Rosemount 644HANA1K5M5 HART Temperature Transmitter, SIL2 Certified 4-20mA Universal RTD/Thermocouple Field Mount Transmitter with Enhanced Stability

Rosemount 644HANA1K5M5 Field Mount Universal Temperature Transmitter with SIL2 Safety Certification

Encoded Configuration Breakdown of Rosemount 644HANA1K5M5

Official Datasheet Suffix Parameter Definition

Every character sequence of Rosemount 644HANA1K5M5 defines factory-locked hardware and functional configurations, requiring no field modification for standard deployment. Each suffix corresponds to mounting style, signal compatibility, communication protocol, safety grade and environmental specifications for precise project matching.

• 644: Premium universal industrial temperature transmitter platform with multi-sensor compatibility and intelligent diagnostic functions

• H: Field mount housing design, built for direct on-site equipment installation instead of cabinet or sensor head mounting

• A: Universal input support for RTD, thermocouple, ohm and millivolt process sensor signals

• N: No local LCD display, optimizing structural compactness for harsh field installation spaces

• A: Standard 4-20mA analog output with superimposed HART 7 digital communication protocol

• 1: Standard non-hazardous general-purpose industrial grade configuration

• K5: Enhanced long-term stability calibration, supporting 5-year consistent measurement accuracy retention

• M5: SIL2 safety integrity certification compliant with IEC 61508 industrial safety standards

SIL2 Safety Performance & Enhanced Operational Stability

Safety-Compliant Industrial Grade Performance

Rosemount 644HANA1K5M5 carries authoritative SIL2 certification, meeting strict safety requirements for critical process control loops. The safety-rated design eliminates abnormal signal output risks during equipment operation, providing reliable temperature data feedback for process interlock and safety monitoring systems. Built-in fault self-checking mechanisms ensure timely anomaly detection to avoid unplanned process shutdowns.

5-Year Long-Term Measurement Consistency

Equipped with K5 enhanced stability configuration, Rosemount 644HANA1K5M5 maintains exceptional measurement accuracy over extended service cycles. The unit sustains stable readings with minimal drift, reducing routine calibration frequency and cutting long-term equipment maintenance costs. Optimized circuit shielding resists ambient temperature interference and electromagnetic signal fluctuation in complex field environments.

Universal Sensor Input & Precision Conversion Capacity

Multi-Type Sensor Compatibility

Rosemount 644HANA1K5M5 supports full-spectrum industrial temperature sensor access, covering all mainstream RTD and thermocouple models, resistance signals and low millivolt inputs. Broad signal compatibility unifies plant instrument specifications, eliminating the need for multiple dedicated transmitters for different field sensors and simplifying spare parts inventory management.

High-Accuracy Signal Linearization

Professional built-in linearization algorithms correct non-linear temperature sensor characteristics, outputting standardized linear 4-20mA signals for DCS and PLC system identification. The transmitter achieves ultra-low measurement error, fully meeting high-precision temperature monitoring demands for continuous industrial production processes.

HART 7 Communication & Electrical Loop Adaptability

Dual Analog-Digital Signal Transmission

Rosemount 644HANA1K5M5 integrates 4-20mA analog transmission and HART 7 digital communication on a single two-wire loop. Analog signals ensure real-time process variable transmission for basic control systems, while digital HART signals support remote parameter configuration, diagnostic query and calibration data recording.

Wide-Range Loop Power Adaptation

The two-wire loop power design supports 12V DC to 42.2V DC operating voltage, adapting to diverse industrial power distribution conditions. Standard 600Vrms input-output isolation effectively suppresses ground loop noise and crosstalk, ensuring stable signal transmission in high-interference field environments.

Field Mount Structure & Industrial Application Advantages

Harsh Environment Structural Adaptability

Field-mounted housing of Rosemount 644HANA1K5M5 features robust industrial protection, adapting to outdoor field equipment, pipeline installation and non-ventilated workshop environments. The reinforced structure resists mechanical vibration, dust accumulation and moisture erosion, supporting 24/7 uninterrupted field operation.

Core Selection Reasons & Application Scenarios

Industrial users select Rosemount 644HANA1K5M5 for its combined safety certification, long-term stability and universal compatibility. The SIL2 rating fits critical process safety monitoring, while 5-year stable performance reduces operational workload. Field mount layout suits decentralized field measurement points that cannot adopt cabinet or head-mounted transmitters.

This transmitter applies to petrochemical process loops, power generation auxiliary systems, chemical manufacturing and industrial water treatment temperature monitoring, serving both conventional automation control and safety-related process monitoring scenarios.