User’s Guide DSO-2250 USB PC Based Digital Oscilloscope Operation Manual
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 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.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 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.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 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 l The ambient temperature and relative humidity should be 0-40℃ and 10-80% respective for the normal operation of the product.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ Handing Precautions l The 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. l Do not connect or disconnect the product with the probe or test lead which is connected to a voltage source.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ Maintenance and Storage l If not using it for a long term, remove the USB cable from the product. l The recommended temperature and humidity for equipment storage is 25℃ at 50% humidity. After Service l There are no parts that you can replace inside the product. Do not attempt replacing a part yourself. It can give you an electric shock. l Do not attempt to open the case or repair yourself. It can cause an electric shock or other safety accidents.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ Hardware Specification Input Max.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 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.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 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.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 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.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 5. Check the setup information. Click Next to start copying of files. 6. This Status dialog is displayed during copying of files. 7. Updating Your System Configuration. 8. The installation is complete.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ Hardware Setup 1. Connect the A-Type Plug of USB cable to your PC’S USB port. 2. Connect the B-Type Plug of USB cable to DSO-2250 USB’S USB port. 3. New hardware is found.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 4. New hardware search wizard starts. 5. New hardware search wizard starts to search 6.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 7. Finish new hardware search wizard. 8. New hardware is found. 9. Set the driver search location to CD-Rom or the driver path 10. New hardware search wizard starts to search.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ 11. New hardware wizard installs software and finish new hardware search wizard. Setup DSO-2250 USB.inf under windows 2000 When DSO-2250USB.inf file is not detected automatically, you see the following dialog box. In this case you must install DSO-2250 USB.inf file manually. 1. Choose 'Search for a suitable driver for my device' button. Click Next to continue. 2. Specify a location. Click Next to continue. 3. The DSO-2250 USB.
ＤＳＯ －２ ２５ ０ＵＳ ＢＭａ ｎｕ ａｌ Probe Calibration DSO-2250 USB Calibration 1. When manufactured, DSO-2250 USB is calibrated manually to obtain maximum performance. 2. You may calibrate DSO-2250 USB 5 or 6 months after purchase. Probe Compensation 1. You must use a probe with more than 100MHz bandwidth to get undistorted signal. 2. Probe should be compensated whenever it is connected for the first time. 3. Connect calibration signal to channel 1, then push AUTOSET. 4. Check the shape of the displayed waveform. 5.
