AxelB Posted June 11 Share Posted June 11 Hi there, I am looking for a product to measure Up to 400V DC, with the possibility to see the values over an App in the web Can somebody help? Thx Quote Link to comment Share on other sites More sharing options...
supportadmin Posted June 12 Share Posted June 12 Hello, Unfortunately we do not have such product available on the market. Quote Link to comment Share on other sites More sharing options...
Damjan64 Posted June 25 Share Posted June 25 Shelly Plus Uni has an analogue input (ANALOG IN) which is designed to measure voltages from 0 to 15V. With a resistive divider, the measuring range can be extended to 400 V DC. wiki - voltage divider Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted June 25 Members Share Posted June 25 (edited) Due to the fact, the resistance values of the internal voltage divider are known, only one resistor has to be determined: The internal divider manages 30V DC. Thus, enlarging the 470kΩ to 6,846MΩ does the trick. Cause the 470kΩ resistor cannot be changed easily, a series resistor of 6,376MΩ will be suitable. Has to be composed of multiple resistors - if only because of voltage withstanding. Edited June 25 by thgoebel Quote Link to comment Share on other sites More sharing options...
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