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Delta RMC101 User Manual

Page 546

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RMC100 and RMCWin User Manual

6-2

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If you are using a 10V transducer output, but are only using values in the low 5V, it is

recommended that you select a 5V setting to increase the resolution of the analog to digital conversion.

Using the Exciter Output Pin with Potentiometer Feedback
An exciter output pin is provided on the RMC analog modules as a convenience and also to
increase the accuracy of the analog to digital conversion. This pin generates +10V with respect to
the CMN pin. If a potentiometer type transducer is used, the following configuration is
recommended:

Because the exciter voltage is the same voltage used as a comparison for the analog to digital
conversion, the transducer is protected from being affected by increases in this positive voltage
supply.

Using Current Feedback Transducers
Current feedback transducers are connected in the same way as voltage transducers except that
a jumper must be inserted between the +In and Res connections. This places a resistor internal
to the RMC across the two inputs, thus converting the current to a voltage input. The following
wiring diagram shows a suggested configuration:

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