PR320 Thermocouple Calibration Furnace
The PR320 series thermocouple calibration furnaces feature built-in different temperature field accessories, which can meet the verification/calibration needs of thermocouples with different types. This product complies with the requirements of JJF 1184-2024 “Test Specification for Temperature Uniformity in Thermocouple Calibration Furnaces”, and features a wide temperature field range, fast heating and cooling speeds, and excellent long-term stability.
Technical Parameters
General Technical Parameters
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Furnace cavity dimension |
Φ40mm×600mm |
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Dimensions |
680mm×520mm×380mm |
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Weight |
33kg |
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Rated power |
2.5kw |
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Working environment |
(-5～35)℃, (0～80)%RH, non-condensing |
Temperature Field Specification
|
Model |
PR320AP |
PR320BP |
PR320CP |
PR320HP |
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Applicable Scope |
S/R working thermocouple verification/calibration |
Sheathed thermocouple calibration |
Base metal thermocouple calibration |
Thermocouple calibration |
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Temperature Range(℃) |
300℃～1200℃ |
300℃～1300℃ |
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Control Thermocouple Type |
S |
N |
N |
Optional S/N |
|
Matching Isothermal Block |
Coaxial Cleaning Ceramic Tube (Inner Diameter approx. φ20mm) |
Optional PR1142A/B Isothermal Block |
Optional PR1145A/B Isothermal Block |
Optional Coaxial Cleaning Ceramic Tube / PR1142A / PR1145A |
|
Regulations/ Specifications |
JJG141-2013 |
JJF1262-2010 |
JJF1637-2017 |
Customized products, one type of temperature field accessory can be optionally selected as needed to meet the requirements of corresponding regulations and specifications. |
|
Test Temperature Point |
420℃, 1000℃, 1085℃ |
400℃, 1000℃ |
400℃, 1000℃ |
|
|
Temperature Field Specification |
The maximum temperature point inside the furnace deviates from the geometric center of the furnace by no more than 20mm, and within ±20mm of the maximum temperature point, there is a uniform temperature field with a temperature gradient ≤ 0.4 ℃/10mm. |
Within 30mm axially from the bottom of the hole, the temperature difference shall not exceed 0.5℃; the absolute value of the temperature difference between any holes in the same cross-section at the bottom of the hole shall ≤ 0.25℃. |
Within the axial 30mm of the effective working area, the absolute value of the temperature difference between any two points shall ≤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 shall ≤0.25℃. |
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Isothermal Block Basic Parameters
|
Model |
PR1142A |
PR1142B |
PR1145A |
PR1145B |
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Material |
Nickel-based alloy |
High-temperature alloy |
Nickel-based alloy |
High-temperature alloy |
|
Temperature resistance |
1300℃ |
1100℃ |
1300℃ |
1100℃ |
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Length |
115mm |
154mm |
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|
Insertion depth |
90mm |
135mm |
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|
Opening |
φ8mm×7 pcs |
φ28mm |
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