Thermocouples 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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		ASPTC-L Aspirated Thermocouple The ASPTC is a white, elongated radiation shield that reduces solar loading on a thermocouple by drawing air across the measurement junction with a fan. The radiation shield also protects the sensor, increasing its durability. Typically, one ASPTC is mounted to each sensor arm in a Bowen ratio system. One ASPTC can either replace, or be measured in addition to, TCBR thermocouples. In a standard configuration, lead lengths of 15 feet are recommended for both signal and power cables. Features Uses fine wire thermocouple for highly accurate air temperature measurements Includes aspirated radiation shield Solar loading on thermocouple reduced by drawing air across the measurement junction with a high-powered fan Intake velocity is 5.5 m/sec Fan requires 12 Vdc power supply Fan average active current drain is 142 mA Request Quote View Literature

		FW1 Fine Wire Thermocouple The FW1 Fine Wire Thermocouple is typically used to measure atmospheric temperature gradients or fluctuations. The small mass of the thermocouple is less susceptible to solar loading; therefore, a radiation shield is not required. One differential analog input per sensor is required. Features FW1 has a 0.001 inch diameter Extremely small diameters virtually eliminate solar loading Type E thermocouples—typical output is 60 uV/°C Typically used to measure atmospheric temperature flux with research-grade accuracy Shipping/transport requires TCBR/ENC (capacity=4) Request Quote View Literature

		FW05 Type E Fine Wire TC, 0.0005" Diameter The FW05 Fine Wire Thermocouple is typically used to measure atmospheric temperature gradients or fluctuations. The small mass of the thermocouples is less susceptible to solar loading; therefore, a radiation shield is not required. One differential analog input per sensor is required. Features FW05 has a 0.0005 inch diameter Extremely small diameters virtually eliminate solar loading Type E thermocouples—typical output is 60 uV/°C Typically used to measure atmospheric temperature flux with research-grade accuracy Shipping/transport requires TCBR/ENC (capacity=4) Request Quote View Literature

		FW3 Type E Fine Wire TC, 0.003" Diameter The FW3 Fine Wire Thermocouple is typically used to measure atmospheric temperature gradients or fluctuations. The small mass of the thermocouple is less susceptible to solar loading; therefore, a radiation shield is not required. One differential analog input per sensor is required. Features FW3 has a 0.003 inch diameter Extremely small diameters virtually eliminate solar loading Type E thermocouples—typical output is 60 uV/°C Typically used to measure atmospheric temperature flux with research-grade accuracy Shipping/transport requires TCBR/ENC (capacity=4) Request Quote View Literature

		TCAV-L Averaging Soil Thermocouple Probe The TCAV is used to determine soil temperature. It consists of four thermocouple junctions. The probe averages 2 point temperature measurements of the top 6-8 cm of soil at each of two locations separated by up to 1 m (i.e., 2 junctions @ two depths). Features Type E thermocouple (chromel-constantan) probe Averages two soil temperature measurements within small vertical/horizontal area 2 x 2 thermocouple configuration (4 junctions total) Typically used in conjunction with soil heat flux plates 50 foot lead is recommended Request Quote

		105T-L Type T Thermocouple Probe The 105T is a general purpose, 24 gage, shielded, type T thermocouple suitable for use in soil temperature measurement or similar applications. The thermocouple junction is electrically isolated from the media being measured, thereby avoiding measurement errors due to differences in ground potential. Features Thermocouple probe suitable for burial Request Quote