DT-9056 Digital Earth Loop Tester | GFCI/EPD Testing | 3.00Ω Impedance | CAT III 600V

DT-9056 DIGITAL EARTH LOOP TESTER

Professional Earth Loop Impedance and Circuit Analysis Instrument

The DT-9056 Digital Earth Loop Tester is a comprehensive electrical testing instrument designed for professional earth loop impedance measurement and circuit analysis. With True RMS measurement capability, backlit digital display, and multiple testing functions, this instrument provides accurate assessment of electrical circuit performance and safety device operation.

Key Features:

Advanced Display and Measurement:

• Digital LCD display with backlit for clear visibility

• Display update for voltage less than 2.5 times/second

• Over-range indication on all functions for safety

• ACV True RMS measurement for accurate voltage readings

Comprehensive Testing Functions:

• Earth loop impedance measurement

• GFCI trip time and current testing

• EPD trip current measurement

• Voltage drop percentage calculation

• Line voltage and peak voltage measurement

• Neutral-Ground voltage testing

• Circuit frequency measurement

Technical Specifications:

Voltage Measurements:

• Line voltage: 85.0~250.0 VAC, 0.1V resolution, ±1.0%rdg ±0.2dgtls accuracy

• Peak line voltage: 121.0~354.0 VAC, 0.1V resolution, ±1.0%rdg ±0.2dgtls accuracy

• Voltage loaded: 10.0~250.0 VAC, 0.1V resolution, ±2.5%rdg ±0.2dgtls accuracy

• Neutral-Ground Voltage: 0.0~10.0 VAC, 0.1V resolution, ±2.5%rdg ±0.2dgtls accuracy

Circuit Analysis Functions:

• Frequency: 45.0~65.0 Hz, 0.1Hz resolution, ±1.0%rdg ±0.2dgtls accuracy

• %Voltage drop: 0.1%~99.9%, 0.1% resolution, ±2.5%rdg ±0.2dgtls accuracy

Impedance Measurement:

• Impedance-Hot neutral & Ground: 0.000Ω~3.00Ω (>3Ω indication)

• Resolution: 0.01Ω

• Accuracy: ±2.5%rdg ±0.02dgtls

Safety Device Testing:

• GFCI Trip Time: 1ms to 6.5ms counter, 1ms resolution, ±1.0%rdg ±2ms accuracy

• GFCI Trip Current: 6.0~9.0mA, 0.1mA resolution, ±1.0%rdg ±2mA accuracy

• EPD Trip Current: 30.0~37.0mA, 0.1mA resolution, ±1.0%rdg ±2mA accuracy

Physical Specifications:

• Size: 195mm x 70mm x 48mm (H x W x D)

• Weight: 415g

Safety & Compliance:

• CE Certified

• Safety Standard: EN 61010-1 CAT III 600V

• EMC & LVD Standards:

  • EN 61326

  • EN 61010-1

  • EN 61010-02-032

  • EN 61010-02-033

Professional Applications:

Earth Loop Impedance Testing:

• Measurement of earth fault loop impedance

• Verification of circuit protective device coordination

• Assessment of earth connection effectiveness

• Compliance testing of electrical installations

GFCI/EPD Device Testing:

• Ground fault circuit interrupter performance testing

• Equipment protection device verification

• Trip time and current measurement

• Safety device compliance assessment

Circuit Performance Analysis:

• Voltage drop measurement under load conditions

• Line voltage quality assessment

• Neutral-ground potential difference checking

• Circuit frequency verification

• Peak voltage measurement