Hantek DSO-2250 USB Bedienungsanleitung

User’s Guide

DSO-2250 USB

PC Based Digital Oscilloscope

Operation Manual

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Certificate of Product Warranty

This product’s warranty, provided by our company, covers a period of 1 year

form the date of purchase. All faulty parts and/or functions, resulting despite

user’s normal use, will be repaired and/or replaced at no charge during the

warranty period.

However, if any of the malfunctions are caused by user carelessness, inadequate

maintenance, or natural disaster, we will the provide repair and/or replacement

services for a fee regardless of warranty period.

In the event our product does not prove suitable for your application you can

return the product for an exchange or refund. To claim, the product must be

returned in good condition within 14 days. Before returning a product, please

contact and provide us a serial number. The customer is responsible for all

shipping costs.

Products covered by this warranty are limited to those that are registered at the

We headquarter or branch offices and repairs, replacements, or refunds will be

issued according to manufacturer’s discretion. When in need of warranty services,

the purchaser may visit our headquarter or one of our sales offices with the

product or send the product with a detailed description of services required via

postal service to any of our sales offices (the purchaser will be responsible for

packaging, postage, and any postal insurance).Once repair services are completed,

the supplier will return the product to the purchaser (return postage will be paid

by the supplier).

However, if we determined required services to be outside the boundaries of the

warranty coverage, we will first contact the purchaser and provide an estimate of

repair costs and obtain authorization to conduct services before any work is done.

In such a case, return postage along with the repair costs will be billed to the

purchaser when the repaired product is returned.

We do not warrant that the software and the product with which it was supplied

are completely error free or that will function correctly in all operating

environments. It is essential that you, the users, should verify that the software

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and product are functioning to your requirements before relying caused on them

or the data that they generate. We do not accept responsibility for any loss or

injury caused by the use of the product or software. It is the user’s responsibility

to ensure that the product is suitable for the user’s application.

We will not be held legally for any malfunction resulting from user carelessness,

abnormal use, and/or natural disaster. Even if we are in receipt of prior

notification of such dangers, we will not be held legally liable.

Product Warranty Guide

Please read through the ¡°Precautions for Safety¡±carefully to obtain a long and

safe use of this product.

This product has been processed through careful quality control and testing

procedures. Any malfunctions occurring during normal use are covered under the

guidelines of the ¡°Certificate of Product Warranty¡±, which is included in this

Manual.

If you experience product malfunction, please contact our headquarters or any of

our sales offices.

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Precautions for Safety

The following instructions are provided for safe and correct use of the product

and to prevent a potentially dangerous situation or damage in advance. Be sure to

read through them before you use the product.

Recommended Usage Environment

lThe ambient temperature and relative humidity should be 0-40℃and

10-80% respective for the normal operation of the product.

Power Source

lThe USB terminal and DSO-2250 USB are connected via a USB cable for

DC +5V power from the PC. The product does not require an outside power

source.

Warning: Be careful not to input excessive power voltage

lThe product’s input power capacity is fixed as shown below to prevent

electric shock and/or fire. Please DO NOT use voltage higher than that

prescribed below.

(Warning) Be sure to check the probe attenuation before measuring the

voltage. The voltage that is higher than the maximum input voltage can

cause damage to the device and you. In particular, there is the risk of

an electric shock when measuring high voltage. So you need to pay

extra attention not to have your hand touch the terminal.

lPlease eliminate all unused probes or tester leads so that they do not come in

contact with surrounding high voltage parts.

lMake sure that the PC’s power source is grounded.

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Handing Precautions

lThe probe ground lead is at ground potential. Do not connect the ground

lead to an elevated voltage. Connect the ground lead of the probe to earth

ground only.

If measuring the floating potential, we will recommend the measurement by

the differential motion method using CH1 and CH2.

lDo not connect or disconnect the product with the probe or test lead which

is connected to a voltage source.

lDo not attempt to operate the product at the situation that a risk of

dysfunction or shock expected to happen.

lStop using the product immediately when you notice something unusual

about the smell, smoke or sound.

And then remove the USB connection form your computer.

lKeep the product out of the reach of children or those who cannot be trusted

with the use.

lDo not use the product with your hands wet. It can cause an electric shock.

lDo not try the product for the purposes other than those stated.

Usage Location

lIf the products crevice is exposed to electric conductors (solids or liquids),

the product will short circuit and possibly create dangers of electric shock or

fire. Please keep this product away form humidity, water, or dust.

lDO NOT use this product near gas as well as other flammable and/or

explosive materials.

lStore the product where direct sunlight can’t reach.

lDO NOT use the product where it’s dirty, other machines are operated, or

there is a high level of electromagnetic waves.

lDO NOT place the product on an unstable cart, stand, or tripod. Such usage

creates the dangers of accident and/or damage to product.

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Maintenance and Storage

lIf not using it for a long term, remove the USB cable from the product.

lThe recommended temperature and humidity for equipment storage is 25℃

at 50% humidity.

After Service

lThere are no parts that you can replace inside the product. Do not attempt

replacing a part yourself. It can give you an electric shock.

lDo not attempt to open the case or repair yourself. It can cause an electric

shock or other safety accidents.

lOnce you open the case, you cannot have the privilege of an after-sales

service.

Minimum System Requirements

To install and run DSO-2250 USB, you should have the following.

Operating System

Windows 98/ME/2000/XP/VISTA

Memory

128Mbyte

Graphic Card

Microsoft DirectX supported

Screen resolution: 800x600

Color depth: 16bit

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Hardware Specification

Input

Max. sample rate Real-time sampling: 250MS/s using one channel,

125MS/s using two channels

Channels 2

Bandwidth 100MHz analog bandwidth

Vertical resolution 8 bits/channel

Gain range 10mV ~ 5V/div @ x1 probe(10mV, 20mV, 50mV,

100mV, 200mV, 500mV, 1V, 2V, 5V/div1,2,5

sequence)

100mV ~ 50V/div @ x10 probe

1V ~ 500V/div @ x100 probe

10V ~ 5KV/div @ x1000 probe

Range 8 divisions

Offset level +/-4 divisions

Coupling AC, DC ,GND

Offset increments 0.02 div

Impedance 1M ohm

DC accuracy +/-3%

Input protection 35Vpk (DC + peak AC < 10 kHz, without external

attenuation)

Display Mode Y-T, X-Y

Timebase

Timebase range 4ns/div ~ 1h/div(4ns, 10ns, 20ns, 40ns, 100ns, 200ns,

400ns, 1us, 2us, 4us, 10us, 20us, 40us, 100us, 200us,

400us, 1ms, 2ms, 4ms, 10ms, 20ms, 40ms, 100ms,

200ms, 400ms, 1s,2s, 4s, 10s,20s,40s,10m,20m,40m,1h

/div 1-2-4 sequence)

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Acquisition mode Real-time sampling: 4ns /div ~ 400ms/div

Roll mode: 1s/div ~ 1h/div

Range 10 divisions

Buffer size 10K ~512K samples

Trigger

Mode Auto, Normal and Single

Type Edge trigger: Rising edge, falling edge.

Autoset Yes

Range 10 divisions

Trigger level +/-4 divisions

Settabillity 0.02 div increments

Math

Measurements Vp-p, Vmax, Vmin, Vmean, Vrms, Vamp, Vhigh, Vlow,

positive overshoot, negative overshoot, cycle mean,

cycle rms, period, frequency, positive pulse width,

negative pulse width, rise time (10%~90%), fall time

(10%~90%), positive duty cycle, negative duty cycle

Cursor Time/frequency difference, voltage difference Frequency

only in FFT mode

Math Addition, Subtraction, Multiplication, Division

FFT Rectangular, Hanning, Hamming, Blackman Window

Physical

Interface Universal Serial Bus (USB2.0,1.0)

Power No external power source required.

Bus-powered from USB

Dimensions 187 x100 x 33(mm)

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Introduction

DSO-2250 USB developed by our company. is a portable PC-based

Digital Oscilloscope.

High performance

DSO-2250 USB has the following features: 100MHz analog

bandwidth, 250MHz real-time sampling.

USB connected

DSO-2250 USB uses USB that supports plug’n play, with

12Mbp communication speed.

Best performance for your dollar

DSO-2250 USB has many features that are comparable to the

high speed stand-alone DSOs. But it costs a fraction of the

price.

No external power required

DSO-2250 USB does not need an external power source,

because it is bus-powered from USB

Easy to use

DSO-2250 USB is easy to use. It is intuitive and easy to understand.

Big screen

You can change DSO-2250 USB screen size as you need.

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Various data format processing

DSO-2250 USB can save waveform in the following formats: text file, jpg/bmp

graphic file, MS excel/word file.

Software Installation

1. While in Windows, insert the installation CD into the CD-ROM drive.

2. The installation should start up automatically. Otherwise in Windows Explorer,

switch to the CD-ROM drive and run ’ Setup.exe’.

3. The DSO-2250 USB Installation is started. Click 'Next' to continue.

4. Choose a destination directory. Click 'Next' to continue.

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