PicoScope 4000 Series Automotive Oscilloscope User`s Manual
Contents
1. ICO Be PicoScope 4000 Automotive PC Oscilloscopes User s Manual ps4000a en 1 Copyright 2008 Pico Technology Ltd All rights reserved Contents N Contents o sie OPEP RD DE PR NEE GENERIERT DR Teheran 1 VOVERVIEW L nine ntm aa a aaa st elite an asc ns ess niet moe de AEO ts scene 1 2 Minimum PC requirements seen 1 3 Installation instructions rear a mnt 2 4 Safety symbols FRE Re Vib cc Re dd nn eee EEE AEE M rl E Ne eee RP 3 5 Safety warning PE PTE EEE POUPEE PE MERE NEED DAI ENE DOAR PEER RN 3 6 ECC notice lan AR ne on ete 4 TCE notice siria Ria A AA AA AAA AA AA AAA a AAA 4 8 Legal information A in ne nn E mt ten en M nn nest ee mere 5 9 Company details mia assada ne aaa aa ea Sew dae Sho ef ess 6 2 Produet information ass tes Min ins Sin needs in eu 7 1 Specifications USE T ES LR E CS EE RN 7 3 Advanced Features iris rasas A A ne 8 1 Sampling Modest ner ie se 8 2 More on block mode E rire Re ac T 8 3 More on streaming mode cene PERES APR PR AR RSS ERRA TR aa Aas te ns M AE 8 4 AC DC coupling RETRO ER E ede bescstaccusesesasevouecasuevelsczessedeuececduces coucavcdeauedsccussdducussousesouscasncuabedaysevesed una ren eugene 8 5 Oversampling TE 8 Gl955ary Sense 9 Index ennemie DR 11 Copyright 2008 Pico Technology Ltd All rights reserved ps4000a en Introduction 1 1 2 Introduction Overview The PicoScope 4000 Series Automotive 9 Oscilloscopes are a range2. memory When the oscilloscope has collected the whole block it will signal it is ready and transfer the whole block into the computer memory via the USB 101 port The maximum number of samples in each block depends upon the size of the oscilloscope s memory More on streaming mode In streaming mode the computer prompts the PicoScope 4000 Series Automotive Oscilloscope to start collecting data The data is then transferred back to the PC without being stored in oscilloscope memory Data can be sampled with a period of between 1 ms and 60 s and the maximum number of samples is limited only by the amount of free space on the PC s hard disk AC DC coupling Each channel can be set to either AC or DC coupling When AC coupling is used any DC component of the signal is filtered out This mode is useful for viewing ripple on signals such as the alternator and fuel pump currents where the DC level of the signal is of no interest DC coupling is recommended for most other automotive measurements 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 Oversampling When the oscilloscope is operating in block mode at speeds that are less than maximum it is possible to oversample Oversampling is taking more than one measurement during a time int
3. of high speed PC oscilloscopes for automotive diagnostic use They are fully USB 2 0 10 capable and backwards compatible with USB 1 1101 There is no need for an external power supply as power is supplied from the USB port making these oscilloscopes highly portable The PicoScope 4000 Series Automotive Oscilloscopes are supplied with the PicoScope software which turns your PC into a powerful PC Oscilloscope 9 Your Automotive Oscilloscope is supplied with these items USB cable for use with USB 1 1 and USB 2 0 ports Automotive software and reference CD Quick start guide Minimum PC requirements For your PicoScope 4000 Series Automotive Oscilloscope to operate correctly you must connect it to a computer with the minimum requirements to run Windows or the following whichever is the higher specification Item Absolute Recommended Recommended minimum minimum full specification Operating system Windows XP SP2 or Vista 32 bit versions only Processor 300 MHz 1 GHz Memory As required 256 MB 512 MB Free disk space by Windows 1GB 2 GB Note 1 Ports USB 1 1 compliant port USB 2 0 compliant port Note 1 The PicoScope software does not use all the disk space specified in the table The free space is required to make Windows run efficiently Copyright 2008 Pico Technology Ltd All rights reserved ps4000a en PicoScope 4000 Series Automotive Oscilloscope User s Manual 1 3 Installation ins
4. resolution Voltage range The voltage range is the range between the maximum and minimum voltages that can be accurately captured by the oscilloscope ps4000a en Copyright 2008 Pico Technology Ltd All rights reserved Index 11 Index A AC coupling 8 AC DC control 9 Accuracy 7 Analog bandwidth 7 9 B Block mode 8 9 BNC connector 2 Buffer 8 Buffer size 7 9 C Calibration 3 Channels 7 8 Compliance 7 Contact details 6 D DC coupling 8 Dimensions 7 F Functions 8 Inputs 7 L Legal information 5 M Maximum input range 3 Memory buffer 8 O Operating environment 7 Oscilloscope probe 2 Overload protection 7 Oversampling 8 P PC connection 7 PC Oscilloscope 1 4 9 PC requirements 1 PicoScope 4000 Series Automotive 1 PicoScope software 1 2 9 Power supply 7 R Repair 3 Resolution vertical 7 8 9 S Safety warning 4 Sampling rate 7 9 Signal generator 2 Specifications 7 Spectrum analyser 1 9 Streaming mode 8 9 T Test equipment 3 Time interval 8 Timebase 9 U USB 1 9 V Voltage range 7 9 O Copyright 2008 Pico Technology Ltd All rights reserved ps4000a en 13 Copyright 2008 Pico Technology Ltd All rights reserved ps4000a en Pico Technology James House Colmworth Business Park Eaton Socon ST NEOTS Cambridgeshire PE19 8YP United Kingdom Tel 44 0 1480 396 395 Fax 44 0 1480 396 296 W
5. MQ impedance 22 pF 22 pF Voltage Ranges 1 100 V 50 V 20 V 10 V 5 V 2 V 1 V 500 mV 200 mV 100 mV 50 mV Accuracy Voltage 1 Time 50 ppm Operating Environment Temperature range 0 C to 45 C 20 C to 30 C for quoted accuracy Humidity 5 to 80 RH Overload Protection 200 V PC Connection USB 2 0 107 Compatible with USB 1 1 Power Supply From USB port 500 mA 4 6 V No external power supply required CE standard 4 FCC standard 445 10 MHz on 50 mV range Reduced to 20 MS s if channels A and B or C and D enabled O Copyright 2008 Pico Technology Ltd All rights reserved ps4000a en PicoScope 4000 Series Automotive Oscilloscope User s Manual 3 2 3 3 3 4 3 5 Advanced features Sampling modes PicoScope 4000 Series Automotive 9 Oscilloscopes 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 the required number of data points have been sampled This is called block mode 8 At very low sampling rates you may want to switch to streaming mode 8 This allows data to be transferred back to the PC as it is collected More on block mode In block mode the computer prompts a PicoScope 4000 Series Automotive 94 Oscilloscope to collect a block of data into its internal
6. 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 or her own expense For safety and maintenance information see the safety warning 3 CE notice The PicoScope 4000 Series Automotive 9 Oscilloscopes meet the intent of the EMC directive 89 336 EEC and are designed to the EN61326 1 1997 Class A Emissions and Immunity standard PicoScope 4000 Series Automotive products also meet the intent of the Low Voltage Directive and are designed to the BS EN 61010 1 2001 IEC 61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory use standard ps4000a en Copyright 2008 Pico Technology Ltd All rights reserved Introduction 5 1 8 Legal information The material contained in this release is licensed not sold Pico Technology 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 product
7. eb www picotech com ps4000a en 1 28 10 08 Copyright 2008 Pico Technology Ltd All rights reserved
8. erval and returning an average This reduces the effects of noise and increases the effective resolution 105 of the oscilloscope ps4000a en Copyright 2008 Pico Technology Ltd All rights reserved Glossary 9 4 Glossary AC DC control Each channel can be set to either AC coupling or DC coupling With DC coupling the voltage displayed on the screen is equal to the true voltage of the signal with respect to ground With AC coupling any DC component of the signal is filtered out leaving only the variations in the signal the AC component Aliasing Like all digital scopes the PicoScope 4000 Series cannot reliably capture signals with a frequency higher than half the scope s maximum sampling rate For example with a 80 MS s sampling rate the frequency limit is 40 MHz If the signal frequency exceeds this limit then a distorted waveform appears This distortion is called aliasing Analog bandwidth All oscilloscopes have an upper limit to the range of frequencies at which they can measure accurately The analog bandwidth of an oscilloscope is defined as the frequency at which a displayed sine wave has half the power of the input sine wave about 71 of the amplitude Block mode A sampling mode in which the computer prompts the oscilloscope 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 effect
9. eturn the product and software to your supplier within 28 days of purchase for a full refund Upgrades We provide upgrades free of charge from our web site at www picotech com We reserve the right to charge for updates or replacements sent out on physical media Trademarks Windows is a trademark of Microsoft Corporation Pico Technology and PicoScope are internationally registered trademarks of Pico Technology Ltd Copyright 2008 Pico Technology Ltd All rights reserved ps4000a en PicoScope 4000 Series Automotive Oscilloscope User s Manual 1 9 Company details Address Pico Technology James House Colmworth Business Park St Neots Cambridgeshire PE19 8YP United Kingdom Phone 44 0 1480 396 395 Fax 44 0 1480 396 296 Email Technical Support support picotech com Sales sales picotech com Web site www picoauto com ps4000a en Copyright 2008 Pico Technology Ltd All rights reserved Product information 7 2 Product information 2 1 Specifications PicoScope 4223 PicoScope 4423 Vertical Resolution 10 12 bits Analog Bandwidth 20 MHz Maximum Sampling Rate o Single channel Two channels Three or four channels Buffer Size One channel in use Two channels in use Three or four channels in use 80 MS s 80 MS s 80 MS s 80 MS s 20 MS s 32M samples 32M samples 16M samples 16M samples 8M samples 2 x BNC input 4 x BNC input 1 MQ impedance 1
10. ive when the input signal being sampled is high frequency Note To avoid aliasing 9 effects the maximum input frequency must be less than half the sampling rate Buffer size The size of the oscilloscope buffer memory The buffer memory is used by the oscilloscope to temporarily store data This helps to compensate for the differences in data transfer rate from one device to another 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 capability of the oscilloscope the more accurate the representation of the fine details in a fast signal PC Oscilloscope A generic term used to describe a PicoScope 4000 Series Automotive PC Oscilloscope and the PicoScope software application PicoScope 4000 Series Automotive An oscilloscope range comprising the PicoScope 4223 and PicoScope 4423 Automotive PC Oscilloscopes PicoScope software This is a software product that accompanies all our oscilloscopes It turns your PC into an oscilloscope spectrum analyser and meter display Spectrum analyser An instrument that measures the energy content of a signal in each of a large number of frequency bands It displays the result as a graph of energy on the vertical axis against frequency on the horizontal axis The PicoScope software includes a spectru
11. m analyser 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 effective when the input signal being sampled is low frequency Timebase The timebase controls the time interval across the scope display If you select Timebase is time per division in the Preferences dialogue box this works like a traditional bench top scope There are ten divisions across the screen so the total time interval is ten times the timebase Copyright 2008 Pico Technology Ltd All rights reserved ps4000a en 10 PicoScope 4000 Series Automotive Oscilloscope User s Manual USB 1 1 USB is the abbreviation for Universal Serial Bus 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 USB is the abbreviation for Universal Serial Bus 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 indicating the degree of precision with which the oscilloscope can turn input voltages into digital values Calculation techniques can improve the effective
12. ned to measure voltages in the range 100V Any voltages in excess of 200V may cause physical damage Mains voltages Pico Technology products are not designed for direct connection to mains line power sources TO measure mains use a differential isolating probe specifically designed for mains use Safety grounding PicoScope 4000 Series Automotive Oscilloscopes connect direct 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 Failure to check may cause damage to your computer or lead to injury to yourself and others You should assume that the product 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 only be performed by Pico Technology Copyright 2008 Pico Technology Ltd All rights reserved ps4000a en PicoScope 4000 Series Automotive Oscilloscope User s Manual 1 6 1 7 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
13. s or with data collected using Pico products Copyright Pico Technology Ltd 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 the licence is that it excludes use in mission critical applications for example life support systems Viruses This software was continuously monitored for viruses during production but you are responsible for virus checking the software once it is installed Support If you are dissatisfied with the performance of this software please contact our technical support staff who will try to fix the problem within a reasonable time If you are still dissatisfied please r
14. tructions Important You must install the PicoScope software 9 before connecting a PicoScope 4000 Series Automotive 9 Oscilloscope to your PC for the first time Install the software by following the steps in the quick start guide supplied with your oscilloscope You can then connect your oscilloscope to the PC To minimise the risk of electromagnetic interference please use the USB 0 cable supplied There is no need for an additional power supply as the unit draws its power from the USB port Checking the installation Once the software has been installed ensure that the oscilloscope is connected to the PC and then start the PicoScope software The software should now display the voltage of any signal that is connected to the oscilloscope If you plug in a test lead into the scope and touch the red clip or probe with your finger you should see a small signal caused by mains pickup or other electrical noise in the oscilloscope window Standard oscilloscope connectors The PicoScope 4000 Series Automotive 9 Oscilloscopes have standard oscilloscope connectors The input impedance is also standard so add on sensors and probes will work correctly Connector diagrams Rear view all models F Front view PicoScope 4223 E Front view PicoScope 4423 H A A ChA Input channel A Similarly for channels B C and D E LED Lights
15. up when the PicoScope 4000 Series Automotive Oscilloscope is first powered up switches off when the PicoScope software begins to run and then lights up again when the oscilloscope is sampling data F USB port connector Compatible with USB 1 1 and USB 2 0 ports ps4000a en O Copyright 2008 Pico Technology Ltd All rights reserved Introduction 3 1 4 1 5 Safety symbols Symbol 1 Warning Triangle A This symbol indicates that a safety hazard exists on the indicated connections if you do not take correct precautions Ensure that you read in detail 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 i e are 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 the product and connected equipment 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 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 4000 Series Automotive 9 Oscilloscopes are desig
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