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- Languages
- ZH
- Last added
- 2026-10-06
Featured VMS manuals
VMS VMS-300B-PH-N01-201 pH Transmitter User Manual
This manual introduces the VMS VMS-300B-PH-N01-201 pH transmitter, describing its high‑precision AD conversion, temperature compensation, RS485 MODBUS‑RTU communication, and built‑in watchdog. It outlines the main features, measurement ranges, and typical applications such as power plants, chemical, and water treatment.
The document details hardware installation, wiring, menu operation, electrode and ORP calibration procedures, alarm and hysteresis configuration, communication settings, and safety/maintenance guidelines. It also includes register addresses for Modbus communication and troubleshooting advice. This manual is written in Chinese.
Covers: Product Overview · Hardware Connection · Instrument Use · Electrode Calibration · ORP Calibration · Alarm and Hysteresis Settings
Latest VMS manuals
VMS VMS-300B-PH-N01-201 pH Transmitter User Manual
User Manual 20 pages · 2 MB · ZHThe VMS VMS-300B-PH-N01-201 user manual provides product overview, hardware connection, operation, calibration, alarm settings, communication protocol, and…
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in VMS manuals
How can I set high and low alarm thresholds?
Use the menu items 1 and 2 to set the high‑alarm and low‑alarm values; the allowed range is –20.00 to 20.00 pH.
What communication protocol does the transmitter use?
The device supports RS485 communication using the MODBUS‑RTU protocol, with configurable baud rate (default 4800 bit/s).