Hot on the bench: Signal Conditioning PCB for LEM CT-200 current sensors.
I just finished soldering the first samples of my signal conditioning PCB for LEM CT-200 current transducers. These devices converts the current output of up to 4 current CT-200 transducers into a voltage. For high precision I use Vishay Z-Foil burden resistors with an accuracy of 0.02% and a very low temperature coefficient. With some reduction in accuracy also CT-100 or CT-60 sensors could be used.
Format: 160 x 100 mm, 4 channels with Vishay Z-Foil 5 Ohm 0,02% burden resistors. Passive cooling. Power Supply: 2 x 18 Volt DC. The 5 Volt Rail for the Sensor Status output is generated by a DC-DC converter on the PCB.
Each Channel has a +-10 Volt (DC) Output and a 1 Volt RMS output on SMA connectors. The 1 Volt RMS outputs are intended to be used with my new-old Norma D6100, the 10 Volt Outputs go to a compact RIO.