WFRA Series Waterproof Strain Gauges

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Caractéristiques principales

• 3% (30000×10⁻⁶ strain) Strain limit
• Fatigue life: 3×10⁴ (±1500×10⁻⁶ strain)
• Operating temperature: 0~+80°C
• Temperature compensation: +10~+80°C
• Gauge resistance: 120Ω
• Gauge length: 3, 6mm
• Type: Waterproof 3-element with integrated leadwire, general use

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About the WFRA Series Waterproof Straingauges

Our WF-series water proof type strain gauges eliminate the need for moisture-proofing coating, which is sometimes troublesome in a field test. They have a pre-attached vinyl leadwire and an entire coating with epoxy resin. The coating is transparent and flexible, which ensures easy installation of the gauge. By merely bonding the gauges with CN or P-2 adhesive, outdoor or underwater measurement for a short-term becomes possible. These gauges are also effective in omitting primary coating in case of applying a multilayer coating.

Temperature compensation materials

• 11: Mild steel
• 17: Stainless steel
• 23: Aluminium

Strain gauges with paralleled vinyl leadwire or 3-wire paralleled vinyl leadwire are available:

• Paralleled 1m
• Paralleled 3m
• Paralleled 5m
• 3-wire 3m
• 3-wire 5m

Used leadwire: 0.08mm² total resistance of leadwire per meter: 0.44Ω

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