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 | TOS-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. bandwidth | 20/40/50MHz | 20/40/50MHz | 20/40/50MHz | 20/40/50MHz | 20/40/50MHz | 100MHz |
Attenuator switch | √ | √ | √ | √ | √ | |
Vertical encoder switch | ||||||
Vertical pulse switch | √ | |||||
Vertical sensitivity step | 10 | 10 | 10 | 10 | 10 | 11 |
High vertical sensitivity | 5mV/DIV | 5mV/DIV | 5mV/DIV | 5mV/DIV | 5mV/DIV | 2mV/DIV |
Low vertical sensitivity | 5V/DIV | 5V/DIV | 5V/DIV | 5V/DIV | 5V/DIV | 5V/DIV |
Sweep encoder switch | √ | √ | √ | √ | √ | |
Sweep pulse switch | √ | |||||
Sweep time base step | 20 | 20 | 20 | 20 | 20 | 22 |
Fastest sweep time | 0.2us | 0.2us | 0.2us | 0.2us | 0.2us | 50ns |
Slowest sweep time | 0.5s | 0.5s | 0.5s | 0.5s | 0.5s | 0.5s |
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 | √ |
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 | |||||||
CRT | ||||||||
Type | 6-inch rectangular with 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%, 50/60Hz, Max. 35VA | |||||||
Accessories | Power cord x1, Operation manual x1, Probe x2 | |||||||
Dimension (WxHxD) | 310x150x455mm | |||||||
Weight | Approx. 8kg |