Precision Frequency Counter 0.01Hz-2.4GHz เครื่องวัดความถี่

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It is a frequency counter that measures signals over a wide range of 0.01 Hz to 2.4 GHz. Equipped with gate time that is continuously varying from 100ms to 10s and a maximum power consumption of only 5W.

All functions depend on a single CPU. It has a crystal-controlled temperature circuit that provides a constant compensation for temperature change, reduces the measurement errors. Its channel B (CH.B) input provides an attenuator (x1, x20) and an AC/DC coupling.

FEATURES:

With 3 steps function selection: work state, unit & 8-digit LED display
Provides frequency measurement from 0.01Hz to 2.4GHz
Provides cyclic measurement range from 0.5ms to 10s
With attenuation of 20dB and input impedance of 1MO
With frequency, period and equal-precision measurement
The machine can switch from 110V to 220V (vise versa)
Maximum power consumption is only 5W

SPECIFICATIONS:

8 digit LED display
3 step function selections
Channel B (CH. B) input has an attenuator (x1, x20)
AC/DC coupling for low-pass filter
All functions depend on a single CPU
Crystal-controlled temperature circuit
2 Input Channels : Channel A for 0.01 Hz to 50 MHz ; Channel B for 50 MHz to 2.4 GHz
Channel A (0.01Hz to 50 MHz)
- Frequency range : DC couple 0.01 Hz to 100 Hz ; AC couple 100 Hz to 50 MHz
- Sensitivity :
  - "DC" 0.01 Hz - 1 Hz = 500m Vp-p , 1 Hz - 100Hz = 80m Vrms
  - "AC" 100 Hz - 50 M Hz = 80m Vrms
- Input impedance : 1 MΩ
Channel B (50 MHz to 2.4 GHz)
- Frequency : 50 MHz - 2.4 GHz
- Sensitivity :
  - 50 MHz - 1.2 GHz = 80m Vrms
  - 1.2 GHz - 2.4 GHz > 80m Vrms
- Coupling : AC only
- Input Impedance : 50Ω
Resolution depends on gate time control setting
Time base:
- Short time stability : ± 3 x 10-9 per second
- Long time stability : ± 2 x 10-8 per mon
- Temperature drift coefficient : ± 1 x 10-7, 10°C - 40°C
- Line voltage variation : ± 1 x 10-7 for line voltage ± 10
Gate Time : Continuously variable from 100ms to 10s
Precision : standard time error (t) x frequency (f) ±1d
Power supply : 110V & 220V
Power cord (Available for US, UK, Australian & European system)
Preheat time : 20 minutes
Operating environment : 0°C - 50°C, 10 - 90% R.H.
Dimension : approx. 270 x 215 x 100 mm
Weight : approx. 1.6 kg