TENMA 72-7240 User Manual
Digital Oscilloscope
Page <1> 06/05/09 V1.1
http://www.farnell.com
http://www.newark.com
http://www.cpc.co.uk
Features:
••
Go-No Go and auto setup sequence.
••
FFT function.
••
Built-in help menu, multi-language and PC software.
••
Standard interface : USB, RS-232C, printer port.
••
Option : GPIB interface.
Display system
Display device Colour (320 x 240) 5.7 inches LCD
Display contrast Adjustable
Waveform display graticule 8 x 10 divisions (8 x 12 div, when menu off)
Display mode Dot, vector, accumulate
Vertical system
Bandwidth 250MHz (-3dB)
Channels 2
Vertical resolution 8-bit
Vertical sensitivity 2mV/div to 5V/div
Vertical accuracy ±3%
Rise time <1.4ns
Input coupling AC, DC, ground
Input impedance
1MΩ ±2% to 22pF
Polarity Positive and negative
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 to 50mV/div : ±0.5V
100mV/div to 500m/V/div : ±5V
1V/div to 5V/div : ±50V
BW limit 20MHz (-3dB)
Horizontal system
Time base range
1ns/div to 10s/div
Roll : 250ms/div to 10s/div
Time base mode Main, window, window zoom, roll, X to Y
Time base accuracy ±0.01%
Delay range
Pre-trigger : 20 div maximum
Post-trigger : 1000 div
Specifications
Signal Acquisition
System
Real-time sample rate 100MS/s maximum on each channel
Equivalent sample rate 25GS/s ET maximum on each channel
Record length 125k/CH
Peak detection 10ns (500ns/div to 10s/div)
Acquisition mode Sample, peak detect, average
Average 2, 4, 8, 16, 32, 64, 128 and 256
Digital Oscilloscope
Page <2> 06/05/09 V1.1
http://www.farnell.com
http://www.newark.com
http://www.cpc.co.uk
Trigger
Trigger source CH1, CH2, line, ext
Mode
Auto level, auto, normal, single, TV, time delay, event delay, edge,
pulse width
Coupling AC, DC, HF, LF, noise reject
Sensitivity
DC to 25MHz : approximately 0.35 div or 3.5mV
25MHz to 250MHz : approximately 1.5 div or 15mV
X-Y mode
X-axis input / Y-axis input Channel 1/Channel 2
Phase shift ±3° at 100kHz
Cursor and
measurement
Auto voltage measurement
V
pp, Vamp
, V
avg
, V
rms
, Vhi, VIo, V
max
, V
min
Auto time measurement
Frequency, period, rise time, fall time, positive width, negative
width, duty cycle
Cursor measurement
Voltage difference between cursors (∆V)
Time difference between cursors (∆T)
Frequency different between cursors (1/∆T)
Frequency counter
Readout resolution 6 digits
Frequency range AC coupled, 10Hz minimum to rated bandwidth
Signal source
All available trigger source except the pulse width and video
trigger mode
External trigger
Range ±15V
Sensitivity
DC to 30MHz : 50mV
30 to 150MHz : 100mV
150MHz to 250MHz : 150mV
Input impedance
1MΩ ±2% to 22pF
Maximum input 300V (DC + AC peak), CATII
Specifications
Control panel
function
Autoset
Autoset can adjust vertical (volt/div)
Horizontal (sec/div)
Trigger level automatically
Save/recall
Up to 15 sets of measurement conditions can be save and
recalled
Waveform trace save/recall 2 sets of waveform can be saved and recalled
Interface
USB
StandardRS-232C
Printer Port
GPIB Option
Power source 100V to 240V ac, 48Hz to 63Hz, auto selection
Accessories
Power cord x 1, operation manual x 1
GTP-250A probe (10:1/1:1) x 2
Dimensions (D) 254 x (H) 142 x (W) 310mm
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