Input Capability:Dual and single sensor with universal input types (RTD, T/C, mV, ohms)
Output Signal:4-20 mA/HART®, FOUNDATION™ fieldbus, PROFIBUS® PA protocols
Housing Configuration:DIN head mount, field mount, rail mount options
Display/Interface:LCD display, LCD display with Local Operator Interface (LOI)
Diagnostic Features:Basic diagnostics, hot backup™ capability, sensor drift alert, thermocouple degradation, min/max tracking
Calibration Options:Transmitter-sensor matching (Callendar-Van Dusen constants), 5-point calibration
The Rosemount 644HAI1J6Q4M5 Temperature Transmitter is engineered for precision in demanding industrial environments. Its advanced design ensures reliable performance under extreme conditions.
Featuring an enhanced LCD display with Local Operator Interface, this transmitter provides intuitive access to real-time data, diagnostics, and setup options, streamlining maintenance and troubleshooting processes.
With a wide operating range from -40°C to +150°C, this transmitter is suitable for a variety of industrial applications, from chemical processing to HVAC systems, ensuring accurate temperature monitoring.
Equipped with selectable revision protocols (4-20 mA/HART®, Foundation Fieldbus, PROFIBUS® PA), it offers flexibility for integration into existing control systems, enhancing operational efficiency.
Certified for SIL3 compliance, the transmitter guarantees safety in critical systems, backed by IEC 61508 certification from an accredited third-party agency. It ensures reliable performance in safety instrumented systems, meeting minimum requirements for single use (1oo1) for SIL 2 and redundant use (1oo2) for SIL 3.











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