ELC-31V is a vibrating wire type center hole load cell used to determine the load in rock bolts, tieback anchors, etc. It is filled with fluid with a vibrating wire pressure sensor attached to it, to convert the load into a frequency output.
A solid load cell for stress measurement in tunnel supports and struts is also available on request.
Hydraulic Center Hole Load Cell ELC-31V
Range (kN)/ID (mm) 250/35, 500/52, 750/78, 1000/105, 2000/130, 2500/0 Overload 110 % fs Calibration accuracy ± 1 % fs Non-linearity ± 2 % fs from 10% to full range Temperature limit -10° to 50°C Temperature effect ± 0.06% fs/° C Thermistor YSI 44005 or equivalent