The M400 2XH Type 3 is a single-channel, two-wire multiparameter transmitter designed for intrinsically safe process measurement applications.
It accommodates analog and digital sensor technologies for monitoring multiple liquid and gas parameters through one transmitter platform.
Supported measurements include pH, ORP, pH/pNa, two-electrode and four-electrode conductivity, dissolved oxygen, dissolved CO2, and gas-phase oxygen.
This broad parameter range makes the transmitter suitable for process installations requiring flexible sensor selection and hazardous-area compatibility.

Key Characteristics
- Single-channel, two-wire multiparameter transmitter
- Intrinsically safe configuration for applicable hazardous-area installations
- Compatible with analog and digital sensor technologies
- Supports pH, ORP, and pH/pNa measurement
- Accommodates two-electrode and four-electrode conductivity sensors
- Supports dissolved oxygen, dissolved CO2, and gas-phase oxygen measurement
Ideal Applications
- pH and ORP measurement in industrial process streams
- Conductivity monitoring using two-electrode or four-electrode sensors
- Dissolved oxygen and dissolved CO2 measurement
- Gas-phase oxygen monitoring
- Multiparameter process measurement in intrinsically safe installations
Parameters
- Conductivity
- Dissolved CO2
- Dissolved Oxygen
- Gas-Phase 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







