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
★ With component test function
Specfications
Model | TOS-2020CT | TOS-2040CT | TOS-2050CT | |||||
Vertical system | ||||||||
Sensitivity | 5mV~5V/DIV, 10 steps in 1-2-5 sequence | |||||||
Sensitivity accuracy | ≤3% | |||||||
Verniersensitivity | 1/2.5 or less than panel indicated value | |||||||
Bandwidth | DC (AC 10Hz)~20MHz | DC (AC 10Hz)~40MHz | DC (AC 10Hz)~50MHz | |||||
AC coupling | ||||||||
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 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 | Not 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 | ||||||||
Calibration signal | Waveform | Positive-going square wave | ||||||
Frequency | Approx. 1kHz | |||||||
Duty ratio | <48:52 | |||||||
Output voltage | 2Vpp±2% | |||||||
Output impedance | Approx. 1kΩ | |||||||
Component test | ||||||||
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 | ||||||||
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 Component test lead x1 (only for TOS-2020CT, TOS-2040CT, TOS-2050CT) | |||||||
Dimension | 310x150x455mm | |||||||
Weight | Approx.8kg |