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| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM Manufacturer |
| Model | YT-UC750 |
| Measurement Range | 0.15–300 mm (steel) |
| Resolution | 0.001 mm (0.15–100 mm), 0.01 mm (100–300 mm) |
| Display | 128×64 LCD with LED backlight |
| Accuracy | ±0.005 mm (<5 mm), ±0.01 mm (5–20 mm), ±0.1 mm (20–300 mm) |
| Sound Velocity Range | 1000–9999 m/s |
| Operating Temperature | –10°C to +50°C (optional –20°C) |
| Power Supply | 2 × AA 1.5 V alkaline batteries (up to 200 h operation without backlight) |
| Auto-Shutdown | After 5 min inactivity |
| Data Storage | 500 readings |
| Probe Types | Single-crystal (e.g., 15 MHz), dual-element (5 MHz, 7 MHz), optional 4 mm single-crystal, 2 MHz high-penetration, and 7 MHz small-diameter probes |
| Coating-Tolerant Mode | Yes (echo-to-echo & pulse-echo) |
| Calibration Modes | Zero calibration on test block, sound velocity inversion (reverse calibration), single-point calibration |
| Units | mm / inch switchable |
| Alarms & Delta Mode | Configurable |
| Dimensions | 153 × 67 × 26 mm |
| Weight | 220 g |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Region Classification | Domestic (China) |
| Model | YT-321 |
| Price | USD 170 (FOB) |
| Measurement Principle | Pulse-Echo Ultrasonic |
| Range (Steel) | 0.75–350 mm |
| Standard Probe Range | 1–250 mm |
| Resolution | 0.1 mm |
| Sound Velocity Adjustment | 1000–9999 m/s |
| Operating Temp. | −10 to +60 °C |
| Accuracy | ±(1% H + 0.1) mm (H = actual thickness) |
| Power | Two AAA alkaline batteries |
| Battery Life | ~200 hours |
| Dimensions | 130 × 70 × 25 mm |
| Weight | 0.2 kg (instrument only) |
| Display | High-brightness LED backlight |
| Compliance | Designed per ISO 2400:2019 (Ultrasonic thickness measurement — Calibration and verification procedures) |
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