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Global Specialties 2020A Oscilloscope
Click image to enlarge
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Features:
- Bandwidth DC to 20 MHz
- Dual Channels
- High sensitivity 1mV/div
- Vertical deflection magnification x5
- CH2 polarity inversion
- Sweep magnification x10
- TV-V/TV-H sync. triggering
- Alternate triggering
- X-Y mode operation
- Z-Axis intensity modulation
- User friendly designed panel
- Easy to operate
- Reliable performance
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Wide Bandwidth and High Sensitivity Vertical-axis sensitivity is continuously switchable
from 5mV/div to5V/div (DC-20MHz) using an attenuator. When using x5 MAG, the 1mV/div sensitivity (DC-7MHz) is extremely powerful
in measuring complex, low-level signals.
Instantly Selectable TV-V/TV-H Sync.
Vertical and horizontal video signals can be instantly observed, instantly via stable trigger adjustment.
Z-Axis Input
Intensity modulation capability permits time or frequency markers to be added. Trace blank with positive signal, TTL compatible.
Channel 1 Signal Output
The CH1 signal with a voltage of approximately 20mV/div of graticule is delivered by simply connecting a frequency counter to its output. This permits it to perform frequency measurement of low-level signals while observing them on the CRT screen.
Alternate Triggering
Triggering for each channel is stable when observing two waveforms at different frequencies.
High Sensitivity X-Y Operation
Vertical-axis sensitivity is continuously switchable from 5mV/div to5V/div (DC-20MHz) using an attenuator. When using x5 MAG, the 1mV/div sensitivity (DC-7MHz) is extremely powerful in measuring complex, low-level signals.
High Speed Sweep
The sweep time can be continuously switched from 0.5S/div to 0.2µS/div. In addition, sweep expansion (x10MAG) can be used to infinitely expand the sweep tenfold, enabling detailed observation of the desired portion of complex waveforms
High Intensity, 6" Rectangular CRT
2KV acceleration, internal graticule (with % scale)
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| Model |
Description |
List Price |
Sale Price |
| 2020A |
20 MHz DUAL CHANNEL OSCILLOSCOPE - Discontinued - no replacement |
Specifications:
CRT:
Type: 6-inch rectangular type, internal graticule, % scale
Effective area: 8x10 div. (1 div. = 10 mm)
Acceleration voltage: Approx. 2 kV.
INTEN and FOCUS: Front panel control
Trace rotation: Inclined display due to terrestrial magnetism is adjustable at the front panel
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HORIZONTAL DEFLECTION:
Sweep time: 0.2 µ S~0.5S/DIV ± 3%, 20 steps selectable in 1-2-5 sequence.
Magnification: 10 times, 100nS~50mS/DIV ±5% (20nS and 50nS are uncalibrated)
Linearity: ±3%, ±5% at x10 MAG (20nS and 50nS are uncalibrated)
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VERTICAL DEFLECTION:
Sensitivity & Accuracy: 5mV ~ 5V/DIV ±3%, lmV ~ 1 V/DIV ±5% (using x5MAG), 10 calibrated steps, selectable 1-2-5 sequence
Bandwidth (-3dB): DC (AC 10Hz) ~ 20MHz, DC (AC 10Hz) ~ 7MHz at x5 MAG
Rise time: Approx. 17.5n5 (x5 MAG Approx. 50ns)
Input coupling: AC, GND, DC
Input impedance: Approx. 1MOhm // 25pF
Max. input voltage: 300 V (DC+AC peak) at 1 kHz
Vertical modes: CH1, CH2, DUAL (CHOP, ALT), ADD, CH2 INV.
CHOP frequency: Approx. 250KHz
CH1 signal output: 20m V/DIV or more (with 50-ohm terminated), 50Hz to at least 5MHz
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TRIGGER:
Trigger modes: AUTO, NORM, TV-V, TV-H
Trigger source: CH1, CH2, LINE, EXT, TRIG-ALT.
Trigger coupling: AC
Trigger slope: + , -
Sensitivity INT(EXT): 20Hz~2MHz : 0.5div (200mV), TRIG. ALT : 2 div 2~20MHz : 1.5div (800mV), TRIG. ALT : 3 div TV sync. : 1 div. (1V)
EXT triggering signal input: Input impedance : Approx. 1MOhm // 25pF. Maximum input voltage : 300V (DC+AC peak) at 1 kHz
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X-Y OPERATION:
Input: X-axis: CH1 input signal; Y-axis: CH2 input signal
Bandwidth: X-axis: DC~500KHz (-3dB)
Phase difference: 3 degrees or less from DC to 50KHz
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Z-AXIS:
Input impedance: Approx. 47k ohm.
Sensitivity: At least 5 Vp-p (Trace becomes brighter with negative input)
Frequency response: DC~2MHz
Max. input voltage: 30V (DC+AC peak)
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CALIBRATION:
Output voltage: 2 Vp-p ±2% (square wave of 1kHz)
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OTHER:
Power Supply: AC115 / 230V ±15% connector selectable, 50/60Hz
Power Consumption: max. 40VA, 35W
Size and Weight: 310W x 150H x 455D mm, Approx. 8kg (17.6 lbs)
Temperature: Operation range 0°C-40°C (32°F-104°F, 85% RH Rated range for use 10°C- 35°C (50°F-95°F), 85% RH
Accessories: (1) Detachable power cord, (2) Low capacitance probe (1:1, 1:10), (1) Instruction manual
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