Rosemount Temperature Transmitter 644DAI5DCDA1D1M4T1

The Rosemount 644D is with Field mount – dual sensor input (HART only)

Generally speaking, the Rosemount 644  is designed for use in control applications where the loss of the temperature points may be detrimental.

These highly accurate Rosemount 644 are available in a variety of mounting styles, field housings, and communication protocols to meet your demanding installation requirements.

So Each Rosemount 644 is a 2-wire design providing either a 4-20 mA/HART or a completely digital FOUNDATION fieldbus ouput.

Each unit can be configured for a variety of sensor inputs: RTD, themocouple, millivolt, or ohm.

The advanced Rosemount 644  powers PlantWeb ® by communicating important temperature diagnostics and PlantWeb alerts to ensure process health and enable economical single-sensor architecture.

then Entering the temperature-resistance profile specific to the RTD sensor into the Rosemount 644 results in transmitter-sensor matching.

This eliminates the sensor interchangeability error, which can improve accuracy by up to 75%.

The integral LCD display provides local indication of temperature measurement and diagnostics for immediate and accurate verification or process conditions.

Meeting the NAMUR NE 21 recommendations, the Rosemount 644 ensures top transmitter performance in harsh EMC environments.

In addition, the Rosemount 644 HART transmitter meets NAMUR NE 43 and NE 89 recommendations.

The Rosemount 644 offers great mounting flexibility.

In addition, the 644 temperature transmitter has many other features.

■ Enhanced display with Local Operator Interface (LOI)
■ LCD display
■ Integral transient protection
■ Enhanced accuracy and stability
■ Transmitter-sensor matching with Callendar-Van Dusen constants
■ Variety of enclosures