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Variable Standards

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  1. ADR 6-dial decade resistance box series

    ADR 6-dial decade resistance box series

    The ADR 6-dial decade resistance box series with 6½ digit readings features high resistors, low contact resistance rotary switches, low thermal EMF output terminals and the double shielded construction. There are 5 models available offering different resistance ranges starting from 0.1Ω minimum to 1.111210KΩ maximum up to 10Ω minimum to 11.11110MΩ maximum.

    • Accuracy down to ≤0.005% +2 mΩ for some models
    • Temperature coefficient of resistance ≤5 ppm/°C
    • Long-term stability in resistance ≤50 ppm/year (storage life)
    • Low contact resistance switch and three clip-typed contacts in parallel
    • Low thermal EMF terminal
    • Double electrical shielding protective against noise
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  2. ADR-1XXX 1-dial resistance box series

    ADR-1XXX 1-dial resistance box series

    The ADR-1xxx series is a standard resistor which is ideally suited for repetitive daily work. The single dial system means the resistance is easily switched from one value to another. This greatly improves work efficiency and helps to avoid mistakes, which may happen when using a 6-dial decade standard resistor. Also suitable for the inspection of Platinum RTD and conductive meters, the resistance elements utilize Bulk Metal® Foil technology and the connections to the rotary switch are made by using 4-terminal junctions. This ensures that high precision, high stability and low temperature coefficients are achieved.

    • Up to 5-digit resistance values on switching contacts may be specified
    • Resistance value range from 1Ω up to 1MΩ
    • Improved work efficiency and elimination of careless mistakes
    • Lightweight, compact size
    • High precision, high stability.
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  3. ATS resistance transfer standards series

    ATS resistance transfer standards series

    The ATS series is a resistance transfer standard used to calibrate working standard resistors by using a primary resistor. They consist of 10 high precision resistors of the same nominal value (R) which are connected in series known as Haymon bridge construction. The ATS unit can be used as a standard resistor due to the low temperature coefficient and high stability features of Bulk Metal® foil technology, ensuring very tight matching accuracy.

    • Uses Bulk Metal® Foil as a resistive element
    • Usable in air without the need of an oil bath due to its superior temperature coefficient
    • Very tight matching accuracy.
    • Excellent long-term stability
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