Internally the SGD 420 series uses a Programmable Gain Amplifier (PGA) to make the best use of available resolution. The input voltage range is decided using the two voltages that the user enters in the scaling section of the PanelPilot software. The software uses the smallest range available, which can accommodate both of the voltages entered by the user.
The SGD 420 Series is available from Lascar Electronics immediately starting at a cost of $110.00. It’s always easy to contact us. Call our sales team at (814) 835-0621 or email us at email@example.com for a prompt response.