Fluke 5502A — ±1020 V / 20.5 A Multi-Product Calibrator, 50 ppm DC Accuracy Multi Function Calibrator

Fluke 5502A replaces the 5500A with wider ranges and robust protection for mobile or bench calibration. It sources precision DC/AC volts to 1020 V, current to 20.5 A, resistance to 1100 MΩ, and capacitance to 110 mF, with dual-output power, phase control, harmonics, and TC/RTD simulation. One-year DCV performance reaches 50 ppm; ACV/ACI deliver 0.05%-class uncertainties in the audio band. Standard GPIB/RS-232 and 10 MHz reference ease system integration; options enable oscilloscope calibration to 300/600 MHz. Pairing with the 52120A extends current output for clamp and high-current workloads. Units are commonly supplied used with fresh calibration on request.

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TESTRO Advantages

1. Laboratory-Verified Performance – Every unit ships with an ISO/IEC 17025 calibration certificate (TESTRO Certified) tied to its serial number.

2. Full Internal Transparency – High-resolution teardown photos plus a live video test (gain-linearity, noise-floor, spurious response); recordings are stored for the product’s lifetime.

3. Warranty & Technical Support – One-year warranty and weekday remote assistance from the in-house engineering team for both software and hardware issues.

4. Secure, Rapid Shipping – Aviation-grade flight case with triple-layer anti-vibration foam and shock/tilt indicators; priority DHL delivery in 3–5 days to major destinations.

5. Flexible Payment Options – Accepts T/T, wire transfer, credit card.

6. On-Site Inspection Welcome – Customers may visit the Shenzhen warehouse and refurbishment line to view calibration benches, burn-in racks, and inventory.

Founded in 2017 and headquartered in Shenzhen, TESTRO Electronics LLC focuses on the secondary sale and flexible rental of high-end electronic test instruments. The team counts 30 employees and operates a 1,500 m² warehouse and inspection center in Qianhai, Shenzhen.

Industry Background & Resource Sourcing

Over the past two decades, rapid advances in China’s radio-frequency sector have shortened production-line refresh cycles to roughly 3–5 years. Leveraging long-term partnerships with equipment OEMs, research institutes, and calibration labs, TESTRO acquires traceable, well-maintained decommissioned or replacement units. Every instrument undergoes a five-step technical check and third-party calibration before entering stock, ensuring reliable performance data.

Core Services & Delivery Process