Protect Hot Asphalt Tanks using Wireless Temperature Transmitters
The presence of cold spots in asphalt tanks present safety challenges for refineries. Asphalt is added to tanks at very hot temperatures (300-400 F). Hot asphalt has the potential to melt through currently stored asphalt and reach a cold pocket. The convergence of hot asphalt with a cold pocket can cause mositure to flash off violently. This trapped moisture can lead to roof failure and costly tank damage. The Rosemount™ 648 Temperature Transmitter can be used to monitor the asphalt inside your tank and send data to the control system in your facility so that cold spots can be easily identified and avoided during the addition of hot asphalt to the tank.
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Product Solutions
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. 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.
- 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
Input
Single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)
Output Signal
WirelessHART® protocol
Housing
Dual-compartment field mount
The Rosemount 214C RTD Temperature Sensor is a Pt-100, single or dual element resistant temperature detector (RTD) that covers a wide range of temperatures, from -321 to 1112°F (-196 to 600°C). An exceptional solution, this sensor has a thin-film and wire-wound design for application flexibility. With many calibration options, including Class A or B sensor accuracy, this sensor also offers Callendar-Van Dusen constants for transmitter-sensor matching to provide the highest level of accuracy.
- Single or dual element Pt-100 RTD with thin-film or wire-wound designs meets various application requirements
- Thin film sensor engineered to withstand high vibration industrial applications
- Wire-wound design for applications requiring high accuracy, dual-elements and/or are subjected to high temperatures
Temperature Range
For wire-wound element, 0.05 °C (0.020 ) maximum ice-point resistance shift after 1g vibration between 20 and 500 Hz for 150 hours according to IEC 60751:2008
Lead Wires
24 AWG wire, FEP insulated; color coded per IEC 60751
Time Constant / Response
10.8 seconds maximum required to reach 50% sensor response when tested in flowing water according to IEC 60751:2008
