SR1-XX Secondary Resistance Standard.
SR1-XX Secondary Resistance Standard offers an accurate, stable, versatile working standard.
Long term accuracy of most values is ± 50PPM. These resistance standards are designed to minimize series inductance and shunt capacitance. Terminal binding posts are located on the top of the unit and are brought through the bottom of the unit where removable banana plugs may be connected.
Thus, four-terminal measurements can be made. This configuration also allows for one or more
Model SR1 Standard Resistors to be connected in parallel or in series for a variety of resistance values by stacking resistors.

• Standard Values: 0.01Ω, 0.1Ω, 1Ω, 10Ω,
  100Ω, 1kΩ, 10kΩ, 100kΩ, 1MΩ, 10MΩ

• Initial Accuracy..± 20PPM (1Ω through 100kΩ)

• Long Term Accuracy..± 50PPM
  (1Ω through 100 KΩ)

• Calibration Accuracy..± 10PPM
  (1Ω through 100KΩ)

APPLICATIONS: Used as a laboratory resistance standard for calibration or verification of resistance measuring systems.