Inductance standard R593 (R-593, R 593, p 593, p-593, p593)
Designed for use as an AC element in measuring systems with frequency of 1 kHz to 10000kHz.
Standard’s nominal value of inductance 0.01 mkH- 100mH
Accuracy class: 1; 2; 5
Valued Inductance standard R593 (hereinafter - standard) are designed for use as an AC element in measuring systems with frequency of 1 kHz to 10000kHz.
Inductance standard R593 designed for use in moderate climate conditions in dry heated rooms at ambient temperature of 10 to 35 ° C and relative humidity up to 80% at 25 ° C.
Inductance standard R593 correspond to GOST 21175-75. Inductance standard nominal value (L), accuracy classes (K), normal frequency (f), attestation fixed-frequencies, maximum current values (I), maximum operating voltage values (U), lowest values quality factor (Q) for frequencies f shown in Table 1. Acceptable basic error limit, shown in percentage of standard’s inductance nominal value is equal to accuracy class at following normal conditions:
ambient temperature (20 ± 5) ° C;
relative humidity (65 ± 15)%;
current value is not more than maximum with curve sinusoidal form and distortion coefficient do not exceed 5%;
no external electric and magnetic fields, except Earth field.
Standard accuracy attestation at inductance with above requirements is shown in Table 2, under condition when frequency deviation is not more than ± 0.5%.
Determination quality factor Error (δ) in percentage or AC resistance (Δ) in Ohm considering normal conditions (above) does not exceed:
δ = ± (0.005 Q + 2) (1)
Δ = ± (0.02 R + 0.001), (2)
where Q – standard measured quality factor
R - standard measured resistance AC, Ohm.
Standard R593 quality factor is calculated by the formula:
Q = (2π • f • L) / R, (3)
where f - measurement frequency in Hz;
L - the measured inductance value, H.
Inductance standard R593 additional accuracy error caused by ambient temperature deviation from specified in normal conditions to any temperature in working temperature range, does not exceed every 10 ° C of temperature changes than half of maximum permissible basic error.
Inductance standard R593 AC or quality factor resistance changes, caused by ambient temperature deviation from specified in normal conditions to any temperature in working temperature range, does not exceed every 10 ° C of temperature changes, expressed by dependencies: ± (0.06 R + 0.001) Ohm; ± 0.06 Q.
Standard’s P593own capacity with nominal inductance values is over 1mkH and do not exceed 15pF. Dimensions, mm, do not exceed:
diameter 100, height 150 - for L ≥ 1mkH;
diameter 40, height 160 - for L ≤ 0.3 mkH;
490 x 335 x 185 - suitcase for packing.
Each standard weight does not exceed 0.7 kg.
Standard P593 set weight with suitcase does not exceed 15 kg.
Photos P593 (Р593)