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Rosemount™ 648 Wireless Temperature Transmitter

The Rosemount 648 Wireless Temperature Transmitter offers best-in-class wireless accuracy and stability for process monitoring.
This durable transmitter is designed with a dual-compartment housing for field reliability.

Product Description

The Rosemount 648 offers best-in-class wireless accuracy and stability for process monitoring. This durable transmitter is designed with a dual-compartment housing for field reliability. When combined with Rosemount X-well™ Technology and the Rosemount 0085 Pipe Clamp sensor, this transmitter can provide accurate measurement of process temperature via an in-transmitter thermal conductivity algorithm, eliminating the need for a thermowell or process penetration.


Specifications of Rosemount 648

Input: Single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)

Output Signal: WirelessHART® protocol

Housing: Dual-compartment field mount

Display/Interface: Large LCD display with percent range graph

Diagnostics: Basic diagnostics including open/short sensor diagnostics

Calibration Options: Transmitter-sensor matching (Callendar-Van Dusen constants)

Certifications/Approvals: Hazardous location, marine type, see full specs for complete list of certifications

Update Rate: 1 sec. to 60 min., user selectable

Power Module Life: Up to 10-year life, field replaceable (order separately)

Antenna Type: External (standard and extended range)


Features of Rosemount 648

WirelessHART® technology is secure, cost-effective and delivers >99% data reliability

Best-in-class wireless accuracy and stability for process automation

Durable dual-compartment housing offers added field reliability

Rosemount X-well Technology measures temperature without a process penetration for reduced design, installation and maintenance costs

Transmitter-sensor matching produces better accuracy, matching exact sensor characteristics with the transmitter

LCD display offers access to measurement and diagnostic information in the field, enhancing process visibility

SmartPower™ module provides up to 10-year maintenance-free operation and field replacement without transmitter removal

Easy installation enables quick instrumentation of measurement points without the cost of wiring

If you have any questions, please feel free to contact us! We will give you the most professional answer in the shortest possible time!


Rosemount™ 648 Wireless Temperature 

Transmitter with Rosemount X-well™ Technology

■ Rosemount X-well Technology provides accurate process temperature without the requirement of a thermowell or process penetration. 

■ Industry-leading temperature transmitter delivers field reliability as a wireless measurement solution. 

■ Achieve optimal efficiency with best-in-class product specifications and capabilities. 

■ Wireless delivers innovative wireless solutions for temperature measurement and overall transmitter performance.

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Physical specifications of Rosemount 648

1. Material selection
Emerson Automation Solutions provides a variety of Rosemount product with various product options and configurations including
materials of construction that can be expected to perform well in a wide range of applications. The Rosemount product information
presented is intended as a guide for the purchaser to make an appropriate selection for the application. It is the purchaser’s sole
responsibility to make a careful analysis of all process parameters (such as all chemical components, temperature, pressure, flow
rate, abrasives, contaminants, etc.), when specifying product, materials, options, and components for the particular application.
Emerson is not in a position to evaluate or guarantee the compatibility of the process fluid or other process parameters with the
product, options, configuration, or materials of construction selected.
Conformance to specification 
2. Power module
The Emerson SmartPower Power Module is field replaceable, featuring keyed connections that eliminate the risk of incorrect installation.
The power module is an Intrinsically Safe solution, containing Lithium-thionyl chloride with a polybutadine terephthalate (PBT) enclosure.
The Rosemount 648 has power module life time rating of 10 years with a one-minute update rate.

Rosemount 648

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