Learn how a 500Ω resistor converts a 4–20mA signal to 2–10V for a BMS input.
4-20mA to 2-10V resistor, 4-20mA BMS input, 500 ohm resistor 4-20mA, convert current signal to voltage HVAC
If a field sensor outputs 4–20mA but the BMS controller only has a voltage input, can you convert it using a resistor?
Yes, provided the transmitter and input arrangement are suitable.
Using Ohm's law:
V = I × R
With a 500Ω resistor:
17 Views
