Description
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A customizable transmitter design that meets your requirements within a single product series
• DIN-rail mounting
• 4–20 mA/HART Revision 7
• IEC 61508 certified by a recognized third-party organization for use in instrument safety systems meeting SIL 3 requirements
• Single or dual sensor inputs for RTD, thermocouple, mV, and ohms
• Diagnostic suite
• Transmitter-sensor matching
Standard transmitter design delivers flexible, reliable performance in process environments
• Direct connection of sensors to digital control systems provides higher measurement accuracy and reliability while reducing installation costs
• One-year stability guarantee helps reduce maintenance costs
• Open-circuit/short-circuit sensor diagnostics help detect issues in the sensor loop
• Ambient temperature compensation enhances transmitter performance
Applications
• Chemical, oil and gas, power, pharmaceutical, and water treatment
• Dense temperature monitoring in control cabinets/control rooms
• Safety Instrumented Systems (SIS) loops
• Applications requiring high-precision, high-stability temperature measurement
Accessories and Documentation
• Compatible sensors: 214C thermocouple, 0085 clamp-on, Pt100 RTD
• Configuration tools: 475 handheld programmer, AMS, LOI (M4)
• Official documentation: Product datasheet, certificates
Why Choose the 644 DIN Rail Model
• Space-saving: Slim DIN rail design for higher density
• Cost-effective: Direct sensor connection reduces wiring and compensation leads
• Low maintenance: Long-term stability + intelligent diagnostics minimize downtime risk
• High safety: SIL3 certified for reliable critical loops
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