User manual
Only use measuring cables or measuring accessories that are suitable for the DSO’s specications.
If a safe operation can no longer be assumed, the device must be put out of operation and secured against
unintended operation. Safe operation can no longer be assumed if:
- the device is visibly damaged,
- the device does not function any more and
- the device was stored under unfavorable conditions for a long period of time or
- Following considerable stress during transportation.
Never switch the device on immediately after having taken it from a cold to a warm environment. The
condensation that forms might destroy your device. Allow the device to reach room temperature before
switching it on.
Never disassemble the product! There is a life-threatening electric shock hazard!
Do not carelessly leave the packaging material lying around, since it could become a dangerous plaything
for children.
The device is intended only for dry interior rooms (not bathrooms or similar damp rooms). The device must
not get wet or damp. There is a life-threatening electric shock hazard!
On industrial sites, the accident prevention regulations of the association of the industrial workers’ society
for electrical equipment and utilities must be followed.
In schools, training centres, computer and self-help workshops, the use of measuring instruments and
accessories must be supervised by trained personnel in a responsible manner.
If you have doubts about how the equipment should be operated or how to connect it safely, consult a
trained technician.
Please handle the product carefully. The product can be damaged if crushed, struck or dropped, even from
a low height.
Pay attention to the detailed operating instructions in the measurement program (Help).
This device left the manufacturer’s factory in a safe and perfect condition.
We kindly request that the user observes the safety instructions and warnings contained in the enclosed
operating instructions so this condition is maintained and to ensure safe operation. Please pay attention to
the following symbols:
An exclamation mark in a triangle indicates important information in these operating instructions
which is to be followed strictly.
The “arrow” symbol indicates that special tips and notes on operation are provided here.
This product has been CE-tested and meets the necessary national and European guidelines.
DSO-2074G
Mains adapter with 4 mains plug adapters (Euro/GB/US/AU)
4 test probes with switchable potential divider (1:1, 10:1)
Measurement program on Mini-CD (with detailed instructions from the “Help” option in the software menu)
USB connection cable 1m
BNC measurement cable 90 cm
Carrying bag
Quick guide
G
The oscilloscope attachment is used in combination with a Windows® based computer with a free USB 2.0
interface as fully digital storage oscilloscope (DSO) for the visualisation of electric quantities and signals.
There are four independent input channels available for measurement. The probes are connected to the
DSO via BNC connectors. Operation and display is performed using the enclosed measurement program.
It is equivalent to a real oscilloscope operating interface. In addition, there is a spectrum analyser (FFT),
mathematical special functions and cursor for measuring signals. The spectrum is 70 MHz and the real-
time sampling rate is 200 MS/s (mega-samples/second).
The measured signals can be stored in different formats and called up or processed in other programs.
For simple initial operation, user dened appliance settings can be stored and called.
Never exceed the specied measurement voltage of 40 V/DC or 40 Vp/AC. Use divider probes if neces-
sary. The product may be used only in the measurement category range CAT I, for signal voltages.
It also contains an arbitrary DDS function generator (1-channel), with which freely generatable and direct-
digital signals (DDS) can be generated. The frequency range extends from DC - 25 MHz with a vertical
resolution of 12 bits and a storage depth of 4000 samples.
For operation, a universal mains adapter with interchangeable mains plugs is included. Select the plug
adapter suitable for your country and place it on the mains adapter.
Any use other than that described above could lead to damage to this product and involves the risk of short
circuits, re, electric shock, etc.
No part of the product may be modied or rebuilt, and the housing must not be opened.
Measurements are not permitted in damp rooms or outdoors, nor under adverse environmental conditions.
- Unfavourable ambient conditions are:
- Wetness or high air humidity,
- Dust and combustible gases, vapours or solvents,
Thunderstorms or similar conditions such as strong electrostatic elds, etc.
Always observe the safety notes included in these operating instructions.
This quick guide explains the safety measures that should be taken to make working with the device as
safe as possible. The individual functions of the device are explained in detail in the “Help” function in the
measurement program.
Detailed instructions on installing the device, driver installation and measurement modes can be viewed
from the measurement program’s “Help” option in the menu.
The warranty will be void in the event of damage caused by failure to observe these safety instructions! We
do not assume any liability for any resulting damage!
We shall not accept liability for damage to property or personal injury caused by incorrect handling or non-
compliance with the safety instructions! Any warranty will be void in such cases.
The unauthorised conversion and/or modication of the product is not allowed for safety and approval
reasons (CE).
All earth connections of the measuring inputs are directly connected to the earth of the USB connector and
the mains adapter. Make sure that the circuit to be measured is galvanically isolated from the mains (e.g.
via an isolating transformer, etc.).
Measuring devices and accessories should be kept away from children. Therefore, be especially careful
when children are around.
First, connect the BNC output of the probe to the oscilloscope attachment, before you connect the probe
to the electric circuit that is to be tested. When the measurement is completed, please disconnect the
measuring contacts rst, before disconnecting the BNC probe output from the oscilloscope attachment.
Take particular care when dealing with voltages exceeding 33 V AC or 70 V DC! Even at such voltages you
can get a life-threatening electric shock if you come into contact with live electric wires.
Check the measuring device and its measuring leads for any damage before each measurement. Never
take any measurements if the protecting insulation is defective (torn, missing etc.).
To avoid electric shock, do not touch the connections/measuring points directly or indirectly during
measurements.
Never reach beyond the grip surface of the probes during a measurement process. There is danger of a
life-threatening electric shock.
Do not use the appliance just before, while or shortly after a thunderstorm (lightning!/ overvoltage!). Make
sure that your hands, shoes, clothing, the oor, the measuring device and/or measuring lines, the circuits
and circuit components are always dry.
Do not use the product inside of rooms, or in poor ambient conditions, where ammable gases, vapours or
dust may be present or are present. The device may not be used in explosion-prone areas (Ex).
Only a proper, earthed outlet (100-240 V/AC, 50/60 Hz) of the public mains supply may be used as a
voltage source. The mains socket must be close to the device and easily accessible, or an emergency kill
switch device must be present.
Do not use in the immediate proximity of strong magnetic or electromagnetic elds or transmission aerials.
These can affect the measurement.