APPLICATIONS
• Isolated signal conversion
• Eliminate ground loop wiring problems
• Variable frequency motor drive signal isolation
• Electric actuator isolation
• Easily interface recorders, data loggers and controllers
• Interface and isolate DDC, EMS and HVAC panels

PRODUCT DESCRIPTION
The GT-AI420 analog isolation module is a 2 wire looppowered
4-20 mA signal isolator with one input/output
channel. It will accept one analog, current or voltage
output, input signal, isolate it and sink a current output
signal. The input signal has several fixed ranges for various
applications.
The device derives it’s operating power from the output
current loop that is provided by the receiving device and
has an on-board transformer that provides complete input/
output isolation.
Both the input and output are sinking type and the input
signal types are easily selected with DIP switches.