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模擬示波器（臺(tái)式）

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型號(hào):EZ1OS5020G 20MHz, 2Ch, Dual trace, 1MHz function generator DC to 20MHz bandwidth, 2 channels, Dual trace 6“rectangular CRT with internal graticule Variable hold-off for observation of wave forms with complex periods Vertical deflection magnification X 5 Sensitivity 1mV/div ALT triggering function in VERT mode CH2 polarity inversion switch High sensitivity X?Y mode Sweep magnification (X 5) TV sync. Separator circuit for stable TV signal observation 250V maximum input voltage Built-in 1MHz function generator with TTL output CRT - Configuration and useful screen : 6 inch rectangular screen with internal graticule, 8X10div. (1div = 1cm) marking for measurement of rise time, 2mm subdivisions along the central axis. - Acceleration potential : +1.9kv approx.(ref. Cathode) - Phosphor : P31 - Focusing : provided - Trace rotation : provided - Intensity control : provided VERTICAL DEFLECTION - DC coupled(-3dB) : DC to 20MHz normal / DC to 7MHz magnified (X 5) - AC coupled(-3dB) : 10Hz to 20MHz normal / 10Hz to 7MHz magnified (X 5) - Modes : CH1, CH2, ADD, DUAL (CHOP : Time/div. switch from 0.2s to 5ms, ALT : Time/div. switch from 2ms to 0.2μs) - Deflection factor (normal) : 5mV/div. to 5V/div. in 10 calibrated steps of 1-2-5 sequence. Continuously variable between steps at least 1:2.5 X 5. - Deflection factor (5MAG) : 1mV/div. to 4V/div. in 10 calibrated steps. - Accuracy : normal ±3%, magnified : ±5% - Input impedance : approx. 1MΩ in parallel with 25pF - Maximum input voltage : direct 250V (DC + peak AC) - Input coupling : AC, GND, DC - Rise time : 17.5ns or less (50ns or less in 5MAG) - CH1 output : 20mV/div. into 50Ω / DC to 10MHz(-3dB) - Polarity inversion : CH2 only HORIZONTAL DEFLECTION - Sweep mode : X-Y, x1, x10 - Time base A : 0.2μs/div. to 0.2s/div. in 19 calibrated steps of 1-2-5 sequence uncalibrated continuous control between steps at least 1:2.5 - Hold-off time : variable with hold-off control - Sweep magnification : 10 times(maximum sweep rate : 20ns/div.) 50ms/div. off A time base are uncalibrated - Accuracy : ±3%(0℃~ 50℃), ±5%(additional error for magnifier : ±2%) TRIGGER SYSTEM - Modes : AUTO, NORM, TV-V, TV-H - Source : CH1, CH2, LINE, EXT - Coupling : AC - Slope : + or - - Sensitivity and frequency in AUTO, NORM 20HZ - 2MHz : 0.5div. in INT / 0.2Vp-p in EXT - Sensitivity and frequency in AUTO, NORM 2Hz - 20MHz : 1.5div.in INT / 0.6Vp-p in EXT - TV-V, TV-H : at least 1div. or 1.0Vp-p - External trigger input impedance : 1MΩ in parallel with approx. 30pF - Maximum input voltage : 250V (DC + AC peak) X-Y OPERATION - Sensitivity : same as vertical deflection for both X-axis(CH1) and Y-axis(CH2) except accuracy ± 5% in X-axis - X-axis bandwidth : DC to 500kHz (-3dB) - X-Y phase difference : 3° or less as DC to 50kHz CALIBRATOR - Probe adjustment : approx. 1kHz frequency, 0.5V(±3%) square wave with 50% duty ratio FUNCTION GENERATOR - Test voltage : approx. 4.5mVrms(open circuit) - Test current : max. 6.6mArms(short circuit) - Test frequency : approx. 60Hz POWER SUPPLY - Line voltage range : 100V(90-110V) with 250V 2A fuse, 120V(108-132V) with 250V 2A fuse, 220V(198-242V) with 250V 1A fuse or 230V(216-250V) with 250V 1A fuse - Line frequency : 50/60Hz - Power consumption : approx. 50W PHYSICAL CHARACTERISTICS - Weight : 7.4kg - Dimension : 320mm(W) X 140mm(H) X 430mm(L) OTHERS - Accessories including : Operation manual, Spare fuse, Power cord - Optional accessories (sold separately) : Probe

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