ET107 Evapotranspiration Monitoring Station

Overview

Our ET107 ETo station consists of meteorological sensors, an aluminium 3 m pole, and an environmental enclosure that houses a CR1000M module and a 7 Ahr sealed rechargeable battery. The battery is recharged via an ac transformer or a 10 W solar panel. Sealed circular connectors are provided on the outside of the enclosure to simplify sensor hookup.

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Benefits and Features

  • Monitors temperature, relative humidity, wind speed and direction, solar radiation, and precipitation
  • Automatically calculates potential evapotranspiration (ETo)
  • Accurate measurements you can rely on
  • Pre-configured with some pre-assembly for easy installation
  • Rugged, low-power design for long-term, reliable operation
  • Looks great and fits well in public settings
  • Multiple sensor and communication options

Images

ET107 with PS150 power supply (sold separately)

Technical Description

Our ET107 ETo station consists of meteorological sensors, an aluminium 3-m pole, and an environmental enclosure that houses a CR1000M module and a 7-Ahr sealed rechargeable battery. The battery is recharged via ac power or a 10-W solar panel. Sealed circular connectors are provided on the outside of the enclosure to simplify sensor hookup.

Meteorological sensors included with the ET107 are the CS305-ET Solar Radiation Sensor, HMP60-ETS Air Temperature and Relative Humidity Probe, TE525-ET Tipping Bucket Rain Gauge, and either the 034B-ETM Wind Set or WindSonic1-ETM 2-D Sonic Wind Sensor.

The ET107 can also measure the:

Specifications

Compatibility


FAQs for

Number of FAQs related to ET107: 18

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  1. Refer to the “Maintenance, Troubleshooting, and Schematics” section of the ET107 Weather Station Instruction Manual for procedural instructions.

  2. 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.

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

  4. 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.

  5. The communications options include direct serial connection, short haul modem, analog phone modem, cellular phone modem, radio, and Wi-Fi.  Also, with an enclosure alteration, an Ethernet port can be added.

    Note: Some of the listed telemetry options can drastically alter the power budget of the station.

  6. 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.
  7. Campbell Scientific recommends the following maintenance schedule:

    • Once a week: check the rain gage funnel, and clean as necessary.
    • Once a month: check the solar radiation sensor, and clean as necessary.
    • Every 3 months: clean the temperature/RH radiation shield.
    • Every 6 months to 1 year: replace the two desiccant packs (pn 4905).
    • Every 1 to 3 years: have Campbell Scientific replace the wind speed bearings and reed switch. Request a returned material authorization (RMA) number by following the steps listed on our Repair and Calibration page.
    • Every 1 to 3 years: replace the relative humidity chip (pn 9598).
    • Once every 3 years: have Campbell Scientific calibrate the solar radiation sensor. Request a returned material authorization (RMA) number by following the steps listed on our Repair and Calibration page.
    • Once every 5 years: have Campbell Scientific calibrate the rain gage sensor. Request a returned material authorization (RMA) number by following the steps listed on our Repair and Calibration page.
    • Once every 5 years: have Campbell Scientific calibrate the data logger. Request a returned material authorization (RMA) number by following the steps listed on our Repair and Calibration page.
  8. Yes. However, special data logger programming is required. Contact an application engineer at Campbell Scientific for assistance.

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