The external 12V battery should have a minimum 60 Amp-hour rating. It is recommended you have a higher Amp-hour rating if you have a high report rate, or if your station is in a very remote location and you are not able to replace the battery easily.
- Using the Solinst-supplied Solar/12 Volt Cable Assembly (pt# 109452), shown in Figure 6-5, to connect to a user-supplied external 12V lead-acid battery (minimum 60 Amp-hour). See connection diagram in Figure 6-6.
Solar/12B Cable Assembly (pt# 1094523)
External 12V Lead-Acid Battery Connection
- Using the Solar/12 Volt Cable Assembly (pt# 109452) to connect to a user-supplied Solar Panel (minimum 15 watt) with a built-in regulator for 12V. See Figure 6-7 for the connection diagrams.
Solar panel power will not be available at night or during very cloudy conditions. If Reporting sessions are scheduled for these times, the internal batteries will be used.
External Solar Panel Connection
- Using the Solar/12 Volt Cable Assembly (pt# 109452) to connect to an external user-supplied 12V lead-acid battery (minimum 12 Amp-hour rating), trickle charged with a Solar Panel (minimum 15 W with a regulator for 12V). See connection diagram in Figure 6-8.
External 12V Lead-Acid BAttery with Solar Panel Connection
For more information on installing Leveloggers in the field, see the Levelogger User Guide or STS Gold User Guide.
A solar panel is connected to a RRL station using the Solar/12 Volt Cable Assembly (see Figure 6-7). The solar panel is user-supplied. The panel should output a minimum of 13V open circuit in order to effectively re-charge the batteries. As a guideline, the solar panel should be at least 15 Watts. Higher wattage panels are also suitable. The solar panel must also include a regulator to handle external battery charging cycle.