-
Q How to avoid address conflicts when connecting multiple devices?
Assign a unique address to each device. Use daisy‑chain bus topology instead of star connection. Test communication one by one and use software to scan online addresses.
-
Q RS485 wiring rules and how to set address and baud rate?
Connect A to A and B to B. Add a 120Ω terminator at both ends of the bus. Common baud rates: 2400/4800/9600/19200 (default 9600, 8N1). Set a unique address between 1–247 for each device.
-
Q How to wire signal cables to avoid interference?
Use shielded twisted‑pair cables, separated from power cables by at least 30cm. Ground the shield at one end only to avoid ground loops. System grounding resistance ≤4Ω; for explosion‑proof systems ≤1Ω.
-
Q How to install level probes to avoid turbulence and mixers?
Install the probe at least 300mm away from mixers and inlets. Use a still well or guide tube to stabilize measurement. Ensure no obstacles in the ultrasonic/radar beam path and keep probes away from sludge deposits.
-
Q What should be noted during pressure transmitter installation?
Avoid impact on the measuring diaphragm. Install condensate elbows or radiators for high-temperature media. Prevent air bubbles in impulse lines. Use fixing brackets in vibrating environments and diaphragm seals for corrosive media.
