Mettler Toledo M300 Series Flow Transmitter Operation Manual

About this manual

The Mettler Toledo M300 Series is a single-channel online process control instrument designed to measure flow values by processing frequency signals from various pulse-frequency flow sensors. It features a large four-line backlit LCD display capable of showing both numerical data and character information simultaneously.

This manual details the complete operation of the device, including safety guidelines, physical appearance for 1/4DIN and 1/2DIN models, installation procedures (panel or wall mounting), power connection, sensor wiring configurations, and menu navigation. It also covers quick setup steps, calibration modes, PID control settings, system configuration, troubleshooting, and technical specifications. This manual is written in Chinese.

What's inside

• Introduction
• Safety Guidelines
• Appearance
• Installation Guide
• Power Connection
• Sensor Connection
• Quick Setup
• Calibration
• Configuration
• PID Settings

Specifications

Frequently asked questions

What are the power supply requirements for the M300 transmitter?

The device can operate on DC 20-30V or AC 100-240V.

What is the protection level of the 1/4DIN model?

The 1/4DIN model has a NEMA 4X/IP65 protection rating after installation.

Can the M300 work with sensors from different manufacturers?

Yes, it can be used with various pulse-frequency flow sensors produced by different manufacturers.