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Introduction

The DTZ-400 Surface Probe Temperature Calibration System is specifically designed for the calibration requirements of various surface sensors. It can precisely adapt to devices of different sizes and types, including L-shaped sensors, thermistors, thin-film sensors, surface resistance thermometers, ribbon sensors, and surface thermocouples. The system only requires a simple temperature setting to initiate heating, providing fast and efficient heating. Combined with multi-stage PID temperature control technology, it ensures precise and stable temperature control. Equipped with communication interfaces, it can directly interact with computers for data exchange.

Features

Wide temperature range and multiple range options: 35 °C ~ 400 °C / 50 °C ~ 500 °C / 50 °C ~ 600 °C.

High accuracy: ±0.5 °C @ 200 °C.

Rapid heating/cooling and fast stabilization: Heating from room temperature to 400 °C takes only 30 min.

Stable temperature control: ±0.3 °C/10 min (@ 300 °C).

Dual-channel measurement function: Equipped with a dedicated independent standard input channel. The units under test (UUT) cover different categories of sensors such as RTDs, thermocouples, transmitters, instruments, and switches.

Built-in high-precision electrical measurement unit: Standard 6½-digit / 7½-digit high-precision measurement modules (grades selectable). Electrical measurement resolution is not lower than 0.0000001.

Programmable heating/cooling control: Supports multi-temperature point programming settings and configurable multi-segment ramp rate temperature control. The system automatically completes heating, cooling, and setpoint switching at the set rate.

Grooved calibration position: Specifically designed for L-shaped right-angle surface temperature sensors, facilitating quick positioning and fixation for more convenient calibration.

Side standard insertion hole: The standard can be inserted directly below the center of the measurement surface, minimizing temperature measurement deviation and improving calibration accuracy.

Intelligent communication: Standard RS232/RS485, WiFi, and LAN Ethernet interfaces. Supports USB flash drive data export, adapting to laboratory information management needs.

Functions

Full-Process Real-Time Monitoring

Real-time display of all-dimensional information including electrical measurement data, temperature field status, operating status, task progress, running time, and stability countdown.

In indication calibration mode, synchronously displays the current execution temperature point and current calibration times.

Real-time calculation and display of calibration results such as tolerance, deviation, electrical measurement value, and temperature value. Out-of-tolerance data is automatically highlighted.

Supports real-time monitoring of the 10-minute temperature fluctuation, maximum, and minimum values of standard and UUT channels, with corresponding real-time curve graphs generated.

Intelligent Temperature Control and Acquisition System

Adaptive intelligent temperature control: Based on PID parameter auto-tuning technology, it automatically adjusts control parameters to ensure temperature field uniformity and stability.

Regulation-level constant temperature judgment: Built-in intelligent constant temperature judgment algorithm, real-time monitoring of temperature field change rate. Data acquisition is automatically triggered when stability meets verification regulation requirements.

Data Management and System Security

Massive data storage and retrieval: Built-in 8GB storage space, capable of storing 100,000+ calibration records. Supports combined retrieval by multiple conditions such as factory serial number, completion date, project ID, instrument type, and calibration date.

Comprehensive backup and recovery mechanism: Supports automatic backup strategies with customizable cycles; can select specified backup nodes to restore full data. Supports single calibration record-level data recovery; after retrieving the target record, it can be restored to the calibration configuration and data node at that time.

Permission management: Supports hierarchical permission management, with permission control over three types of functions: calibration operations, backup and recovery, and advanced configuration, meeting the compliance management requirements of metrology laboratories.

Technical Parameters