lb. ASME raised face flange 2" 150 lb. ASME raised face flange 1" 300 lb. ASME raised face flange 11⁄2" 300 lb. ASME raised face flange 2" 300 lb. ASME raised face flange...

AGENCY APPROVALS Explosion Proof / Dust Ignition Proof US/Canada: FM19US0170X/FM20CA0034X Class I, Div 1, Groups B, C, D T6 Class II, III, Div. 1 Groups E, F, G T6 SINGLE SEAL Type 4X US: Class I, Zone 1 AEx db IIC T6 Gb Canada: Ex db IIC T6 Gb SINGLE SEAL -40ºC ≤ Ta ≤+70ºC Probes > 60 inches Ta = -20°C ≤ Ta ≤ 70°C IP66 Flame Proof ATEX – FM20ATEX0005X Integral: II 2 G Ex db IIC T6 Gb -40ºC ≤ Ta ≤+70ºC Probes > 60 inches Ta = -20°C ≤ Ta ≤ 70°C IP66 IEC IECEx FMG20.0004X Ex db IIC T6 Gb -40ºC ≤ Ta ≤+70ºC Probes > 60 inches Ta = -20°C ≤ Ta ≤ 70°C IP66 Non-Incendive US/Canada US: Class I Div. 2,...