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The KD-920S is a next-generation portable coating thickness gauge engineered for accuracy, durability, and ease of use. Combining magnetic (for Fe-based substrates) and eddy current (for non-Fe metals like Al, Cu) measurement methods, it automatically adapts to the material being tested. With advanced features such as real-time temperature compensation, statistical analysis, data storage, and customizable alarm thresholds, the KD-920S delivers lab-grade performance in a pocket-sized format—ideal for engineers, inspectors, and technicians who demand precision without compromise.
✅ Dual Measurement Principles – Magnetic induction (F probe) for non-magnetic coatings on ferrous metals; Eddy current (N probe) for non-conductive coatings on non-ferrous metals
✅ Multiple Measurement Modes – Continuous scan, single-shot, and high-precision averaging with outlier filtering
✅ Real-Time Temperature Compensation – Automatically corrects drift caused by ambient or probe temperature changes
✅ Statistical Analysis – Displays Mean, Max, Min, Count (NO.), and Standard Deviation (S.DEV)
✅ Flexible Calibration – Supports zero-point, single-point, and two-point calibration; includes system error correction via basic and temperature-coefficient calibration
✅ Data Management – Stores up to 500 readings; allows deletion of individual or all stored data
✅ Alarm Function – User-defined upper/lower limits with audible alert for out-of-tolerance measurements
✅ User-Friendly Interface – Clear LCD display, beep confirmation, battery level indicator
✅ Smart Power Management – Manual, auto timeout (adjustable), and low-battery shutdown options
✅ Compact & Lightweight – Only 240 g (without batteries), fits easily in a tool pouch
| Parameter | Specification |
|---|---|
| Model | KD-920S |
| Probe Types | F (Ferrous), N (Non-ferrous) |
| Measurement Principle | Magnetic Induction (F), Eddy Current (N) |
| Measurement Range | - F: 0–2000 µm - N: 0–1500 µm - Cr on Cu: 0–40 µm |
| Resolution | 0.1 µm |
| Accuracy | - Zero calibration: ±(3% H + 1 µm) - Two-point calibration: ±[(1–3%) H + 1 µm] |
| Minimum Substrate Radius | Convex: 1.5 mm / Concave: 3 mm |
| Minimum Measurement Area | Φ7 mm (F), Φ5 mm (N) |
| Critical Substrate Thickness | ≥0.5 mm (Fe), ≥0.3 mm (Non-Fe) |
| Operating Environment | Temperature: 0–40°C; Humidity: 20–90% RH (non-condensing) |
| Power Supply | 2 × AA alkaline batteries (1.5 V each) |
| Dimensions | 151 × 76 × 38 mm |
| Weight | ~240 g (excluding batteries) |
| Housing Material | High-strength plastic |
| Compliance Standards | GB/T 4956–1985, GB/T 4957–1985, JB/T 8393–1996, JJG 889–95, JJG 818–93 |
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