Digital microhmmeter HZ2363

bench-topwith integrated temperature compensationlow-resistance

Description
HZ2363 three-phase contact resistance tester by Huazheng Factory is designed with advanced switching power supply technology and precision electronics to measure contact resistance of high-/low-voltage breakers, cables and welded joints according to GB736 DC recommendations. It provides standardized-current measurements, timestamped records and multiple communication interfaces for laboratory and field commissioning tasks.

Key features

• 7" 800×480 color touch screen with intuitive UI and built-in high-speed thermal printer.
• Wide-range DC current output; configurable 1–3 ranges; typical selectable currents 100/200/300/400/500/600 A; customizable up to 5000 A; automatic averaging.
• Digital display of resistance, voltage, current and temperature-compensated resistance values.
• Configurable pass/limit alarms and automatic test-status generation.
• Programmable test time 0–9999 s; supports long-duration tests with internal forced-air cooling and automatic protection.
• High-precision measurement using precision amplifiers and 4-channel A/D converter with auto gain switching by 32-bit ARM MCU.
• Large-capacity internal record storage with power-loss protection; removable USB for data export; Modbus-RTU (RS232/optional RS485), Bluetooth and Android app support.
• Optional cable-control mode and wireless remote for start/stop and status display; quick-lock high-current cable connector.

Technical specifications

• Model: HZ2363
• Selectable test currents: 100 A, 200 A, 300 A, 400 A, 500 A, 600 A (custom 10–5000 A)
• Test range/display: 0 ~ 19999 (units per instrument)
• Accuracy: 0.5% rdg ± 10 dgt
• Resolution: 0.01 (units per instrument)
• Power supply: AC 220 V ±10%, 50 Hz ±2%
• Dimensions (examples): L ≈ 450 mm × W ≈ 250 mm × H ≈ 220–280 mm
• Weight (examples): ≈ 9.9–12.9 kg (depending on configuration)
• Operating temperature: 25 °C – 50 °C; Relative humidity: ≤ 90% RH
• Interfaces: USB, RS232 (convertible to RS485), Modbus-RTU, Bluetooth; Android app

Operation & safety notes

• Installation and operation must be performed by qualified personnel; verify correct connections and earth before applying test current.
• Isolate test object and keep personnel away from conductive parts during high-current tests; follow local safety procedures.
• Do not disassemble or modify the instrument; maintenance should be done by authorized service.

Packaging & storage

• Delivered with high-current test leads, power cable, thermal paper, earth lead and fuses (contents vary by version).
• Store in a dry, ventilated, non-corrosive environment; transport in wooden case with damping; avoid stacking without protection.