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Fluke PM3370B Input Impedance 200 MHZ Models only, Toggle key to switch a channel on/off, Ac/Dc

Models: PM3370B

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FUNCTION REFERENCE

5 - 41

Key sequence:

ON

Toggle key to switch a channel on/off.

TRIG VIEW

Toggle key to switch the display of the External Trigger signal on/off.

AC/DC/GND

Toggle key for vertical input coupling of the input channels.

AC/DC

Toggle key for vertical input coupling of the External

Trigger input.

INPUT IMPEDANCE (200 MHZ MODELS ONLY)

Description:

For high-frequency measurements the input impedance can be switched from 1 MΩ to 50Ω. Input impedance is automatically adapted to the type of probe. Manual switching is done with the toggle key 50Ω in the VERT MENU menu. The 50Ω input is not available for the EXT TRIG.

The input is protected in the 1 MΩ as well as the 50Ω setting:

-1 MΩ: protected for signals up to 400V.

-50Ω: protected for peak voltages up to 50V or up to 5V rms.

For details, refer to the Reference Manual.

Key sequence:

Toggle key to switch 50Ω input impedance of CH1.

..

Toggle key to switch 50Ω input impedance of CH..

Image 161

Fluke PM3370B user manual Input Impedance 200 MHZ Models only, Toggle key to switch a channel on/off, Ac/Dc/Gnd

Contents

Qvwuxphqw Fluke Industrial B.V Reference Manual also contains IIIReference Manual Main Features Page Or model number Following parts should be included in the shipmentVII Contents Screen Controls Auto Setup HOW to USE More Advanced FunctionsGetting Started -1 3.1 FRONT-PANEL Layout More Advanced Trigger FunctionsContents Contents XII CH1 XiiiCH2 CH3Line XIVMOD Main TB Gate CH1 Y-OUTDTB Gate Ieee 488.2 BUS OptionIntroduction Safety PrecautionsOperators Safety Measuring Earth SymbolsImpaired Safety Protection Installation Instructions Safety InstructionsProtective earthing Mains voltage cord, mains voltage range and fusesRear View Memory BACK-UP Batteries Installation of batteriesFront Cover General informationIeee 488.2/IEC 625 BUS Interface Option Handle Adjustment and Operating Positions of the InstrumentVersions RS-232-C Serial InterfaceRack Mounting Getting Started FRONT-PANEL LayoutSwitching on the Instrument Screen control area Screen ControlsConnect the probe as shown in figure Auto SetupST5952 Other Criteria Mode Switching Between Analog and Digital Operating ModesSignal Criteria Analog Mode Digital Mode Signal with an ampli Getting Started Signal Criteria Analog Mode Digital ModeTude of 2 to 6.4 divi SionsReconnect the probe to the Probe Adjust signal for display Vertical SetupAC Input Coupling Getting Started Timebase setup Timebase SetupMagnify Expand Direct trigger setup Direct Trigger SetupSummary PRE-TRIGGER View Menu keys and softkeys More Advanced FeaturesCursor Operation Vertical cursors ’’ or the horizontal cursors ’=’ More Advanced Trigger Functions 10 More advanced trigger setupPress the Status key and Text OFF key at the same time for More Signal Detail with the Delayed TimebaseStandard Setup MTB1.00ms Ch1 Select Clear & Protect Select Clear ALL Trace StoragePress the Recall key Here is how traces are stored in memoryPM3394B 200 MHz Full Four Channel Oscilloscope HOW to USE the InstrumentPM3384B 100 MHz Full Four-Channel Oscilloscope PM3390B 200 MHz 2 Channel OscilloscopePM3380B 100 MHz 2 Channel Oscilloscope PM3370B 60 MHz 2 Channel OscilloscopeFront Panel Layout HOW to USE the Instrument Recall Standard Setting Display and Probe AdjustmentsDisplay Adjustment Simultaneously press the Status and Text OFF keysDisplay Layout Press the Text OFF key three times Menus Text OFFOff T Repeat this adjustment for the second probe CAL Signal and Probe AdjustmentAnalog and Digital Modes Divisions Autorange attenuator Not available Results in aAn amplitude of 2 to Analog to Digital Mode Switching Standard SettingPress the Autoset key for optimum signal display Press the Analog key againPress the RUN/STOP key 12HOW to USE the InstrumentTrace Storage RUN/STOP Vertical Deflection Vertical Coupling AC, DC, GND 14HOW to USE the InstrumentPress the AC DC GND key once for DC input coupling Press the AC DC GND key to obtain ground couplingPress the AC DC GND key again to obtain ac input coupling Vertical PositionAdjust Ampl to 100 mV 16HOW to USE the InstrumentVertical Amplitude Press the upper key of the Ampl keysVertical Variable Amplitude Verticalauto RangePress the Auto Range key Press the upper Ampl key oncePress the Analog key to switch to the Digital mode 18HOW to USE the InstrumentPress the Analog key to return to the analog mode Vertical CH1+CH2Vertical Invert Vertical Menu Bandwidth Limiter 20HOW to USE the InstrumentPress the ’BW LIMIT’ softkey to turn it on Press the ’BW LIMIT’ softkey to turn it off againRemove the input signal from CH1 Vertical Probe Range IndicatorVertical Menu Connect the probe againHorizontal Deflection and Triggering Signal is displayed with four periods on the screenTimebase TIME/DIV Set the timebase to 200 μsTimebase Main TB VAR Timebaseauto RangeDisplay of 2 to 6 waveform periods Press one of the TIME/DIV keysTimebase Magnify 24HOW to USE the InstrumentVisible by turning the X POS control Press the right Magnify keyTurn the X POS control clockwise Timebasex POSTriggering Triggerslope 26HOW to USE the InstrumentTrigger Source Turn the Trigger Level control Trigger Trigger LevelSet the delay to 0 with Trigger Position Press the Analog key to select the digital modeTrigger Trigger Position Turn the Trigger Position control counterclockwiseTrigger Single Shot Digital Acquisition and Storage Advanced Vertical Functions Acquire Average 32HOW to USE the InstrumentAcquire Peak Detection Acquire EnvelopePress the first softkey to select ’tv’ trigger mode Trigger ModeAdvanced Horizontal and Trigger Functions Press the Trigger keyPress the ’level-pp’ softkey to turn it off 36HOW to USE the Instrument Trigger Mode TriggeredPress the TB Mode key Move the indicator T- in and out of the signal rangePress the ’STOP on TRIGGER’ softkey to select ’yes’ Trigger Mode RollTrigger Line 38HOW to USE the InstrumentSlowly vary the frequency of the sine-wave input signal Trace Storageclear & Protect Memory FunctionsPress the ’yes’ confirm softkey Press the ’yes’ confirm softkey againTrace Storage Save 40HOW to USE the InstrumentTrace Storage Clear Select memory location ’m1’ Press the ’save’ softkeyPress the ’COPY’ softkey Trace Storage CopyTrace can be copied from one memory location to another Trace Storage Recall 42HOW to USE the InstrumentTurn the POSition control Live trace shiftsTrace Storage Recalling Multiple Traces Trace Storage Saving Multiple TracesPress the softkey next to ’yes’ Press the Recall menu keyTime measurements. These can be done in digital 44HOW to USE the InstrumentCursors Functions Cursors Time Cursors ON/OFFCursors Amplitude & Time 46HOW to USE the InstrumentCursors Volt ΔV, V1, V2, ΔV-ratio for voltage measurements Cursors ReadoutPress the softkey next to ’READOUT’ Adjust the cursors to a distance of half a signal period Cursors Readout ΔT-RATIO/PHASE48HOW to USE the Instrument Measurement Functions Start with the standard setting.This ensures a correct startMEASUREMEAS1-PKPK 50HOW to USE the InstrumentMeasure MEAS1-RMS Press the second softkey to turn MEAS1 to ’on’Remove the Probe Adjust signal from channel Measure DelayPress the first softkey to select ’delay’ Measure Meas 2-FREQMeasure Cursor Limit 52HOW to USE the InstrumentMeasure TOUCH, Hold & Measure Procedure to set up for TOUCH, Hold and Measure isProcessing Functions Press the softkey next to Math 1 to enter the Math 1 submenu Mathematics FilterMathematics Multiply 56HOW to USE the InstrumentSwitch Math 2 off again Analog Display Defl Display Functions50Hz Digital Display Remove the signal from channelScope ’runs’ once and a signal appears on the screen 60HOW to USE the InstrumentUse the Track control to adjust Vert Magnify to Digital Display Vert MagnifyPress the bottom softkey to select ’sine’ Digital Display InterpolationPress the bottom softkey to select ’dots’ Connect the Probe Adjust signal to channels 1 Press Autoset 62HOW to USE the InstrumentDigital Display Windows Screen displays two or four traces nowDelayed Timebase Delayed TimebaseDelayed Timebase DEL’DTB has two basic functions Press the Text OFF button to turn off the menuPress either key of the Del’dTB TIME/DIV keys 64HOW to USE the InstrumentStart with the Standard Setup Delayed Timebase Trace SEPDelayed Timebase Trigger Press the Trig 1 key in the CH1 section a few times Press the softkey to select the TRIG’D modeDelayed Timebase Coupling Delayed Timebase Trigger LevelSET Standard First set the instrument to the standard settingHard Copy Facilities 9600, 8, N, 3wire, XON/XOFF=ON Utility Print SetupTo set up the layout of the printer hard copy Now you are ready to make the hard copyHP7475A, HP7470A, Hpgl = standard HPGL, PM8277 and PM8278 Utility Plot SetupAutoset Standard Autoset and Setup Utilities72HOW to USE the Instrument SetupsAutoset User Programmable Position the trace in the bottom of the screenTo recall a previously stored setting This setup can be saved in memory as followsSetup Recall a Sequence Setup Text Label74HOW to USE the Instrument AutocalOther Features Function Reference Function ReferenceDescription Acquisition LengthKey sequence Memory ExpansionINV Toggle key to switch the inverted display of CH2 CH4 on/offADD Invert Subtract Result = S1 + S2 ADD MathematicsMathematical description CPL QW Command to query a waveform Refer to for full details Remote commandsALT/CHOP Alternate and chopped modes are shown in the figures below Analog ModeToggle softkey to select ALTernate or CHOPped mode Auto Range Toggle key to switch between analog mode and digital modeAnalog Auto RangeAutoset CPL AS Command for Auto Setup Refer to for full detailsAutoset Key to start the autosetAutoset Sequence Utilityautoset Autoset UserprogVert TrigAutoset CPL AS Command for an Auto Setup Refer to for full detailsControl to select the Average factor Key to switch the Average function on or offEffect of bandwidth limiter CAL CPL CL Command for Calibrate Refer to for full detailsCalibration Autocal CHANNEL/TRACE Selection Confidence Check Power on OFFCursors Volt cursors are used for CursorsVoltage measurements. When More than one channel is on, Desired channel for voltageTrack Function Reference Cursors BothMeasured Cursors Readout TimeFunction Reference Cursors Readout Volt Full description is given under Delayed Timebase DelayEvent delay Trigger positionCH1 Slope Delay Measurement Delayed Timebase DEL’D TB Delay Function of ’mtb+dtb’, Delay and Trace SEPToggle switch to switch between analog mode and digital mode Digital ModeInterpolation Display MenuLines are drawn between sample points Display Text Amplitude variation AM Variation FM or jitter Display of signal withAmpl External Trigger 2 Channels Models onlyTrig View Filter Glitch Trigger Hold OFF Hold OFF Using Hold OFF to suppress double triggeringControl to adjust Main TB hold off time Function of key pair AMPL/VAR Input Attenuator Manual + AutomaticInput Coupling Toggle key to switch the Auto Range function on/offAuto RangeInput Impedance 200 MHZ Models only Toggle key to switch a channel on/offAC/DC/GND AC/DCPattern Logic Trigger 4 Channels Models onlyState Ift2 To adjust t2Glitch Refer to Glitch Trigger functionFunction of the timebase magnifier and X POS control Magnify HorizontalLeft side decreases the Magnify factor Magnify VerticalFunction of vertical magnifier and Y POS control Control to select the vertical magnification46FUNCTION Reference Main Timebase Manual + AutomaticFunction of key pair TIME/DIV VAR VAR nsMeasure Menu MathematicsPositive and negative, preshoot positive and negative Following measurements are availableVolt Multiply Mathematics Result = S1 x S2 Peak Detection POS Toggle key to switch the peak detection on/offPrinting and Plotting Power SupplyToggle key to switch the oscilloscope on/off Layout InterfacePrinter or plotter Real-time clock Toggle softkey to plot trace information Probe Utilities Key to switch from remote to local Remote Control IeeeControl to select the Ieee device address StatusOdd Even Remote Control RS-232Parity LL Inhibits front key Status Local Refer to for full details RUN/STOP Screen Controls and Graticule Rise time measurement using the graticuleScreen controls and function Trace RotationScreen Messages Auto SettingAlways Parity if 7 Bits Autocal NecessaryCalibration Error Auto Setting UserprogramKEY Inactive When Stopped No Average in Roll ModeNo Envelope in Roll Mode No DTB in Roll ModeNo Event DELAY, Dual Slope No Event Delay in TV ModeSetup Protected Setup EmptySTD Setup = Recall only TIME/DIV AdjustedSetups Track Setups Sequence Std memory selection Standard Setup / Front Panel ResetSoftkey to recall ’std’ settings Status Screen Result = S1 S2 Subtract mode is available in the digital mode of operationSubtract Mathematics Control to select the Subtract process Text OFF Timebase ModesSelected, the TB Mode menu provides a ‘STOP on TRIGGER’ Flows ‘through’ the screen from left to right. When Roll isTRIGGER’ is set to ‘on’, the trace stops when the scope is Acquired waveform is stored in a different memory locationTime Measurements Function Reference Time TOUCH, Hold & Measure Mode Trigger Coupling Ac dc lf-rej Trigger hf-rej Trigger DEL’D TB DelayToggle softkey to switch DEL’D TB ’on’ Trigger Level control ranges in level-pp on and off Trigger Main TB Trig Toggle key to select CH1, CH.. or Exttrig as Main TB Function of Trigger Level and slopeSlope to change between positive and negative trigger EdgeTV Trigger Key sequence Usertext Utility Maintenance Util Menu Utility Screen & Sound Sn = nth sample j=n=k Volt Measurements× S n Falling presh = Oversh Overshoot100% Limit Deflection X-DEFL, X vs Y Toggle softkey to switch X vs Y on CPL Protocol CommandsResponses AcknowledgeData Separators Program data separatorProgram frame Example Program Frame4THE CPL Protocol Commands in Functional OrderCommands in Alphabetical Order Name Command ReferenceAcknowledge Command Response8THE CPL Protocol ARM TriggerCalibrate 10THE CPL Protocol Default SetupGO to Local 12THE CPL Protocol GO to RemoteIdentity string IdentificationExample response Local Lockout 16THE CPL Protocol Program CommunicationXonxoff HWLApprox .5 sec after an acknowledge = 0 is received, 18THE CPL Protocol Program SetupCount Node Pds Count NodeChar Program TextPds Char Character Description Examples of user text Program Waveform Sample checksum Admin Pds Count22THE CPL Protocol Pds WavenrAction by Parameter Type Example Oscilloscope Notes Example LSB = Sample and &HFF Example programQuery Measurement Results is returned cancelling is possible by sending Ascii26THE CPL Protocol Numerical values of an infinite number of measurementValue Parameter specified Value,value T2-trgPoint notation, e.g E-09 MeasvalueOr Hz Example of a single measurementNull Query PrintExample Written in Quick Basic 30THE CPL ProtocolOscilloscope, e.g =10 hex Query SetupCount Number of strings to follow Node Example response PM3394 Complete setup queryUser text is returned Query TextPrinted, e.g Query Waveform Admin Count Sample ChecksumParameter Type Example Wavenr The oscilloscope waveform sourceInput #1,NM$ Symbol Parameter Value Type SettingsInterpretation of waveform data DisplayFormula’s DefinitionsSn = Yz + Yn * Yr * Yu SensitivityTime base = 50 * Xr * Xu/div Time baseReset Instrument 42THE CPL Protocol Recall SetupPds Setup reg Represents the setup register number, ranging from 1 Save Setup44THE CPL Protocol StatusExample status 46THE CPL Protocol Trigger AcquisitionExecution error Ok, normal situation Syntax errorSynchronization error AcknowledgeStatus Example program to investigate status Common vertical settings SetupCommon horizontal settings Main Timebase settingsCursor settings Hex Dec Meaning Events Trigger Delay settingsCursor autosearch settings Measurement 1 settings Measurement 2 settingsNnllxxxxxx.......xx Acquire Menu Structure Appendix a Acquire menu structureDigital Appendix B Cursors menu structureCursors menu structure Display Menu Structure Appendix C Display menu structuredMathematics Menu Structure Appendix D Mathematics menu structureMeasure Menu Structure Appendix F DTB DEL’D TB menu structure SAVE/RECALL Menu Structure Setups Menu Structure Appendix H Setups menu structureTB Mode Menu Structure Appendix J TB Mode menu structureDiv T Appendix K Trigger menu structureTrigger menu structure Appendix L Utility menu structure Utility menu structure On off 50Ω CH1 50Ω CH2 50Ω CH3 50Ω CH4 Vertical Menu StructureVert Menu Vertical BW Limit RTS RS-232 Cable ConfigurationsCTS DTRCable to controller with hardware handshake Cable to printer/plotter with hardware handshakeChannels Simultaneously Sampled AT 100 MS/s Appendix PChannel Acquisitions Expansion and Interpolation Function Index Function Index see ChapterFunction Index Index Delayed Timebase Trigger DEL’D TB TOUCH, Hold & Measure ModeDisplay and Probe Adjustment Display Functions Display Menu Measure Menu Time Measuremens Volt MeasurementsInstallation Instructions Appendix N Printing and Plotting Remote Control IeeeUtil Maintenance Glitch Trigger GND Input CouplingPrinting and Plotting Remote Control RS-232 CHANNEL/TRACE Selection SetupsMemory Functions Memory BACK-UP BatteriesTimebase Modes Delayed Timebase Autoset and Setup Utilities Setups Setups SequenceScreen Messages Utility Screen & Sound Timebase ModesAdvanced Vertical Functions 8FUNCTION IndexCursors Readout Measure Menu Volt Measurements Display Menu Deflection