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PR320A Thermocouple Calibration Furnace

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PR320A Thermocouple Calibration Furnace is a horizontal, open-ended tube furnace with a temperature range of 300 °C to 1200 °C. the temperature setting will be ultimately controlled type probe "N" by Czaki from Raszyn, the probe measures the temperature inside the furnace and working in the loop temperature controller, diameter of the heating tube is 40 mm. length 600 mm. The PR320 is the most accurate, reliable, and flexible furnace in its class, meeting the demanding requirements of high-temperature thermocouple calibration. 

PR320A specifications:
Furnace size:  φ40mm×600mm
Temperature range: (300-1300)℃
Temperature field center: Deviate from the geometric center not more than 10mm
Temperature field width:The temperature difference in 80mm ≤1℃
Temperature field gradient: No more than 0.4℃/cm in the 20cm range of temperature field center
Shape size :  700mm×370mm×450mm
Application:  S,R standard thermocouple,working S,R noble and base-metal thermocouples calibration
Weight: 29kg
Regulation: JJF1184-2007 Test Specification for Thermocouple Calibration Furnace Temperature Field

PR320A thermocouple calibration furnace features:
1. Wide temperature range spanning most high-temperature applications
2. Flexible configuration for calibrating a wide range of thermocouple types
3. Best-in-class temperature stability and uniformity for calibration accuracy
4. Automated setpoint control for improved lab productivity
5. Non-metallic block helps minimize thermocouple contamination
6. Deep immersion depth to support most thermocouple calibrations
7. Dynamic heater control and cutouts for reliability and safety

PR320A thermocouple calibration furnace packing list
1. PR320A main machine
2. Control sofeware


Furnace size


Temperature range


Temperature field center

Deviate from the geometric center not more than 10mm

Temperature field width

The temperature difference in 80mm ≤1℃

Temperature field gradient

No more than 0.4℃/cm in the 20cm range of temperature field center

Shape size



S,R standard thermocouple,working S,R  noble and base-metal thermocouples calibration




JJF1184-2007 Test Specification for Thermocouple Calibration Furnace Temperature Field

  • Model: PR320A
  • Shipping Weight: 77lbs
  • 185 Units in Stock
  • Manufactured by: Panran


Jack N.
5 of 5 Stars
price is cheap, but accuracy is really good! Cool



Panran Measurement and Control Science and Technology Co.Ltd(Changsha Panran Commerce and Trade Co., Ltd is the foreign trade office) is the member of Chinese national temperature measurement technology committee. Panran is the most professional manufacturer in temperature and pressure measurement tools and instruments' calibration field in China. We own temperature and pressure calibration instruments production line, and research developing laboratories, and experienced soft-wares writers, besides, we also authorized to international manufacturing.



We are participated in many national measurement technical specification drafting, such as "JJF 1098-2003 Calibration Specification for Auto-Measure System of Thermocouples and Resistance Thermometers", "JJF ll71-2007 Calibration Specification for Temperature Itinerant Detecting Instrument" and "JJF ll84-2007 Testing Specification of Temperature Uniformity in Thermocouple Calibration Furnaces" and so on. We have established some big temperature and pressure research laboratories to improve the temperature and pressure accurancy in many cities of China. Panran passed ISO9001:2015 Quality Management Certificate. We are High-Tech Enterprice certificated and get the sponsored funds from Chinese official office. Some products passed CE and SGS certificates and enter the international market. We win high reputation in China and many other countries, such as Poland, Brazil, Iran, Egypt, Vietnam, Russia,Sri Lanka, Colombia, Malaysia, Indonesia, Saudi Arabia, Pakistan, Philippines



Panran main products are temperature calibration instruments, presure calibration instruments and automatic calibration system sofewares. Our "ZRJ intelligent thermotechnic instrument calibration system", "KRJ wide temperature field thermocouple calibration furnace" and "PR600 series heat pipe thermostatic bath" etc. are independently developed by us, and they are keeping first lever technical position in China. PANRAN products are widely used in military-industrial complex system ( including aviation, aerospace, weapons, nuclear energy, ship ), measurement and calibration institutions, rolling stock, machinery, metallurgy, electric power, petroleum, chemical industry, instruments and meters industry etc. 



Products' quality is the basis of surviving, and satisfying customers' requirements is our mission. Panran is young but very energetic, and our all staff warmly welcome you and your company to come to us for an co-operation in near future. Panran making is more accuracy! Thanks very much!