50MHz-1.5GHz Frequency Counter

• Built-in CMOS gate array
• Fast, high-resolution, 8-digit green LED display
• Microprocessor controlled
• Reciprocal technique for low frequency resolution
• Self diagnosis routine
• Total, RPM, period function
• INT/EXT time base selectable
• Low pass filter (100kHz - 3dB)
• AC/DC coupling
• Attenuator (10:1)
• Universal functions: Slope, Trigger, Time Interval measurement, Ratio measurement

 - Display                         : 9 digit large green LED display(Overflow, gate time, mHz, Hz,                                      kHz, MHz, ns, µs, s, hold) - Range                           : 0.1Hz ~ 1.5GHz - Gate time                       : 0.01s, 0.1s, 1s, 10s - Resolution                      : 1nH ~ 10Hz - Accuracy                        : ± resolution ± time base ±1 count 

   - Terminal                        : A, C - Sensitivity                     : 20mVrms A, B input / 30mVrms C input - Impedance                       : 1MΩ < 40pF A, B input / 50Ω C input - Max. voltage                    : 250Vrms A, B input / 3Vrms C input - Attenuator                      : X 1, X 10 A, B input - Slope A, B                      : + or - selectable - Trigger A                       : preset or variable - Low pass filter                 : 100kHz(-3dB) A, B input 

 - Period                          : 10ms ~ 10s range with 1ps ~ 1ns resolution / ± resolution ± trigger                                      error ±1 count accuracy - Totalize                        : 5Hz ~ 30MHz range / 0 ~ 999999999(Max) - RPM                             : 6 ~ 900 X 10↑6 RPM 

 - Internal time base              : 10MHz TCO frequency, 3 X 10↑-7/ month,                                     under 5 X 10↑-6 (0 + 50°)                                       temperature stability, under 1 X 10↑-7for 10% variation                                      line voltage - Frequency output                : 10MHz frequency / 2.5Vp-p amplitude / 500Ω impedance - External input                  : 10MHz frequency / 20mVrms ~ 5Vrms input level / 500Ω impedance  

 - Operating environments          : 0°C ~ 50°C - Range for guaranteed            : 25°C ± 5°C - Power requirement               : AC 115 / 230V ±10%, 50/60Hz - Dimension                       : 255mm(W) X 80mm(H) X 260mm(D) - Accessories                     : power cord, fuse, operation manual, BNC cable - Factory optional selection      : RS-232C interface / TCXO