- 100 pF 국립 연구소 표준
- 작업 표준 교정 용
- 소산 인자 표준
- 또한 10 pF, 1000 pF, 10,000 pF
- 20 ppm/year stability, history has shown this to be a very conservative specification
- Hermetically sealed in dry nitrogen
- ISO-17025 Accredited Calibration Included
- 5 Year Warranty Included
GenRad 1404-B 100pF 표준 커패시터는 계측 실험실에서 선택되는 표준으로 전 세계의 표준기구에서 현재 사용되고 있습니다. 이러한 커패시터는 작동 표준을 비교할 수있는 커패시턴스의 기본 참조 표준으로 설계되었습니다.
GenRad 1404-B 100pF 표준 커패시터 표준 커패시터는 정밀하게 알려진 외부 저항과 함께 방열 계수의 표준이된다
플레이트 어셈블리의 모든 중요 부품은 안정성과 저온 계수를 위해 인바 (Invar)로 만들어졌습니다. 열 순환 및 조정 후에, 어셈블리는 중금속을 함유 한 황동 컨테이너에 장착되고, 배출 후 대기압보다 약간 높은 압력에서 건조 질소로 채워 밀봉됩니다. 컨테이너는 알루미늄 패널에 장착되고 외부 알루미늄 케이스로 보호됩니다. 각 커패시터는 히스테리시스 및 온도 계수를 결정하고 커패시턴스를 안정화시키기 위해 일련의 온도 사이클을 거친다.
기타 모델
GenRad / General Radio 1404-10nF (10.000 pF) 최근 출시
GenRad / 일반 라디오 1404-A (1000 pF) 1 차 표준 커패시터
GenRad / 일반 라디오 1404-B (100 pF) 1 차 표준 커패시터
GenRad / 일반 라디오 1404-C (10 pF) 1 차 표준 커패시터
SPECIFICATIONS
Calibration: A certificate of calibration that is accredited to ISO-17025 by A2LA is supplied with each capacitor, giving the measured direct capacitance at 1 kHz and 23° ±1°C. The measured value is obtained by a comparison to a precision better than ±1 ppm with working standards whose absolute values are known to an accuracy of ±5 ppm, determined and maintained in terms of reference standards periodically measured by the National Institute of Standards and Technology.
Adjustment Accuracy: The capacitance is adjusted before calibration with an accuracy of ±5 ppm to a capacitance about 5 ppm above the nominal value relative to the capacitance unit maintained by the reference standards.
Stability: Long term drift is less than 20 ppm per year. Maximum change with orientation is 10 ppm and is completely reversible.
Temperature Coefficient of Capacitance: 2 ±2 ppm/°C for 1404-A and -B, 5 ±2 ppm/°C for 1404-C, from -20°C to +65°C. A measured value with and accuracy of ±1 ppm/°C is given on the certificate.
Temperature Cycling: For temperature cycling over range from -20°C to +65°C , hysteresis (retraceable) is less than 20 ppm at 23°C.
Dissipation Factor: Less than 10-5 at 1 kHz.
Residual Impedance: See Figure 1 on datasheet for typical values of internal series inductance and terminal capacitance.
Max Voltage: 750 V.
Terminals: Two BNC coaxial connectors (legacy locking G874 coaxial connectors are available). Outer shell of one connector is ungrounded to permit capacitor to be used with external resistor as a dissipation factor standard.
Mechanical: Lab-bench cabinet.
Dimensions: 16.9 cm H x 17.2 cm W x 20.4 cm D (6.63" x 6.75" x 8").
Weight: 3.9 kg (8.5 lb.) net, 6.4 kg (14 lb.) shipping.
Calibration: A certificate of calibration that is accredited to ISO-17025 by A2LA is supplied with each capacitor, giving the measured direct capacitance at 1 kHz and 23° ±1°C. The measured value is obtained by a comparison to a precision better than ±1 ppm with working standards whose absolute values are known to an accuracy of ±5 ppm, determined and maintained in terms of reference standards periodically measured by the National Institute of Standards and Technology.
Adjustment Accuracy: The capacitance is adjusted before calibration with an accuracy of ±5 ppm to a capacitance about 5 ppm above the nominal value relative to the capacitance unit maintained by the reference standards.
Stability: Long term drift is less than 20 ppm per year. Maximum change with orientation is 10 ppm and is completely reversible.
Temperature Coefficient of Capacitance: 2 ±2 ppm/°C for 1404-A and -B, 5 ±2 ppm/°C for 1404-C, from -20°C to +65°C. A measured value with and accuracy of ±1 ppm/°C is given on the certificate.
Temperature Cycling: For temperature cycling over range from -20°C to +65°C , hysteresis (retraceable) is less than 20 ppm at 23°C.
Dissipation Factor: Less than 10-5 at 1 kHz.
Residual Impedance: See Figure 1 on datasheet for typical values of internal series inductance and terminal capacitance.
Max Voltage: 750 V.
Terminals: Two BNC coaxial connectors (legacy locking G874 coaxial connectors are available). Outer shell of one connector is ungrounded to permit capacitor to be used with external resistor as a dissipation factor standard.
Mechanical: Lab-bench cabinet.
Dimensions: 16.9 cm H x 17.2 cm W x 20.4 cm D (6.63" x 6.75" x 8").
Weight: 3.9 kg (8.5 lb.) net, 6.4 kg (14 lb.) shipping.