Surface Temperature Measurement MICROCOIL™

 
Surface Temperature Measurement MICROCOIL™
MICROCOIL miniature thermocouples provide surface temperature measurements with an unparalleled degree of accuracy. This patented technology achieves critical isothermal surface temperature measurement and offers superior design flexibility. Typical sensor-to-sensor repeatability of one to two percent (DT) can be achieved with the MICROCOIL because the areas of the sensor that are vulnerable to normal production variances are not in the thermal gradient. Weld location, insulation thickness and welded tip thickness no longer impact measurement in an isothermal environment. Therefore, the inherent challenges of measuring surface temperatures are no longer a problem with the MICROCOIL. Maximum continuous temperature: 700°C (1292°F)



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Product Features

Miniature size
  • Allows for precision measurement in tight spaces
XACTPAK mineral insulated thermocouple cable
  • Electronically isolated and shielded
700°C (1292°F) maximum continuous temperature
  • Offers exact measurement for demanding applications
Self leveling and loading
  • Provides superior repeatability of measurement for a wide variety of surfaces

Product Specifications

Calibration:
  • Type K
  • 0.020" diameter Alloy 718 thermocouple sheath
  • 0.125" coil diameter
  • 12.5 oz approx. spring force for 0.050" compression
Temperature Rating:
  • Copper tip 350°C (662°F) max
  • Aluminum nitride 700°C (1292°F) max
Junction:
  • Grounded
  • Ungrounded
Sheath Length “S”:
02" to 18"
Hot Leg Length “H”, if 90 ̊ bend:
  • straight sheath, 1.125”, 1.250”, 1.375”, 1.500”, 1.625”, 1.750”, 1.875“, 2.000”, 2.125”, 2.250”, 2.375”, 2.500”, 2.750”, 2.875“, 3.000”
  • Bend radius is 0.25 inch
  • Cold leg length (1.0 inch minimum) = S - H - 0.4 inch
  • If a fitting is ordered, it will be installed hand tightened onto
  • the hot leg
  • If a fitting is ordered, the minimum hot leg length “H” is 2.500 in.
Fitting, Optional:
  • None
  • Compression fitting, adjustable,
  • 1⁄8" NPT, TFE gland
Lead Length Construction, solid conductors:
  • 24 Ga. Fiberglass
  • 26 Ga. FEP with shield and drain not attached
  • 26 Ga. FEP with shield and ground not common to sheath
  • 26 Ga. FEP with shield and ground common to sheath
  • 24 Ga. FEP with stainless steel overbraid
Lead Length “L” :
03" to 99"
Lead Wire Terminations:
  • Standard male plug
  • Standard female jack
  • Standard plug with mating connector
  • Miniature male plug
  • Miniature female jack
  • Miniature plug with mating connector
  • Standard, 1.5 inch split leads
  • 1.5 inch split leads with spade lugs “L”

Applications

  • Environmental chambers
  • Chip cases
  • Heat sinks
  • Packaging
  • Platens