Negative Pressure Meter Setup
I set up this negative pressure meter output1 OFF output2 OFF. And output1 will be ON when output1 reach its max protect value. And output2 will be ON when output2 reach its max protect value.
The most important thing is that there are 5 cables at most of meter and need to output1 or output2 control signal. Power cable and ground wire and output1 output2 and data.
