Mettler Toledo M400 Type 3 Transmitter
(4-Wire)

Its die-cast aluminum enclosure, IP66 protection rating, AC or DC power options, and hazardous-area approvals support installation across a range of process applications.

Key Characteristics

• Single-channel, four-wire multi-parameter transmitter compatible with analog and ISM sensors
• Supports pH/ORP, conductivity, dissolved oxygen, gas-phase oxygen, dissolved CO2, dissolved ozone, and GPro 500 TDL measurements
• 4.0-inch black-and-white TFT touchscreen with four soft keys
• Four 0/4–20 mA current outputs, four relay contacts, two digital inputs, and HART communication
• USB interface for configuration transfer and data-management functions
• Die-cast aluminum, 1/2 DIN enclosure with an IP66 protection rating
• Operates from 100–240 VAC or 20–30 VDC power supplies
• Available with approvals for applicable Zone 2 and Class I, Division 2 installations

Ideal Applications

• Multi-parameter analytical measurement in chemical processing operations
• Food and beverage production requiring in-line liquid analysis
• Pharmaceutical and life sciences process measurement
• Industrial water and wastewater treatment systems
• Gas-phase oxygen measurement and GPro 500 TDL installations
• Process loops requiring local display, analog outputs, alarms, and connection to plant control systems

Parameters

• Conductivity
• Dissolved CO2
• Dissolved Oxygen
• Dissolved Ozone
• GPro500 TDL Gases
• Gas-Phase Oxygen
• ORP
• Optical DO
• pH

Communication

• HART

Product Family Includes

• M400 Type 3 single-channel, four-wire transmitter
• Analog and ISM sensor measurement configurations
• Liquid-phase configurations for pH/ORP, conductivity, dissolved oxygen, dissolved ozone, and dissolved CO2
• Gas-phase configurations for oxygen measurement and GPro 500 TDL systems

Industries Served

• Chemical Processes
• Food/Beverage Production
• Other Industrial Processes
• Other Water Processes
• Pharmaceutical/Life Science Production
• Wastewater

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