PR325A Thermocouple Calibration Furnace has excellent performance and rich functions. It adopts a new structural design, has a longer service life, and solves the problems of furnace positioning and high temperature electric leakage through the built-in metal positioner.
PR325 Series Thermocouple Calibration Furnaces have excellent performance and rich functions. It adopts a new structural design, has a longer service life, and solves the problems of furnace positioning and high temperature electric leakage through the built-in metal positioner.
The control part uses part of the technology of the PR330 Multi-zone Temperature Calibration Furnace, which has the ability to adjust the axial temperature uniformity slightly. Compared with the traditional thermocouple calibration furnace, better verification or calibration results can be obtained without an isothermal block.
I. Features
█ The Axial Temperature Uniformity over the Full Range is Better Than 1°C/6cm
The controller can automatically adjust the balance power at both ends, and can obtain 1°C/6cm axial temperature uniformity in the temperature range of 300°C~1200°C, which can effectively reduce the uncertainty of the verification or calibration process.
█ Integrated High-accuracy Temperature Controller and Reference Junction Compensator
Utilizing the PR2601 temperature controller with a Class 0.01 measurement accuracy, and when used in conjunction with a dedicated reference junction compensator and a type N, type S temperature control thermocouple, the accuracy is better than 0.6°C ± 0.1%RD.
█ Built-in Positioner for Easy Sensor Positioning
The bottom of the built-in metal positioner is 32cm away from the test end of the furnace opening, and the sensor positioning can be completed by simply inserting the sensor into the bottom of the positioner.
█ Longer Service Life
Under the same operating conditions, by increasing the load capacity of the internal heating wire, the service life can be several times longer than that of traditional calibration furnaces.
█ Rich Software and Hardware Functions
Equipped with a front-mounted color touchscreen, it enables the display and set general measurement and control parameters, as well as operations such as scheduled power on/off, temperature stability settings, and WiFi settings.
II. Other Functions
Other Functions | |
█ Temperature control sensor multi-temperature point correction █ Adaptive temperature control parameters █ Real-time temperature, power curve display █ Built-in reference junction compensation | █ Custom temperature fluctuation calculation █ Custom alarm temperature upper and lower limits █ WIFI expandable █ Optional units °C, °F, K |
III. Technical Parameters
█ Model Selection and Technical Parameters
Model | PR325A | PR325B | PR325C | PR325D |
Application | Working TC calibration | Type S, R working TC verification/calibration | Base metal TC calibration | |
Temperature Control TC Type | Type N(Optional type S) | Type S | Type N | |
Temperature Range | 300℃～1200℃ | |||
Furnace Cavity Dimension | Φ40 mm×600mm | |||
Standard Configuration | - | Coaxial Cleaning Ceramic Tube (Inner Diameter approx. φ20mm) | Armored TC Calibration Isothermal Block (opening φ8mm×7, length 100mm) | Base Metal TC Calibration Isothermal Block (ID φ28mm, length 150mm) |
Temperature Field Parameter | 400℃, 1000℃: within the axial 60mm of the effective working area, the absolute value of the temperature difference between any two points is ≤ 1.0℃; within the axial 30mm, the absolute value of the temperature difference between any two points is ≤ 0.5℃. | 420℃, 1000℃, 1085℃: The highest temperature point in the furnace deviates from the geometric center of the furnace by ≤ 20mm, and there is a uniform temperature field with a temperature change gradient of ≤0.4℃/10mm within ±20mm of the highest temperature point. | 400℃, 1000℃: The temperature difference within 30mm axial direction from the bottom of the isothermal block hole is ≤ 0.5℃; the absolute value of the temperature difference between any holes in the same section at the bottom of the hole is ≤ 0.25℃. | 400℃, 1000℃: Within the axial 30mm of the effective working area, the absolute value of the temperature difference between any two points is ≤ 0.5℃; within the radial radius of not less than 14mm, the absolute value of the temperature difference between any two points on the same cross section is ≤ 0.25℃. |
Temperature Stability | ≤0.1℃/min, ≤0.3℃/10min | |||
Specification | - | JJG 141-2013 | JJF 1262-2010 | JJF 1637-2017 |
█ General Technical Parameters
Item | Parameters |
Furnace Cavity Dimension | φ40mm×600mm |
Overall Dimensions | 705×385×490mm (L×W×H) |
Display Screen | 5.0-inch industrial touch screen with a resolution of 800×480 pixels |
Communication Method | RS232 (Standard), WiFi(Optional) |
Weight | 46kg |
Rated Power | 3kW |
Power Supply | 220VAC±10% |
Working Environment | -5~35℃, 0~80%RH, Non-condensing |
Storage Environment | -20~70℃, 0~80%RH, Non-condensing |
Changsha Panran Technology Co., Ltd.