TWINTEX TOS-2020CF Analog Oscilloscope 20MHz with built-in 6 digits frequency counter

Supplier: Twintex Electronics Co., Ltd.
Region: Guangdong, China
Contact: Ms Lily CHEUNG
Price: $100.00 /piece
Min. Order: 1 piece

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Product details

Channel:	2CH;	Sweep magnification:	10 times;
Bandwidth:	20MHz;	Supply Ability:	2000 Piece/Pieces per Month;
Place of Origin:	China;	Type:	Analog;
Display:	High illumination internal graticule CRT;	Payment Terms:	L/C,T/T,Western Union;
Packaging Detail:	Double-Layer cartons;	Model Number:	TOS-2020CF;
Brand Name:	TWINTEX;	Function:	TV synchronization; X-Y mode; ALT triggering function;
Certificate:	CE;	Port:	SHENZHEN or HONG KONG;
Vertical Sensitivity:	5mV~5V/DIV, 10 steps in 1-2-5 sequence;

TWINTEX TOS-2020CF Analog Oscilloscope 20MHz with built-in 6 digits frequency counter

Features

Dual channel 20MHz/30MHz/40MHz
10 times sweep magnification
TV synchronization; X-Y mode
High illumination internal graticule CRT
Encoded switch, reliable and durable
Fully sealed durable attenuation switch
ALT triggering function, enabling simultaneous observation of two independent signals

Specifications

Model			20MHz		40MHz		50MHz
Vertical system
Sensitivity			5mV~5V/DIV, 10 steps in 1-2-5 sequence
Accuracy			≤3%
Vernier sensitivity			≤1/2.5 of panel indicated value
Bandwidth			DC (AC 10Hz)~20MHz		DC (AC 10Hz)~40MHz		DC (AC 10Hz)~50MHz
AC coupling			<10Hz (at 100kHz, 8DIV, frequency response -3dB)
Rise time			Approx. 17.5ns		Approx. 8.75ns		Approx. 7ns
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			0.2us~0.5s/DIV, 20 steps in 1-2-5 sequence
Accuracy			±3%, X10MAG: ±5% (20ns~50ns/DIV uncalibrated)
Vernier sweep time control			≤1/2.5 of panel indicated value
Sweep magnification			X10 (fastest sweep time 20ns/DIV)
Position shift@X10MAG			≤2DIV at CRT screen center
Linearity			±5%, X10MAG: ±10% (0.2s~1us)
Trigger system
Trigger mode			AUTO, NORM, TV-V, TV-H
Trigger level lock			Not provided
Trigger source			CH1, CH2, ALT, LINE, EXT
Trigger coupling			AC: 20Hz to full bandwidth
Trigger slope			“+” or “-”
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)
Phase error		≤3° at DC~50kHz
Calibration signal output
Waveform			Positive-going square wave
Frequency			Approx. 1kHz
Duty ratio			<48:52
Output voltage			2Vpp±2%
Output impedance			Approx. 1kΩ
Frequency counter (only for TOS-2020CF, TOS-2040CF, TOS-2050CF)
Display			6 digits LED
Accuracy			±0.01%
Component test (only for TOS-2020CT, TOS-2040CT, TOS-2050CT)
Testing subject			Resistor, Capacitor, Coil, Diode, Zener or simple combination of the components
Testing voltage			Approx. 9Vac pp
Testing frequency			50/60Hz
Testing current			Approx. 0.6mA