Mettler Toledo M400 2H Type 2 Transmitter
(2-Wire)

The aluminum die-cast enclosure carries an IP66/NEMA 4X rating, while the 2H configuration is approved for applicable Class I, Division 2 and Zone 2 installations.

Key Characteristics

• Single-channel, 2-wire configuration with a 14 to 30 VDC power supply
• Compatible with analog and digital sensors for multiple process measurement parameters
• Supports pH/ORP, pH/pNa, 2-electrode and 4-electrode conductivity, amperometric dissolved oxygen, optical dissolved oxygen, and pharmaceutical CO2 measurement
• HART communication for access to measurement values, device information, diagnostics, and supported remote functions
• Two isolated 4–20 mA current outputs, two digital inputs, two open-collector digital outputs, and a 4–20 mA analog input for pressure compensation
• 4.4-inch TFT LCD with four tactile-feedback keys and multilingual operation
• Aluminum die-cast enclosure with IP66 and NEMA 4X protection ratings
• Approved for applicable Class I, Division 2 and Zone 2 hazardous-area installations

Ideal Applications

• Single-point process analytical measurement using a loop-powered transmitter
• pH, ORP, and pH/pNa measurement points
• Conductivity and resistivity measurement with compatible 2-electrode or 4-electrode sensors
• Dissolved oxygen measurement using compatible amperometric or optical sensors
• CO2 measurement with compatible pharmaceutical-process sensors
• Process installations requiring HART communication
• Harsh industrial environments and applicable Class I, Division 2 or Zone 2 locations

Parameters

• Conductivity
• Dissolved CO2
• Dissolved Oxygen
• ORP
• pH

Communication

• HART

Product Family Includes

• M400 2XH Type 2
• M400 2H Type 2
• M400 2XH Type 2 ISM
• M400 2H Type 2 ISM
• M400 2XH Type 3
• M400 2XH Type 3 ISM

Industries Served

• Chemical Processes
• Pharmaceutical/Life Science Production

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