MDS-620 Anolog Oscilloscope

Vertical system

• Verticals resolution: 8bits (28point/DIV)
• Accuracy: ± 3% ± 0.4mm ( × 5MAG: ± 5% ± 0.4mm)
• Equivalent bandwidth: ± 3% ± 0.4mm( × 5MAG: ± 5% ± 0.4mm) -3dB, Sine Interpolate
• Interpolation: Sine/Line
• Horizontal System
• Maximum Sample Rates: 20MS/s
• Horizontal resolution: 10bit (100point/DIV)
• Time base: 0.2 μ s/DIV~10s/DIV ( × 10MAG:1s/DIV~20ns/DIV)
• Sweep mode: AUTO, NORM, ROLL.
• Saved waveform expand rate: Maximum 100
• Trigger
• Trigger preset: DIV2, 5, 8
• Acquisition
• Dual Channel Acquisition:
• 10s/DIV~0.5 μ s/DIV:CHOP; 0.2ms/DIV~0.2 μ s/DIV: ALT
• Acquisition Length: 1024Byte/CH
• Display
• View time: 0.2s~5s Adjustable
• Display Memory Length: 1024Byte/CH
• Reference Memory Length: 1024Byte/CH
• RS232 interface transfer rate: 19200
• VERTICAL AXIS
• Sensitivity: 5mV~5V/DIV,10 steps in 1-2-5 sequence
• Sensitivity accuracy: ≤ 3% （ × 5 MAG: ≤ 5% ）
• Vernier vertical sensitivity: To 1/2.5 or less of panel-indicated value
• Frequency bandwidth: DC~20MHz( × 5MAG:DC~7MHz); AC coupling:Low limit frequency 10Hz.(With reference to 100KHz, 8DIV. Frequency response with-3dB.)
• Rise time: Approx.17.5ns ( × 5MAG:Approx.50ns)
• Input impedance: Approx.1M Ω /Approx.25pF
• Square wave characteristics: Overshoot: ≤ 5%(At 10mV/DIV range); Other distortions and other ranges:5% added to the above value
• Dc balance shift: Adjustable on panel
• Linearity: ≤± 0.1DIV of amplitude change when waveform of 2DIV at graticule center is moved vertically
• Vertical modes:
• CH1 single channel; CH2 single channel;
• DUAL: CH1 and CH2 are displayed simultaneously. 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: 300Vpeak (AC: frequency 1KHz or lower);When set probe switch at 1:1, the maximum effective readout is 40Vpp(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 50KHz;
• ＞ 30:1 at 20MHz
• CH1 signal output: At least 20mV/DIV into a 50 Ω termination. Bandwidth is 50Hz to at least 5MHz
• CH2 INV BAL: Balanced point variation: ≤ 1DIV(Reference at center graticule)
• TRIGGERING
• Triggering source: CH1, CH2, LINE, EXT
• Coupling: AC: 20Hz to 20MHz
• Slope: +/-
• Sensitivity: 20Hz~2MHz: 0.5DIV, TRIG-ALT:2DIV, EXT:200mV; 2~2MHz:1.5DIV TRIG-ALT:3DIV, EXT:800mV;
• TV: Sync pulse more than 1DIV (EXT:1V)
• Triggering modes: AUTO; NORM: TV-V: TV-H: (Both TV-V and TV-H synchronize only when the synchronizing signal is negative)
• EXT triggering signal input: Input impedance/: Approx:1M Ω /approx.25pF; Max.input voltage 300V(DC+AC peak), AC: Frequency not higher than 1KHz
• HORIZIONTAL AXIS
• Sweep time: 0.2 μ Sec~0.5Sec/DIV, 20steps in 1-2-5 sequence;
• Sweep time accuracy: ± 3%; Vernier sweep time control: ≤ 1/2.5 of panel-indicated value;
• Sweep magnification: 10 times; × 10MAG sweep time accuracy: ±5 %(20nSec~50nSec are uncalibrated);
• Linearity: ± 3%, × 10MAG: ±5 %(20nSec~50nSec are uncalibrated);
• Position shift caused by × 10MAG: Within 2DIV. at CRT screen center
• 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: ≤ 3°at DC-50KHz
• Z AXIS
• Sensitivity: 5Vp-p (Positive-going signal decreases intensity);
• Frequency bandwidth: DC~2MHz; Input resistance: Approx.47K Ω ;
• Maximum input voltage:3V(DC+AC peak, AC frequency ≤ 1KHz)
• CALIBRATION VOLTAGE
• Waveform: Positive-going square wave;
• Frequency: Approx.1KHz; Duty ratio: Within 48:52; Output voltage: 2Vp-p ± 2%;
• Output impedance: Approx.1K Ω
• CRT
• Type: 6-inch rectangular type, internal graticule; Phosphor: P31;Acceleration voltage: Approx.2KV; Effective screen size: 8 × 10DIV(1DIV=10mm(0.39in)); Graticule: Internal; Trace rotation: Provided