Specifications

MOS-620CH,20MHz Analog oscilloscope
20MHz Dual Channel
10 times sweep magnification
TV Synchronization,X-Y mode

Features and Benefits:

• High luminance,internal graticule CRT
• Japanese electronic encoder,light,handy and reliable
• Fully sealed long live vertical mode switch
• ALT Triggering Function. Two indepen dent signals
• simultaneous observation
• 20MHz Dual Channel
• 10 times sweep magnification
• TV Synchronization,X-Y mode

 

Specifications

Horizontal System
Sweep time	0.2uSec~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	±5%, xl0MAG:±10%(0.2s and1 s )
Position shift caused by ×10MAG	within 2DIV. At CRT screen center
X-Y MODE
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.);
CALIBRATION VOLTAGE
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	5mV~5V/DIV,10 steps in 1-2-5sequence
Sensitivity accuracy	≤3%
Vernier vertical sensitivity	To 1/2.5 or less of panel-indicated value
Frequency bandwidth	DC~20MHz / DC~40MHz (-3dB)
AC coupling	Low limit frequency 10Hz. (With reference to 100KHz, 8DIV, Frequency response with-3dB.)
Rise time	Approx.17.5ns
Input impedance	Approx.1MΩ/Approx.25pF
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
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
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:1DIV, TRIG-ALT:2DIV EXT:200mV;TRIG-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
EXT triggering signal input Input impedance Max.input voltage	Approx:1MΩ/approx.25pF; 400V (DC+AC peak), AC: Frequency not higher than 1KHz

 

Accessories
Power cord ------------- l
User manua l---------  1
Probes ------------------2