Integrated Ultrasonic Level Meter Without Interference: How Many Meters Can a 2-Wire 4-20 mA Signal Transmit?
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Dayu ElectronicsIntegrated Ultrasonic Level Meter: Under the premise of no electromagnetic interference, how many meters can the 2-wire 4-20 mA signal transmit?
1. The power supply has no electromagnetic interference.
2. There is no electromagnetic interference on the output signal lines.
3. There is no electromagnetic interference radiated from the air.
For 2-wire 4-20 mA transmission within 100 meters, use 2*0.5 sq.mm shielded cable.
For 2-wire 4-20 mA transmission within 200 meters, use 2*1.0 sq.mm shielded cable.
For 2-wire 4-20 mA transmission within 300 meters, use 2*1.5 sq.mm shielded cable.
For 2-wire 4-20 mA transmission within 400 meters, use 2*2.5 sq.mm shielded cable.