` LN2 Comparator


LN2 Comparator

An easy-to-use device that allows for calibrations that need extremely low temperatures

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Perfect Device for Calibrations at -196 C 

The Liquid Nitrogen (LN2) Comparator is an easy-to-use device that allows for calibrations that need extremely low temperatures. Using the boiling point of liquid nitrogen, this comparator allows you to complete calibrations at -196 C in a semi-automated fashion in combination with Kaye Validators. 
The included thermocouple holder allows you to run calibrations on up to 48 thermocouples at once. Not only does the holder offer you easy management of your thermocouples, but it also can easily hold your Kaye IRTD in place in the center of the block during your study. 
Designed to keep the evaporation rate of the liquid nitrogen as low as possible, the LN2 Comparator gives you the ability to run long-lasting calibrations in stable conditions for several hours. 

• Perfectly designed to support semi-automated thermocouple calibration in combination with Kaye Validators 
• Stainless steel Dewar for safe operation and longevity  
• Thermocouple holder makes for easy management of up to 48 thermocouples 
• IRTD holds securely in the center of the calibration block 
• Easy to use fill port allows for addition of liquid nitrogen as needed 
• Overall design of LN2 Comparator guarantees low evaporation rate and long-lasting stable calibration points for many hours 
• Foam lid included to reduce LN2 evaporation between calibrations 
• All components are delivered in a rugged case with wheels for easy transportation and safe storage 

Specification KG-300
Temperature* About -196C (dependent on atmospheric pressure)
Stability* Typically, better than 5 mK / 20 min.
Thermal Wells 18 Wells: 6.7 mm I.D.
1 Well: with 3.1 mm I.D.
1 Well: with 4.8 mm I.D.
Immersion 315 mm [from top of the TC Fixture to bottom of well]
140 mm [aluminum block]
Evaporation Approximately 0.15 liters per hours with lid secured
Volume 5.5 liters
Outer diameter 168 mm
Height 400 mm
Temperature will change with the atmospheric pressure (dt/dp >>0.085 mK/Pa)
The actual temperature stability depends on atmospheric pressure stability

• Ultra-Low Freezers 
• LN2 Freezers 

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