Digital Oscilloscopes GDS-122

Features

20MHz Bandwidth
100MS/ s Real-Time Sampling Rate
True RMS Multimeter: Volt, AMp, Ohm, Continuity, Diode
Dual Independent Floating Isolated Channels
( for Multimeter and Between Oscilloscope and Multimeter)
Trigger Mode: Free Run, Single Shot, Edge, Video
USB Interface
6 Hour Capacity Li-ion Rechargeable Battery
3.8" Color LCD, Resolution: 320 x 240
Light Weight: 690g
VERTICAL

Channels 2
Analog Bandwidth 20MHz
Single Bandwidth Full bandwidth
Rise Time 17.5ns
Sensitivity 5mV/ div ~ 5V/ div at the BNC input
DC Gain Accuracy ± 5%
DC Measurement Accuracy ± ( 5% reading + 0.05div) : average sampling
Analog Digital Converter Resolution 8 bits, synchronously sampling on both channels
Displacement Range ± 50V ( 500mV ~ 5V) , ± 1V ( 5mV ~ 200mV)
Low Frequency Response AD Coupling, -3dB ± 5Hz at the BNC input
TRIGGER

Sources CH1, CH2
Trigger Sensitivity 2div, peak-to-peak value
Trigger Sensitivity Edge Trigger DC coupling: 1div ( full bandwidth)
AC coupling: same as the DC coupling ( g50Hz)
Trigger Level Range ± 6div from the screen center
Trigger Level Accuracy ± 0.3div typical
Trigger Displacement 655div ( pre-trigger) , 4div ( post-trigger)
50% Level Setting Input signal g50Hz ( typical)
Video Trigger NTSC, PAL, SECAM ( any line or frequency)
HORIZONTAL

Sampling Rate 10S/ s ~ 100MS/ s
Waveform Interpolation sinx/ x
Record Length 6k points on each channel
Scan Speed 5ns/ div ~ 5s/ div, 1-2.5-5 step
Sampling Rate and Relay Time Accuracy ± 100ppm ( g1ms)
Time Interval Accuracy ( Full Bandwidth) Single: ± ( 1 sampling interval time + 100ppm x reading + 0.6ns)
Average > 16: ± ( 1 sampling interval time + 100ppm x reading + 0.4ns)
INPUT

Input Coupling DC, AC
Input Impedance 1M© ± 2% , connected in parallel with 20pF± 3pF
Probe Attenuation Coefficient 1X, 10X, 100X, 1000X
Maximum Input Voltage 400V ( peak)
Channel Delay Time 150ps ( typical)
SAMPLING

Sampling Mode Normal, Peak Detect, Average
Sampling Rate 100MSa/ s
MEASUREMENT

Cursor Measurement Voltage difference and Time difference between cursors
Auto Measurement Peak-to-peak, Average, Root mean square, Frequency, Cycle
MULTIMETER SPECIFICATIONS

Input Impedance 10M©
Voltage VDC: 400mV, 4V, 400V ± ( 1% + 1digit)
VDC: 4V, 40V, 400V ± ( 1% + 3digits)
Maximum Input Voltage DC 400V, AC 400V ( virtual value)
Frequency 40Hz ~ 400Hz
DC Current 40mA, 400mA ± ( 1.5% + 1digit) , 20A ± ( 3% + 3digits)
AC Current 40mA ± ( 1.5% + 3digits) , 400mA ± ( 2% + 1digit) , 20A ± ( 5% + 3digits)
Impedance 400© ± ( 1% + 3digits) , 4k© , 40k© , 400k© , 4M© ± ( 1% + 1digit) , 40M© ± ( 1.5% + 3digits)
Capacitance 51.2nF ~ 100uF ± ( 3% + 3digits)
Diode 0V ~ 1.5V on/ off measurement < 50© ( ± 30© ) beep
GENERAL SPECIFICATIONS

Display Type 3.8" color liquid crystal display
Display Resolution 320 ( horizontal) x 240 ( vertical) pixels
Display Color 4096 colors
Power Supply 100 ~ 240VAC, 50Hz, CATII
Power Consumption