Description
Model: EDJ-40T
The EDJ-40T Triaxial Crack/Joint Meter is designed for three-dimensional monitoring of joint or crack movements in large concrete and rock structures such as dam galleries and block interfaces. The system enables precise measurement of displacement along the X, Y, and Z axes, providing a complete understanding of the structural behavior and deformation patterns over time.
The instrument incorporates three EDE-VXX vibrating wire displacement transducers, each oriented orthogonally to measure movement in one direction. The sensors are connected through flexible joints and housed within a rugged, corrosion-resistant assembly that ensures accurate, stable performance even in harsh or submerged environments.
This model is suitable for both surface-mounted and embedment installations, making it ideal for use in dams, tunnels, and other heavy civil engineering structures requiring multi-axis displacement monitoring.
Specifications
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Instrument type: Triaxial Crack / Joint Meter
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Sensor type: Vibrating wire
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Configuration: Three displacement sensors (X, Y, Z axes) with flexible joints and remote readout compatibility
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Application: Monitoring joint and crack movement in dam galleries, between concrete blocks, or within mass concrete
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Measured parameters: Crack / joint displacement in three orthogonal directions (3-axis)
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Measuring range: 15 mm, 25 mm, 50 mm (specify per axis)
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Testing & calibration: Thermal cycling (-20 °C to +80 °C), thermal variation testing, accuracy and waterproof verification for WP version
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Key features:
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Triaxial configuration enables full 3D deformation analysis
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Suitable for both surface and embedded installations
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Waterproof version supports long-term underwater applications
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Durable stainless-steel and polymer construction for harsh site conditions
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Protection: IP-68 — water-resistant up to 40 m water column; waterproof version up to 100 m water column
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Dimensions: Depend on sensor range and configuration
