PicoScope 2000 Series User Guide
Contents
1. PicoScope 2000 Series PC Oscilloscopes User guide Copyright 2005 Pico Technology Limited All rights reserved PS2000044 1 0 I PicoScope 2000 Series User Guide Table of Contents T introduction teceseccecceccccecrecnerescecnemescecnemesmecmemeseeceereemeeeenemnmeeenemneeeemnecesnemte 2 d OVErVIGW usage DEENEN cee cedeseccceuede A ioe 2 2 Safety SYMDOIS ssssssnuernnnsrsernnunnnnnnnsrnnnnnnnnnnnnennnnnnnnnnnnnennnnnnnnnnneennnna 2 3 Safety warning E EEEEEEEEERREEEEEEEEEEEEEEEREEEEEEEEEEEEEEEERREEEESEEEEEEEEEERREEEEEE KEEN 3 A FOC Notice EE 3 S CE NOCO EE 4 6 Licence conditions EEN EEN 4 7 TradematkS e esiegeses deg Nee ege Ne VES NES E NEES NEEN ge NEES EEN e EEN GENEE EN deeg A 8 Warranty E EEEEEEEERREEEEEREEREREEEEEEEEEREEEREEEEREEEEREREEERESEEREREEEREEEER RRE RRE EE EEEn 5 9 Company details ssesssessserseunseunonnnennnonneonnennnennnennuennuennnennnennsennennnennnen 5 2 Product information sssssnsssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn nnmnnn 6 1 Minimum system requirements REENEN 6 2 Installation instructions EEN 7 3 Specifications E EEEEEEEEERREEEEEEEEEEEEEEERREEEEEEEEEEEEEEERREEEESEEEEEREEEERREEEEER KEEN 8 4 Sampling modes eveeeeeeeeeeeeeeee cece eee eeeeeeeeeeeeeeeeeeneeeeeeeneeeeeeeeeeeeeeeeeeeeeeeeeeeeeeens 8 3 Glossary tsesecctcnandesannasesaccscessnsncessnensesacndasacensnsnensmsiecninsaenninencnnemenanneute 9 Index NEG 11 Copyrigh2. 500 mA External power supply is not required Maximum Dimensions 140 mm x 190 mm x 45 mm Compliance CE standard FCC standard Sampling modes PicoScope 2000 series PC Oscilloscopes can run in various sampling modes At high sampling rates the oscilloscope collects data much faster than a PC can read it To compensate for this the oscilloscope stores a block of data in an internal memory buffer delaying transfer to the PC until a preset number of data points has been sampled This is called block mode At very low sampling rates you may want to switch to streaming mode This allows accurately timed data to be transferred back to the PC in short blocks without gaps Real time continuous mode is also provided for use at low sampling rates when immediate data transfer without gaps is required but timing accuracy is not critical Copyright 2005 Pico Technology Limited All rights reserved PS2000044 1 0 9 PicoScope 2000 Series User Guide 3 Glossary AC DC switch To switch from alternating current to direct current or vice versa select AC or DC from the control on the oscilloscope toolbar of the PicoScope software application The setting should be adjusted to suit the characteristics of the input signal Analog bandwidth The input frequency at which the signal amplitude has fallen by 3 dB from its nominal value Block mode A sampling mode in which the computer prompts the oscill
3. Input range maximum 8 Inputs 8 M Maximum input range 3 O Operating environment 8 Oscilloscope probe 7 Overload protection 8 P PC connection 8 PC oscilloscopes 2 4 PicoLog software 2 Calibration 3 Contact details 5 Data logger 2 Dimensions 8 Humidity 8 Vertical resolution 8 Voltage ranges 8 Copyright 2005 Pico Technology Limited All rights reserved Pico Technology Ltd The Mill House Cambridge Street St Neots PE19 1QB United Kingdom Tel 44 0 1480 396 395 Fax 44 0 1480 396 296 Web www picotech com PS2000044 1 0 7 6 05
4. ch com Web site www picotech com PS2000044 1 0 Copyright 2005 Pico Technology Limited All rights reserved Product information 6 Product information 2 1 Minimum system requirements For PicoScope 2000 series PC Oscilloscopes to operate a computer with the minimum system requirements to run Windows or the following whichever is the higher specification is required Processor Pentium class processor or equivalent minimum Memory 32 MB minimum Disk space 10 MB minimum Operating system Microsoft Windows 98 SE ME Microsoft Windows 2000 XP or later Ports USB 1 1 compliant port minimum USB 2 0 compliant port recommended Must be connected direct to the port or a powered USB hub Will not work on a passive hub Copyright 2005 Pico Technology Limited All rights reserved PS2000044 1 0 PicoScope 2000 Series User Guide 2 2 Installation instructions Important Do not connect a PicoScope 2000 series PC Oscilloscope to the PC until you have installed the software Install the software by following the steps in the installation guide supplied with your oscilloscope Connect your oscilloscope to the PC with the USB cable supplied There is no need for an additional power supply as power is drawn from the USB port Checking the installation Once the software has been installed ensure that the oscilloscope is connected to the PC a
5. cross the screen so the total time interval is ten times the timebase USB 1 1 Universal Serial Bus Full Speed This is a standard port that enables you to connect external devices to PCs A typical USB 1 1 port supports a data transfer rate of 12 Mbps 12 megabits per second and is much faster than a serial port USB 2 0 Universal Serial Bus High Speed This is a standard port that enables you to connect external devices to PCs A typical USB 2 0 port supports a data transfer rate that is 40 times faster than that supported by USB 1 1 An additional feature of USB 2 0 is that it is backwards compatible with USB 1 1 Vertical resolution A value in bits related to the number of distinct input voltage levels that the oscilloscope can convert to digital values Calculation techniques can improve the effective resolution Voltage range The range of input voltages that the oscilloscope will measure in a given mode Copyright 2005 Pico Technology Limited All rights reserved PS2000044 1 0 11 PicoScope 2000 Series User Guide Index PicoScope 2000 series 2 3 4 6 7 PicoScope software 2 7 Power supply 8 Probe oscilloscope 7 A R Accuracy 8 Analog bandwidth 8 Repair 3 B S BNC connector 7 Safety symbols 2 Buffer size 8 Safety warning 3 Sampling rate maximum 8 C Scope probe 7 Spectrum analyser 2 System requirements 6 T D Temperature 8 Test equipment 3 U H USB 2 6 USB 1 1 6 USB 2 0 6
6. e more accurate the representation of the high frequency details in a fast signal PC Oscilloscope An instrument consisting of a PicoScope 2000 series PC Oscilloscope and the PicoScope software application PicoLog software This is a software product that accompanies all our oscilloscopes It turns your PC into a data logger and chart recorder PicoScope 2000 series A PC Oscilloscope range that includes the PicoScope 2202 PC Oscilloscope PicoScope software This is a software product that accompanies all our oscilloscopes It turns your PC into an oscilloscope spectrum analyser and meter display PS2000044 1 0 Copyright 2005 Pico Technology Limited All rights reserved Glossary 10 Real time continuous mode A sampling mode in which the software repeatedly requests single samples from the oscilloscope This mode is suitable for low sampling rates when you require the latest sample to be displayed as soon as it is captured Streaming mode A sampling mode in which the oscilloscope samples data and returns it to the computer in an unbroken stream This mode of operation is suitable when the input signal being sampled contains only low frequencies Timebase The timebase controls the time interval that the width of the scope display represents If you select Timebase is time per division in the Preferences dialog box in the PicoScope application it works like a traditional bench top scope There are ten divisions a
7. he licence is that it excludes usage in mission critical applications for example life support systems 1 7 Trademarks Windows and Excel are registered trademarks or trademarks of Microsoft Corporation in the USA and other countries Pico Technology Limited PicoLog and PicoScope are trademarks of Pico Technology Limited registered in the United Kingdom and other countries Copyright 2005 Pico Technology Limited All rights reserved PS2000044 1 0 PicoScope 2000 Series User Guide 1 8 1 9 Warranty Pico Technology warrants upon delivery and for a period of 24 months unless otherwise stated from the date of delivery that the Goods will be free from defects in material and workmanship Pico Technology shall not be liable for a breach of the warranty if the defect has been caused by fair wear and tear wilful damage negligence abnormal working conditions or failure to follow Pico Technology s spoken or written advice on the storage installation commissioning use or maintenance of the Goods or if no advice has been given good trade practice or if the Customer alters or repairs such Goods without the written consent of Pico Technology Company details Address Pico Technology Limited The Mill House Cambridge Street St Neots Cambridgeshire PE19 1QB United Kingdom Phone 44 0 1480 396 395 Fax 44 0 1480 396 296 Email Technical Support support picotech com Sales sales picote
8. ipment control and laboratory use standard 1 6 Licence conditions The material contained in this release is licensed not sold Pico Technology Limited grants a licence to the person who installs this software subject to the conditions listed below Access The licensee agrees to allow access to this software only to persons who have been informed of these conditions and agree to abide by them Usage The software in this release is for use only with Pico products or with data collected using Pico products Copyright Pico Technology Limited claims the copyright of and retains the rights to all material software documents etc contained in this release You may copy and distribute the entire release in its original state but must not copy individual items within the release other than for backup purposes Liability Pico Technology and its agents shall not be liable for any loss damage or injury howsoever caused related to the use of Pico Technology equipment or software unless excluded by statute Fitness for purpose Because no two applications are the same Pico Technology cannot guarantee that its equipment or software is suitable for a given application It is your responsibility therefore to ensure that the product is suitable for your application Mission critical applications This software is intended for use on a computer that may be running other software products For this reason one of the conditions of t
9. nd start the PicoScope or PicoLog software The software should now display the voltage that you have connected If you are using a scope probe and PicoScope you should see a small 50 Hz or 60 Hz mains signal in the oscilloscope window when you touch the scope probe tip with your finger Standard oscilloscope connectors PicoScope 2000 series PC Oscilloscopes have standard oscilloscope connectors The input impedance is also standard so the x10 function on scope probes works correctly D DEE OQ e USB port connector LED When lit indicates the oscilloscope is sampling data Channel A input Channel B input D D Ph PS2000044 1 0 Copyright 2005 Pico Technology Limited All rights reserved Product information 8 2 3 2 4 Specifications PicoScope 2202 Vertical Resolution 8 bits Analog Bandwidth 2 MHz Maximum Sampling Rate Single channel 20 MS s Dual channel 10 MS s Buffer Size Single channel 32 ksamples Dual channel 16 ksamples Inputs 2 channels with BNC sockets 1 MQ impedance AC DC coupling 20 pF input capacitance Voltage Ranges 50 mV to 20 V ranges in 1 2 5 steps Accuracy 3 voltage 100 ppm time Operating Environment Temperature range 0 C to 70 C 20 C to 30 C for quoted accuracy Humidity 25 to 75 RH Overload Protection 100 V PC Connection USB 2 0 Compatible with USB 1 1 Power Supply From USB port 4 6 to 5 25 V
10. oscope to collect a block of data into its internal memory before stopping the oscilloscope and transferring the whole block into computer memory This mode of operation is suitable when the input signal being sampled contains high frequencies Note To avoid aliasing effects the sampling rate must be greater than twice the maximum input frequency Buffer size The size of the oscilloscope buffer memory The buffer memory is used by the oscilloscope to store data temporarily This allows the oscilloscope to sample data independently of the speed at which it can transfer data to the computer Device Manager Device Manager is a Windows applet that displays the current hardware configuration of your computer On Windows 98 or Windows ME right click on My Computer and choose the Device Manager tab On Windows 2000 or Windows XP right click on Mu Computer choose the Hardware tab and select Device Manager Driver A software application that controls a piece of hardware The driver for the PicoScope 2000 series PC Oscilloscopes is supplied in the form of a 32 bit Windows DLL This is used by the PicoScope and PicoLog software to control the oscilloscopes Maximum sampling rate A figure indicating the maximum number of samples the oscilloscope is capable of acquiring per second Maximum sample rates are usually given in MS s megasamples per second or GS s gigasamples per second The higher the sampling speed of the oscilloscope th
11. t 2005 Pico Technology Limited All rights reserved Introduction 2 1 Introduction 1 1 Overview The PicoScope 2000 series is a range of low cost high performance PC Oscilloscopes fully USB 2 0 capable and backwards compatible with USB 1 1 There is no need for an additional power supply as power input is from the USB port so these oscilloscopes are highly portable With the PicoScope software you can use PicoScope 2000 series oscilloscopes as PC Oscilloscopes and spectrum analysers with the PicoLog software you can use them as data loggers A PicoScope 2000 PC Oscilloscope is supplied with the following items USB cable for use with both types of USB port Software CD Quick start guide Please read the important information in this introductory section and then proceed to the Installation instructions 1 2 Safety symbols Symbol 1 Warning Triangle A This symbol indicates that a safety hazard exists on the indicated connections if correct precautions are not taken Ensure that you read all safety documentation associated with the product before using it Symbol 2 Equipotential This symbol indicates that the outer shells of the indicated BNC connectors are all at the same potential shorted together You must therefore take necessary precautions to avoid applying a potential across the return connections of the indicated BNC terminals as this may result in a large current flow causing damage to
12. t does not have a protective safety earth Repairs The oscilloscope contains no serviceable parts Repair or calibration of the oscilloscope requires specialised test equipment and must be performed only by Pico Technology FCC notice This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense For safety and maintenance information see the safety warning PS2000044 1 0 Copyright 2005 Pico Technology Limited All rights reserved Introduction 4 1 5 CE notice The PicoScope 2000 Series of PC Oscilloscopes meets the intent of the EMC directive 89 336 EEC and has been designed to EN61326 1 1997 Class B Emissions and Immunity standard Products from the PicoScope 2000 series also meet the intent of the Low Voltage Directive and have been designed to meet the BS EN 61010 1 2001 IEC 61010 1 2001 safety requirements for electrical equ
13. the product and or connected equipment Copyright 2005 Pico Technology Limited All rights reserved PS2000044 1 0 PicoScope 2000 Series User Guide 1 3 1 4 Safety warning We strongly recommend that you read the general safety information below before using your oscilloscope for the first time Safety protection built in to the equipment may cease to function if the equipment is used incorrectly This could cause damage to your computer or lead to injury to yourself and others Maximum input range PicoScope 2000 Series PC Oscilloscopes are designed to measure voltages in the range 20 V to 20 V Any voltages in excess of 100 V may cause physical damage Mains voltages Pico Technology products are not designed for use with mains voltages To measure mains use a differential isolating probe specifically designed for a high source voltage Safety grounding PicoScope 2000 Series PC Oscilloscopes connect directly to the ground of a computer through the interconnecting cable provided This method minimises interference As with most oscilloscopes avoid connecting the ground input to any source other than ground If in doubt use a meter to check that there is no significant AC or DC voltage between the ground input of the oscilloscope and the point to which you intend to connect it Failure to check may cause damage to your computer or lead to injury to yourself and others You should assume that the produc
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