SGP/EBBR/E19 - Battery Voltage Too Low, Most Measurements Incorrect

Battery voltage dropped below levels required to sustain the 
               production of valid data.  The AC charger unit had failed.  
               This prevented charging of the battery during the night and
               prevented the solar panel regulator from properly charging 
               the battery during the day.

There is no work around for this problem.

• Soil moisture 5, gravimetric(soil_moisture_5)
• Net radiation(net_radiation)
• Soil heat flow 1, corrected for soil moisture(corr_soil_heat_flow_1)
• Soil heat flow 2, corrected for soil moisture(corr_soil_heat_flow_2)
• Soil heat flow 3, corrected for soil moisture(corr_soil_heat_flow_3)
• Soil heat flow 4, corrected for soil moisture(corr_soil_heat_flow_4)
• Top T/RH sensor temperature(temp_trh_top)
• Bottom air temperature(temp_air_bottom)
• Soil moisture 4, gravimetric(soil_moisture_4)
• Soil moisture 3, gravimetric(soil_moisture_3)
• Soil moisture 2, gravimetric(soil_moisture_2)
• Soil moisture 1, gravimetric(soil_moisture_1)
• Soil temperature mean 3(soil_temp_3)
• Soil heat capacity 1(soil_heat_capacity_1)
• Half hour averaged soil temperature 4(soil_temp_4)
• Soil heat capacity 2(soil_heat_capacity_2)
• Soil temperature 1(soil_temp_1)
• Soil temperature 2(soil_temp_2)
• Soil heat capacity 3(soil_heat_capacity_3)
• Soil heat capacity 4(soil_heat_capacity_4)
• Soil heat capacity 5(soil_heat_capacity_5)
• Half hour averaged soil temperature 5(soil_temp_5)
• Bottom relative humidity (fractional)(rh_bottom_fraction)
• Soil heat flow 5, corrected for soil moisture(corr_soil_heat_flow_5)
• AEM position indicator 15 to 30 mins(home_signal_30)
• Wind direction vector mean standard deviation(wdir_vec_std)
• Atmospheric pressure(atmos_pressure)
• Surface latent heat flux(latent_heat_flux)
• Surface soil heat flux 4(surface_soil_heat_flux_4)
• Surface soil heat flux 3(surface_soil_heat_flux_3)
• Surface soil heat flux 5(surface_soil_heat_flux_5)
• Surface soil heat flux 2(surface_soil_heat_flux_2)
• Surface soil heat flux 1(surface_soil_heat_flux_1)
• Surface sensible heat flux(sensible_heat_flux)
• Top vapor pressure(vapor_pressure_top)
• Bottom T/RH sensor temperature(temp_trh_bottom)
• Top air temperature(temp_air_top)
• Surface soil heat flux, average of fluxes 1-5(surface_soil_heat_flux_avg)
• Wind speed arithmetic mean(wspd_arith_mean)
• Reference temperature in enclosure(temp_reference)
• Change in energy storage 3, 0-5 cm soil layer(energy_storage_change_3)
• Change in energy storage 2, 0-5 cm soil layer(energy_storage_change_2)
• Change in energy storage 5, 0-5 cm soil layer(energy_storage_change_5)
• Change in energy storage 4, 0-5 cm soil layer(energy_storage_change_4)
• Change in energy storage 1, 0-5 cm soil layer(energy_storage_change_1)
• Wind speed vector mean(wspd_vec_mean)
• AEM position indicator 0 to 15 mins(home_signal_15)
• Soil heat flow 1(soil_heat_flow_1)
• Bottom vapor pressure(vapor_pressure_bottom)
• Soil heat flow 3(soil_heat_flow_3)
• Soil heat flow 2(soil_heat_flow_2)
• Soil heat flow 5(soil_heat_flow_5)
• Soil heat flow 4(soil_heat_flow_4)
• Bowen ratio(bowen_ratio)
• Top relative humidity (fractional)(rh_top_fraction)
• Wind direction vector mean(wdir_vec_mean)

• Right air temperature(temp_air_right)
• Reference temperature in enclosure (resistance ratio)(temp_reference_rr)
• Soil heat flow 1 (mV)(soil_heat_flow_1_mv)
• Soil moisture 4 (resistance ratio)(soil_moisture_4_rr)
• Left relative humidity (mV)(rh_left_mv)
• Soil temperature 2 (resistance ratio)(soil_temp_2_rr)
• Soil moisture 1 (resistance ratio)(soil_moisture_1_rr)
• Soil heat flow 4 (mV)(soil_heat_flow_4_mv)
• Right T/RH sensor temperature (resistance ratio)(temp_trh_right_rr)
• Soil temperature 1 (resistance ratio)(soil_temp_1_rr)
• Left T/RH sensor temperature (resistance ratio)(temp_trh_left_rr)
• Soil temperature 4 (resistance ratio)(soil_temp_4_rr)
• AEM position indicator(home_signal)
• Soil heat flow 2 (mV)(soil_heat_flow_2_mv)
• Wind speed arithmetic mean(wspd_arith_mean)
• Soil moisture 3 (resistance ratio)(soil_moisture_3_rr)
• Soil heat flow 5 (mV)(soil_heat_flow_5_mv)
• Soil temperature 3 (resistance ratio)(soil_temp_3_rr)
• Atmospheric pressure (mV)(atmos_pressure_mv)
• Left air temperature(temp_air_left)
• Wind direction vector mean (mV)(wdir_vec_mean_mv)
• Right relative humidity (mV)(rh_right_mv)
• Soil moisture 5 (resistance ratio)(soil_moisture_5_rr)
• Net radiation (mV)(net_radiation_mv)
• Soil temperature 5 (resistance ratio)(soil_temp_5_rr)
• Soil heat flow 3 (mV)(soil_heat_flow_3_mv)
• Soil moisture 2 (resistance ratio)(soil_moisture_2_rr)

• Wind speed vector mean(wspd_vec_mean)
• AEM position indicator(home_signal)
• Bottom relative humidity (fractional)(rh_bottom_fraction)
• Bottom air temperature(temp_air_bottom)
• Reference temperature in enclosure(temp_reference)
• Atmospheric pressure(atmos_pressure)
• Top T/RH sensor temperature(temp_trh_top)
• Top vapor pressure(vapor_pressure_top)
• time_in_seconds_since_volume_start(time)
• Wind direction vector mean(wdir_vec_mean)
• Wind speed arithmetic mean(wspd_arith_mean)
• Bottom vapor pressure(vapor_pressure_bottom)
• Net radiation(net_radiation)
• Top air temperature(temp_air_top)
• Top relative humidity (fractional)(rh_top_fraction)
• Bottom T/RH sensor temperature(temp_trh_bottom)
• Wind direction vector mean standard deviation(wdir_vec_std)