20MHz Dual Channel Analog Oscilloscope

Frequency  bandwidth

DC to at least 500kHz

X-Y phase difference

≤3°at DC~50kHz

Sensitivity

Same as vertical axis.(X-axis:CH1 input signal;Y-axis:CH2 input signal.)

ZAXIS

Sensitivity

5Vp-p(Positive-going signal decreases intensity)

Frequency  bandwidth

DC~2MHz

Input resistance

Approx.47kΩ

Maximum input voltage

30V(DC+AC peak, AC frequency≤1kHz)

CALIBRATION SIGNAL

Waveform

Positive-going  square wave

Frequency

Approx.1kHz

Duty ratio

Within 48:52

Output voltage

2Vp-p±2%

Output impedance

Approx.1kΩ

CRT

Type

6-inch rectangular type,internal graticule

Phosphor

P31

Acceleration voltage

Approx.2kV(20MHz)/Approx.12kv(40MHz)

Effective screen size

8×10DIV[1DIV=10mm(0.39in)]

Graticule

Internal

Trace rotation

Provided

VERTICAL AXIS

Sensitivity accuracy

≤3%(x5 MAG:≤5%)

DC balance shift

5mV~5V/DIV:±0.5DIV,1mV~2mV/DIV±2.0DIV

Bandwidth

DC~20MHz(x5MAG:DC~7MHz)

Linearity

<±0.1DIV of amplitude change when waveform of 2DIV at graticule center is moved   vertically

Vernier vertical sensitivity

continously  variable to 1/2.5 or less of panel-indicated value

Rise time

Approx.17.5ns(x5 MAG: Approx.50nS)

Input impedance

Approx.1MΩ/Approx.25pF

Sensitivity

5mV~5V/DIV,10 steps in 1-2-5sequence

AC coupling

Low limit frequency 10Hz.

(With reference to 100KHz, 8DIV, Frequency response   with-3dB.)

Vertical modes

CH1,CH2,DUAL,ADD

Chopping  repetition frequency

Approx.250kHz

Input coupling

AC,GND,DC

Maximum 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 15MHz/>30:1 at 35MHz/>30:1 at 45MHz

CH1 signal output

At least 20mV/DIV into a 50Ω 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 full bandwidth

SLOPE

+/-

Sensitivity

20Hz~2MHz:0.5DIV,TRIG-ALT:2DIV EXT:200mV;RIG-ALT:3DIV,EXT:800mV

2~20MHz:1.5DIV;20MHz~40MHz:2.5DIV;40MHz~50MHz:3DIV

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)

EXT  triggering signal input

Input impedance/: Approx:1MΩ/approx.25pF

Max.input  voltage

300V(DC+AC peak), AC:Frequency not higher than 1KH

Bandwidth (-3dB)

DC(AC 10Hz)~5MHz

DC: 0~10MHz
AC: 10Hz~10MHz

DC: 0~10MHz
AC: 10Hz~10MHz

DC: 0~20MHz
AC: 10Hz~20MHz

Channel

1

1

1

2

Max.Input Voltage

400V (DC +   ACpeak)

400V (DC +   ACpeak)

400V (DC +   ACpeak)

400V (DC + AC   peak)

Vertical Sensitivity

50mV/DIV ±10%

5mV/DIV~5V/DIV   ±5%

5mV/DIV~5V/DIV   ±5%

5mV/DIV~20V/DIV   ±3%    
  1mV/DIV~2mV/DIV ±5%

Horizontal Scale

10Hz~100KHz

0.1s~0.1μs/DIV   ±5%

0.1s~0.1μs/DIV   ±5%

0.2μs~0.1s/DIV

Input Coupling

AC, DC

AC, DC , GND

AC, DC , GND

AC, DC , GND

Trigger Mode

x

AUTO, NORM, TV

AUTO, NORM, TV,   LOCK

AUTO, NORM, TV,LOCK

Trigger Source

x

INT, LINE, EXT,TV

INT, LINE,   EXT,TV

VERT,INT,CH1,EXT,LIN,TV

X-Y Operation

√

√

√

√

Z-Axis Input

x

x

x

√

CH1 Input

x

x

x

√

Frequency Counter

x

x

x

x

Component Test

x

x

x

x

Automatic    Locking 

Synchronization

x

x

x

x

Model

MOS-620CH

MOS-620

MOS-620CF

MOS-620CT

Bandwidth (-3dB)

DC~20MHz

DC~20MHz

DC~20MHz

DC~20MHz

Channel

2

2

2

2

Max.Input Voltage

400V (DC+AC   peak)

400V (DC+AC   peak)

400V (DC+AC   peak)

400V (DC+AC   peak)

Vertical Sensitivity

5mV~5V/DIV

5mV~5V/DIV

5mV~5V/DIV

5mV~5V/DIV

Horizontal Scale

0.2μs~0.5s/DIV

0.2μs~0.5s/DIV

0.2μs~0.5s/DIV

0.2μs~0.5s/DIV

Input Coupling

AC, DC , GND

AC, DC , GND

AC, DC , GND

AC, DC , GND

Trigger Mode

AUTO,NORM,TV

AUTO,NORM,TV

AUTO,NORM,TV

AUTO,NORM,TV

Trigger Source

CH1,CH2,LINE,EXT,ALT,TV

CH1,CH2,LINE,EXT,ALT,TV

CH1,CH2,LINE,EXT,ALT,TV

CH1,CH2,LINE,EXT,ALT,TV

X-Y Operation

√

√

√

√

Z-Axis Input

x

√

x

x

CH1 Input

x

√

x

x

Frequency Counter

x

x

√

x

Component Test

x

x

x

√

Automatic 

Locking 

Synchronization

x

√

x

x