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Introduction

The DTZ-OTG Transformer Temperature Controller Smart Calibration System is a specialized system designed for the verification/calibration of transformer oil temperature controllers, transformer winding temperature controllers, temperature switches, bimetal thermometers, and pressure thermometers. Independently developed, the system meets the demands of high-volume calibration scenarios, providing users with an intelligent, convenient, and batch-oriented verification/calibration workflow. It supports simultaneous remote signal acquisition from up to 10 units under test (UUTs), automatically calculating key metrics such as indication error, hysteresis error, repeatability error, and inter-device deviation. It integrates the functionality for thermal simulation verification of 10 channels and contact action detection for 6 channels, enabling precise evaluation of contact operating error and differential gap.

Introduction

● The system supports both Windows and domestic Kylin OS, meeting internationalization  requirements.

● Supports multi-point calibration for switch outputs, displayed values, and thermal analog signals.

● Supports automatic optimization and sequencing of test points when the thermometers under test of the same category have different measuring ranges, enhancing efficiency.

● Supports automatic matching of test items based on relevant specifications and automates the corresponding verification procedure.

● Superimposed Calibration Function: Capable of completing remote signal and contact action signal acquisition within the same heating/cooling cycle. It calibrates data indicators for multiple items including indication error, indication hysteresis, indication repeatability error, inter-device deviation, as well as contact action error and switch differential. These measurements can also be performed independently.

● Diversified calibration Modes: Indication calibration supports both manual and automatic modes. Pre-configured modes include automatic image capture, automatic recognition, and unattended calibration.

● Batch Calibration Function: The system supports simultaneous execution of calibration tasks using multiple wide temperature range Smart temperature baths. It supports the simultaneous calibration of multiple UUTs of the same category but with different ranges, reducing wait times and meeting high-volume calibration demands.

● Efficient Auxiliary Functions: Supports forced acquisition, pre-heating, simulated process rehearsal calibration, and resume-after-power-failure functionality, significantly reducing process waiting times and improving efficiency.

● Full cycle Management Reminders: Utilizes a message center to provide reminders for upcoming UUT and equipment calibration expiry dates, helping users keep track of asset status and avoid compliance issues due to expiration.

● Data Security and Management: Employs persistent data storage in a database, with records sheet stored separately to reduce load. Manages UUTs, standard devices, certificate templates, and regulations throughout the entire process. Supports the generation, printing, preview, and retrieval of certificates/original records, facilitating convenient data traceability.

● Professional Integrated Test Platform: Integrates the temperature controller under test, electrical measurement instruments, the test platform, and wiring harnesses to enable rapid and accurate testing, thereby improving efficiency.