Twintex Electronics Co., Ltd.  

Product Name: Twintex Tos-2020CT China 20MHz Analog Oscilloscope Component Tester with CRT Model NO.: TOS-2020CT Sampling Rate: 500MSa/s Deeper Memory Depth: No Trigger Modes: Automatic Bandwidth: 20MHz Sampling Mode: Real-time Sampling Application: Voltage Measurement, Time Measurement, Frequency Measurement Structure: Desktop Channel Number: 2 Kind: Analog Oscilloscope Rise Time: Approx. 17.5ns X-Axis Bandwidth: DC~500kHz (-3dB) Trigger Mode: Auto, Norm, TV-V, TV-H Max. Input Voltage: 400V Peak-Peak, AC Frequency?1kHz Vertical Sensitivity: 5mv~5V/Div, 10 Steps in 1-2-5 Sequence CRT Type: 6-Inch Rectangular with Internal Graticule, 8X10di Sweep Time: 0.2us~0.5s/Div, 20 Steps in 1-2-5 Sequence Trademark: Twintex Transport Package: Carton Specification: CE Origin: China HS Code: 90302010 Product Description Twintex TOS-2020CT China 20MHz Analog Oscilloscope Component Tester with CRTFeaturesDual channel 20MHz/40MHz/50MHz10 times sweep magnificationTV synchronization; X-Y modeHigh illumination internal graticule CRTJapanese encoded switch, reliable and durableFully sealed durable attenuation switchALT triggering function, enabling simultaneous observation of two independent signalsSelection guideModelTOS-2020BCHTOS-2040BCHTOS-2050BCHTOS-2020CFTOS-2040CFTOS-2050CFTOS-2020CTTOS-2040CTTOS-2050CTTOS-2020TOS-2040TOS-2050TOS-2020FGTOS-2040FGTOS-2050FGTOS-2100CMax. bandwidth20/40/50MHz20/40/50MHz20/40/50MHz20/40/50MHz20/40/50MHz100MHzAttenuator switch√√√√√Vertical encoder switchVertical pulse switch√Vertical sensitivity step101010101011High vertical sensitivity5mV/DIV5mV/DIV5mV/DIV5mV/DIV5mV/DIV2mV/DIVLow vertical sensitivity5V/DIV5V/DIV5V/DIV5V/DIV5V/DIV5V/DIVSweep encoder switch√√√√√Sweep pulse switch√Sweep time base step202020202022Fastest sweep time0.2us0.2us0.2us0.2us0.2us50nsSlowest sweep time0.5s0.5s0.5s0.5s0.5s0.5sDual 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√SpecificationsModel20MHz40MHz50MHzVertical systemSensitivity5mV~5V/DIV, 10 steps in 1-2-5 sequenceAccuracy≤3%; X5MAG: ≤5%Vernier sensitivity≤1/2.5 of panel indicated valueBandwidthDC~20MHz(X5MAG: DC~7MHz)DC~40MHz(X5MAG: DC~15MHz)DC~50MHz(X5MAG: DC~15MHz)AC coupling<10Hz (at 100kHz, 8DIV, frequency response -3dB)Rise timeApprox. 17.5ns(X5MAG: Approx. 50ns)Approx. 8.75ns(X5MAG: Approx. 25ns)Approx. 7ns(X5MAG: Approx. 23.3ns)Input impedanceApprox. 1MΩ//Approx. 25pFDC balance shift5mV~5V/DIV: ±0.5DIVVertical modeCH1, CH2, DUAL (ALT/CHOP), ADD, CH2 INVChopping repetition frequencyApprox. 250kHzInput couplingAC, GND, DCMax. Input voltage400V peak-peak, AC frequency≤1kHzCommon 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 systemSweep time0.2us~0.5s/DIV, 20 steps in 1-2-5 sequenceAccuracy±3%, X10MAG: ±5% (20ns~50ns/DIV uncalibrated)Vernier sweep time control≤1/2.5 of panel indicated valueSweep magnificationX10 (fastest sweep time 20ns/DIV)Position shift@X10MAG≤2DIV at CRT screen centerLinearity±5%, X10MAG: ±10% (0.2s~1us)Trigger systemTrigger modeAUTO, NORM, TV-V, TV-HTrigger level lockProvidedTrigger sourceCH1, CH2, ALT, LINE, EXTTrigger couplingAC: 20Hz to full bandwidthTrigger slope"+" or "-"SensitivityFrequency20Hz~2MHz2MHz~20MHz20MHz~40MHz40MHz~50MHzCH1, CH21DIV1.5DIV2.5DIV3DIVALT2DIV3DIVEXT200mV800mVTVSync pulse>1DIV (EXT: 1V)External trigger inputInput impedanceApprox. 1MΩ//Approx. 25pFMax. input voltage400V (DC+AC peak), AC frequency≤1kHzX-Y modeSensitivity5mV~5V/DIV±3%X-axis bandwidthDC~500kHz (-3dB)Phase error≤3° at DC~50kHzCH1 signal outputAt least 20 mV/div at 50Ω terminal, frequency at least 50Hz to 50MHzCalibration signal outputWaveformPositive-going square waveFrequencyApprox. 1kHzDuty ratio<48:52Output voltage2Vpp±2%Output impedanceApprox. 1kΩZ-axis inputBandwidthDC~2MHzSensitivity5VppInput impedanceApprox. 47kΩMax. input voltage30V (DC+AC peak), AC frequency≤1kHzFrequency counter (only for TOS-2020FG, TOS-2040FG, TOS-2050FG)Display6 digits LEDAccuracy±0.01%CRTType6-inch rectangular with internal graticule, 8x10DIV (1DIV=1cm)PhosphorP31Accelerating voltageApprox. 2kV (20MHz); Approx. 12kV (40MHz)Trace rotationAdjustable at front panelGeneralPower sourceAC110V/220V±10%, 50/60Hz, Max. 35VAAccessoriesPower cord x1, Operation manual x1, Probe x2Dimension (WxHxD)310x150x455mmWeightApprox. 8kg Specifications are subject to change without prior notice.