esi SR1030 Series Oil Immersed Transfer Standard

  • Product No:ESI SR1030 Series
  • Manufacturer:IET LABS, Inc.

Description:

The esi SR1030 provides the part-per-million (ppm) resistance transfer accuracies and the long-term stabilities you need in today’s modern metrology and calibration laboratories.

The esi SR1030 Resistance Transfer Standards are extremely accurate, stable resistance standards that are used on the bench and are light enough to carry with you to remote calibration, repair, production or R&D sites. The esi SR1030 consists of six transfer standards in decades from 1 Ω to 100 kΩ per step. Each decade standard consists of 12 nominally equal resistors matched initially to within 10 ppm. In addition, each decade standard produces three decade values – 10 resistors in series (10R), 10 resistors in parallel (R/10), and nine of the 10 resistors in series/parallel (R). By making a 1:1 comparison with the tenth resistor, you can resolve a series-parallel value to better than 1 ppm.


Features:

• Part-per-million transfers from 100 mΩ to 1 MΩ

• Thermally isolated by oil for maximum short-term thermal stability
• Excellent long-term stability; ±20 ppm for 6 months
• Accuracy calibrated to ±10 ppm
• Seven decades of resistance transfer-1, 10, 100, 1 k, 10 k and 100 kΩ/step
• 100:1 resistance transfers using series, parallel, series/parallel connection
• Calibration readings traceable to the NIST are provided

  • Nominal Values (per step)
    1, 10, 100, 1 k, 10 k and 100 kΩ

  • Transfer Accuracy
    100:1         ±(1 ppm + 0.1 μΩ) at parallel value, using SB103, PC101, and SPC102 as necessary
    10:1           ± (1 ppm + 0.1 μΩ) at series or parallel value, using SB103, PC101, and SPC102 as necessary

  • Initial Adjustment
    ±20 ppm of nominal value matched within 10 ppm

  • Calibration Accuracy
    ±10 ppm, NIST traceable

  • Calibration Conditions
    23 ±1 ºC, low-power, four-terminal measurement, initial calibration readings are provided

  • Long-Term Resistance Stability
    ±20 ppm of nominal for 6 months
    ±35 ppm for 2 years, typical
    ±50 ppm for 5 years, typical

  • Temperature Coefficient
    1 Ω                         ±15 ppm/ºC, matched within 5 ppm/ºC
    10 Ω                       ±1 ppm/ºC
    100 Ω to 100 kΩ    ±5 ppm/ºC, matched within 3 ppm/ºC

  • Power Coefficient (typical)
    1 Ω                         ±0.3 ppm/mW/resistor
    10 Ω                       ±0.02 ppm/mW/resistor
    100 Ω to 100 kΩ    ±0.1 ppm/mW/resistor

  • Maximum Power Rating
    Single Step           1W/step
    10 resistors           5W/distributed

  • Leakage Resistance
    1 Ω to 10 kΩ          >1012 Ω terminal to case
    100 kΩ                   >1013 Ω terminal to case

  • Breakdown Voltage
    1500 volts peak to case

  • Oil Bath
    Type                       Mineral oil, Penreco Drakeol #9, white
    Insulation
        Resistance Typically 1014 Ω cm
        Quantity Approximately 0.5 gallons

  • Dimensions (with oil)
    Height                   120 mm (4.7 in)
    Width                    117 mm (4.6 in)
    Depth                    335 mm (13.2 in)
    Weight                  6.35 kg (10 lb)

  • Operating Environment
    Temperature         22.8 ºC ±3.3 ºC (73±6 ºF)
    Humidity               20 to 50 % relative humidity

  • Safe Operating Environment
    Temperature        0 ºC to 50 ºC
                                 (32 ºF to 126 ºF)
    Humidity               15 to 80 % relative humidity