Portable insulation resistance meter UHV-823

The UHV-823 is a portable insulation resistance tester designed for accurate insulation testing in power, telecommunications, industrial and educational environments.

Product overview

• High-voltage measurement system with multiple test modes: insulation resistance, dielectric discharge, external-voltage test, stepping-voltage test and automatic discharge.
• 5.6" color LCD with bilingual interface (Chinese/English) and intuitive operation.
• Micro-current measurement capability and three-terminal (guard) measurement to eliminate leakage current.

Key features

• Measurement resolution: insulation resistance down to 0.01 MΩ; capacitance resolution 0.001 μF.
• Automatic calculation of polarization index (PI) and absorption ratio (DAR); capacitance test and sample capacitance measurement.
• Automatic discharge circuitry, filter function, LED flash and audible alarm during measurement.
• Data storage for up to 1000 records (test data, ambient temperature, date/time); USB export and Android app via Bluetooth for on-site photo/GPS/data upload and report generation.
• Rechargeable lithium battery DC 14.8 V 5200 mAh; portable, shock/dust/moisture resistant construction.

Applications

• Telecommunications infrastructure
• Power systems and substations
• Meteorological equipment testing
• Data center electrical maintenance
• Oil-field operations and field testing
• Industrial electrical maintenance (transformers, motors, cables)

Measurements & functions

• Three-terminal measurement: L (high-voltage output), G (guard/shield) and E (earth/ground).
• Insulation resistance test, sample capacitance test, PI and DAR automatic calculation, dielectric discharge test, external-voltage and stepping-voltage tests.
• AC/DC voltage measurement: AC 1 V–1000 V (50/60 Hz), DC 1 V–1000 V.
• Stepping voltage and digital voltage boost technology; automatic discharge and filter for stable readings.

Technical specifications (selected)

• Test voltages: 250 V, 500 V, 1000 V, 2500 V, 5000 V, 10 kV.
• Insulation resistance ranges & accuracy (examples): 250 V DC: 0.01 MΩ–10.0 GΩ (±3%rdg±5dgt); up to 10 kV DC: 0.01 MΩ–400 GΩ (accuracy varies by range).
• Capacitance test: 0.200 μF–100.0 μF; resolution 0.001 μF; accuracy ±20% ±0.005 μF.
• Short-circuit current ≥ 5 mA. Timing up to 99 min 99 s (user-settable).
• Data storage: up to 1000 records; USB export (1.5 m cable included); Android APP via Bluetooth for uploads and reports.
• Operating temperature: -10 °C–40 °C (non-condensing < 80% RH). Storage: -20 °C–60 °C.
• Dimensions & weight: 320 mm × 240 mm × 145 mm; approx. 3.5 kg (including battery).
• Standards & safety: EMC IEC61326; Safety rating CAT IV 600 V; dielectric withstand AC 5 kV 50 Hz 1 min between covers.