If you have renamed the SmartFlux 2 or 3 System, does it have a valid name? The SmartFlux System name can only include upper and lower case letters (A to Z a to z), numbers (0 to 9), the dash character (-), and the period (.).System not connected to the sonic anemometer Reboot the SmartFlux 2 or 3 System by pressing the reset button.Check the power supply connections and correct any faulty connections.Check the Ethernet cable and connections to the SmartFlux 2 or 3 system and in the rest of your EC system.If it is blinking rapidly, this indicates the system is communicating over the network. Check the Ethernet Activity LED light on the SmartFlux 2 or 3 System.System not visible on the network (cannot connect) The same voltage provided to the SmartFlux System will be provided to a sonic anemometer powered through the Power Out terminals. ![]() In this case, supplying an incoming 24 VDC to the SmartFlux System could damage the sonic anemometer. Some sonic anemometers have an upper voltage limit of 15 VDC. Check the VIN value in the GHG windows interface software (under Diagnostics).If the Power IN LED is lit, but Power OUT LED is not lit, then a 3A fuse inside the SmartFlux 2 module may have failed.The positive wire should go to the Power IN (+) terminal and the negative wire should go to the Power IN (–) terminal on the SmartFlux 2 module. Check connections on the SmartFlux System power wiring harness and tighten any loose fittings.Check connections in the power supply and correct any faulty connections.Problems with the SmartFlux 3 System System powers on/off unpredictably or not powering the anemometer If the fuse blows repeatedly, carefully check the wiring. Note that a blown fuse usually indicates some other problem. Blown fuse? Check the fuse, as described in Changing the SmartFlux 3 System fuses.Also check the cable for damage and check the connections to the power supply. Loose connection? Make sure the power cable connector is tight.Hot and cold temperatures cause the instrument to draw more power. ![]() Steady-state power draw is between 4 and 8 watts, depending upon the ambient temperature. Power draw may briefly be up to 15 watts during start up. The instrument requires between 8 and 34 VDC.
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