Hello, I am developing a project where I have a load cell mV signal that needs to be amplified to a 4-20mA signal for a PLC to read. However, I need this project to be noise resistant.
When using a handheld 2 way radio next to the load cell amplifier, the mA output readings jump all over the place +/- up to a few mA.
https://www.brightwinelectronics.com/product/load-cell-amplifier-2-0mv-din-rail-mounted
I recently tested this board which says "The internal embedded active low pass filter can effectively filter electromagnetic interference in industrial site."
From a load cell simulator I have the E+ E- S+ S- and shield connected, and for the output I have the 24v supply powering it, and 2 wires connected to I0 (current out) and "com" in a shielded cable being where I get my 4-20mA reading. I also have one end of the shield wire connected to the same ground that is connected to the power supply I am using. Am I missing something or wiring the ground/shield wrong?
Everything works accordingly, except this issue with noise.
Any help with this problem would be greatly appreciated!
Thank you, Matt
When using a handheld 2 way radio next to the load cell amplifier, the mA output readings jump all over the place +/- up to a few mA.
https://www.brightwinelectronics.com/product/load-cell-amplifier-2-0mv-din-rail-mounted
I recently tested this board which says "The internal embedded active low pass filter can effectively filter electromagnetic interference in industrial site."
From a load cell simulator I have the E+ E- S+ S- and shield connected, and for the output I have the 24v supply powering it, and 2 wires connected to I0 (current out) and "com" in a shielded cable being where I get my 4-20mA reading. I also have one end of the shield wire connected to the same ground that is connected to the power supply I am using. Am I missing something or wiring the ground/shield wrong?
Everything works accordingly, except this issue with noise.
Any help with this problem would be greatly appreciated!
Thank you, Matt