Description
Product Overview
The Vanlison DY5500 is a professional‑grade ground resistance meter designed for accurate electrical testing in industrial environments. It measures ground resistance from 0.01Ω to 2000Ω with 0.01Ω resolution, insulation resistance up to 2000MΩ, and AC/DC voltage up to 1000V. Housed in a rugged ABS case weighing 4.9 lb, the device features a backlit LCD, auto‑illumination, and an auto‑zero function for consistent readings. Powered by eight AA batteries (included), it offers up to 30 hours of continuous operation.
Usage
Ideal for electricians, engineers, and field technicians, the DY5500 excels in power plant grounding checks, construction site safety audits, and routine maintenance of grounding systems. Its non‑intrusive testing allows measurements without disconnecting existing grounding, saving time and reducing downtime. 
Why Choose Us
Vanlison combines decades of expertise in electrical instrumentation with rigorous quality control. Each meter undergoes calibrated testing to meet IEC standards, ensuring ±2% accuracy across the range. The included accessories—test leads, auxiliary earth clamps, and phase wires—provide a complete solution out of the box, while the shock‑absorbing carry case protects the instrument during transport.
Key Features
- High‑resolution ground resistance measurement 0.01Ω‑2000Ω
- Insulation resistance testing up to 2000MΩ for safety verification
- AC/DC voltage measurement up to 1000V with auto‑range function
- Phase‑sequence detection for three‑phase systems (100‑450V)
- Backlit LCD, data‑hold, low‑battery indicator, and auto‑power‑off
FAQ
What batteries does the DY5500 use?
The meter requires eight AA alkaline batteries, which are included and provide long‑lasting power with low self‑discharge.
Can I test grounding without disconnecting the system?
Yes, the DY5500 features a non‑intrusive testing method that allows accurate measurements while the grounding system remains in service.
Is the device suitable for outdoor use?
Its rugged ABS housing and shock‑absorbing case make it resistant to dust and moisture, suitable for field work in various weather conditions.
How accurate is the voltage measurement?
Voltage readings are accurate within ±2% of the displayed value, with auto‑range for quick setup across 250V, 500V, and 1000V ranges.
What warranty does Vanlison provide?
Vanlison offers a one‑year limited warranty covering manufacturing defects and includes technical support for calibration and usage questions.
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