Mettler Toledo M400 Type 1 Transmitter (4-Wire)

The Mettler Toledo M400 Type 1 (4-Wire) is a multiparameter process transmitter for pH, ORP, and conductivity measurement.

Compatibility with analog and ISM sensors provides flexibility when integrating the transmitter with supported process analytical sensors.

The transmitter combines a touchscreen user interface with multiple current outputs, relay contacts, HART communication, and PID control capabilities.

Its ½ DIN, IP66-rated configuration supports installation in a range of industrial process monitoring and control applications.

Process Controls Corporation - Mettler Toledo M400 Type 1 Transmitter (4-Wire)

Key Characteristics

Supports pH, ORP, and conductivity measurement parameters
Compatible with analog and ISM sensors
Four configurable 0/4–20 mA current outputs
HART communication for integration with compatible control and asset-management systems
Four relay contacts and PID controller functionality
4.0-inch black-and-white TFT touchscreen with four soft keys
Accepts 100–240 VAC or 20–30 VDC power
IP66 protection rating
Hazardous area approvals for applicable Zone 2 and Class I, Division 2 installations

Ideal Applications

Inline pH and ORP measurement in industrial process streams
Conductivity monitoring for process liquids and water-treatment operations
Process control points requiring current outputs, relay functions, or PID control
Installations integrating analytical measurements through HART communication
Applications requiring compatibility with supported analog or ISM sensors