Simpson 01312 Model 186 Current Transformer

The model 186 current transformer converts a current signal to a 0-10 AC Volt signal. This signal can be easily transmitted to a remote location with little Voltage drop. The VA rating of a typical Donut Current Transformer allows only about 15 feet of wire between Donut and display unit. By converting the current signal to a voltage signal, the line loss to the display unit becomes a negligible factor over a greater distance. These units are also about a third of the price compared to transmitters that amplify and isolate a current signal. Analog rectifier type meters can have custom dials installed to display the current value of the transformer. A digital display meter can be scaled to the current value easily, but a 20,000 ohm 1/2 watt shunt is required across the secondary of the current transformer for accuracy to be maintained.