상기 장비는 주파수 카운터로서 , 사용하기 쉬운 경제적인 장비입니다. 높은 정밀도에서의 측정으로 연구소 및 개발용으로 많이 쓰이고 있습니다.
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
Frequency Stability Specifications *
Aging
Per Month:
5E-11 (After 1 month of continuous operation)
Per Year:
5E-10 (First Year)
2E-10 (After First Year)
Short Term Allan Variance of Reference Oscillator:
1s: 1E-10
10s: 3E-11
100s: 1E-11
Temperature Dependency
0 to 50ºC:
3E-10
1 day stability at 25 ± 3ºC:
4E-11 after 7 days continuous operation
Warm up time (at 25ºC)
Unlock status indicated by LED
Time to lock:
4 minutes
Time to reach 1 x 10E-9:
6 minutes
Retrace:
5E-11
Retrace is the relative frequency deviation after 1 hour operation, compared with the previous value, before a switch off period of 24 hours.
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)
