Industrial organizations must ensure thermowell designs are robust enough to cope with the forces produced by process media. One of the main considerations when ordering thermowells is the calculation of associated wake frequency.
When configuring a new process temperature measurement, many users like to begin by working through a classic engineering question: Should I use a thermocouple (TC) or resistance temperature detector (RTD)?
Imagine a machinist running a screw machine, turning out hundreds of parts with a male thread. To verify the thread size is in tolerance, he or she checks samples using two gauges with corresponding female threads.
Winters Instruments, Toronto, Ontario, extended its five-year warranty to cover all products effective immediately. This includes its thermometers, temperature sensors, valves, thermowells, pressure gauges, pressure transmitters, pressure switches, diaphragm seals and all accessories.
The X-well Technology with a Rosemount 3144P transmitter works with the company’s WirelessHart X-well Technology to extend nonintrusive temperature sensing technology for users in conventional wired I/O environments.
RTD and thermocouple temperature sensors need to be in close proximity to the point of measurement. In most cases, however, they are not rugged enough to be inserted directly into the gas or liquid of interest. As a result, these sensors must be protected by thermowells or installed against a pipe or vessel to take a surface-temperature measurement.
Measuring temperature across a process unit — for example, a furnace, desalter, hydrofiner, fixed-bed reactor or hydrocracker in refineries or similar process units in chemical plants — leads to improved process control, increased catalyst life, more efficient production, fewer process upsets and decreased emissions.
Use this online matrix to find suppliers of RTDs, thermocouples, thermometers, thermistors and temperature transmitters.
November 3, 2014
Process Heating’s Equipment Overview on Temperature Sensors offers a side-by-side comparison of manufacturers of temperature sensors for industrial applications. You can use the chart to find manufacturers that offer the temperature sensors you want, whether that is thermistors, RTDs, thermocouples, thermal imaging equipment, temperature transmitters or thermometers.