Thermocouples

FEATURES:

• Reliable operation up to 1100°C

• High sensitivity to temperature change

• Corrosion resistant housing

• Custom mechanical configurations

• Low cost

• Easy to install

• Lifetime Warranty

• No limit to useful life

DESCRIPTION: Hewitt Industries Type "K" Thermocouples are housed in Inconel or Incoloy tubular housings, with isolated or grounded tip (hot junction). Thermocouple assemblies are offered in straight or right-angle bend configurations, with 1/8 NPT, 1/4 NPT or other mounting. Flexible, stainless steel braided leads can be provided in varying lengths, with popular terminations (i.e., ring lugs, type "K" connector). Extension thermocouple-wire lead sets are also available.  Types "J" and "E" are also available.

FEATURES:
• Fast response - grounded tip
• Stainless steel housing
• Flexible stainless steel braided sheath
• 1/8" and 1/4" tip diameters
• Rugged and reliable

PERFORMANCE DATA:
Continuous Operating Temperature Range: -55 to 1100°C / -67 to 2000 °F
Maximum Operating Temperature Range: -55 to 1200 °C / -67 to 2200 °F
Output: (75 to 2000 °F, 75 °F cold junction) 0 to 44mV
Tolerance: ± 1%
Time Constant: 3 seconds, 900 to 1200 °F / 8 seconds, 70 to 1300 °F
Source Resistance: 0.6 ohms
Lead Resistance: 4 ohms typical

APPLICATIONS:
• Automotive - exhaust temperature sensing
• Industrial - process control, high-temperature sensing

Thermocouple Data Sheets (PDF)

Type "K" Thermocouple Output

MATERIALS:
"J" = IRON (+), CONSTANTAN (-)
"E" = CHROMEL (+), CONSTANTAN (-)
"K" = CHROMEL (+), ALUMEL (-)

NOTE: Reference junction at 75 °F

Type "K" Thermocouple Linearity

Grounded Thermocouple Response Time

Copyright © 2008 Hewitt Industries of L.A.    All Rights Reserved.