Release Date: February 24, 2025
According to safety regulation requirements, the following supplementary statement is made regarding voltage measurement operations in the tutorials:
1. Safety Basis for Voltage Measurement
Equipment Voltage Range: 3D printers typically operate at 100-240V (complying with international standards), with internal circuits converting input voltage to a safe operating range through voltage converters.
Safety Voltage Standard: Based on human body safety voltage limits (not exceeding 36V) and electrical safety regulations (CE_LVD), voltage measurement steps in the tutorials only target low-voltage circuit parts (DC, generally 5~24V) during normal equipment operation, complying with safety voltage range requirements.
2. Safety Measures for Measurement Operations
Short Circuit Protection: If a short circuit occurs due to improper operation, the equipment's short circuit protection will be triggered.
Tools and Protection: Insulation-standard measurement tools (such as multimeters) must be used, and operation in humid environments should be avoided.
Professional Guidance: Non-professionals should contact technical support and are prohibited from disassembling equipment or touching high-voltage components (machine power supply, power switch area (AC)) without authorization.
3. Compliance Verification of Safety Voltage
Inspection Items: Equipment has undergone voltage withstand tests, insulation resistance tests, and leakage current tests before leaving the factory, and has completed CE_LVD certification to ensure internal circuit voltages comply with international safety standards.
User Responsibility: If self-testing voltage is necessary, tutorial steps must be strictly followed. The operator bears direct responsibility for accidents caused by non-compliant operations.
Note: This supplementary statement aims to clarify the safety compliance of voltage measurements in the tutorials. Operators still need to follow standard procedures to avoid secondary risks caused by operational errors.