Current Probes 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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		SDM-CVO4 The SDM-CVO4 is a synchronously addressed datalogger peripheral that outputs variable voltage or current signals under datalogger program control. Each output can be set to 0-10 Vdc or 0-20 mA by the datalogger program (current outputs can also be scaled and limited to 4-20 mA). Typical applications include driving remote ‘current-loop’ display units, re-transmitting measured values to industrial control systems that have current or high voltage inputs, sending control signals to valve controllers and providing excitation voltages or currents to external sensors. Request Quote

		CURS100 The CURS100 converts a current signal output by a sensor or output device (e.g., 4 to 20 mA) to a voltage that can be measured by a datalogger. The 100 ohm resistor used for the current shunt allows currents up to 25 mA to be read on a ±2500 mV range (CR10, CR10X, CR510, CR500) and currents up to 50 mA to be read on a ±5000 mV range (CR23X, 21X, CR7, CR5000, CR9000, CR9000X). Request Quote

		CE8 The CE8 is an 8-channel current excitation module designed to provide a 50 mA constant current to the heating element of a 229-L Heat Dissipation Water Matric Potential sensor. Request Quote

		CE4 The CE4 is a 4-channel current excitation module designed to provide a constant current to the heating element of a 229-L Heat Dissipation Water Matric Potential sensor. Request Quote

		CS10 The CS10 uses CR Magnetic's CR8459 Current Transformer to measure the approximate current over a range of 0 to 200 Amps. The CS10 outputs a millivolt signal allowing the transducer to be directly connected to the CR510, CR10X, or CR23X dataloggers. The CS10-L is intended for lower-accuracy applications such as motor or generator load conditions, efficiency studies, intermittent fault detection, and rough submetering. Request Quote View Literature

		A3497 The A3497 allows up to five thermocouple psychrometers to be cooled from one switched excitation on a CR7 Measurement and Control System. It is also possible to heat (dry) the junction before the cooling current is applied. Request Quote

		229-L The 229-L Water Matric Potential Sensor measures soil water potential from 0.1 to 10 bars. The sensor consists of a heating element and thermocouple emplaced in epoxy in a hypodermic needle, which is encased in a porous ceramic matrix. To calculate soil water matric potential, a Current Excitation Module applies a 50 mA current to the 229's heating element, and the 229 thermocouple measures the temperature rise. The magnitude of the temperature rise varies according to the amount of water in the porous ceramic matrix, which changes as the surrounding soil wets and dries. Request Quote

		SDM-CD16D The SDM-CD16D increases the number of digital outputs that can be controlled (i.e., set to 0 or 5 Vdc) by a Campbell datalogger. The SDM-CD16D is commonly used to drive normal logic level inputs. It can also source some current; when an output is set HI, a ‘boost’ circuit allows the SDM-CD16D to source a current of up to 100 mA, which allows it to directly control low voltage valves, relays, etc. Request Quote