Model | WH81 | WH82 |
Principle | Magnetic Method (F-type probe) | Magnetic Method (F-type probe) & Eddy Current Method (NF-type probe) |
Range | 0-1250um | / |
Accuracy error |
zero calibration ± (1 + 3% H); two-point calibration ± [(1% ~ 3% H)] H + 1.5 |
/ |
Power | 2 * AA battery | / |
Unit | Um/mil | / |
Temperature | 0-40 ℃ | / |
humidity | ≤85% | / |
Minimum substrate | 10 * 10mm | / |
Minimum curvature | 5mm convex; 5mm concave | / |
Thinnest substrate | 0.4mm | / |
lWeight | 99g | / |
lSize | 110mm * 65mm * 30mm | / |