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M420 Transmitter Series - Discontinued Product

For hazardous area applications

The M420 transmitter series stands for reliability in loop-powered applications. When your process requires the highest safety level for pH, oxygen and conductivity  measurement, the M420 brings you the best performance and the advantages of the state-of-the-art ISM technology* for efficient maintenance.

Discontinued since: Dec, 2016

▲Analytical Transmitter M400
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Replaced with: Transmitter M400 2H

Reliable 2-Wire Transmitter

Reliable 2-Wire Transmitter.This M400 2-wire transmitter provides the highest reliability and process safety in hazardous and non-hazardous areas. Advanced ISM functionality enables predictive maintenance to help reduce costs and improve productivity.

Outstanding Reliability and Safety

The M400 2-wire provides outstanding reliability and process safety thanks to advanced ISM functionality and its rugged aluminum die cast housing.

Designed for Versatility

This transmitter accepts pH, ORP, Conductivity, DO, and dissolved CO2 sensors as well as both analog or digital ISM sensors, giving flexibility in use.

Easy System Integration

The HART interface allows easy system integration and offers remote access to the transmitter and sensor diagnostics

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Documentation - M420 Transmitter Series

Case Studies

Process Instrumentation
Process Analytics
pH/ORP (Redox) Probes, Oxygen, CO₂, Ozone Sensors, Bioburden, Total Organic Carbon, Gas, Sodium, Silica and Chloride/Sulfate Analyzers, Transmitters

Applications

Application Note: pH Control in Sour Water Stripping
Application Note: pH Control in Sour Water Stripping
In petroleum refining, so called sour water (process water that contains dissolved hydrogen sulfide – H₂S) is produced in various processes. Due to en...
Process Instrumentation
Process Analytics
pH/ORP (Redox) Probes, Oxygen, CO₂, Ozone Sensors, Bioburden, Total Organic Carbon, Gas, Sodium, Silica and Chloride/Sulfate Analyzers, Transmitters
Ensuring Safety in Reactor and Centrifuge
Ensuring Safety in Reactor and Centrifuge
Critical reaction and extraction stage in an API production process can be ensured safe with inline gas-phase oxygen sensing technology which eliminat...

Related Products and Solutions

DO Sensor InPro6800/12/070
DO Sensor InPro6800/12/070
The InPro 6800 dissolved oxygen sensor with 12 mm diameter body provides maximum accuracy and ultimate cleanability.

Accessories - M420 Transmitter Series

Specifications- M420 Transmitter Series