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Dual Trace Cathode Ray Analog Oscilloscope 20MHz with Frequency Counter

China Dual Trace Cathode Ray Analog Oscilloscope 20MHz with Frequency Counter, Find details about China Oscilloscope 20MHz, Analog Oscilloscope from Dual Trace Cathode Ray Analog Oscilloscope 20MHz with Frequency Counter

Model NO.
TOS-2020CF
Max. Input Voltage
400V Peak-Peak
Vertical Sensitivity
5mv~5V/Div, 10 Steps in 1-2-5 Sequence
Display
CRT
Feature
6-Digit Frequency Counter
Trademark
Twintex
Origin
China
HS Code
90302010
Model NO.
TOS-2020CF
Max. Input Voltage
400V Peak-Peak
Vertical Sensitivity
5mv~5V/Div, 10 Steps in 1-2-5 Sequence
Display
CRT
Feature
6-Digit Frequency Counter
Trademark
Twintex
Origin
China
HS Code
90302010
Dual Trace Cathode Analog Oscilloscope 20MHz with Frequency Counter
Dual Trace Cathode Ray Analog Oscilloscope 20MHz with Frequency Counter
Features
Dual channel 20MHz/40MHz/50MHz
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

Selection guide
ModelTOS-2020BCH
TOS-2040BCH
TOS-2050BCH		TOS-2020CF
TOS-2040CF
TOS-2050CF		TOS-2020CT
TOS-2040CT
TOS-2050CT		TOS-2020
TOS-2040
TOS-2050		TOS-2020FG
TOS-2040FG
TOS-2050FG		TOS-2100C
Max. bandwidth20/40/50MHz20/40/50MHz20/40/50MHz20/40/50MHz20/40/50MHz100MHz
Attenuator switch√√√√√ 
Vertical encoder switch      
Vertical pulse switch     √
Vertical sensitivity step101010101011
High vertical sensitivity5mV/DIV5mV/DIV5mV/DIV5mV/DIV5mV/DIV2mV/DIV
Low vertical sensitivity5V/DIV5V/DIV5V/DIV5V/DIV5V/DIV5V/DIV
Sweep encoder switch√√√√√ 
Sweep pulse switch     √
Sweep time base step202020202022
Fastest sweep time0.2us0.2us0.2us0.2us0.2us50ns
Slowest sweep time0.5s0.5s0.5s0.5s0.5s0.5s
Dual sweep (Dual time base)     √
Time base step auto-shift     √
Trigger signal output     √
CH1 signal output   √√ 
Z-axis input   √√√
Trigger level lock   √√ 
Frequency counter √  √ 
Cursor readout     √
Panel settings save & recall     √
CRT illumination     √
Delayed sweep     √
Component test  √   
 
Model20MHz40MHz50MHz
Vertical system
Sensitivity5mV~5V/DIV, 10 steps in 1-2-5 sequence
Accuracy≤3%
Vernier sensitivity≤1/2.5 of panel indicated value
BandwidthDC (AC 10Hz)~20MHzDC (AC 10Hz)~40MHzDC (AC 10Hz)~50MHz
AC coupling<10Hz (at 100kHz, 8DIV, frequency response -3dB)
Rise timeApprox. 17.5nsApprox. 8.75nsApprox. 7ns
Input impedanceApprox. 1MΩ//Approx. 25pF
DC balance shift5mV~5V/DIV: ±0.5DIV
Vertical modeCH1, CH2, DUAL (ALT/CHOP), ADD, CH2 INV
Chopping repetition frequencyApprox. 250kHz
Input couplingAC, GND, DC
Max. Input voltage400V peak-peak, AC frequency≤1kHz
Common mode rejection ratio>50:1 at 50kHz sine wave (set CH1 and CH2 at same sensitivity)
CH2 INV BALBalanced point variation≤1DIV (referred to graticule center)
Horizontal system
Sweep time0.2us~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 magnificationX10 (fastest sweep time 20ns/DIV)
Position shift@X10MAG≤2DIV at CRT screen center
Linearity±5%, X10MAG: ±10% (0.2s~1us)
Trigger system
Trigger modeAUTO, NORM, TV-V, TV-H
Trigger level lockNot provided
Trigger sourceCH1, CH2, ALT, LINE, EXT
Trigger couplingAC: 20Hz to full bandwidth
Trigger slope"+" or "-"
SensitivityFrequency20Hz~2MHz2MHz~20MHz20MHz~40MHz40MHz~50MHz
CH1, CH21DIV1.5DIV2.5DIV3DIV
ALT2DIV3DIV  
EXT200mV800mV  
TVSync pulse>1DIV (EXT: 1V)
External trigger input
Input impedanceApprox. 1MΩ//Approx. 25pF
Max. input voltage400V (DC+AC peak), AC frequency≤1kHz
X-Y mode
Sensitivity5mV~5V/DIV±3%
X-axis bandwidthDC~500kHz (-3dB)
Phase error≤3° at DC~50kHz
Calibration signal output
WaveformPositive-going square wave
FrequencyApprox. 1kHz
Duty ratio<48:52
Output voltage2Vpp±2%
Output impedanceApprox. 1kΩ
Frequency counter (only for TOS-2020CF, TOS-2040CF, TOS-2050CF)
Display6 digits LED
Accuracy±0.01%
Component test (only for TOS-2020CT, TOS-2040CT, TOS-2050CT)
Testing subjectResistor, Capacitor, Coil, Diode, Zener or simple combination of the components
Testing voltageApprox. 9Vac pp
Testing frequency50/60Hz
Testing currentApprox. 0.6mA
CRT
Type6-inch rectangular with internal graticule, 8x10DIV (1DIV=1cm)
PhosphorP31
Accelerating voltageApprox. 2kV (20MHz); Approx. 12kV (40MHz)
Trace rotationAdjustable at front panel
General
Power sourceAC110V/220V±10%, 50/60Hz, Max. 35VA
AccessoriesPower cord x1, Operation manual x1, Probe x2
Dimension (WxHxD)310x150x455mm
WeightApprox. 8kg

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About Us:
Twintex instrument Ltd was established in 1998 as a professional test & measurement instruments manufacturer with its own brand of twintex.

With honesty, innovation and continuation as the core of enterprise cultural, twintex has been gradually developed into a professional test & measurement instruments manufacturer, products including oscilloscope, function generator, DC power supply, basic test & measurement instruments and other professional instruments.

Apart from providing instrumentation solutions to domestic industries and education institutions with good quality and excellent price, twintex has also established professional logistics and business center - twintex electronics Co., Ltd in 2009 in shenzhen China to explore global market of instrumentation. Backing up by strong R&D force in Taiwan and manufacturing advantage in mainland China, twintex has been entering the world market with twintex brand.

Twintex has presences in more than 30 countries to provide its products and services.

Twintex will make continuous efforts to improve brand management, making twintex as the most reliable and professional instruments manufacturer. Twintex will also improve capabilities of R&D, manufacturing and marketing to provide the most convenient and fastest services, bringing the best values to customers.
Dual Trace Cathode Ray Analog Oscilloscope 20MHz with Frequency Counter

Warranty:

All products by TWINTEX are tested and guaranteed to keep in good quality with one year warranty except wearing parts, such as test leads and power cords.

If quality problems happen during warranty period, we provide technical supports and spare parts. Our local distributor if any will help to solve your problems in time after receiving phone calls or emails.
Welcome to contact us at any time if any questions about using our products.

However, TWINTEX is free of responsibility to personal injuries or property damages caused by improper operation.

Dual Trace Cathode Ray Analog Oscilloscope 20MHz with Frequency Counter

 

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