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ESI SR1010 10k

ESI SR1010 10k Ohm / Step Resistance Transfer Standard
  • ESI SR1010 10k for sale
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$295.00 Sorry, Out of Stock

Model: ESI SR1010 10k     Condition: Reconditioned

  • Initial Accuracy... ± 20PPM of nominal value matched within 10PPM
  • Transfer Accuracy... ± (1PPM + 0.1uΩ at parallel value) for 100:1
  • Transfer Accuracy... ± (1PPM + 1uΩ at series parallel value) for 10:1
  • Long Term Accuracy... ± 50PPM of nominal value
  • Calibration Accuracy... ± 10PPM

The esi SR1010 transfer standards consist of 12 equal resistance steps. These steps are available in increments of 1Ω (SR1010-1), 10Ω (SR1010-10), 100Ω (SR1010-100), 1kΩ (SR1010-1k), 10kΩ (SR1010-10k) and 100kΩ (SR1010-100k). The esi SR1010 provides four-terminal connections for each step or for series and parallel combinations of these resistance steps using the optional Series-Parallel (SPC102), Parallel Compensation Networks (PC101) and shorting bars (SB103).

Description
The esi SR1010 meets or exceeds all of the requirements for resistance transfer standards in precision measurement applications. It is easily configured to transfer resistances up or down a decade from their initial resistance value. When used with the connecting networks and shorting bars, it provides 1 ppm transfer accuracies.

Each transfer standard contains twelve equal value precision resistors connected in series by specially designed true 4-terminal junctions. These special junctions assure that a 4-terminal measurement of a series of resistors agrees with the sums of the individual resistors in the series. Accurate parallel connections can be made with the Parallel Compensation Network and the Shorting Bars connected to the junctions.

These standards can be connected to provide three decade values: 10 resistors in series, 10R: 9 resistors in series — parallel, 1R: and 10 resistors in parallel, R/10. The part per million accuracy is assured as the series value is equal to 100 times the parallel value to better than 1 ppm. The series — parallel value relative to either the series value or the parallel value can be found to better than 1 ppm by making a 1:1 comparison with the remaining tenth resistor and a simple calculation.

The accuracy and precision of the individual resistors also make the esiSR1010 transfer standards ideal for use as amulti-value standard resistor or reference voltage divider.

Advantages of Transfer Standards
In order to perform calibrations with a high degree of accuracy, reference standards must be employed at every range or decade of the measuring or calibration instrumentation. Clearly, this can be difficult and costly since these standards must be highly stable and their precise values must be known with a high degree of certainty and sufficient resolution.

To minimize the cost and difficulty, more practical means of performing such calibrations is to use transfer standards.

If one has a single standard that is calibrated by a national laboratory, one can then compare the transfer standards to the certified standard by ratio techniques. See our Technical Applications section for a full tutorial.The Benefits of Using Transfer Standards

esi SR1010 Transfer Standards Basic Specifications

Transfer Accuracy:
 ±(1 ppm + 0.1 μΩ) at parallel value for 100:1 transfer ±(1 ppm + 1 μΩ) at series-parallel value for 10:1 transfer
Initial Accuracy ±20 ppm of nominal value matched within 10 ppm
Long-Term Accuracy ±50 ppm of nominal value
Calibration Accuracy ±10 ppm
Calibration Conditions 23 ºC, low power, four-terminal measurement
Temperature Coefficient ±5 ppm/ºC matched within 3 ppm/ºC for 100 Ω and higher, ±1 ppm/ºC for 10 Ω ±15 ppm/ºC matched within 5ppm/ºC for 1 Ω
Power Coefficient ±0.1 ppm/mW per resistor for 100 Ω and higher ±0.02 ppm/mW per resistor for 10 Ω ±0.3 ppm/mW per resistor for 1 Ω
Maximum Power Rating 1Ω/step or 5 W distributed over 10 resistors
Breakdown Voltage 1500 V peak to case
Leakage Resistance Greater than 1012 Ω from terminal to case

User Manual (QR Link)
Service Manual (QR Link)
Item Description
ESI PC101 ESI PC101 Parallel Compensation Network
ESI SPC102 ESI SPC102 Series-Parallel Compensation Network
ESI SB103 ESI SB103 Shorting Bar (Sold per each - not a set of two)

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ESI SR1010 10k

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