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Twintex TOS-2020 20 MHz Analog Oscilloscope

Product Information

Manufacturer: Twintex
Model: TOS-2020
Warranty: 12 months

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Description

★ Dual channel 20MHz/40MHz/50MHz

★ 10 times sweep magnification

★ TV synchronization; X-Y mode

★ High illumination internal graticule CRT

★ Japanese encoded switch, reliable and durable

★ Fully sealed durable attenuation switch

★ ALT triggering function, enabling simultaneous observation of two independent signals

★ Trigger level lock function; Auto synchronize function

Specfications

Model		TOS-2020		TOS-2040		TOS-2050
Vertical system
Sensitivity		5mV~5V/DIV, 10 steps in 1-2-5 sequence
Sensitivity accuracy		≤3%; X5MAG: ≤5%
Verniersensitivity		1/2.5 or less than panel indicated value
Bandwidth		DC~20MHz (X5MAG: DC~7MHz)		DC~40MHz (X5MAG: DC~15MHz)		DC~50MHz (X5MAG: DC~15MHz)
AC coupling
Rise time		Approx. 17.5ns (X5MAG: Approx. 50ns)		Approx. 8.75ns (X5MAG: Approx. 25ns)		Approx. 7ns (X5MAG: Approx. 23.3ns)
Input impedance		Approx. 1MΩ//Approx. 25pF
DC balance shift		5mV~5V/DIV: ±0.5DIV
Vertical mode		CH1, CH2, DUAL (ALT/CHOP), ADD, CH2 INV
Chopping repetition frequency		Approx. 250kHz
Input coupling		AC, GND, DC
Max. Input voltage		400V peak-peak, AC frequency≤1kHz
Common mode rejection ratio		>50:1 at 50kHz sine wave (set CH1 and CH2 at same sensitivity)
CH2 INV BAL		Balanced point variation≤1DIV (referred to graticule center)
Horizontal system
Sweep time base		0.2us~0.5s/DIV, 20 steps in 1-2-5 sequence
Sweep time base accuracy		±3%, X10MAG: ±5% (20ns~50ns/DIV uncalibrated)
Vernier sweep time base		≤1/2.5 of panel indicated value
Sweep magnification		X10 (Max. sweep time base 20ns/DIV)
Position shift caused by X10MAG		Within 2DIV at CRT screen center
Linearity		±5%, X10MAG: ±10% (0.2s~1us)
Triggersystem
Trigger mode		AUTO, NORM, TV-V, TV-H
Trigger level lock		Provided
Trigger source		CH1, CH2, LINE, EXT
Trigger coupling		AC: 20Hz to full bandwidth
Polarity		“+” or “-” polarity
Sensitivity	Frequency	20Hz~2MHz	2MHz~20MHz		20MHz~40MHz		40MHz~50MHz
	CH1, CH2	1DIV	1.5DIV		2.5DIV		3DIV
	ALT	2DIV	3DIV
	EXT	200mV	800mV
	TV: Sync pulse>1DIV (EXT: 1V)
External trigger input		Input impedance: Approx. 1MΩ//Approx. 25pF Max.input voltage: 400V (DC+AC peak), AC frequency≤1kHz
X-Y mode
Sensitivity		5mV~5V/DIV, ±3%
X-axis bandwidth		DC~500kHz (-3dB)
X-Y phase error		≤3° at DC~50kHz
Output signal
CH1 signal		Min.20mV/DIV (50Ω output bandwidth 50Hz~5MHz)
Calibration signal	Waveform	Positive-going square wave
	Frequency	Approx. 1kHz
	Duty ratio	<48:52
	Output voltage	2Vpp±2%
	Output impedance	Approx. 1kΩ
Z-axis input
Sensitivity		5Vpp
Bandwidth		DC~2MHz
Input impedance		Approx. 47kΩ
Max. input voltage		30V (DC+AC peak), AC frequency≤1kHz
CRT
Display		6″ rectangle, internal graticule, 8x10DIV (1DIV=1cm)
Phosphor		P31
Accelerating voltage		Approx. 2kV (20MHz); Approx. 12kV (40MHz)
Trace rotation		Adjustable at front panel
General
Power source		AC110V/220V±10% selectable, 50/60Hz, Max.35VA
Accessories		Power cord x1, Operation manual x1, Probe x2
Dimension		310x150x455mm
Weight		Approx.8kg

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