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Technical Description

The 4WFBS350 completes a full Wheatstone bridge. It can also be used to complete the back half of a Wheatstone bridge for use in a ¼ bridge strain circuit (1 active element) using a dummy gage, or in a ½ bridge strain circuit (2 active elements). The Wheatstone bridge circuit converts small changes in resistance to an output voltage that our dataloggers can measure.

The 4WFBS350 includes two external pins that allow customers to perform shunt calibrations, which are used to correct for sensitivity errors.

4WFBS350 Specifications

  • 2:1 Resistive Divider
    • Back Plane Resistors:
      1 kohm/1 kohm
    • Ratio Tolerance @ 25°C: ±0.01%
    • Maximum Ratio Temperature Coefficient: 0.5 ppm/°C (-55° to 85°C)
    • Power Rating per Element: 0.1 W @ 70°C
  • Completion Resistor
    (bulk metal foil)
    • Completion Resistor:
      350 ohm
    • Tolerance (@ 25°C): ±0.01%
    • Maximum Ratio Temperature Coefficient: 0.8 ppm/°C
    • Power Rating: 0.25 W @ 70°C
  • Dimensions of body with prongs: 1.5 x 1.5 x 2.7 cm
    (0.6" x 0.6" x 1.0")
  • Weight: 6 g (0.2 oz)

Schematic is available in the product brochure.

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Shipping Weights & Dims

Single Box Shipping Weight:
     2.0 lbs
     907 g

Single Box Shipping Dimensions:
     12" x 12" x 4"
     30.5 x 30.5 x 10.3 cm