Description
- V/W Crack Meter is used to measure the size change of the surface or connection part and crack of concrete structure.
- The product is equipped with sensor part and anchor fixing part. Any size change of cracks is transmitted to the sensor unit through the anchor and the body. When the V/W is magnetized by the magnetic coil due to the change of the tensile force, the V/W generates the resonant frequency. This frequency is transmitted to the output device and displayed in engineering units. Anti-corrosion and anti-rust materials were applied for measurements semi-permanently.
Composition & Characteristic
▣ Components
① Crack meter sensor
② Cable
③ Protection box
▣ Features
① High stability and reliability
② 10m H2O water-proof structure
③ Different measurements (50mm~100mm)
④ Built-in high precision temp sensor
Specification
| Model Name | SJ-4500 |
|---|---|
| Sensor applied | Sensor (V/W Type) |
| Measurement range | 0 ~ 50mm |
| Resolution | 0.025% FSR |
| Accuracy | ±0.5% FSR |
| Coefficient of expansion | 11×10⁻⁶ /°C |
| Working Temp. | -40°C ~ 80°C |
| Built-in temp sensor | NTC Thermistor (3KΩ-ATF) |
| Temp sensor working range | Thermistor: -40°C ~ 80°C |
| Temp sensor accuracy | Thermistor: ±1°C |
| Waterproofing | 10m H2O |
| Dimension | L = 300mm / D(Ø) = 15mm |
| Weight | 0.2kg |
| Material | Special steel & High density epoxy forming |
This is subject to change without prior notice in order to improve the product’s quality.