ASPTC-L CAMPBELL | Alldatasheet
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5] SCIENTIFIC WHEN MEASUREMENTS MATTER Overview The ASPTC-L consists of a type-E fine-wire thermocouple mounted in a fan-aspirated radiation shield to provide highly accurate air temperature measurements. One ASPTC can measure absolute air temperature, or two ASPTCs can make Benefits and Features ) Uses fine-wire thermocouple for accurate air temperature measurements Technical Description The ASPTC's radiation shield is an elongated tube constructed from white UV-stabilized polyethylene that provides low thermal conductivity and heat retention. A fan draws air across the measurement junction, which reduces solar loading on the thermocouple. The radiation shield also protects the thermocouple, increasing the thermocouple’s durability. The ASPTC's fine-wire thermocouple consists of a chromel wire and a constantan wire joined at a measurement junction. A voltage potential is generated when the Specifications Shield Material UV-stabilized polyethylene Large Diameter 58cm(23in) Small Diameter 46cm (1.8in) Power Cable Diameter 05cm (021in) NEE(ERES ASPTC-L Aspirated Thermocouple with Mounts Highly Accurate Air Temperature Fine-wire thermocouple in aspirated radiation shield delta temperature measurements. Often, the ASPTC replaces, or is measured in addition to, the TCBR thermocouples in a Bowen ratio system. ) Includes aspirated radiation shield ) High-powered fan reduces solar loading measurement end of the thermocouple is at a different temperature than the reference end of the thermocouple. The magnitude of the voltage potential is related to the temperature difference. Therefore, temperature can be determined by measuring the differences in potential created at the junction of the two wires. Areference temperature measurement is required for thermocouple measurements. The temperature sensor built into many of our dataloggers' wiring panel typically provides this measurement. Signal Cable Diameter 03cm (0.11n) Length 533cm(21in) Height 147 cm (581in) Weight 0.86 kg (1.9 Ib) For comprehensive details, visit: www.campbellsci.eu/asptc ‘
55m/s (@12 Vdd) 65,000 h (@ 30°C) 260 mA (@ 12 Vdc) 9to13Vdc -10°to +70°C Polarity Protection Reverse polarity protected Thermocouple Type Chromel-Constantan Typical Output 60 uv/°C Accuracy Refer to the Thermocouple Measurement section in the data logger manual. Diameter 0.0762 mm (0.003in.) For comprehensive details, visit: www.campbellsci.eu/asptc CAMPBELL 80 Hathern Road, Shepshed, LE129GX UK | +(0)1509828888 | sale@campbellsci.couk | www.campbellscieu AUSTRALIA | BRAZIL | CANADA | CHINA | COSTA RICA | FRANCE | GERMANY | INDIA | SOUTH AFRICA | SPAIN | THAILAND | UK | USA ©2020 Campbell Scientific, Ltd. | 03/24/2020