VW Strain Gauges / VW Displacement Transducers / Extensometers / Piezometers
VW Strain Gauges | Dynamic Embedment, Arc Weldable, Concrete Embedment

Model 3900 | Dynamic Embedment (Electrical Resistance)
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Standard Range: 5000 µε
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Resolution: 0.025% F.S.
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Accuracy: ±0.25% F.S.
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Nonlinearity: <1.0% F.S.
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Temperature Range: −20°C to +80°C
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Active Gauge Length: 203 mm

Model 4000 | Arc Weldable (VW)
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Standard Range: 3000 µε
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Resolution: 1.0 µε
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Accuracy: ±0.5% F.S.
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Nonlinearity: <0.5% F.S.
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Temperature Range: −20°C to +80°C
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Active Gauge Length: 150 mm

Model 4200, 4202, 4204, 4210 | Concrete Embedment (VW)
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Standard Range: 4200, 4200L, 4202, 4204, 4210 | 3,000 µε
4200ER | 5,000 to 10,000 µε -
Resolution: 4200, 4200L, 4204 | 1.0 µε
4200ER | 2.0-5.0 µε
4202, 4210 | 0.4 µε -
Accuracy: 4200, 4200L, 4202, 4204, 4210 | ±0.5% F.S.³
4200ER | ±0.5% F.S. -
Nonlinearity: 4200, 4200L, 4202, 4204, 4210 | <0.5% F.S.
4200ER | ±2.5-4.0% F.S. -
Temperature Range: −20°C to +80°C
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Active Gauge Length: 4200, 4200ER, 4200L | 153 mm
4202 | 51 mm
4204 | 102 mm
4210 | 250 mm

Model 4200HT, 4200HT-T | High Temperature Embedment (VW)
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Standard Range: 3000 µε
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Resolution: 1.0 µε
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Accuracy: 4200HT | ±0.5% F.S.
4200HT-T | ±0.5% F.S. -
Nonlinearity: <0.5% F.S.
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Temperature Range: 4200HT | −20 °C to +200 °C
4200HT-T | −20 °C to +220 °C -
Active Gauge Length: 4200HT | 153 mm
4200HT-T | 148 mm

Model 4435 | Soil Extensometers (VW)
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Standard Range: 25, 50, 100, 150, 300 mm
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Resolution: 0.025% F.S.
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Accuracy: ±0.1% F.S.
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Nonlinearity: <0.5% F.S.
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Temperature Range: −20°C to +80°C
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Minimum Gauge Length: 610 mm
Readouts | Handheld Readout for VW

Model 404 | Intrinsically Safe Readout (VW)
- Excitation Range: 400 Hz to 6000 Hz, 5 Volt Square Wave
- Display Resolution: 0.1 digit, 0.1 Hz, 0.1 μs , 1 µε, 0.1°C
- Timebase Accuracy: ±50 ppm
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Temperature Range: −20°C to +40°C

Model GK-404 | Handheld Readout (VW)
- Excitation Range: 400 Hz to 6000 Hz, 5 Volt Square Wave
- Display Resolution: 0.1 digit, 0.1 Hz, 0.1 μs , 1 µε, 0.1°C
- Timebase Accuracy: ±50 ppm
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Temperature Range: −20°C to +40°C