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Archive for the ‘Water Monitoring Instruments’ Category

Environmental Monitoring Sensors

December 14th, 2009
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Water Level Measurement Products

Water level sensorSemrad Pty Ltd is the sole Australian distributor of WaterLOG® environmental products. The range of products is cost effective and technically advanced, designed for the measurement and control of liquid levels. It includes water sensors, data collection platforms, gas bubbler systems, rain gauges, SDI-12 interfaces, precision inclinometers, communication products and data loggers.

With a wide range of sensing technologies, logging solutions, data collection and transmission, the equipment provides complete application coverage. Their water level measurement solutions range from small farm devices (farm tanks and irrigation systems) to large government installations such as dam floodgates and outflow.

 

Sensors

Example Tipping Bucket Rain GaugeThe WaterLOG® H-331 is a dual interface digital shaft encoder that measures water level by monitoring the position of a float and pullet. It has a built-in LCD display with a ‘Push to Read’ button and high-speed encoder circuitry that prevents missing counts due to rapid movement from wave action or sudden movement in freeze/thaw conditions. It is battery powered with low current operation (less than 800 microamps on typical standby), has zero backlash and a sealed enclosure to protect the electronics. It can operate in a temperature range of -40 to +60° C and its dual bearing design comes with special low temperature lubricant. It has 200 counts per revolution for the DSI-12 output, multiple sensors on a three-wire cable and a threaded shaft compatible with mechanical shaft encoder wheels.

The WaterLOG® H-340 is a precision tipping bucket rain gauge, housed in durable extruded aluminium with a one-piece cast base. A magnetic reed bucket tip sensor provides standard switch closure output. It has precision bucket bearings, a removable stainless steel funnel screen, and side windows to allow inspection of the mechanism without removing the cover. It can be used to accurately measure rainfall, monitor storm water run off and in other meterological applications.

Author: indicatorgauge Categories: Water Monitoring Instruments, level sensors Tags: , ,

Industrial Sensors

November 23rd, 2009
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Industrial Sensors

H-350 LITE Pressure Measurement SensorSemrad Pty Ltd has produced hundreds of industrial process, municipal and OEM (Original Equipment Manufacturer) solutions, with expertise in level switches, sensors and transmitters for harsh acid, caustic and chemical environments. Their broad range of sensing technologies provide complete application coverage with unmatched user flexibility. Their precision instruments can be applied in most liquid and bulk solids process industries, such as semiconductor, chemical, water, wastewater, mining, metal finishing, beverage, electronic, material handling, agricultural, paper, textile, pharmaceutical, medical and environmental.

With unparalleled hands-on experience, Semrad’s engineers can assist you in the selection and process integration of our equipment. These include configurations ranging from general purpose, to hazardous, non-contact and invasive, with a variety of relay controller and installation accessories.

WaterLOG ® Sensors

Dual Interface Shaft EncoderThe WaterLOG® H-350-LITE is a NIST (National Institute of Standards and Technology) traceable pressure reference with accuracy better than 0.02% FSO (Full Scale Output). This unit combines high accuracy and low cost, and the only choice  for replacing mercury manometers. It feaures a SDI-12 sensor, built in temperature compensation, an operating temperature range of -40 to +60° C and the ability to directly interface with Sutron 8004 DCP. The accuracy drift is less than ± 0.05% of FSO per year and its response time is a 16 second measurement sequence.

The WaterLOG® H-330 is a digital shaft encoder that measures water level by monitoring the angular position of a shaft. It is suitable for measuring water levels utilizing a float and pully system, and works with any SDI-12 data recorder. It is battery powered with minimal current drain and low system cost. With magnetic sensing the static sensitivity is minimised and it has multiple sensors on a simple three-wire cable. It also has a sealed precision dual bearing design with special low temperature lubricant, a threaded shaft compatible with older mechanical shaft encoder wheels, no backlash and a built in transient over voltage protection circuitry.

Author: indicatorgauge Categories: Water Monitoring Instruments Tags: , , ,

Semrad Environmental Sensors

November 23rd, 2009
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Semrad Pty Ltd

Semrad Pty LtdSemrad Pty Ltd is a leading Australian distributor of level switches and sensors, transmitters, indicators, gauges and water management precision instruments. Their products are specifically designed for harsh industrial applications, including caustic, acid and chemical solutions. The company is dedicated to providing the most cost effective and technically advanced solutions for the measurement and control of liquid and bulksolids levels.

Their sensing technologies include untrasonic, RF capacitance, magnetic float, hydrostatic, nuclear, conductivity, radar, vibration and buoyancy. Semrad offers a range of water management sensors from submersible pressure transducers to inclinometers, shaft encoders and rain gauges.

Environmental Sensors

Linear Cable Extension TransducerThe WaterLOG® H-335 is a precision inclinometer that works with any SDI-12 data recorder and can be interfaced with SCADA systems (Supervisory Control and Data Acquisition). It is a single axis, wide range inclinometer which measures the angle of radial water control gates. It easily attaches to the I-beam of the gate structure, has built in intelligence that automatically calculates both gate height and arc length, and has a 0.03° accuracy over the full position and temperature range. It scales the gate position into user units of feet, inches, meters and so on, has no hysteresis or backlash, no moving parts or bearings, and a low system cost. Easy to install, it eliminates the need for shaft encoders, gears, chains and other non-linear measurement schemes.

The WaterLOG® H-336 is a SDI-12 digital linear cable extension position transducer that measures distances by monitoring the amount of cable extended from the unit. It can measure the position of slide gates, canal gates and other linear mechanisms. The cable is made from flexible stainless steel and has a precision spring-loaded spool. The sealed enclosure protects the electronics from moisture and dirt and the water resistant connector provides easy hookup. The output is easily scaled into user units of feet, inches, meters, etc. The SDI-12 protocol supports multiple sensors on a simple three-wire cable.

Author: indicatorgauge Categories: Water Monitoring Instruments Tags: , , ,
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