Part 2

Plug-In Assembly Configuration 501The Option 130 assembly provides two 0 - 20 mA or 4 - 20 mA programmable currentsources. Each channel outputs a DC current with programmable range from 0to 20.475 mA in 5 pA increments (for the 0-20 mA range) or from 4 to 20.380mA in 4 pA increments (for the 4-20 mA range).Each current source is isolated from the other and from ground which breaks possibleground loops and permits control of devices floated up to 170 volts above ground.Each source can be configured to operate in the 0-20 mA or 4-20 mA range.Option 130 assemblies, especially when the 4 - 20 mA range is used, can be usedas transmitters in an industrial current loops. Each output will drive an industrial currentloop with up to 600 ohms of total loop resistance.DescriptionAs shown in Figure 147, the Option 130 Current D/A Converter consists of a singleboard with a current source terminal block and a piggy-back board. The currentsource terminal block has connectors for a current source (SOURCE) and current sink(SINK) for each of two channels (channel 0 and channel 1).The assembly is a programmable constant current source which has an output rangefrom 0 to 20.475 mA (in the 0-20 mA range) or from 4 to 20.380 mA (for the 4-20mA range). For example, if you program the assembly to output 10.000 mA to theload, 10.000 mA will be available at the load (regardless of load voltage drop) aslong as the assembly compliance voltage of 12V is not exceeded.Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com