At under $600 for most values, the IET SRX and SRC series are cost effective yet high performing, stable laboratory or portable resistance standards. The SRX and SRC series are available in 35 resistance values ranging from 1 Milli-Ohm to 1 point 9 Tera-Ohms. Custom values are available to satisfy any requirement.
The performance of these precision standards far surpasses what you would expect for the cost. In the mid range, the resistance value is stable to better than 10 P P M per year, and the temperature coefficient is less than 1 P P M per degree C. As an example, a 100 Ohm standard will change less than 1 Milli-Ohm per year
Each SRX and SRC standard comes with an I S O 17-0-2-5 calibration certificate, indicating uncertainties and the actual readings of the resistor.
Ruggedness and small size make the S R X and S R C Series ideal for any application outside a laboratory environment. Because of the low temperature coefficient, they require no oil bath.
It is possible to maintain these resistance standards indefinitely. Calibration cost is so reasonable that many labs have found it more cost effective to acquire S R X and S R C resistors and put them on very long calibration cycles rather than purchase low cost loose resistors that require frequent calibrations.
These standards will work at very high currents and voltages. Additionally, they can be custom ordered with current ratings of more than 20 amps and voltage ratings more than 10 Kill-ah-watts.
This is just another example of IET's commitment--unique in the industry--of providing the customers exactly what they need to satisfy their requirement, even in an economical product.
For detailed specifications, on the S R X and S R A series please consult our datasheet. (As in HARS video 1:38 Show Datasheet on Website)
If the S R X and S R C resistors do not meet your needs, IET offers 15 other families of decade resistors and standards. Specifically, if you are looking for higher performing Resistance Standards consider the S R X 1 or the S R L series
With a simple phone call or email, we can expedite the selection process and help you find the best model for your application and budget.