Tuesday, March 10, 2015

What are all the parameters accounted for "Temperature Gauge" Specification sheet/Datasheet?

What are all the parameters accounted for "Temperature Gauge" Specification sheet/Data Sheet?

The following parameters to be considered/accounted while preparing the Specification Sheet or Datasheet of "TEMPERATURE GAUGE"

GAUGE

  1. TAG No.
  2. Service
  3. P&ID No.
  4. Technical Specification (Technical Specification - Instrumentation provided by client)
  5. Line No./Equipment No.
  6. Hazardous Area Classification
  7. Ingress Protection
  8. Temperature Measurement Type (Thermistor/Bi-Metallic Type..etc)
  9. Element Type / Element Material
  10. Instrument Range Min/Max in units(refer the specification for unit of measurements)
  11. Figure Interval (from Vendor)
  12. Minor Graduation (from Vendor)
  13. Accuracy
  14. Over range Protection
  15. Case Design / Case Size
  16. Case Material / Lens Material / Movement Material
  17. Fill Fluid
  18. Ring Construction / Ring Material
  19. Dial Material / Color
  20. Pointer Material / Color
  21. Element Stem Diameter / Length / Material
  22. Mounting
  23. Process connection to Thermowell
  24. Instrument Calibration Standard (if stated in client specification)
  25. Sour Service Specification (NACE requirement)
  26. Zero Reset

THERMOWELL
  1. TAG No.
  2. Thermowell Type (construction type)
  3. Well Material / Flange Material
  4. Gauge Connection
  5. Bore Diameter
  6. Immersion Length
  7. Insertion Length
  8. Flange Size / Rating / Facing
Apart from the above listed, we need to get the process condition i.e process parameters from the "PROCESS" discipline as listed below

  1. Fluid / Fluid State
  2. Design Pressure Min/Max
  3. Operating Pressure Min/Max
  4. Design Temperature Min/Max
  5. Operating Temperature Min/Max
  6. Fluid Viscosity
  7. Fluid Density
  8. Fluid Velocity
With all the above Information one can prepare the Temperature Gauge Datasheet/Specification sheet.
Please note that all the above parameters are accounted as project experience. In addition to the above one need to follow the "Project Specification recommended"

Please write to ogtechengineering@gmail.com for any observations.

Thanks


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