Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/09/1998 | 1030 | 01/14/1998 | 1715 | Incorrect |
Subject: | SGP/EBBR/E4 - EBBR E4 Low Battery - Resulting In Incorrect Data |
DataStreams: | sgp30ebbrE4.b1, sgp15ebbrE4.b1, sgp5ebbrE4.b1 |
Description: | A low battery condition (less than 10.5 volts) caused a number of data fields to be incorrect at some times and all data fields to be incorrect at a more limited number of times. All data fields are suspect when the battery voltage drops below 10.5 volts because the CR10 cannot operate properly. Some sensors are affected slightly (i.e. pressure) at slightly larger voltages. The low battery condition resulted from an initially weak battery and a week of extremely low solar radiation (from heavy cloudiness) on the solar panel that provides most of the charging of the battery. Comments added by Marv Wesely: David Cook has been working with Dave Breedlove to try to assess the age of the batteries. The dates on the batteries need to be read during site visits and provided to David C. It's quite possible that they need to be replaced. It's work in progress, though slow at times. |
Suggestions: | |
Measurements: | sgp30ebbrE4.b1: more
sgp5ebbrE4.b1: more sgp15ebbrE4.b1: more |