CEM DT-5503 Analog Insulation Tester

The CEM DT-5503 Analog Insulation Tester is a professional instrument designed for fast and reliable insulation testing in electrical and industrial applications where safety is critical. It offers three selectable insulation test voltages—250V, 500V, and 1000V—providing a wide measurement range for various testing needs. The device also features a Live Circuit Warning function to enhance user safety, along with true AC voltage measurement that allows users to easily check the condition of electrical circuits before testing. Built in accordance with IEC10101 and CAT III 1000V safety standards, the DT-5503 ensures dependable and secure operation for both field work and laboratory testing environments.

Features

• Three-Level Insulation Test Voltage: Selectable 250V, 500V, and 1000V DC test voltages for insulation resistance testing in various electrical systems.
• Live Circuit Warning: Provides visual and audible alerts if the tested circuit is energized, improving user safety.
• AC Voltage Detection: Displays real AC voltage to confirm whether the circuit is live before performing insulation tests.
• Wide Insulation Measurement Range: Measures insulation resistance up to 400 MΩ with reliable accuracy for cables, motors, and transformers.
• Continuity and Resistance Testing: Includes 3 Ω continuity range and 500 Ω resistance range for checking wiring and circuit connections.
• Audible Continuity Alert: Built-in sound indication helps quickly identify continuity during testing.
• High Accuracy Analog Display: Large analog scale enables quick and easy reading of measurement values.
• Backlit Display: Bright illumination ensures clear visibility even in low-light environments.
• Durable and Portable Design: Robust housing suitable for field and industrial use with an ergonomic handheld structure.
• Industrial Safety Standards: Designed according to IEC10101 and CAT III 1000V standards for safe operation in high-voltage environments.

Technical Specifications