The KFWB seres foil strain gages have the surface covered with a special resin for waterproofing. The waterproof structure enables these gages to serve for outdoor or underwater measurement merely by being bonded to measuring objects. The insulation resistance shows virtually no deterioration even after 100 hours of use under underwater pressure of approximately 10 MPa. In addition, the covering resin is flexible enough to enable easy bonding to curved surfaces.
Notes on pre-attached lead-wire cables ∙ Standard color of the 2-wire cable pre-attached to uniaxial gages is red (R). If desired, a white, green, yellow or black cable can be pre-attached. ∙ Standard 3-wire cable pre-attached to uniaxial gages has red stripes (R). If desired, the red stripes can be changed to blue or yellow stripes. ∙ In the case of a biaxial gage, 2-wire cables are color-coded wth red and white stripes for 0º and 90º, respectively and 3-wire cables, with red and yellow stripes for 0º and 90º, respectively. ∙ In the case of a triaxial gage, 2-wire cables are color-coded wth red, white and green stripes for 0ºand 90º and 45º, respectively and 3-wire cables, with red, yellow and blue stripes for 0ºand 90º and 45º, respectively.