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Seaward RS3/250
Cropico RS3 High Stability Resistance Standard, 250Ω

  • Resistance Value: 250 Ω
  • Uncertainty of Adjustment @20° C: 0.005%
  • Uncertainty of Certification: ± 25 ppm
  • Temp Coeff Typical 15 to 20° C: 3 ppm/° C
  • Stability of over 1 year: 0.001 %
  • Dissipation Max in Air Watts: 1
  • Dissipation Max in Oil Watts: 10
  • Max. I in Air (Amps): 0.1 A
  • Max. I in Oil (Amps): 0.1 A
  • Maximum Continuous Working Voltage: 70 dc /33 vrms
  • Terminals: Potential, Copper 4 mm Current, Brass
Click for larger image of the Seaward RS3/250 Cropico RS3 High Stability Resistance Standard, 250ΩClick for larger image
Seaward RS3/250 Shown
Product Information
Datasheet 160 KB PDF
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The Seaward RS3/250 resistance standard is constructed using carefully selected low temperature coefficient Manganin or Zeranin wire, depending on the value, mounted on formers which have a high mechanical stability. The wires are wound in a strain free manner and heat treated to remove any stresses. They are also artificially aged under the strictest control. The result is a standard of high quality with long term stability and permanence of calibration combined with a low temperature coefficient.

Seaward offers the widest range of standard values available today.

The RS3250 also offers a high current carrying capability which makes them ideal for applications where precise current needs to be measured. This product has a resistance value of 250 ohms.

Ordering Information
Model Description Buy Now Price
RS3/250 Seaward RS3/250 Cropico RS3 High Stability Resistance Standard, 250Ω Buy Now $925.00
Included Accessories
  • 1 - Resistance Standard
Included
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