My employer manufactures one under licence to Weidmuller, but it is not CE marked so it can't go to Europe. In fact I believe it is only available in North America. I will check. Unfortunately for reasons too long to explain, it is not on the web, but if you are in the right area, I will get someone to send you the data. It has a resistor programmable front end, has a 4-20mA output and is powered from 24VDC.

You could try signal conditioners that isolate voltage/voltage or voltage/current and use an external divider on the input if they don't have the 300V input. Again look at the Weidmuller range (this time available worldwide) www.weidmuller.com.
Depending on your power supplies try this
http://catalog.weidmueller.com/cgi-bin/c...resh=false

or

http://catalog.weidmueller.com/cgi-bin/c...resh=false

The latter is limited to 10Hz- there is one with a 10KHz frequency response.


Also check out the Ultra-Slimpak products from Action Instruments
(http://www.actionio.com/).

B & B Electronics carry a range (www.bb-elec.com) and also look at Omega (www.omega.com)

In truth almost any manufacturer of analog signal conditioners is likely to have signal isolator, as long as you use external resistors.

You can actually get terminals (TS32 or TS35 rail mounting) that will allow you to set up the resistors internally, so that they are not exposed. I am not at work, so I don't have the data to hand. I only have access to Weidmuller products. If you do want to pursue this further, let me know and on Monday I can help you further.


-Aubrey