ADITEG OS620 20MHz

VERTICAL AXIS Sensitivity 5mV~ 5V/ DIV, 10 steps in 1-2-5 sequence ( X5 MAG: 1mV/ DIV) Sensitivity accuracy d3% ( × 5MAG: d5% ) Vernier vertical sensitivity continuously variable to 1/ 2.5 or less of panel-indicated value Frequency bandwidth DC-20MHz ( × 5MAG: DC-7MHz) DC-40MHz ( × 5MAG: DC-15MHz) AC coupling Low limit frequency 10Hz. ( With reference to 100KHz, 8DIV.Frequency response with-3dB) Rise time Approx.17.5Ns ( × 5MAG: Approx.50Ns) / 9.5nS ( X5MAG: Approx.25nS) Input impedance Approx. 1M ohm/ / Approx. 25pF Square wave characteristics Overshoot: d5% ( At 10Mv/ DIV range) other distortions and other ranges: 5% added to the above value DC balance shift: 5mV~ 5V/ DIV; ± 0.5 DIV, 1mV~ 2mV/ DIV± 2.0DIV Linearity: d ± 0.1DIV of amplitude change when waveform of 2 DIV at graticule center is moved vertically. Vertical modes CH1 single channel. CH2 single channel DUAL CH1 and CH2 are displayed ALT or CHOP selectable at any sweep rate. ADD CH1+ CH2 algebraic addition Chopping repetition frequency Approx.250KHz Input coupling AC, GND , DC Maximum input voltage 300V peak ( AC: frequency 1KHz or lower) When set probe switch at 1: 1, the maximum effective readout is 40Vp p( 14Vrms at sine wave) ; or set probe switch at 10: 1, the maximum effective readout is 400Vpp( 140Vrms at sine wave) 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 50 MHz;  30: 1 at 20MHz;  30: 1 at 40MHz CH1 signal output At least 20Mv/ DIV into a 50 ohm termination, Bandwidth is 50Hz to at least 5MHz. CH2 INV BAL Balanced point variation: d1DIV( Reference at center graticule) HORIZONTAL AXIS Sweep time 0.2¼ Sec-0.5Sec/ DIV, 20Steps in 1-2-5sequence Sweep time accuracy ± 3% Vernier sweep time control d1/ 2.5 of panel-indicated value Sweep magnification 10 times × 10MAG sweep time accuracy ± 5% ( 20nsec-50nsec are uncalibrated) Linearity ± 3% , × 10MAG: ± 5% ( 20ns and 50ns are uncalibrated) Position shift caused by× 10MAG Within 2 DIV, at CRT screen center TRIGGERING Triggering source CH1, CH2, LINE, EXT Coupling AC: 20Hz to full bandwidth Slope + / - Sensitivity 20Hz-2MHz: 1.0 DIV, TRIG-ALT: 2DIV, EXT: 200Mv; 2MHz-20MHz: 1.5DIV; 20MHz or higher: 2.0DIV TRIG-ALT: 3DIV, EXT: 800mv TV Sync pulse more than 1 DIV ( EXT: 1V) Triggering modes AUTO; NORM; TV-V; TV-H. ( Both TV-V and TV-H synchronize only when the synchronizing signal is negative) Input impedance Approx: 1M ohm/ / approx.25pF Max input voltage 300V( DC+ AC peak) , AC: frequency not higher than 1KHz X-Y MODE Sensitivity Same as vertical axis.( X-axis: CH1 input signal, Y-axis: CH2 input signal) Frequency bandwidth DC to at least 500KHz X-Y phase difference d3° at DC-50KHz Z AXIS Sensitivity 5Vp-p ( positive-going signal decreases intensity) Frequency bandwidth DC-2MHz Input resistance Approx. 47k ohm Maximum input voltage 30V ( DC+ AC peak, AC frequency d1KHz) CALIBRATION VOLTAGE Waveform positive-going square wave Frequency Approx, 1KHz Output voltage 2Vp-p ± 2% Output impedance Approx, 1K ohm CRT Type 6-inch rectangular type, internal graticule Phosphor P31 Acceleration voltage approx 2KV Effective screen size 8x10 DIV( 1 DIV= 10mm( 0.39in) ) Graticule Internal Trace rotation provided