The surface mount RTD strap-on temperature sensor is very convenient for the measurement of surface temperatures of tanks, pipes, motors, bearings, and various other surface mount applications. The easy strap-on installation method makes it very cost effective to use the sensor for temporary or semi-permanent temperature measurements. Sensors have been environmentally and seismically qualified for use in 1E applications in nuclear power generating stations.

 These sensors can be ordered as non-safety related, offering the same reliability and construction as the safety related version but at a much lower cost.

The RTDs are supplied in accordance with a Quality Assurance Program which is ISO 9001:2000 Registered and is also in compliance with 10CFR50 Appendix B, ANSI N45.2 and ASME NQA-1.

Application assistance is available for special applications and design requirements. Assistance includes physical configuration requirements such as connection head types, leadwire length, quick disconnects and other physical details. Actual installation details can affect measurement accuracy and response time. Such things as RTD contact with the surface, surface cleanliness and isolation from ambient temperatures may cause variations in accuracy and response times. For the best performance consult Factory for application assistance.

 

Specification

 
 
 
 
Performance Specifications		  
   
 
Operating Temperature Range
 
0°F to 500°F (-18°C to 260°C)
 
Accuracy/Calibration
 
Standard sensor accuracy meets IEC 751/60751 Class B. Consult factory if Class A or other special accuracy requirements are needed. Sensor specific calculated calibration tables of resistance versus temperature can be provided. The specific calibration table can be used to obtain sensor accuracies of ±0.3°F (±0.17°C) over a specified temperature interval
 
Drift/Stability
 
Sensor drift is less than 1°F (0.56°C) over 40 years
 
Response Time
 
The response time for each sensor is 5 seconds or less as verified by a plunge test in accordance with ASTM E644 per 63.2% step change. Faster response times are available upon request
 
Insulation Resistance
 
At room temperature and dry external surfaces, the insulation resistance between any terminal and the sensor case will exceed 100 Megohms with 100 VDC applied
 
Operating Current
 
A continuous current of no greater than 20 milliamp (RMS) will not damage the sensor. Standard operating current is 1 to 4 milliamps
 
Self Heating
 
In 68°F (20°C) water flowing traverse to the sensor sheath at 3 feet per second, an RTD with a 0.25 inch diameter sheath is capable of dissipating a minimum of 50mW without causing the indicated temperature to rise more than 1.8°F (1°C)
Environmental/Seismic Qualification
(Applicable Qualification/Test reports are available upon request)
 
 
RTDs are qualified to IEEE-323 1974 & 1983, and IEEE-344 1975 & 1987 and NUREG 0588 for a design life of 40 years. The RTD assembly will withstand 300 Megarads T.I.D. and LOCA conditions. Seismic capability of the RTD is 20g maximum acceleration in the horizontal and vertical plane from 1 to 33 Hz 

 

  

 

 

 

 

Surface Mount Sensors Specifications 

Surface Mount Sensors Specifications

 

Documentation

Please use the links below to view the available documentation.

Product Sheets

Surface Mount RTD
  • Strap-on Mounting
  • 0° to 500°F (-18° to 260°C) Temperature Range
  • Accuracy to meet IEC 60751 Class B
  • IEEE 323-1974 & 1983,
  • IEEE 344-1975 & 1987
  • Easy Installation & Removal
  • Available for Non-safety Related Applications