ET107Evapotranspiration Monitoring Station

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1. Is the 6182 the replacement battery for the ET107?

   Yes.

2. How can the ET107 RH chip be replaced?

   Refer to the “Maintenance, Troubleshooting, and Schematics” section of theET107 Weather Station Instruction Manualfor procedural instructions.

3. Is the ET107 compatible with Calsense controllers?

   Calsense Command Center software can interface with Campbell Scientific’sVisualWeathersoftware, which can retrieve values from the ET107. In the Command Center software, setting up a station involves connecting to theVisualWeather LoggerNetserver and selecting variables from the weather station’s listing for wind speed, rainfall, and ETo.

4. Can 24 Vac work with an ET107, or does it have to be 16 Vac?

   The PS100 power supply that’s in the ET107 specifies a charging voltage of 15 to 28 Vdc or 18 Vac RMS. A 24 Vac transformer will blow the protective circuitry in the PS100.

5. Can communication be initiated with the ET107 using Modbus?

   Yes. However, special data logger programming is required. Contact an application engineer at Campbell Scientific for assistance.

6. What field mapping is needed to use VisualWeather with a station?

   IfVisualWeatheris used with the ET107, T107 (Toro), ET106, or MetData1, and the station has a standard configuration, setting up the station inVisualWeatheris relatively simple. Select the station from the list in theWeather Station Networkscreen, and most of the work is automatically performed.

   If, however, a custom station, a different station model, or a different variation for one of the sensors is used, it is necessary to set up a custom station in theWeather Station Networksetup screens. In theStation Selectionscreen, selectCustom.

   Follow the screens that ask about the details of the station. Then,VisualWeather will connect to the station and get the names and fields of the data tables on the station where the data is stored. Because the names and fields of these tables are meaningless toVisualWeather, a mapping process must be used to map data table fields to fields and units thatVisualWeatherrecognizes. This mapping allowsVisualWeatherto create screens and reports that are meaningful.

   Because the data tables are often identified with a number and the fields are often cryptic, the mapping process can sometimes be confusing. To map fields for a custom station, contact Campbell Scientific for assistance.

7. Can the individual measurement parameter data be retrieved separately from the ET107, in addition to the automatically calculated ETo?

   Wind speed, wind direction, solar radiation, temperature, relative humidity, and rain measurements are data parameters that are available. Typically, ETo is calculated by the software; however, it is possible for the ET107 to perform the calculation as well.

8. What is the difference between the ET106 and the ET107?

   The most significant difference is that the retired ET106 used the CR10X datalogger, whereas the ET107 uses the CR1000 datalogger. Other differences are the following:

   • As a design improvement, the ET107 has a seal incorporated into its lid assembly.
   • The ET107 uses a CS300 pyranometer instead of the LI200X pyranometer.
   • The ET107 provides a choice of wind sensor (either the 034B or the WindSonic1), whereas the ET106 could only be used with the 034B.
9. Is the VisualWeather software included with the purchase of an ET107?

   No.VisualWeathermust be purchased separately.

10. Can a leaf wetness sensor be added to an ET107?

    No.