4-20ma to 0-10 volts

I have a controller (not PLC ) with a 4-20 ma output signal. I have to add a controller with a 0-10 volts input. Is there a way I can make a convertor to test it out to see if it will work? I don't want to spend a lot of money to test it.
thanks

A 3 cent 500 ohm resistor across the end of the loop at the input terminals of the second device will convert that 4-20mA signal to a 2-10 volt signal. If you can scale the input of the second device to compensate for the 2 volt offset then that is the cheapest solution.

1kOhm pot (across current will get you in the range for voltage) should work for testing. In most cases this will work with a little trial and error and I do recommended if your controlers are reliable and protected.
Optical isolated stuff available
http://controlsignalconverter.com/