The Micro Motion 4200 is a two-wire transmitter designed for compatible Micro Motion Coriolis flow and density meters. Its loop-powered architecture combines power and signal transmission through a single pair of wires, making it suitable for installations where wiring and power infrastructure need to be minimized.
The transmitter supports HART communication, diagnostic functions, and time-stamped process records. Smart Meter Verification™ helps assess meter integrity, while optional output configurations and wireless connectivity support integration into different plant architectures. Measurement performance depends on the connected sensor and selected configuration.
Key Features
- Two-wire loop-powered design to simplify installation and reduce cabling requirements
- HART communication over a loop-powered 4–20 mA output
- Coriolis measurement support for mass flow, density, and related process variables through compatible sensors
- Smart Meter Verification™ for in-process meter integrity assessment
- Onboard data historian with time-stamped process data, alerts, verification reports, and audit logs
- Multilingual graphical display supporting eight languages
- Optional second output channel for 4–20 mA, frequency, or discrete output, depending on configuration
- Optional WirelessHART™ connectivity using a compatible THUM™ Adapter
- SIL 2/SIL 3 certification for specified safety applications according to IEC 61508
Suitable Applications
- Chemical processing
- Oil and gas production
- Petrochemical facilities
- Liquid and gas flow measurement
- Industrial process control
- Batching and loading operations
- Density and concentration monitoring
- Existing two-wire flow device replacement
- Safety-related flow measurement
Technical Highlights & Selection Considerations
- Power and wiring: The 4200 uses a two-wire, loop-powered design. Verify available loop voltage and wiring requirements for the complete installation.
- Sensor compatibility: Confirm compatibility with the exact Micro Motion sensor model. Available sensor combinations determine measurement performance and supported variables.
- Measurement accuracy: Compatible liquid and slurry applications can achieve mass flow accuracy up to ±0.10% of rate, while gas applications can achieve up to ±0.25% of rate, depending on the sensor and operating conditions.
- Output configuration: Channel A provides loop-powered 4–20 mA/HART. A second channel supporting 4–20 mA, frequency, or discrete output is an optional, licensable feature.
- Wireless communication: WirelessHART requires a compatible THUM™ Adapter and appropriate system configuration.
- Data historian: Time-stamped process and diagnostic records support traceability and troubleshooting. Confirm the required recording functions for the application.
- Safety certification: The transmitter is certified for specified SIL 2 single-use and SIL 3 multiple-use safety applications. Verify the certificate, configuration, and requirements of the complete safety function.
- Installation type: Field-mount, integral-mount, and remote-mount arrangements are available for supported sensor combinations. Confirm the required mounting and wiring arrangement before ordering.
Frequently Asked Questions
Q1: What is the Micro Motion 4200 2-Wire Transmitter used for?
It processes signals from compatible Coriolis meters for industrial flow and density measurement, process monitoring, and control.
Q2: What is the benefit of its two-wire design?
Power and signal share the same pair of wires, which can reduce cabling, installation effort, and infrastructure costs.
Q3: What measurement accuracy can it achieve?
With compatible sensors, liquid and slurry mass flow accuracy can reach ±0.10% of rate, while gas mass flow accuracy can reach ±0.25% of rate. Actual performance depends on the sensor and application conditions.
Q4: Does the Micro Motion 4200 support density measurement?
Yes. When paired with a compatible Coriolis sensor, it supports density measurement. The available variables depend on the sensor and configuration.
Q5: What is Smart Meter Verification™?
It is a diagnostic function that assesses the condition of a compatible Coriolis meter and helps identify possible effects from erosion, corrosion, or other influences on meter performance.
Q6: Is the Micro Motion 4200 suitable for safety instrumented systems?
Specified configurations are certified for SIL 2 single-use and SIL 3 multiple-use safety applications under IEC 61508. Suitability must be confirmed for the complete safety function and installation.
