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| PM6681R 루비듐 카운터 |
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상기 장비는 타이머 카운터로서 , 사용하기 쉬운 경제적인 장비이며, 높은 정밀도에서의 측정으로 연구소 나 개발용으로 많이 쓰이고 있습니다.
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1. 주파수 A : 0.1 Hz to 160MHz
2. 주파수 B : 0.1 Hz to 16MHz
2. 주파수 C : 70 MHz to 1.3GHz(RF적용)
3. 주파수 분해능 : 7 Digit/s
4. 측정 모드 : 주파수A,B ,펄스폭, 주기 , 듀티사이클, 하강/상승
시간, RPM , 시간격
5. Warm Up Time : 30 분
6. Battery Operating Time : 2 시간
7. 외부기준 입력 : 10 MHz |
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| Frequency Stability Specifications * |
| Aging |
| Per Month: |
5E-11 (After 1 month of continuous operation) |
| Per Year: |
5E-10 (First Year) |
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2E-10 (After First Year) |
| Short Term Allan Variance of Reference Oscillator: |
1s: 1E-10 |
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10s: 3E-11 |
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100s: 1E-11 |
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| Temperature Dependency |
| 0 to 50ºC: |
3E-10 |
| 1 day stability at 25 ± 3ºC: |
4E-11 after 7 days continuous operation |
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| Warm up time (at 25ºC) |
| Unlock status indicated by LED |
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| Time to lock: |
4 minutes |
| Time to reach 1E-9: |
6 minutes |
| Retrace: |
5E-11 |
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Retrace is the relative frequency deviation after 1 hour operation, compared with the previous value, before a switch off period of 24 hours. |
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| Power Requirements (at 25ºC) |
| Voltage |
90 to 264 Vrms, 47 to 440 Hz |
| Power Rating: |
< 100 W for < 4 minutes, < 50 W continuous operation (at 25ºC) |
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| Reference Outputs |
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5 additional 10 MHz reference outputs are available at the rear of the counter |
| Output Level: |
> 0.5 V rms into 50Ω load |
| Wave Shape: |
Sine |
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| Mechanical Data |
| Weight: |
Net is 4.8 kg (10 lb) |
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Shipping is 7.8 kg (16.8 lb) |
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