Campbell Scientific CSAT3B CSAT3B Three-Dimensional Sonic Anemometer - Page 29
Communications, Power Requirements
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CSAT3B Three-Dimensional Sonic Anemometer Internal Monitor Measurements Update Rate: Inclinometer Accuracy: Relative Humidity Accuracy: Board Temperature Accuracy: 2 Hz ± 1 ° ± 3% over 10 − 90% range ± 7% over 0 − 10% range ± 7% over 90 − 100% range ± 2 °C 6.2 Communications SDM: Used for datalogger-based data acquisition. Bit Period: Cable Length: Address Range: Bus Clocks per Sample: 10 µs to 1 ms 7.6 m (25 ft) max @ 10 µs bit period 76 m (250 ft) max @ 1 ms bit period 1 - 14 ~200 CPI: Used for datalogger-based data acquisition. Baud Rate: Cable Lengthi: Address Range: Bus Clocks per Sample: 50 kbps to 1 Mbps 15 m (50 ft) max @ 1 Mbps 122 m (400 ft) max @ 250 kbps 853 m (2800 ft) max @ 50 kbps 1 - 120 ~300 RS-485: Used for anemometer configuration or PC-based data acquisition. Baud Rate: Cable Length: Bus Clocks per Sample: 9.6 kbps to 115.2 kbps 305 m (1000 ft) max @ 115.2 kbps 610 m (2000 ft) max @ 9.6 kbps ~500 (ASCII formatted) USB: Used for anemometer configuration or PC-based data acquisition. Connection Speed: Cable Length: USB 2.0 full speed 12 Mbps 5 m max 6.3 Power Requirements Voltage Requirement: 9.5 - 32 Vdc Current Requirement (10 Hz Measurement Rate) Current @ 12 Vdc: 110 mA Current @ 24 Vdc: 65 mA Current Requirement (100 Hz Measurement Rate) Current @ 12 Vdc: 145 mA Current @ 24 Vdc: 80 mA i For additional details, refer to CSI whitepaper "Designing Physical Network Layouts for the CPI Bus" 19
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