Current Clamp sensors with T3E-6CT

5

Hi,

Thank you for your response.

I’ve received a new set of current clamp sensors (CT-SP-XX-330mV, where XX - 1A, 5A, 10A and so on). The above mentioned current clamp sensor produces an output signal from 0 to 330 mV ac, proportional to the current.
( Note: I’m currently working on a project that involves reading Modbus registers of the T3E-6CT to obtain the current / output voltage readings of the current clamp sensors using small embedded boards. And so, I require to perform the output voltage to current value conversion programmatically. )

A few questions:

  1. Should the CT-SP-XX-330mV current clamp sensors be connected to only CT input ports of the T3E-6CT GPIO module? Would there be any change if the current sensors are connected to the AI ports ?

  2. On connecting the current clamp sensors to the CT input ports of the T3E-6CT, are the output signals of the sensor converted to current values (Amps) and stored by default in the Modbus registers by T3E-6CT? Or is there any user configuration to be performed using the T3000 software (example: setting the range to '0 - 100 Amps ’ ) ?

  3. For the CT-SP-XX-330mV sensors, should I setup a custom table ( a straight line, min value: 0 V and max value: 330 mV ) and calculate the corresponding reading in Amps? ( similar to the method employed for the CS-SP-50A-DC current sensors)

Thanks in advance.

Regards,
Pranav