Campbell RAWS-H Remote Instruction Manual

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Campbell RAWS-H Remote Instruction Manual Manual pdf 15 page image

RAWS-H Remote Automated Weather Stationbatteries connected. The battery connections are diode isolated; however, ifone of the batteries fails, it could draw all the charging current and the otherbattery will be discharged.Reversal of battery polarity will damage the CH100 orbattery.It is possible to leave two batteries connected. The batteryconnections are diode isolated; however, if one of thebatteries fails, it could draw all the charging current and theother battery will be discharged.5.3.3 Troubleshooting, BatteryMeasure the +12 V and Ground terminal on the CR1000 printed circuit boardwiring panel. Acceptable readings are +11 VDC to +14 VDC. Use PC200Wsoftware to collect the 1-HR data table from the CR1000 datalogger and reviewthe historical record of battery voltage.5.4 GOES Transmitter5.4.1 General Description, GOES Transmitter (part #TX320)The High Data Rate GOES transmitter (part #TX320) shown in Figure 5.4-1supports one-way communication, via satellite, from a Campbell Scientificdatalogger to a ground receiving station. Satellite telemetry offers a convenientcommunication alternative for field stations where phone systems or RFsystems are impractical or rendered unreliable after a tragedy to the localinfrastructure. Data transmission rates of 100, 300, and 1200 bps aresupported. Because clock accuracy is critically important for GOES satellitetelemetry, the TX320 includes a robust, TCXO-based real-time clock and aGPS receiver.The TX320 transmitter has two siting requirements for proper operation. TheGOES antenna must have a clear view of the spacecraft. The GOES antenna isdirectional and should be aimed at the spacecraft. Both elevation and azimuthare unique to the location of the planet and must be set. A poorly aimedantenna will cause a drop in signal strength or possibly prevent successfultransmission.For more information on the GOES transmitter (part #TX320) and antennasiting, go to our website at www.campbellsci.com, enter the “TX320” in the“Search” box on the website mentioned above, and go the equipment manual.The GOES transmitter (part #TX320) manual is also provided on theResourceDVD which ships with the RAWS Quick Deployment WeatherStation.The spacecraft specific DCP-Setup parameters for the GOEStransmitter must be entered in the CR1000 program.NOTECAUTIONWARNING9