Instek GDS-840C Oscilloscope at Test Equipment and More

Specifications

Model	GDS-820	GDS-820S	GDS-820C	GDS-840S	GDS-840C
Display System
Display Device	Mono (320*240) 5.7" LCD	Mono (320*240) 5.7" LCD	Color (320*240) 5.7" LCD	Mono (320*240) 5.7" LCD	Color (320*240) 5.7" LCD
Display Contrast	Adjustable
Waveform Display Graticule	8 x 10 division
Display Mode	Dot, Vector, Accumulate
Vertical System
Bandwidth	DC~150MHz			DC~250MHz
Channels	2
Resolution	8-Bit
Sensitivity	2mV/div to 5V/div
Accuracy	±3?
Rise Time	<2.3ns			<1.4ns
Input Coupling	AC, DC & Ground
Input Impedance	1MΩ ±2Ω, ~22pF
Polarity	Normal & Invert
Maximum Voltage Between Signal and Common at input BNC	300V (DC+AC peak), CATII
Waveform Signal Process	CH1-CH2, CH1+CH2, FFT
Offset Range	2mV/div ~ 50mV/div: ±0.5V ; 100mV/div ~ 500mV/div: ±5V ; 1V/div ~ 5V/div: ±50V
Bandwidth Limit	20MHz (-3dB)
Horizontal System
Range	1ns/div ~ 10s/div (1-2-5 increments)
Modes	MAIN, WINDOW, WINDOW ZOOM, ROLL, X-Y
Accuracy	±0.01?
Delay Range	Pre-trigger: 10 div maximum ; Post-trigger: 500 div
Signal Acquisition System
Real-time Sample Rate	100MSa/s maximum on each channel
Equivalent Sample Rate	25GSa/s maximum on each channel
Record Length	125k/CH
Peak Detection	10ns (10μs/div ~ 5s/div)
Acquisition Mode	Sample, Peak Detect, Average
Average	2, 4, 8, 16, 32, 64, 128, 256
Trigger System
Sources	CH1, CH2, LINE, EXT.
Modes	Auto-Level,AUTO,NORMAL,SINGLE,TV,Time-delay,Event-delay
Coupling	AC, DC, LF Reject, HF Reject, Noise Reject
Sensitivity	DC ~ 25MHz: Approx. 0.35div or 3.5mV 25MHz ~ 100MH : Approx. 1.5div or 10mV			DC ~ 25MHz: Approx. 0.35div or 3.5mV
25MHz ~ 250MHz	Approx. 1.5div or 10mV
External Trigger
Range	±15V
Sensitivity	DC ~ 30MHz: ~ 50mV 30MHz ~ 100MHz: ~ 100mV			DC ~ 30MHz: ~ 50mV 30MHz ~ 100MHz: ~ 100mV 150MHz ~ 250MHz: ~ 150mV
Input Impedance	1MΩ ±2Ω, ~ 22pF
Maximum Input	300V (DC+AC peak), CATII
X-Y Mode
X-Axis Input / Y-Axis Input	Channel 1 / Channel 2
Phase shift	±3°at 100kHz
Cursors and Measurement
Automated Voltage Measurement	Vpp,Vamp,Vavg,Vrms,Vhi,Vlo,Vmax,Vmin
Automated Time Measurement	Freq, Period, Rise Time, Fall Time, Positive Width, Negative Width, Duty Cycle
Cursors Measurement	Voltage difference between cursors (?V) Time difference between cursors (?T) Frequency difference between cursors (1/?T)
Frequency Counter
Readout Resolution	6 digits
Accuracy	±50ppm
Range	AC Coupled, 10Hz minimum to rated bandwidth
Signal Source	All available trigger source except the Pulse Width & Video Trigger mode
Control Panel Functions
Autoset	"Autoset" can adjust Vertical, Horizontal and Trigger level automatically
Save/Recall	Up to 15 sets of measurement conditions can be saved and recalled
Waveform Trace Save/Recall	2 sets of waveform can be saved and recalled
Interface
RS-232 Interface	N/A	Standard
GPIB Interface	N/A	Option
Printer Port	N/A	Standard
USB Port	N/A	Standard
Misc
Power Source	100V ~ 240V AC 48Hz ~ 63Hz, auto selection
Accessories	Instruction manual x 1, Power cord x 1, Probe x 2
Dimensions & Weight	254D×142H×310W (mm), Approx. 4.1kg

Instek GDS-840C - 250MHz, 2-Channel Digital Stor