forgoreth
Newbie level 6
I have a few LTS-06NP current transducers and I'm having trouble about the wiring (I think)
First of all I supplied the output circuitry with 5 Volts and checked the output giving 2.5 Volts. It looks all fine.
Then I placed a wire going through the hole and carrying the current that I set and check the output voltage again.
It was not like what its transfer function says.
Vout=2.5+0.625*Ip/Ipn
I thought it was about the connections of 6-pin input hall effect circuitry. I connected the pins in three different combinations as datasheet says; the output is the same.
Moreover, I connected the primary current path to those pins instead of the hole and it looks the same!
I measured the input current and output voltage to fill a table in order to derive the transfer function.
It's amazingly linear!
Vout=2.5+0.0258*Ip
If the original coefficient 0.625 is still there, it looks like nominal primary current according to formula in the datasheet is 24Amps! Impossible!
I tried 3 sensors and they are all the same... Am I doing something wrong? How should I connect those pins?
Thanks in advance
First of all I supplied the output circuitry with 5 Volts and checked the output giving 2.5 Volts. It looks all fine.
Then I placed a wire going through the hole and carrying the current that I set and check the output voltage again.
It was not like what its transfer function says.
Vout=2.5+0.625*Ip/Ipn
I thought it was about the connections of 6-pin input hall effect circuitry. I connected the pins in three different combinations as datasheet says; the output is the same.
Moreover, I connected the primary current path to those pins instead of the hole and it looks the same!
I measured the input current and output voltage to fill a table in order to derive the transfer function.
It's amazingly linear!
Vout=2.5+0.0258*Ip
If the original coefficient 0.625 is still there, it looks like nominal primary current according to formula in the datasheet is 24Amps! Impossible!
I tried 3 sensors and they are all the same... Am I doing something wrong? How should I connect those pins?
Thanks in advance