IETLAB GenRad 1412-BC Decade Capacitance Box (0.5% + 5 pF; 50 pF tới 1.11115 µF )

  • Manufacturer: IET LAB
    Model: GenRad 1412-BC
    Origin: USA
    Guarantee: 12 month
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(Full specifications can be found on datasheet)

Range from 50 pF to 1.11115 µF
Resolution better than 1 pF
Accuracy 0.5% + 5 pF
Low loss, leakage, dielectric absorption
Verification of calibration of LCR meters, multimeters, and instrumentation




1412 Decade Capacitor Basic Specifications

(See Datasheet for Full Specifications)

Range: 50 pF  to 1.111 15 μF with a resolution of <1 pF

Minimum Capacitance: 50 pF.

Accuracy: ±(0.5% + 5 pF) at 1 kHz

Temperature Coefficient:-140 ppm/ °C (nominal).

The wide capacitance range and high resolution of the GenRad 1412-BC decade capacitance box make it exceptionally useful in both laboratory and test shop. Owing to its fine adjustment of capacitance, it is a convenient variable capacitor to use with an Impedance Comparator. The polystyrene dielectric used in the decade steps is necessary for applications requiring low dielectric absorption and constancy of both capacitance and dissipation factor with frequency.

Mounted in a double-shield box, four decades of polystyrene capacitors and a variable air capacitor are used in the GenRad 1412-BC decade capacitance box. The double shielding provides 2-terminal and 3-terminal capacitances that are the same except for the capacitance between the terminals. The variable air capacitor with a linear ΔC of 100 pF and a resolution of better than 1 pF provides continuous adjustment between the 100-pF steps of the smallest decade.

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