High-Voltage Insulation Tester

I. Product Overview

This 5kV Insulation Resistance Tester is designed for commissioning and maintaining high-voltage electrical equipment, offering comprehensive diagnostic capabilities. With rugged construction and a dual-layer casing, it ensures durability and safety in challenging environments. It supports a wide range of test functions and features an intuitive display for easy operation, making it ideal for high-voltage insulation testing.

II. Key Features

1. Safety & Durability

• Safety Rating: CAT IV 600 V (up to 3000 m altitude) across all terminals.
• Dual-Case Design: Features a rugged outer shell and a fire-retardant inner case, providing robust protection.
• Ingress Protection: IP65 protection when closed and IP40 when open for added durability in harsh conditions.

2. Test Functionality

• Comprehensive Test Modes: Includes IR (Insulation Resistance), Timed IR, Polarization Index (PI), Dielectric Absorption Ratio (DAR), and Dielectric Discharge (DD).
• “PI Predictor”: Speeds up Polarization Index testing for more efficient measurements.

3. Display & User Interface

• Display Type: Combines an analog pointer (100 kΩ to 10 TΩ) and digital readout (10 kΩ up to 10 TΩ).
• Backlit LCD: Large, easy-to-read screen displaying key parameters such as resistance, voltage, leakage current, capacitance, battery status, and test time.

4. Voltage & Resistance Capabilities

• Pre-set Test Voltages: Includes 250 V, 500 V, 1 kV, 2.5 kV, and 5 kV.
• User-Defined Voltage: Adjustable between 40 V–1 kV (in 10 V steps) and 1 kV–5 kV (in 25 V steps).
• Maximum Resistance: Can measure up to 10 TΩ at 5 kV.

III. Measurement Accuracy & Capacity

• Accuracy:
  • ±5% for 1 MΩ to 1 TΩ.
  • ±20% up to 10 TΩ.
• Short Circuit/Charge Current: Approximately 3 mA.
• Noise Immunity: Rejects interference up to 3 mA for reliable measurements.
• Guard Terminal: Minimizes leakage errors, suppressing parallel leakage down to 250 kΩ with less than 1% error at 100 MΩ load.

IV. Additional Measurements

• Capacitance Measurement: 10 nF to 25 µF (for voltages above 500 V), with accuracy: ±10% ±5 nF.
• Leakage Current: Measures from 0.01 nA to 6 mA, with accuracy: ±5% ±0.2 nA.
• Voltmeter: Measures from 30 V to 660 V (AC/DC), with accuracy: ±3% ±3 V.

V. Battery & Power

• Rechargeable Li-ion Battery: 11.1 V, ~5.2 Ah (IEC 62133 compliant).
• Battery Life:
  • Approximately 6 hours of continuous testing at 5 kV with a 100 MΩ load.
  • 30-minute quick charge provides roughly 1 hour of runtime.
  • Fully charges in about 2 hours (normal charge) or 2.5 hours (deep discharge).
• AC Mains Operation: Device can operate directly from AC mains if the battery is depleted.

VI. Environmental & Physical

• Operating Temperature: –20 °C to +50 °C.
• Storage Temperature: –25 °C to +65 °C.
• Maximum Altitude: Up to 3,000 m.
• Dimensions: Approximately 315 × 285 × 181 mm.
• Weight: 4.5 kg.
• Timer Capability: Adjustable from 15 s to 99 min 59 s.

VII. Interface & Logging

• Real-time Output: Provides 1 Hz readings for voltage, current, and resistance.
• Logging Capability: Certain models may include memory logging up to 5.5 hours at 5 s intervals.

VIII. Accessories

• Lead Set: 3 m medium-insulated leads with clips.
• Power Lead: For charging and direct AC operation.
• Calibration Certificate: Ensures device accuracy and functionality.
• User Guide: Printed manual or CD for operational guidance.
• Additional Software (optional): Includes Power DB Lite software and USB cable for data logging and analysis.

IX. Technical Summary

Test Voltage： 250 V, 500 V, 1 kV, 2.5 kV, 5 kV (variable)

Max Resistance： 10 TΩ (at 5 kV)

Test Modes： IR, Timed IR, PI, DAR, DD

Short Circuit Current： ~3 mA

Battery Life： ~6 hours at 5 kV (100 MΩ load)

Safety Rating： CAT IV 600 V (to 3000 m altitude)

Display： Analog + Digital, backlit LCD

Casing/Protection： Dual-case; IP65 (closed), rugged design

Weight / Dimensions： 4.5 kg / 315 × 285 × 181 mm

Accessories： Leads, power cord, calibration cert., manual

X. Additional Notes

Operation & Service Manual: The full operational and service manual should be included with the device for guidance on setup, usage, maintenance, and troubleshooting.