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Decade box with spires
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studied to simulate high resistance
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suitable to check the insulation testers with test voltage up to 5000V d.c.
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Ranges that can be made with the 4 contact spires supplied: 10x1 MΩ, 10x10MΩ, 10x100MΩ, 10x1GΩ.
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In this way are selectable all values of resistance included between 1MΩ and 11.11GΩ with steps of 1 MΩ . Accuracy: ±1%.
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Temperature coefficient: 100 ppm °C .
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Max power 2W for each element.
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Applicable max voltages : 1250V with 1MΩ, 2500V with 2MΩ, 3750V with 3MΩ and 5000V for values higher than 3MΩ.
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In a case with removable cover.