Color

Status

Description

--

off

channel inactive

channel active and no input signal received, or input signal received but not measurable (<1% of full scale value)

Green

on

channel active and measurable input signal received

Red

on

U: channel active and input signal outside measuring range

I; ±20 mA: channel active and input signal outside measuring range

I; 0…20 mA DC: channel active and input signal outside measuring range and/or reverse polarity

I; 4…20 mA DC: channel active and input signal outside measuring range and/or reverse polarity or broken line or unwired input