Product Main

Specifications

Standard model with CRT readout function
TOS-2026 / 2048 / 2058
 
Features

Dual channel 20MHz/40MHz/50MHz
Pulse encodor switch
Adjustable cursor function, easy to operate
Visible coordinate measurement method

Built-in 1000:1 attenuator, expanded vertical sensitivity to 10V~20V/DIV

Cursor readout function, measuring ΔV; ΔT, 1/ΔT, F, P (X, Y)
Frequency display
High sensitivity 1mV/DIV
Z-axis modulation input, CH1 signal output

10 times sweep magnification

TV synchronization, X-Y mode

High illumination internal graticule CRT

Fully sealed durable attenuation switch

ALT triggering function, enabling simultaneous observation of two independent signals

Trigger level lock function, Auto synchronize function
 
 
Specifications
MODEL
TOS-2026
TOS-2048
TOS-2058
Vertical system
Sensitivity

5mV~20V/DIV, 10 steps in 1-2-5 sequence
Sensitivity accuracy

≤3%; X5MAG: ≤5%
Vernier sensitivity
1/2.5 or less than panel indicated value
Bandwidth
DC~20MHz

(X5MAG: DC~7MHz)
DC~40MHz

(X5MAG: DC~15MHz)
DC~50MHz

(X5MAG: DC~15MHz)
AC coupling

<10Hz (at 100kHz, 8DIV, frequency response -3dB)
Rise time
Approx.17.5ns
(X5MAG: Approx.50ns)
Approx.8.75ns
(X5MAG: Approx.25ns)
Approx.7ns
(X5MAG: Approx.23.3ns)
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

300V 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)
CH1 signal output
Min. 20mV/DIV (50Ω output bandwidth 50Hz~5MHz)
Horizontal system
Sweep time base
0.2us~0.5s/DIV, 20 steps in 1-2-5 sequence

Sweep time base accuracy
±3%, X10 MAG: ±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)
Trigger system
Trigger mode
AUTO, NORM, TV-V, TV-H
Trigger level lock
Provided

Trigger source

CH1, CH2, LINE, EXT

Trigger coupling

AC: 20Hz to full bandwidth
Polarity

“+” or “-” polarity
Sensitivity
 
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 output signal
Input impedance: Approx.1MΩ//Approx.25pF
Max. input voltage: 300V (DC+AC peak), AC≤1kHz
Z-axis
Sensitivity
5Vp-p
Bandwidth
DC~2MHz
Input impedance
Approx.47kΩ
Max. input voltage

30V (DC+AC peak, AC frequency≤1kHz)
Calibration signal
Waveform

Positive-going square wave
Frequency
Approx.1kHz
Duty ratio
<48:52

Output voltage
2Vp-p ±2%

Output impedance
Approx.1kΩ
X-Y mode
Sensitivity
5mV~5V/DIV, ±3%
Bandwidth

DC~500kHz (-3dB)

X-Y phase error

≤3°at DC~50kHz

Cursor measurement
Cursor measurement function

ΔV, ΔT, 1/ΔT, F, P (X, Y)
Cursor resolution
1/25DIV
Effective cursor range

Vertical: ±3DIV, Horizontal: ±4DIV
Panel setting display
V/DIV, AC/DC/GND, CH1, CH2, INV, ALT, CHOP, ADD, UNCAL
X10MAG, probe factor (X1/X10), X-Y, AT/D, TV-V/H
CRT
Mode

6" rectangle, internal graticule
Display area
8×10DIV (1DIV=1cm)
Phosphor
P31

Accelerating voltage
Approx.2kV

Trace rotation
Adjustable at front panel
General
Power source

AC110V/220V±10%, 50/60Hz, Max.35VA
Dimension
310×150×455mm
Accessories

Power cord ×1, Operation manual ×1, Probe ×2
Weight
Approx.8kg