FW05 CAMPBELL | Alldatasheet
Document overview
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Technical content
FW05, FW1, and FW3 Type E, Fine Wire Thermocouples Campbell Scientifi c’s FW05, FW1, and FW3 thermo- couples measure atmospheric temperature gradients or fl uctuations with research-grade accuracy. Th e models diff er in their diameters: FW05 has a 0.0005-in diameter• FW1 has a 0.001-in diameter• FW3 has a 0.003-in diameter• Th e FW05, having the smallest diameter, experi- ences the least amount of solar loading but is the most fragile. For all of these thermocouples, solar loading is small enough that a radiation shield is not required. Type E Thermocouples Type E thermocouples are comprised of a chromel wire and a constantan wire joined at a measure- ment junction. A voltage potential is generated when the measurement end of the thermocouple is at a different temperature than the “reference end” of the thermocouple. The magnitude of the volt- age potential is related to the temperature differ- ence. Therefore, temperature can be determined by measuring the differences in potential created at the junction of the two wires. A reference temperature measurement (typically measured at the datalogger wiring panel) is re- quired. Options for measuring the reference tem- perature include: Th ermistor built into the CR800, CR850, CR1000, • CR3000, or CR5000 wiring panel PRT built into the wiring panel of the CR9050 or • CR9051E input module for the CR9000X Measurement and Control System• PRT built into the wiring panel of the CR723T input • card for the CR7 Measurement and Control System CR10XTCR thermistor that connects to the • CR10X wiring panel Please note that our CR200-series and CR510 dataloggers are not compatible with thermocouples. Th e thermo- couples connect to the datalogger via the FWC-L cable.
Ordering Information
FW05 Type E Fine Wire Thermocouple with a 0.0005-inch diameter; requires the FWC-L (see below). FW1 Type E Fine Wire Thermocouple with a 0.001-inch diameter; requires the FWC-L (see below). FW3 Type E Fine Wire Thermocouple with a 0.003-inch diameter; requires the FWC-L (see below). Accessories FWC-L Connector cable for Fine Wire thermocouples. Enter the cable length, in feet, after the L. A 20 ft length (FWC- L20) is recommended. FW/ENC Carrying Case for shipping fi ne-wire thermocouples. The FW/ENC Carrying Case is required to ship our FW05, FW1, and FW3 thermocouples. It holds up to four thermocouples. Thermocouples returned to Campbell Scientifi c for repair without this case will be shipped to the customer in a new case and the account charged accordingly. The FW05, FW1, and FW3 thermocouples terminate in a connector that attaches to the FWC-L cable. The FWC-L cable then attaches to the datalogger.
Campbell Scientific, Inc. | 815 W 1800 N | Logan, Utah 84321-1784 | (435) 753-2342 | www.campbellsci.com USA | AUSTRALIA | BRAZIL | CANADA | COSTA RICA | ENGLAND | FRANCE | GERMANY | SOUTH AFRICA | SPAIN Weight: 2 oz (45 g) Diameter FW05: 0.0005 inch (0.0127 mm) FW1: 0.001 inch (0.0254 mm) FW3: 0.003 inch (0.0762 mm) Total Length: 14.5 inch (36.8 cm) Plug Dimensions: 0.7 inch x 1.3 inch x 0.4 inch (1.8 cm x 3.3 cm x 1.0 cm) Type: Chromel-Constantan Typical Output: 60 μV/°C Accuracy: Refer to the “Th ermocouple Measurement” section in your datalogger manual. FW/ENC Weight: 0.8 lbs (0.36 kg) Capacity: up to 4 thermocouples Specifi cations Copyright © 2005, 2009 Campbell Scientifi c, Inc. Printed November 2009