Crack Meter (Tri-axial/3D) is intended to monitor movement across surface cracks and joints in concrete structures or rock in three directions. This system is also used as Tri-axial/3D Joint Meter.
The Triaxial Crack Meter (Mechanical) of PMT is designed to manually measure the displacement across cracks and/or expansion joints in three directions. It is used for surface measurement by anchoring the two elements on either side of joint/crack and accurately measuring the distance between them over a period of time with depth gage of 25/50/100 mm range and 0.01 mm resolution.
For Vibrating Wire/Potentiometeric Crackmeters this item has three sets of displacement transducer assemblies installed across the crack in three mutually perpendicular directions. Free movement of the sliding shaft in all directions ensures accuracy of measurement.
Introduction:
Features:
- - Corrosion proof, rugged and robust construction
- - Hostile & severe environment friendly
- - Easy installation
- - Reliability, accuracy and simplicity in readings
- - High stability and sensitivity
- - Adaptable to data loggers and/or data acquisition systems
Specifications:
| PMT (Electrical) | PMT (Mechanical) | |
|---|---|---|
| Sensor type | Vibrating Wire / Potentiometer | Mechanical |
| Sensor range | 25, 50, 100, 150, 200mm | 25, 50, 100mm |
| Resolution | 0.02% F.S. (VW) 0.01mm (P) | 0.02% F.S. |
| Accuracy | ±0.1% F.S. | ±0.1% F.S. |
| Temperature Range | -20 to 80C | -20 to 80C |
| Non-Linearity | <0.5% F.S. | - |
| Cable | 4-wire shielded polyurethane jacket | Stainless Steel |