Couldn’t find DTS-12 turbidity sensor address

I am trying to connect DTS-12 with mayfly data logger.

With this instruction https://www.envirodiy.org/topic/logging-mayfly-with-decagon-sdi-12-sensor/, I am using Grove – Screw Terminal to connect the sensor. Red is connected to vcc,black to gnd and white(the data) to D2. The screw terminal is then connected to D 4-7.
When I start the program to change the address, the wiper of this sensor runs. This needs around 12V of power. So, the mayfly is doing this. But the code output is “No sensor detected. Check physical connections.”. This is the code that I am using https://github.com/EnviroDIY/Arduino-SDI-12/blob/master/examples/b_address_change/b_address_change.ino