36AN-1000-120VAC
4-20mA Installation
The above diagram shows a 4-20mA sensor hooked to channel 1 input. The 250 Ohm input resistor will
drop a voltage of 1 Volt at 4mA and 5 Volts at 20mA. The sensor may be of any type and voltage that
has a 4-20mA output. Even if the sensor runs on a voltage higher than 5 volts the current is still
maintained between 4 and 20 milliamps so that the voltage drop on the resistor is always between 1 and
5 volts. Remaining voltage is dropped internally in the sensor. Loop powered sensors are not able to be
used on this particular unit.