Joint-Meter

KJA-A/KJB-A Joint-Meter Approx.1mV/V(2000×10-6strain)

These models are used to measure joint opening displacement of mass concrete. Two models are ready for different applications. The KJA-A Joint-Meter is embedded in an exclusive socket mounted to concrete blocks made of mass concrete or other materials, and is used to measure joint opening displacement. The KJB-A is used to measure displacement on concrete surfaces or underwater simply by manufacturing appropriate fittings. Moreover, these models are available for waterproof type displacement transducer. Optional model with built-in thermocouple unit can be supplied.

Protection ratings : IP 68 equivalent

KJA-A/KJB-A Joint-Meter
Features
  • Excellent waterproofness
  • Long term stable measurement
  • Easy Installation
  • Specificatioins

    Type Capacity Rated output
    (Approx.)
    Non-linearity Temperature range
    KJA-5A
    KJB-5A
    5mm 1mV/V (2000 x 10-6 strain) 1%RO -20 to +80℃
    KJA-10A
    KJB-10A
    10mm
    KJA-20A
    KJB-20A
    20mm
    KJA-50A
    KJB-50A
    50mm