The Crack and Joint Meter Model EDJ-50V (MTI.EWS.ER.M-EDJ-50V). is designed to measures movement between joints of concrete blocks in a concrete dam and is suitable for embedment applications. It consists of a plastic housing with a stainless steel flange on one end, and a stainless steel socket on the other. A vibrating wire displacement transducer inside the housing is connected to the stainless steel flange and the socket with flexible joints, to allow small lateral movement.
Crack and Joint Meter Model EDJ-50V
• Sensor Type: Vibrating wire
• Parameter: Crack/joint
• Range: 15, 25, 50 mm; specify
• Key Testing / Calibration: Thermal cycling (-20 to +80°C), Thermal variation data, accuracy test
• Key Feature/Advantage: Useful for installation at inaccessible locations
• Protection (Waterproofing): IP-68, water resistant up to 40 mwc
• Dimension (mm): Depends on range
• Accuracy: ± 0.2 % fs normal ± 0.1 % fs optiona
• Sensitivity: ± 1.0 % fs
• Resolution: 0.025% fs
• Temperature limit: -10 to 80°C
• Thermistor: YSI 44005 or equivalent (3 kOhms at 25°C)
• Flange diameter: 62 mm (EDJ-50V)
