The verification furnace / calibration furnace is an important part of the medium and high
temperature traceability system. In general, the traditional verification furnace / calibration
furnace is a horizontal electric furnace with simple structure. The temperature uniformity of
the effective working area of the furnace can not be well controlled, and the temperature
uniformity of the furnace is prone to deviation after the furnace has been used for a long time.
Even if the temperature uniformity of the furnace is improved to a certain extent by adding
metal isothermal block, its overall technical performance is still not ideal, which is the main
source of uncertainty in the process of thermocouple verification and calibration. Therefore,
the traditional verification furnace / calibration furnace cannot meet the requirements of
high-precision temperature traceability in terms of structure. The PR330 series multi-zone
temperature calibration furnace adopts a subversive design scheme from the internal structure
to the control method, and has made a qualitative leap in key technical parameters.
PR330 series Multi-zone Temperature Calibration Furnaces adopt innovative technologies
such as multi-zone control, DC heating, automatic load balancing, automatic heat dissipation,
and embedded temperature control sensor to extend its working temperature to 100 °
C~1300°C. and it has excellent temperature field uniformity and temperature fluctuation
covering the full temperature range, which greatly reduces the uncertainty in the process of
temperature traceability. In addition, the PR330 series multi-zone temperature calibration
furnace has rich human-computer interaction functions, communication functions, and many
user-friendly designs including front and rear dual display screens and hidden scales.
