Technical Data Sheet – IDM

The Intrinsically Safe Digital Monitor (IDM) provides optical isolation between two separate intrinsically safe Ex ia circuit configurations, or an intrinsically safe circuit to a non-intrinsically safe [Ex ia] circuit configuration. Its digital output switches state when the input signal, a standard 4 to 20mA current input or a 9 to 30VDC voltage input, is above or below a set point configured by the user.