Transducers by Campbell Scientific, Inc.

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	Analyzers Gas Anemometers Data Acquisition Systems Data Collection Systems Data Loggers Encoders Shaft Hygrometers Probes Current Humidity pH Temperature Thermocouple Pyranometers Radiometers Resistance Temperature Detectors (RTDs) Sensors Air Velocity Conductivity Current Dissolved Oxygen Distance Electric Field Flow Gas GPS Heat Flux Humidity Moisture pH Position Precipitation Pressure Quantum Turbidity Water Wind Temperature Sensors Air RTD Soil Surface Thermistor Thermocouple Water Thermocouples Type E Transducers Pressure

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Campbell Scientific, Inc.

Logan, UT

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		CS408-L PressureSystems 500-series SDI-12 Pressure Transducers The CS408 is a submersible pressure transducer manufactured by Pressure Systems to measure surface water, ground water, or hostile fluid levels. Each transducer is individually calibrated, and ships with a calibration sheet. The sheet specifies I/O conditions, as well as actual data reflecting the unit’s static accuracy and thermal characteristics. A vent tube, which runs the entire length of the cable, vents to the atmosphere so the measurements do not have to be corrected for barometric pressure. A desiccant tube is included to extract water vapor from air entering the vent tube. Features • Constructed of 316 stainless steel • Pressure ranges are 5, 15, 30, 50, and 100 psi • Accuracy is ±0.05% FSO • Outputs pressure via SDI-12 digital interface standard • Manufactured by Pressure Systems Request Quote View Literature

		CS420-L Druck PDCR 1830-8388 Submersible Pressure Transducer The CS420 submersible pressure transducer is manufactured by Druck for use in surface, ground water, or hostile fluid applications. Changes in water level correspond to pressure changes on a strain gage bonded to a pressure-sensitive diaphragm. When a precision excitation voltage is applied, the electrical resistance varies with changing liquid pressure. Our dataloggers supply the excitation voltage and measure resistance, then convert the measured value to the desired units (i.e., pressure, depth, or level). The CS420 features a titanium body, 0.69" outer diameter, isolated diaphragm, and a vented cable. The vented cable eliminates the need to compensate for changes in barometric pressure. Features • Submersible pressure transducer measures water level in surface water, ground water, or hostile fluid applications • Pressure ranges are 2.5, 5, 10, 15, 20, 30, 50, 75, 100 psig • Accuracy is ±0.1% FSO • Constructed of titanium • Manufactured by Druck Request Quote View Literature

		CS431-L INW PS9805 Pressure Transducer The CS431, manufactured by Instrumentation Northwest for use with Campbell Scientific dataloggers, measures both water level and water temperature. It uses piezoresistive strain gage technology to measure water level and an on-board thermistor to measure water temperature. The CS431 has a 316 stainless steel body and Viton® and Teflon® wire seals that resist corrosion. Its double-sealed, cable harness protects the cable jacket and reduces the possibility of leakage. The end cone is interchangeable with an NPT inlet allowing easy hookup and field calibration. You can choose a polyurethane or Teflon cable. Both cable options are vented. An optional enhanced measurement calibration is available that allows more accurate compensation for temperature variations. Features • Available pressure ranges are 5, 15, 30, 50, or 100 psig • Measures water level in streams • Repeatability is ±0.1% FSO, typical • Linearity is ±0.1% FSO, typical • Measures water temperature, standard error ±2.0% FSO (0-40°) • Enhanced temperature calibration available, standard error ±0.2% FSO (0-40°) • Manufactured by Instrumentation Northwest Request Quote View Literature

		CS440-L ACData Sol'ns SPXD-500 4-20 mA Pressure Transducer The CS440 submersible pressure transducer is manufactured by ACData Solutions, Inc., to provide liquid level measurements in wells, lakes, streams, and tanks. The pressure transducer uses an isolated silicon strain gauge sensor housed in a 316 Stainless Steel package. The rugged, polyurethane cable jacket remains flexible under harsh conditions. The cable incorporates a vent tube to compensate for atmospheric pressure fluctuations. The vent tube terminates inside a desiccated chamber to prevent moisture from entering the system. The CS440 requires a current shunt resistor, such as our CURS100, to convert the CS440's 4-20 mA signal to a voltage signal that is measurable by our dataloggers. Features • Measures water level in suface water, ground water, or hostile fluids • Available pressure ranges are 0-5, 15, 30, 50 psig • Accuracy is 0.1% Span • Constructed of 316 stainless steel • Manufactured by ACData Solutions Request Quote View Literature