EDUCATIONAL TRAINING SYSTEMS

Model: LE-7328

20MHz CATHODE RAY OSCILLOSCOPE

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FEATURES:

  • 20MHz Dual Channels
  • High Sensitivity 1mV/DIV
  • Z Axis Input
  • ALT Triggering Function. Two independentsignalssimultaneous observation
  • Triggering Level Loch Function, Automatic Synchronize Function
  • . Cursor Readout Function, Measure Δ V, Δ T, 1/Δ T
  • High luminance, internal graticule Toshiba CRT
  • Pulse encoder switch
  • Adjustable cursor function, Easy to operator
  • Sensitivity 5mV~5V/div, 10 steps in 1-2-5 sequence
  • Sensitivity Accuracy ≤3%(*5 MAG: ≤5%)Vernier vertical Sensitivity; Continuously variable to 1/2.5 or less of panel-indicated value Frequency
  • Bandwidth DC~20MHz(*5 MAG: DC~7MHz) AC Coupling: Low limit frequency 10Hz. (With reference to 100Kz, 8DIV. Frequency response with-3dB)
  • Rise Time Approx: 17.5ns(*5 MAG: 50ns)
  • Input Impedance Approx: 1MΩ/25pF
  • Square wave characteristics: Overshoot: ≤5%(At 10mV/div range)
  • DC Balance Shift 5mV~5V/div: ± 0.5DIV, 1mV~2Mv/DIV ± 2.0DIV
  • Linearity <± 0.1DIV of amplitude change when waveform of 2DIV at graticule center is moved vertically.
  • Chopping repetition Frequency: Approx...250kHz
  • Maxmum Input Voltage: 300Vpeak(AC: Frequency 1kHz or lower)
  • Common mode rejection ratio: 50: 1 or better at 50kHz sinusoidal wave(When sensitivities of CH1 and CH2 are set equally)
  • Isolation between channels(At 5mv/DIV range) >1000: 1 at 50kHz; >30: 1 at 20MHz
  • Sweep time: 0.2uSec~0.5Sec/DIV, 20steps in 1-2-5 sequence
  • X-Y MODE: Frequency bandwidth: DC to atleast 500kHz and X-Y phase difference: ≤30 at DC~5kHz
  • Triggering source: CH1, CH2, LINE, EXT
  • Coupling: AC: 20Hz to full bandwidth
  • Sensitivity: 20Hz~2MHz: 0.5DIV
  • Triggering modes: AUTO; NORM; TV-V; TV-H; (Both TV-V and TV-H synchronize only when the synchronizing signal is negative)
  • Max. Input voltage: 300V(DC+AC peak), AC: Frequency not higher than 1kHz
  • Voltage: Fixed AC220V± 10% or 110/220V± 10% selectable and Frequency: 50/60Hz

 

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