DT-5505 Insulation Tester | 4000MΩ Insulation Test | CAT III 1000V | Dual LCD Display | Auto-discharge Protection

DT-5505 Insulation Tester

The DT-5505 is a professional insulation tester designed for electrical installation work. With test voltages of 125V, 250V, 500V, and 1000V, it can measure insulation resistance up to 4000MΩ. Featuring a large dual LCD display with bargraph, CAT III 1000V safety rating, and automatic protection features, it provides reliable testing for electrical installations.

Features:

• Double molded plastic housing for durability

• CAT III 1000V safety rating

• Large dual LCD display with bargraph and backlight

• Test hold & lock function for easy operation

• Easy to carry testing package

• Over range indication

• Low battery indication

• Auto-discharge of capacitive voltage for user protection

• Live circuit detection (prevents test if voltage >30V detected)

• Min/Max recording & Data Hold functions

• 1mA test current for MegOhm range at rated voltage

• 200mA short current for continuity range

• Meets IEC10101 safety standards

Specifications:

Electrical Measurements:

• Voltage AC: 750V max, 1V resolution, ±1.2% reading ±10 digits accuracy

• Voltage DC: 1000V max, 1V resolution, ±0.8% reading ±3 digits accuracy

• Resistance: 40Ω (0.01Ω resolution), 400Ω (0.1Ω resolution), ±1.5% reading ±6 digits accuracy

Insulation Testing:

• Insulation Resistance: 4MΩ, 40MΩ, 400MΩ, 4000MΩ ranges

• Resolution: 1kΩ to 1MΩ (depending on range)

• Accuracy: ±2.0% reading ±6 digits

• Test Voltages: 125V, 250V, 500V, 1000V

• Test Current: 1mA nominal at rated voltage

Continuity Test:

• Active sound when resistance ≤40Ω

• Test current ≤200mA

Safety Features:

• Auto-discharge of capacitive voltage

• Live circuit detection (>30V prevents insulation test)

• CAT III 1000V safety rating

• Meets IEC10101 standards

Environmental Specifications:

• Operating Temperature: 0°C~40°C (<80% relative humidity)

• Storage Temperature: -10°C~60°C (<70% relative humidity)

Display:

• Large dual LCD display

• Analog bargraph

• Backlight for low-light conditions

• Test hold and lock functions

Applications:

• Electrical installation insulation testing

• Preventive maintenance of electrical systems

• Cable and wiring insulation verification

• Motor and transformer insulation testing

• Electrical contractor field work

• Facility maintenance inspections