Martens Martens Isolating Signal Converter, TV500L-1-0-0-5, 0 to 20mA AED1,010.00 (Incl.VAT) Isolating signal converter TV500L can be used to isolate and convert unipolar or bipolar field signals into industry standard unipolar 0/4..20 mA and 0/2..10 V DC or bipolar signals for process control systems. The output characteristic curve is... Add to Cart Buy Now