Electrical coil resistance R321 (R 321, R-321)
Accuracy class 0.01
Electrical coil resistance R321
Coils of electrical resistance R321 is the standard measures of resistance and are designed for inspection and adjustment in DC operating coils of resistance, as well as the model and work (laboratory) instrumentation.
Electrical coil resistance R321 maintained in liquid medium (capacitor oil, kerosene, silicone fluid).
Tolerance of resistance coils R321 from their nominal values due to inaccurate fitting at 20 ° C and not higher than the rated capacity of not more than ± 0,01%.
The change in resistance for a year for no more than R321 coils ± 0,002%.
Changing the actual value of the resistance when the power of the face to the higher allowable under steady-state heat coils for R321 less than ± 0,005%. Overall dimensions 110h170 mm. Mass unlubricated coil not exceeding 1 kg.
MTBF: R321 for the coils of at least 66,000 hours R321 Operating conditions: ambient temperature 15 ... 30 ° C, 80% relative humidity (20 ° C).