The Ultra SlimPak G438 is a DIN rail mount, potentiometer input signal conditioner with 1800VDC isolation between DC power and the input/output circuitry. The input provides a constant voltage and is designed to accept any three-wire potentiometer from 100W to 100KW. The field configurable output is switch selectable providing either 0-5V, 0-10V, 0-1mA, 0-20mA or 4-20mA DC signal.
Wide ranging, precision zero and span pots, used in conjunction with DIP switches, allow 80% adjustablity of offset and gain to transmit a full scale output from any 20% portion of the potentiometer input.
The G438's high density DIN rail mounting offers an extremely compact solution for saving valuable panel space.
A major advantage of the G438 is its wide ranging capabilities and ease of configuration.
For example, in a valve positioning application a potentiometer is sometimes used as a feedback signal. Quite often a wide open valve is only a 25% turn of the feedback potentiometer. In this case the G438 can easily be adjusted with the zero and span to provide a full scale output signal (e.g. 4-20mA) representing 0-25% or even 50- 75% of the potentiometer input.
Unless otherwise specified, the factory presets the Model G438 as follows: Input Range: 0 to 100%/Output: 4 to 20mA.
The DC power input accepts any DC source between 9 and 30V; typically a 12V or 24VDC source is used (see Accessories).
For other output ranges, refer to Tables 1 and 2 to reconfigure switches SW1 and SW2 for the desired input and output ranges.