Campbell Scientific CSAT3B CSAT3B Three-Dimensional Sonic Anemometer - Page 23

CSAT3B Three-Dimensional Sonic Anemometer, Options for cabling CPI or RS-485

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CSAT3B Three-Dimensional Sonic Anemometer FIGURE 5-5. Options for cabling CPI or RS-485 communications 5.2.3.2 FW05 Thermocouple The FW05 is a Type E thermocouple with a 0.0127 mm (0.0005 in) diameter (FIGURE 5-6). The thermocouple measures atmospheric temperature fluctuations and may be used with the CSAT3B to directly calculate sensible heat flux. Larger size fine-wire thermocouples, such as the FW1 and FW3, which are more robust but have slower response times, may also be used with the CSAT3B. FIGURE 5-6. FW05 thermocouple 5.2.3.3 FWC-L Cable The FWC-L is a cable with connector that mates with the connector on a FW05, FW1, or FW3 fine-wire thermocouple. The other end of the cable has pigtail wires to wire to a pair of differential voltage channels on a datalogger. The -L denotes the length of cable in feet, which can be designated at the time of ordering. 5.2.3.4 Thermocouple Cover The TC cover (pn 10080) is a white metal, thermocouple cover that is placed over the connectors of the FW05 and the FWC-L cable. It is used to mount the connectors to the side of the CSAT3B block. It also minimizes temperature gradients across the connectors. 13

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CSAT3B Three-Dimensional Sonic Anemometer
FIGURE 5-5.
Options for cabling CPI or RS-485 communications
5.2.3.2 FW05 Thermocouple
The FW05 is a Type E thermocouple with a 0.0127 mm (0.0005 in) diameter
(FIGURE 5-6).
The thermocouple measures atmospheric temperature
fluctuations and may be used with the CSAT3B to directly calculate sensible
heat flux.
Larger size fine-wire thermocouples, such as the FW1 and FW3,
which are more robust but have slower response times, may also be used with
the CSAT3B.
FIGURE 5-6.
FW05 thermocouple
5.2.3.3 FWC-L Cable
The FWC-L is a cable with connector that mates with the connector on a
FW05, FW1, or FW3 fine-wire thermocouple.
The other end of the cable has
pigtail wires to wire to a pair of differential voltage channels on a datalogger.
The –L denotes the length of cable in feet, which can be designated at the time
of ordering.
5.2.3.4 Thermocouple Cover
The TC cover (pn 10080) is a white metal, thermocouple cover that is placed
over the connectors of the FW05 and the FWC-L cable.
It is used to mount the
connectors to the side of the CSAT3B block.
It also minimizes temperature
gradients across the connectors.
13