The Mettler Toledo M400 2H Type 2 ISM (2-Wire) is a single-channel, low-power process transmitter for use with compatible digital ISM sensors.
It supports pH/ORP, pH/pNa, four-electrode conductivity, amperometric oxygen, optical oxygen, and pharmaceutical CO2 measurement parameters.
This transmitter combines two-wire operation with HART communication, PID control, and two open-collector digital outputs.
Its supported communication and control capabilities make it suitable for single-channel process analytical measurement loops using compatible digital sensor technology.
Key Characteristics
- Single-channel, two-wire, low-power transmitter
- Compatible with digital ISM sensors for pH/ORP, pH/pNa, four-electrode conductivity, amperometric O2, optical O2, and pharmaceutical CO2 measurement
- HART communication for integration with compatible process control and asset-management systems
- Integrated PID control and two open-collector digital outputs
- 14 to 30 VDC power supply
- CE compliant with FM/cFMus Class I, Division 2 approval
Ideal Applications
- Single-channel pH/ORP, pH/pNa, conductivity, oxygen, or CO2 measurement loops
- Process installations using compatible digital ISM sensors
- Measurement points requiring HART communication and integrated PID control
- Compatible Class I, Division 2 process installations
- Pharmaceutical CO2 measurement using supported digital sensor configurations
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
Related Products
Mettler Toledo ISM Digital Sensor Accessories
Mettler Toledo M300 Process Transmitters (4-Wire)
Mettler Toledo M400 Process Transmitters (4-Wire)
Mettler Toledo M800 Process Transmitters (4-Wire)
Mettler Toledo M400 Process Transmitters (2-Wire)