The DTL-H series High Temperature Thermocouple Calibration Furnace is a new-generation high-temperature calibration device independently developed by our company. Adopting an integrated furnace-and-control-cabinet design, it provides a high-quality, highly stable temperature environment within the range of 800°C to 1700°C. It is suitable for the verification and calibration of various thermocouples, including Type B and tungsten-rhenium thermocouples. Equipped with an intelligent AI controller, the device enables rapid heating, precise temperature stabilization, and intelligent optimization of temperature gradients.

Product Features

Multi-Zone Independent Temperature Control
Utilizes multi-zone independent temperature control technology, enabling flexible power adjustment for each temperature zone via software, precisely controlling axial temperature distribution, effectively eliminating the impact of thermal load on the temperature field, and ensuring accurate and reliable calibration data within the 800°C–1700°C temperature range.

Professional Customization Service
Customizable furnace bore specifications: Φ55mm, Φ100mm; furnace dimensions and temperature range can be customized on demand to flexibly adapt to various test conditions.

Intelligent Constant Temperature Regulation System
Equipped with high-precision multi-zone constant temperature circuitry and dedicated optimization algorithms, enabling rapid heating to quickly reach calibration temperature with stable control, providing reliable assurance for high-precision calibration.

High-Precision Intelligent Control System

Intelligent AI controller, equipped with high-precision multi-zone constant temperature regulation circuitry and intelligent algorithms, achieving rapid heating and precise constant temperature control.

User-friendly interface with intelligent touchscreen and multi-function window display for intuitive and convenient operation.

Supports Chinese/English bilingual interface switching.

Display resolution of 0.01°C across the full range, with three selectable levels: 0.01°C, 0.1°C, and 1°C.

Supports free switching between Celsius (°C), Fahrenheit (°F), and Kelvin (K) units.

Advanced Functions and Precision Management

Precision calibration with multi-point automatic temperature calibration and correction functions to ensure accuracy of temperature readings.
Supports uniform heating at a set rate, ensuring stability and controllability of the temperature change process.

Real-time display of temperature curves and historical data, with customizable curve data collection intervals.

PID control parameters support auto-tuning function and can be manually fine-tuned to adapt to different working conditions.

Real-time display of operating data with stability status indicators.

Technical Parameters

Model	DTL-H1700G	DTL-HAI 1700G	DTL-H3PAI 1700G
Temp. Range (℃)	800 to 1700	800 to 1700	800 to 1700
Furnace bore dimensions (mm)	B-Type Standard Thermocouple Furnace: the hottest point in the furnace must not deviate more than 20 mm from the furnace center. Within ±20 mm of the hottest point, the temperature gradient must be ≤ 0.5 ℃/10 mm. B-Type Working Thermocouple Furnace: the hottest point in the furnace must not deviate more than 20 mm from the geometric center. Within ±20 mm of the hottest point, the temperature field must be uniform with a gradient ≤ 0.5 ℃/ 10 mm.
Rated Power (kW)	3.0	3.0	3.0
Max Operating Current (A)	70	70	70
Rated Voltage (V/ Hz)	AC 220/50	AC 220/50	AC 220/50

Application Value

The multi-zone high temperature thermocouple calibration furnace provides a reliable, high-quality temperature source for the verification and calibration of high-precision thermocouples, with a wide temperature range, excellent uniformity, and intelligent, easy operation. Its integrated design and multi-communication functions allow it to serve as a high-performance standalone device, and also as the ideal core equipment for building modern, automated thermal measurement laboratories.

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