dual channel digital oscilloscope 40MHz, dual channel,7 inch LCD display digital oscilloscope
USD $223.66 - $223.66 /Piece
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Dongguan Longwei Electronic Technology Co., Ltd.
LW-2042L :40MHz, dual channel,7 inch LCD display digital oscilloscope
Specifications
Sampling
Sampling type :Real time sampling equivalent sampling
Sampling rate :1GS/s
TEST METHOD:
Real-time
Equivalent
AVERAGE VALUE after all the channels have carry out N times sampling,the number can be selected between 2:4:8:16:32:64:128 and 256.
input
nput coupling (DC:AC:GND)
Input impedance 1±2%Mohm 24±3pF in parallel
Probe attenuation ratio setting 1×,10×,100×,1000×
Maximum input voltage 400V(DC+AC Vpp:1Mohm Input impedance)
Time delay between channels(typical) 150ps
level
Waveform interpolation Sin(x)/x
Record length 2×600k sampling point
Storage depth Signal channel is 25k, dual channel is 12.5K
Scanning range(s/div) 2ns/div-50s/div Follow 1-2-5 step
Sample rate and delay time precision ±50ppm(any more than1ms Time interval)
Time interval (Laplacian T)measure precision (full bandwidth) sole:±(1 sampling interval time +100ppm×reading+0.6ns)
More than 16 average value:±(1 sampling interval time +100ppm×reading+0.4ns)
Vertical
Analog digital converter (A/D) 8-bit resolution with synchronous sampling for 2 channels
Scope of deflection coefficient
(V/div) 1mV/div ~20V/div(in input BNC)
Displacement range more than±10 div
More meaning 100 MHz,80MHz,60 MHz,40 MHz
A single bandwidth 100 MHz,80MHz,60 MHz,40 MHz
(Typical) optional band width limitation 20 MHz
Low-frequency response
(AC coupling, -3dB) less than 10Hz(in BNC)
Rise time(typical in BNC)3.5 ns respectively in bandwidth or less (100 MHz, 80 MHz, 60 MHz, 40 MHz)
DC gain precision (by adopting sampling
or sampling mode of average value)±5%if the vertical sensitivity is 1mV/div or 2mV/div;
±4% if the vertical sensitivity is 5mV/div;
±3% if the vertical sensitivity is 10mV/div to 20V/div;
DC measurement precision
(by adopting average sampling mode) If vertical displacement is 0 and N more than 16:
±(5%×reading+0.1 grid+1mV) by selecting 1mV/div or 2mV/div;
±(4%×reading+0.1 grid+1mV) by selecting 5mV/div;
±(3%×reading+0.1 grid+1mV) by selecting 10mV/div to 20V/div;
If vertical displacement is not 0 and N more than 16:
±u12304X(3%×(reading+vertical displacement reading)+(1%×vertical
displacement reading)+0.2div;
To add 2mV when setting from 5mV/div to 200mV/div: To add set
value by 50mV when setting from 200mV/div to 20V/div;
Measurement precision of voltage
difference (Laplacian V) (by adopting sampling
mode of average value) Voltage difference between any 2 points on the waveform after
calculating average value for at least 16 captured waveform under the
same setup and environment conditions: ±(3%×reading+0.05div
Trigger
Trigger sensitivity Internal Trigger:less than 1div EXT trigger:less than 0.2V
Trigger level scope Away screen center±8div
(Typical) precsion of trigger
level for signal of which
Rise Time or Descend Time is
not less than 20ns ±(0.3div×V/div)(within scope of ±4div from screen center)
Pre-trigger ability Normal mode/scanning mode, pre-trigger/delay trigger with adjustable
pre-trigger depth
Inhibition scope 100ns – 1.5s
(Typical) level set to 50% Operation if frequency of input signal is not less than 50Hz
Edge trigger
Edge type Ascend, descend, ascend & descend
Pulse width trigger
Trigger mode To be more than, less than or equivalent to positive/negative pulse width;
Pulse width scope 20ns-10s
Alternate trigger
CH1 trigger Edge, pulse width
CH2trigger Edge, pulse width
Measurement
Cursor Manual mode Voltage difference (Laplacian V ) between cursors;
Time difference (Laplacian T ) between cursors;
Reciprocal of Laplacian T ( 1/Laplacian T )
Tracing mode Voltage and time of waveform point
Automatic measurement mode
It is allowed to display cursor during automatic measurement.
Automatic
measurement Peak value, amplitude, the maximum value, the minimum value, top value, bottom value,middle value, average value, root-mean-square, overshoot, preshoot, frequency, cycle,Rise Time, Descend Time, positive pulse width, negative pulse width, positive duty cycle,
negative duty cycle and delay
Specify parameter measurement Three kinds
Mathematical operation +, -,×, ÷
Stored waveform Internal:20 groups of waveform and 20 kinds of setup
USB:200 pairs of waveform storage storage, 200 groups of interface
FFT Window Hanning,Hamming,Blackman-Harris,Rectangle
Sampling point 1024 points
Lissajous's figure phase difference ±3degrees
Trigger frequency meter
Reading resolution 6
Trigger sensitivity less than 30Vrms
(Typical) precision ±51ppm (+1 word)
Display
Display type Diagonal with diagonal of 178mm (7 inches)
Display resolution 800 (horizontal) ×RGB×480 (vertical pixels)
Display color color
Waveform display area Level 12, 25 dot/div; 8 vertical, 25 dot/div
Contrast (typical) adjustment
(Typical) backlight
strength 300nit
Category of display
language Simplified Chinese, traditional Chinese, English, Spanish, Portuguese, French
Interface functions
Standard configuration 1USB OTG
Power
Power voltage 100-240VACRMS,45-440Hz,CAT II
Power
consumption To be less than 30VA
Fuse F1.6AL 250V on power
board in the machine.
environment
Temperature range operation:0°C~+40°C
Non-operation:-20°C~+60°C
Cooling method Fan force to cool
Humidity range less than +35°C:less than 90%RH
+35°C~+40°C:less than 60%RH)
altitude
Operation: less than 3,000m
Non-operation: less than15,000