RS485-MODBUS water meter wiring method:
Red – power supply
Black – Ground
White (yellow) – RS485+
Blue (green) – RS485-
| Flow parameter | ||||||||
| Model | Size | Rate | Q4 | Q3 | Q2 | Q1 | Min.reading | Max.reading |
| Q3/Q1 | M3/h | M3/h | M3/h | M3/h | M3 | M3 | ||
| LXS-15 | 1/2″ | 80 | 3.125 | 2.5 | 0.05 | 0.03125 | 0.00001 | 99999 |
| LXS-20 | 3/4″ | 80 | 5 | 4 | 0.08 | 0.05 | 0.00001 | 99999 |
| LXS-25 | 1″ | 80 | 7.875 | 6.3 | 0.126 | 0.07875 | 0.00001 | 99999 |
| LXS-32 | 1 1/4″ | 80 | 12.5 | 10 | 0.2 | 0.125 | 0.00001 | 99999 |
| LXS-40 | 1 1/2″ | 80 | 20 | 16 | 0.32 | 0.2 | 0.00001 | 99999 |
| LXS-50 | 2″ | 80 | 31.25 | 25 | 0.5 | 0.3125 | 0.00001 | 99999 |
Main performance parameters of RS485 water meter:
External input voltage: 12V;
Battery voltage: 3.6V;
Working current: 3mA;
Quiescent current: 10μ A;
Switching filter time: 500ms;
Communication method: RS485;
Communication protocol: MODBUS (RTU mode);
Baud rate: 9600bps;
Verification: no verification;
Data bits: 8 digits;
Stop bit: 1 bit.
