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Emx4 Analog Ground On Pump Control Card.

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#1 marke

marke

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Posted 02 April 2017 - 01:43 AM

The first release pump control cards have three analog inputs for connection to transducers such as pressure and flow transducers.

Each 4-20mA has a dedicated positive terminal for loop powered transducers.

Many FLow meters are active outputs rather than loop powered.

The pump control card lacks a ground terminal for connection to active 4-20 mA transducers.

 

Use R1 of the RTD input as a ground terminal and all works well.

The R1 terminal is connected to the zero volt line in the pump control starter.

 

Best regards,

Mark.






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