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General Information News Workshops Head Office About us Contact Us Company Policy Company History General Catalogue pH and ORP 100 Chlorine, disinfection 190 Data processors 200 Conductivity 300 Water hardness 375 Turbidity 400 Oxygen 450 Level 500 Temperature 600 Flow 700 Pressure 800 Plastic Valves 900 At a glance EchoTREK, Ultrasonic Level Transmitter on open channel General Catalogue 755-03 Previous Page Starting up Notice PDF Version : GB SP CN Next Page EchoTREK EchoTREK, Ultrasonic Level Transmitter on open channel - Compact level transmitter - Measuring height up to 6 m       Dead zone of 25 cm       Adjustable range for the 4-20 mA output signal - Programmable relay output (autodiagnostic or alarm) DESCRIPTION Compact, this ultrasonic sensor is reliable and accurate. It exists also in a HART protocol version. This sensor is equiped with the QUEST+TM advanced research system. The processor allows the aspect analysis of the liquid surface to obtain a reliable level measurement. A 4-20 mA ouput signal is easily calibrated with a magnet key. For a complex programmation, the SAP100 display unit allows the access to all parameters. The bargraph function could be dedicated to the measurement or echo signal reception quality. TECHNICAL FEATURES Housing: cast aluminium alloy Sensor: PPh Connection: BSP 2" Protection:       IP67 for housing       IP68 for sensor Power supply: 85...265 V AC / 6 VA Accuracy: ±0.2% Range: 0.25 to 6 m Emiting angle: 5° Temperature limits: -30°C to +90°C Signal frequency: 80 kHz Relay: 250 V AC, 3 A Output signal: 4-20 mA / 600 Ohms (galavanic isolation) Electrical protection : Class 1 MEASURING IN OPEN CHANNEL For an easiest installation and use with an open channel (venturi or “V” notch), it is better to ask for a free factory calibration when the SAP 100 display unit is not is not ordered at the same time. After fiting the EchoTREK on its stand, it is possible to adjust the 4/20 mA output using the magnet key. Ultrasonic Level Transmitter on open channel EchoTREK General Catalogue 755-03

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