25MHz Frequency Counter   Model FC25
  
     
 
Features  
  • Micro-Controller Based Design
  • Self Test for Diagnosis
  • Reciprocal Counting for High Resolution at Low Frequencies
  • 16 x 2 Alpha Numeric LCD Display
  • Wide Frequency Range 5Hz to 25MHz
  • High Sensitivity
  • Low Pass Filter for Noisy Low Frequency Input
  • 20dB Input Attenuator
  • Display Hold Facility
  • Hardware Reset Control

Technical Specifications 
Display 16x2 line Alpha Numeric LCD Display.
Gate Time 10mS, 100mS, 1Sec, 10Sec selectable.
Accuracy ±(resolution ± time base error).
Channel A  
Frequency Range 5Hz to 25MHz.
Input Impedance 1Mohm || 50 pF.
Sensitivity <50mVrms (15mVrms typically ).
Coupling AC or DC switchable.
Filter 100KHz LPF, switchable.
Attenuator 0 & 20dB, switchable.
Resolution 100nHz to 10Hz (7 digit on 1Sec Gate Time).
Time Base  
Frequency 10MHz.
Stability 100PPM.
Power Source 115V / 230V ±10%, 50 / 60 Hz AC.
 

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