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Emerson Smart HART Temperature Measurement Sensor Rosemount 644 Temperature Transmitter

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US $455.00 - 600.00/ Unit
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Emerson Smart HART Temperature Measurement Sensor Rosemount 644 Temperature Transmitter
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Features
Specifications
Product Name: Rosemount 644 Temperature Transmitter
Material: Aluminum, Stainless Steel
Sensor Input Channels: Single Sensor Input
Output Signal: 4-20 MA With HART 5/6/7
4-20 MA With HART 5/6/7: 12-42.4 VDC (minimum 10.5 VDC For Digital Only)
Mounting Options: Head Mount (644H), Rail Mount (644R)
Ingress Protection: IP66/67
Protocol Support: HART, FOUNDATION Fieldbus, PROFIBUS PA
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HART temperature sensor

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Rosemount 644 transmitter

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industrial temperature measurement sensor
Basic Infomation
Place of Origin: China
Brand Name: Rosemount
Model Number: 644
Payment & Shipping Terms
Packaging Details: Carton + wooden box + protection
Delivery Time: 70 working days
Payment Terms: T/T
Supply Ability: 1000 units per year
Product Description
Emerson Smart HART Temperature Measurement Sensor Rosemount 644 Temperature Transmitter
Product Attributes
Product name Rosemount 644 Temperature Transmitter
Material Aluminum, Stainless Steel
Sensor Input Channels Single sensor input
Output Signal 4-20 mA with HART 5/6/7
Power Supply 12-42.4 VDC (minimum 10.5 VDC for digital only)
Mounting Options Head mount (644H), Rail mount (644R)
Ingress Protection IP66/67
Protocol Support HART, FOUNDATION Fieldbus, PROFIBUS PA
Product Overview

The Emerson Rosemount 644 Temperature Transmitter is a smart, HART-enabled device designed for precise temperature measurement in industrial environments. Engineered with advanced diagnostics, it monitors sensor health, loop integrity, and process conditions to minimize downtime. Customizable for RTDs, thermocouples, and millivolts, this transmitter delivers reliable performance in harsh applications like chemical processing, power generation, and oil & gas.

Key Features
  • Smart Diagnostics: Continuous sensor health checks (drift, resistance, wire breaks) with loop integrity monitoring and event logging.
  • Flexible Configuration: Supports RTD (Pt100), thermocouple (Type J/K/T/E), and mV inputs with HART 7 protocol for remote calibration and firmware updates.
  • Durability: IP67/NEMA 4X housing withstands moisture, vibration, and corrosion. Operating temperature range: -40°C to 85°C (-40°F to 185°F).
  • Accuracy: ±0.15°C (Pt100 RTD) for precise process control.
Technical Specifications
Input Types RTD (Pt100), Thermocouple (J/K/T/E), mV
Accuracy ±0.15°C (RTD), ±0.5°C (Thermocouple)
Communication HART 7, AMS Trex compatible
Power Supply 12-45V DC (loop-powered)
Environmental Rating IP67, NEMA 4X
Temperature Range -40°C to 85°C (-40°F to 185°F)
Materials 316L stainless steel, aluminum alloy
Certifications ATEX, IECEx, CSA, FM, CE
Applications
  • Industries: Petrochemicals, pharmaceuticals, power plants, food processing.
  • Processes: Reactor temperature control, distillation, HVAC systems.
  • Environments: Explosive atmospheres, corrosive media, extreme temperatures.
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