20MHz Analog Oscilloscope+function Generator
Handheld Digital Storage Oscilloscope & Multimeter
The GDS-122 is a reliable and handy instrument for all test and electronic engineers. This model is
designed to carry out complicated on-site tests. The Dual-channel unit provides 20MHz of bandwidth
with a sampling rate of 100MS/s with additional DMM functionality. The color LCD display with a 320
x 240 resolution helps you to read waveforms easily, especially when displaying a lot of data or multiple
waveforms. The compact design with a total weight of 690g allows engineers to carry it around easily.
The unit's protective cover is insulated and specially designed to endure tough environments. A
rechargeable Li-ion battery ensures convenience for on-site testing.
The GOS-620FG is a general purpose analog oscilloscope with a 20MHz bandwidth. Aside from the
basic functions, such as 1mV/div~5V vertical sensitivity, 0.2uS/div~0.5S/div horizontal sweep time,
and practical Auto/Norm/TV-V/TV-H trigger modes, the GOS-620FG offers extra function generating
features required for most class experiments and electrical production lines. The affordably priced
GOS-620FG is capable of generating Sine/Square/Triangle waveforms in the frequency ranges from
0.1Hz~1MHz (7 range) with sine wave distortion as low as 2%.
SPECIFICATIONS
GDS-122 (20MHz)
FEATURES
SPECIFICATIONS
OSCILLOSCOPES
* Built-In 1 MHz Function Generator
* 20MHz Bandwidth, Dual Channel
* High Sensitivity 1mV/div
* ALT Triggering Function
* TV Synchronization
* CH1 Output
* Z Axis Input
* Economic Choice for High Quality
CRT
Type
Accelerating Potential
Z-Axis Input
Polarity
Focus Control
FUNCTION GENERATOR
Frequency Range
Waveform
Frequency Variable Range
Output Impedance
Voltage
Sinewave Distortion
Squarewave Unsymmetry
Squarewave Rise/Fall Time
VERTICAL SYSTEM
Sensitivity
Bandwidth
Rise Time
Max. Input
Input Coupling
Input Impedance
Vertical Mode
HORIZONTAL SYSTEM
Sweep Time
Max. Sweep Rate
TRIGGER
Trigger Mode
Trigger Source
Trigger Slope
X-Y OPERATION
Sensitivity
X-axis Bandwidth
Phase Error
OUTPUT SIGNAL
Trigger Signal Output
Calibrator Output
6-inch rectangular type with internal graticule ; 8 x 10 div (1div=1cm)
2kV
Sensitivity: Above 5Vp-p ; Max. input voltage : 30V (DC + AC peak)
Bandwidth: DC ~ 2MHz
Positive-going input decrease
Auto focus
0.1Hz ~ 1MHz (7 range)
Sine Wave, Square Wave, Triangle Wave
10:1 or more
_10%
50 +
Over 20Vp-p(open circuit)continuous conversion
_ 10V when open
DC offset possible over +
1% Max. (10Hz ~ 20kHz)
_ 3% or less (in 1 kHz maximum)
+
50 output: 120ns or less
_5%(using x 5MAG.)
_ 3%,1mV/div~1V/div +
5mV/div~5V/div +
DC to 20MHz (x 5MAG.:DC to 7MHz)
Approx. 17.5ns (x 5MAG.:Approx. 50ns)
300V (DC+ACpeak) at 1kHz
AC, DC, GND
Approx. 1M // 25pF
CH1,CH2,DUAL(ALT,CHOP),ADD,CH2 INV
_ 3% (+
_ 5% at x 10MAG)
0.2 s/div ~ 0.5s/div +
100ns/div (20ns and 50ns/div are uncalibrated)
FEATURES
* 20 MHz Bandwidth
* 100 MS/s Real-Time Sampling Rate
* Digital Storage Oscilloscope & Multimeter
* True RMS Multimeter Volts, Amps, Ohms,
Continuity, Diode
* Dual Independent Floating Isolated Channels
(for Multimeter and Between Oscilloscope and
Multimeter)
* Trigger Mode : Free Run, Single Shot, Edge,
Video
* USB Interface
* 4 Hour Capacity Li-ion Rechargeable Battery
* 3.8" Color LCD, Resolution: 320 × 240
* Light Weight at 690g
PACKAGE CONTENTS
Extension module for large
current measurement
Oscilloscope probe
AUTO, NORM, TV-V, TV-H
CH1, CH2, ALT, LINE, EXT
" + " or " - "
_ 4%
5mV ~ 5V/div +
DC ~ 500kHz
3。or less from DC ~ 50kHz
Extension module for small
capacitance measurement
Multimeter test lead
Voltage : approx. 20mV/div into 50 W
Bandwidth : 50Hz to 5MHz (-3dB)
Impedance : Approx. 50 W
1kHz Square wave, 2Vp-p 2%
POWER SOURCE
_ 15%, 50/60Hz
AC 115/230V +
DIMENSIONS & WEIGHT
AC-DC adaptor
310(W) x 150(H) x 455(D)mm; Approx. 8.5kg
HORIZONTAL
Sampling Rate Range
Waveform Interpolation
Record Length
Scanning Speed Range S/div
Sampling Rate and Relay Time Accuracy
Time Interval
(T)Measurement Accuracy Full Bandwidth
10S/s~100MS/s
sin x / x
6K points on each channel
5ns/div 5s/div, stepping in the “1-2.5-5” mode.
±100ppm(any time interval which is equal to or larger than 1ms)
Single: ±(1 sampling interval time+100ppm×reading+0.6ns)
>average 16 : ±(1 sampling interval time +100ppm×reading+0.4ns)
INPUT
Input Coupling
Input Impedance
Probe Attenuation Coefficient
Max. Input Voltage
Channel Delay Time (Typical)
SAMPLING
Sampling Modes
Sampling Rate
MEASUREMENT
Cursor Measurement
Auto Measurement
MULTIMETER SPECIFICATIONS
Input Impedance
Voltage
Max Input
VAC
Frequency
Max Input
Current
Capacitance
Diode
GENERAL SPECIFICATIONS
Display
DC, AC
1MΩ±2% connected in parallel with 20pF±3pF
1X, 10X, 100X, 1000X
400V (peak)
150ps
Normal sampling
Peak detection
Average value
100 MSa/s
Voltage difference (V) and time difference (T) between cursors
Peak-to-peak value,average value,root mean square value,frequency and cycle
10MΩ
VDC: 400mV, 4V, 400V ±(1% +1 digit)
DC 400V
4V, 40V, 400V ±(1% +3 digit)
40Hz ~ 400Hz
AC 400V (Virtual value)
DCA : 40mA, 400mA ±(1.5% +1 digit); 20A: ±(3% +3 digit)
DAA : 40mA ±(1.5% +3 digit), 400mA ±(2% +1 digit); 20A: ±(5% +3 digit)
400Ω ±(1%+3 digit),
4KΩ, 40KΩ, 400KΩ, 4MΩ ±(1%+1 digit), 40MΩ ±(1.5%+3 digit)
51.2nF ~ 100uF ±(3%+3 digit)
0V ~ 1.5V On/Off measurement < 50 (±30) beeping
Display type : 3.8" color liquid crystal display
Display resolution : 320 (horizontal) × 240 (vertical) pixels
Display color : 4096 colors
Power supply : 100-240 VACRMS, 50Hz, CAT II ; Power consumption : < 6W
Used battery : 0~50 °C (32~122 °F);Power adapter : 0~40 °C (32~104 °F)
DIMENSION & WEIGHT
115(W) x 180(H) x 40(D) mm ; Approx. 0.69kg
GOS-620FG 20MHz Oscilloscope with Built-in 1MHz Function Generator
1kHz square wave output
cable
USB communication
cable
ORDERING INFORMATION
GDS-122
OPTIONAL ACCESSORIES
GTC-001 Instrument Cart, 450(W) x 430(D) mm
GTC-002 Instrument Cart, 330(W) x 430(D) mm
GTL-110 Test Lead, BNC-BNC Heads
DC coupling : 1div (full bandwidth)
AC coupling : Same as the DC coupling > 50Hz
±6 divs from the screen center
±0.3 divs (typical)
655 divs (pre-trigger), 4 divs (post-trigger)
Input signal frequency > 50Hz
2 divs of peak-to-peak value
Supports NTSC, PAL and SECAM, any or line frequency
Power Adapter
Operating Temperature
ORDERING INFORMATION
ACCESSORIES :
User manual x 1, Power cord x 1
Probe-GTP-020A-4 : 20MHz ( 10 : 1/1 :1 ) Switchable Passive Probe (one per channel)
Test Lead GTL-101 x 1
Trigger Level
Trigger Level Accuracy
Trigger Displacement
50% Level Setting
Trigger Sensitivity
Video Trigger
Impedance
Soft carrying case
8 bits simultaneously sampling on both channels
5mV/div 5V/div at the input BNC
±50V (500mV ~ 5V), ±1V(5mV ~ 200mV)
20MHz
Full bandwidth
±5Hz at the BNC input
17.5ns (typical)
±5%
±(5% reading + 0.05 div), at the Average sampling mode (> 16)
OSCILLOSCOPES
GOS-620FG
GOS-620FG (20 MHz)
Analog Digital Converter Resolution
Sensitivity
Displacement Range
Analog Bandwidth
Single Bandwidth
Low Frequency Response AD Coupling,-3dB
Rise Time
DC Gain Accuracy
DC Measurement Accuracy
TRIGGER
Trigger Sensitivity Edge Triggering
GDS-122
VERTICAL
CD-ROM(Software), User manual
Handheld Digital Storage Oscilloscope & Multimeter
ACCESSORIES :
User manual, AC-DC Adaptor, Probe-T5060:60MHz(10:1/1:1)Switchabel Passive Probe (one per channel)
Multimeter test lead, Serial data communication cable, Extension module for small capacitance measurement,
Extension module for large current measurement
FREE DOWNLOAD
PC Software
A41
Good Will Instrument Co., Ltd.
Simply Reliable
Simply Reliable
Good Will Instrument Co., Ltd.
A42