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PRINCIPLE OF OPERATION

2 - 1

2 PRINCIPLE OF OPERATION

2.1

INTRODUCTION

This chapter describes the principle of operation and should be read in
combination with the block diagram in figure 2.1.

The block diagram shows the user in which sections of the oscilloscope circuitry
the controls and keys are operating, and how signals are routed. For a detailed
description of each function, refer to chapter 5 ’Function Reference’ in the
Operating Guide.

Lines between controls/keys and the block they are operating are interrupted. The
text ’

µ

C’ at the interruption indicates that the control operates the block via the

microComputer.

2.2

CONTROL SECTION

The heart of the control section is formed by a MICROCOMPUTER with an
incorporated RS-232 interface. The MICROCOMPUTER reads all the keys
(except POWER ON/OFF) and rotary controls. It sends control signals to the
oscilloscope circuits to put them in the desired mode. Control of the oscilloscope
functions can also be done by an external computer connected to the RS-232
CONNECTOR.

2.3

VERTICAL DEFLECTION

This section consists of the blocks VERTICAL CHANNELS and FINAL
VERTICAL AMPLIFIER. There are four vertical channels. In PM3370B/80B/90B
there are two vertical channels, CH1 and CH2, and an External Trigger (Trigger
View) channel. Small differences between the channels depend on instrument
versions. The inputs CH1 ... CH4 are applied to the block VERTICAL
CHANNELS. In this block the following functions are made:

-

Input coupling can be switched between AC, DC and GND. As an extra 50

Ω

input impedance can be selected in the 200 MHz models via the VERT MENU
key.

-

The AMPL/VAR key pair determines the input sensitivity of each channel. The
most suitable input sensitivity is selected automativally if AUTO RANGE is
active. Some channels may have a switch to toggle between the two most
commonly used input sensitivities.

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Содержание CombiScope PM3370B

Страница 1: ...I Autoranging CombiScope Instrument PM3370B PM3380B PM3390B PM3384B PM3394B Reference Manual 4 1 Dec 2000 ...

Страница 2: ...ovement Consequently this instrument may incorporate minor changes in detail from the information provided in this manual Copyright 1996 1998 Fluke Corporation All rights reserved No part of this manual may be reproduced by any means or in any form without written permission of the copyright owner Printed in the Netherlands Fluke Corporation Fluke Industrial B V P O Box 9090 P O Box 680 Everett WA...

Страница 3: ...een combined with an easy and logical operation to let you use the full power of this instrument each and every day If you have any comments on how this product could be improved please contact your local FLUKE organization FLUKE addresses are listed in the back of this REFERENCE MANUAL There is a USERS GUIDE available containing OPERATOR S SAFETY INSTALLATION INSTRUCTIONS OPERATING INSTRUCTIONS H...

Страница 4: ... There is a choice of two models with four fully featured channels and three models with 2 channels plus external trigger input all shown in the following table In the same instrument family there are two 200 MHz and two 100 MHz analog oscilloscopes that have specifications similar to the above mentioned analog digital combination oscilloscopes operating in analog mode All analog digital combinati...

Страница 5: ...FT Sine interpolation and magnification which enables true to life four channel single shot acquisitions with a timebase up to 625 ns div 32x magnified A delayed timebase with full trigger features An EIA 232 D interface standard and an GPIB IEEE 488 interface optional Autocal for automatic fine tuning of all circuitry to achieve maximum accuracy under all user conditions Closed case calibration f...

Страница 6: ...TB Delay Analog Mode Only 1 10 1 2 4 Timebase Settings Digital Mode Only 1 10 1 2 5 Timebase Delay Digital Mode Only 1 11 1 2 6 DTB Delay Digital Mode Only 1 11 1 2 7 Analog Timebase Accuracies 1 12 1 2 8 Delaytime Accuracy Analog Mode 1 12 1 2 9 DTB Jitter In Starts Analog Mode 1 12 1 2 10 Timebase Accuraries Digital Mode 1 12 1 2 11 DTB Jitter In Starts Digital Mode 1 12 1 2 12 External Horizont...

Страница 7: ...nels 1 24 1 9 4 Trace Memory 1 25 1 9 5 Acquisition Time 1 26 1 9 6 Resolution 1 26 1 9 7 Registers 1 27 1 9 8 Register Manipulations 1 27 1 9 9 Digital Acquisition Accuracies 1 28 1 10 FRONT PANEL MEMORY 1 28 1 11 BLANKING OR Z AXIS ONLY FOR ANALOG TRACE 1 28 1 12 DISPLAY 1 29 1 12 1 CRT 1 29 1 12 2 Modes 1 29 1 12 3 Vertical Display Manipulations Digital Mode 1 30 1 12 4 Horizontal Display Manip...

Страница 8: ...EMI 1 38 1 18 SAFETY 1 41 1 19 ACCESSORIES 1 41 1 20 OPTIONS OPTIONAL VERSIONS 1 42 1 20 1 Options Line cord 1 42 1 20 2 Options digital versions 1 42 1 20 3 Options analog 1 42 1 20 4 Specification optional outputs 1 43 1 20 5 Specification External trigger option 1 44 1 20 6 Specification IEEE OPTION 1 45 2 PRINCIPLE OF OPERATION 2 1 2 1 INTRODUCTION 2 1 2 2 CONTROL SECTION 2 1 2 3 VERTICAL DEFL...

Страница 9: ...rthogonality 4 7 4 3 5 Trace distortion 4 8 4 3 6 Vertical deflection deflection coefficients 4 9 4 3 7 Vertical deflection variable gain control range 4 11 4 3 8 Vertical deflection input coupling 4 11 4 3 9 Vertical cursor accuracy 4 12 4 3 10 Vertical deflection high frequency response 4 13 4 3 11 Vertical deflection low frequency response 4 14 4 3 12 Vertical deflection dynamic range at 15 25 ...

Страница 10: ...flection X deflection coefficient via CH1 4 35 4 3 31 Horizontal deflection X deflection coefficient via line 4 36 4 3 32 Horizontal deflection high frequency response 4 36 4 3 33 Maximum phase shift between horizontal and vertical deflection 4 37 4 3 34 MAIN TB triggering PM3390B 3394B trigger sensitivity via CH1 CH2 CH3 and CH4 EXT 4 38 4 3 35 MAIN TB triggering PM3370B 3380B 3384B trigger sensi...

Страница 11: ...CONTENTS XI 5 PREVENTIVE MAINTENANCE 5 1 5 1 GENERAL INFORMATION 5 1 5 2 REMOVING THE BEZEL AND THE CONTRAST FILTER 5 1 5 3 CLEANING 5 1 5 4 RECALIBRATION 5 1 5 5 MAINTENANCE 5 2 ...

Страница 12: ...th Electromagnetic Compatibility Directive 89 336 EEC Low Voltage Directive 73 23 EEC Sample tests Standards used EN61010 1 CAT II Pol 2 Safety Requirements for Electronic Measuring Apparatus EN 50081 1 1992 Electromagnetic Compatibility Generic Emission Standard EN55022 and EN60555 2 EN 50082 1 1992 Electromagnetic Compatibility Generic Immunity Standard IEC801 2 3 4 5 The tests have been perform...

Страница 13: ...ument is designed for indoor use only It has been designed and tested for measurements on 150 V rms Category II Pollution Degree 2 in accordance with the following standards EN61010 1 1993 IEC 1010 1 ANSI ISA S82 01 1994 CAN CSA C22 2 No 1010 1 92 UL3111 1 Installation Category II refers to local level which is applicable for appliances and portable equipment The apparatus has been supplied in a s...

Страница 14: ... 19 7 lb Operating positions a Horizontally on bottom feet b Vertically on rear feet c On the carrying handle in three sloping positions Note All items that refer specifically to only one mode analog or digital are identified in the leftmost column with an A or a D Figure 1 1 Dimensions ...

Страница 15: ...M3390B 1 1 2 Deflection Modes Analog Only MODES CH1 CH2 CH3 CH4 See Note 1 CH2 and CH4 can be inverted to allow CH2 or CH4 CH1 CH2 CH2 can be inverted to allow CH1 CH2 CH3 CH4 CH4 can be inverted to allow CH3 CH4 Automode Auto attenuator CH1 CH2 All models CH3 CH4 PM3384B 94B Windows ON See Note 2 CH1 CH2 All models CH3 CH4 PM3384B 94B Alternate Chopped Chopped mode Chopped freq 1 MHz Note 1 CH1 a...

Страница 16: ...o 40 C 100 MHz With external 50Ω Ambient 0 to 50 C 90 MHz With external 50Ω PM3370B Upper transition point of bandwidth Ambient 5 to 40 C 60 MHz With external 50Ω Ambient 0 to 50 C 55 MHz With external 50Ω BANDWIDTH LIMITER Upper transition point of bandwidth 20 MHz Note 1 PM3394B CH1 through CH4 in 50Ω position at BNC PM3390B CH1 and CH2 in 50Ω position at BNC 1 1 4 Attenuator PM3394B PM3384B CH1...

Страница 17: ...F tolerance 2 pF INPUT INPEDANCE PM3390B on CH1 in 50Ω pos and CH2 PM3394B all channels R parallel value 50Ω tolerance 1 VSWR typical 1 5 1 See Note 2 Note 1 BNC with Probe Readout pin which causes the instrument to change V div indication input impedance and attenuator setting according to the probe when equiped with a probe indicator Note 2 Measured up to 200 MHz input frequency in dc and ac cou...

Страница 18: ...e POSITION RANGE or 8 div Symmetrical 1 1 9 Trace Separation TRACE SEPARATION MTB and DTB Min range or 4 div MTB fixed DTB shifts 1 1 10 Max Input Voltage MAX INPUT VOLTAGE See Note 1 In high Z position According to EN61010 1 Cat II Pol 2 Max input voltage 150 V rms See Note 2 In 50Ω position dc 5V ac rms 5V See Note 3 ac peak 50V See Note 3 Note 1 The instrument should be properly grounded throug...

Страница 19: ...SPONSE See Note 1 Note 1 Calculated from the formula Rise time 0 35 Bandwidth and is measured over the central 5 divisions vertical 1 1 12 Signal Delay A VISUAL SIGNAL DELAY 15 ns PM3390B94B 13 ns PM3370B 80B 84B DELAY BETWEEN CHANNELS CH1 and CH2 250 ps PM3370B 80B 90B CH1 CH4 250 ps PM3384B 94B Figure 1 1 Max input voltage versus frequency ...

Страница 20: ...0 1 See Note 3 Of deselected channels at upper transition point 50 1 See Note 4 Between selected channels 50 1 See Note 5 CMRR See Note 6 at 2 MHz 100 1 at 50 MHz 25 1 Note 1 Add 1 5 for variable gain mode Note 2 2 division center screen signal with a frequency of 50 kHz shifted within central 6 divisions Note 3 At 10 MHz input to deselected channel equivalent to 8 divisions or less Note 4 Channel...

Страница 21: ...DTB triggered Starts on first trigger after delay time 1 2 2 Timebase Settings Analog Mode Only MTB PM3390B PM3394B Settings 0 5s div to 20 ns div See Note 1 Variable Time div range 1 25s div to 20 ns div MTB continuously variable MTB PM3370B PM3380B PM3384B Settings 0 5s div to 50 ns div See Note 1 Variable Time div range 1 25s div to 50 ns div MTB continuously variable DTB PM3390B PM3394B Settin...

Страница 22: ...G 200s div to 250 ns div See Note 1 and 4 ROLL 200s div to 200 ms div See Note 2 RANDOM SAMPLING PM3390B 94B 200 ns div to 2 ns div See Note 2 PM3370B 80B 84B 200 ns div to 5 ns div See Note 2 Variable Timebase 2 nsec 1 µsec div 1 2 5 sequence steps 1 µsec 500 µsec div 1 µsec step size 500 µsec 200 sec div equals analog step size Auto Timebase Capture Range DC up to full bandwidth Dynamic Range 2 ...

Страница 23: ...IGGER POSITION Acquisition length normal 10 to 0 div pretrigger Acquisition length max PM3384B 94B 640 to 0 div pretrigger PM3370B 80B 90B 160 to 0 div pretrigger note 1 DELAY 0 to 1000 div posttrigger Resolution steps of 0 02 div sample distance EVENTS DELAY Range 1 to 16384 See event counter Note 1 When extended memory option is installed Time delay of trigger position at max acquisition length ...

Страница 24: ... Note 1 Note 1 Add 1 of reading in variable mode Note 2 Valid over central unmagnified 8 divisions 1 2 8 Delaytime Accuracy Analog Mode MTB in 20 µs div 0 8 of reading See Note 1 DTB in 2 µs div 0 3 of central 8 div Tf PM3390B 94B Tf 4 ns PM3370B 80B 84B Tf 5 ns Note 1 add 1 of reading in variable mode 1 2 9 DTB Jitter In Starts Analog Mode Jitter 1 part of 25000 1 2 10 Timebase Accuraries Digital...

Страница 25: ...ection 6 1 7 div Between 49 and 61 Hz amplitude at 220 volts CHANNEL DEFLECTION Refer to VERTICAL Error limit 5 Over central 6 divisions Linearity error limit 2 See Note 1 Dynamic range up to 100 kHz 20 div up to 2 MHz 10 div POSITION RANGE 5 div FREQUENCY RESPONSE Upper transition point 2 MHz MAX PHASE DIFFERENCE Between horizontal and vertical 3 Up to 100 kHz Note 1 2 div 50kHz center screen sig...

Страница 26: ...B CH1 CH2 1 3 2 Modes MODES MTB triggering PM3384B 94B EDGE TV D PATTERN Enter exit pattern plus D STATE timed pattern D GLITCH PM3370B 80B 90B EDGE TV D GLITCH MODES DTB triggering EDGE 1 3 3 TV Systems TV systems TV See Note 1 HDTV See Note 1 TV Line 1 to n See Note 1 and 2 Note 1 Line selection possible in field1and field2 In digital mode triggered DTB not possible in combination with TV line N...

Страница 27: ...C 10 Hz LF reject 30 kHz HF reject dc Upper transition point of BW BW Bandwidth Trigger coupling DC AC See sensitivity LF reject HF reject 30 kHz BANDWIDTH EDGE TRIGGER DTB Vertical coupling in DC Lower transition point of BW BW bandwidth Trigger coupling DC dc AC 10 Hz LF reject 30 kHz HF reject dc Upper transition point of BW BW bandwidth Trigger coupling DC AC See sensitivity LF reject HF rejec...

Страница 28: ...o 60 MHz 1 2 div dc to 150 MHz 2 0 div See Note 2 TV TRIGGER SENSITIVITY ampl of sync pulse 0 7 div See Note 1 TRIGGER SENSITIVITY D PATTERN STATE PM3394B Rectangle pulses t 10 ns 1 0 div See Note 5 t 2 ns 2 0 div PM3384B Rectangle pulses t 20 ns 1 0 div See Note 5 t 4 ns 2 0 div Note 1 All figures are valid for an ambient temperature range of 5 to 40 C add 20 for ambient 0 to 50 C Note 2 Measured...

Страница 29: ...In TV triggering positive negative video Note 2 Only in single shot real time mode 1 3 7 Level LEVEL CONTROL RANGE MTB EDGE 8 div Unless In level p eak p eak See Note 1 TV Fixed D PATTERN STATE PM3370B 80B 90B and GLITCH 5 div glitch mode only LEVEL CONTROL RANGE DTB EDGE 8 div Note 1 The control range of the trigger level is related to the peak peak value and duty cycle of the trigger signal ...

Страница 30: ...ccuracy t1 t2 5 ns STATE DETECTION Not in PM3370B 80B 90B Max state rate 150 MHz Min setup time 2 5 ns Pattern to clock Min hold time 2 5 ns Pattern to clock Note 1 Timing behavior around t1 and t2 Pattern valid time TTTTTTTTTTTTTTTTTTT t1 t1 10 ns t2 10 ns t2 not triggered undefined T triggered 1 3 9 Trigger Accuracies TRIGGER LEVEL Accuracy edge 0 2 div At 1 MHz input signal D Accuracy logic 0 4...

Страница 31: ... selection or Event clock sensitivity DC to 50 MHz 0 5 div Event level 8 div Max count frequency 50 MHz typical value Note 1 In digital mode triggered DTB in combination with Event is not possible 1 5 HOLD OFF HOLD OFF SETTING A Minimum 2 µs or 3 divisions of MTB setting Whichever is greater A Maximum 2s or 20 divisions of MTB setting Whichever is smaller D Minimum 4 ms See Note 1 D Maximum 20 div...

Страница 32: ... channels CH1 and CH2 Note 2 Dynamic range in digital mode 5 div Note 3 Average factor 2 to 4096 in power of 2 sequence 1 6 2 Register Processing Digital Mode REGISTER PROCESSING FUNCTION See Note 1 Add See Note 2 Sub See Note 2 Mul See Note 2 Filter LF filter with adjustable 3dB point Note 1 There may be run two processes simultaneously The acquisition registers can also be used as source registe...

Страница 33: ...3370B 80B 90B Pulse width CH1 CH2 Rise fall Vertical with or without offset Mean RMS Maximum Minimum Peak peak PM3370B 80B 90B Low CH1 CH2 High Overshoot Preshoot Duty cycle Delay See Note 2 Note 1 These measurements can be performed on traces stored in the acquisition and memory registers Note 2 In PM3370B 80B 90B also available for EXT trigger source and external trigger memory ...

Страница 34: ... D Trace Follows the trace CURSOR MODES Time Amplitude Both Only screen cursor Amplitude cursor modes Absolute Ratio See Note 1 Time cursor modes Absolute Ratio See Note 1 Phase cursor Absolute See Note 1 Modes Ratio Note 1 The ratio range is 0 to 999 where 100 corresponds to the value in the cursor read out at the moment that the T 100 button is pressed ...

Страница 35: ...n memory Q1 and Q2 Note 3 Gives time differences delta between the cursor position and the trigger point for both cursors 1 8 3 Cursor Accuracies Analog Mode Voltage measurements Note 1 Manual 1 of FULL SCALE Time measurements Note 2 Unmagnified timebase 1 of FULL SCALE Magnified timebase up to 10 ns div 1 4 of FULL SCALE Magnified timebase in 5 ns div and 2 ns div 2 2 of FULL SCALE Note 1 Measure...

Страница 36: ...setting 1 9 3 Multiplexed Channels The 4 channel instruments have 4 channels configured as 2 2 This implies that the channels CH1 and CH2 are multiplexed with the channels CH3 and CH4 to share the same dual channel digitizer The Ext Trig channel TRIG VIEW is multiplexed the same way as CH4 Multiplexed channels CH1 and CH2 or CH3 and CH4 simultaneously See Note 1 Any other combination for timebase ...

Страница 37: ...by all channels connected to it The following section summarizes the effects Record length normal 1 and 2 channels selected 512 samples channel See Note 2 Record length Max See Note 1 and 4 2 channels selected 2K samples channel See Note 2 2 channels selected 4K samples channel See Note 3 1 of 2 channels selected 8K samples See Note 3 Display 501 samples trace Note 1 When peak detection or envelop...

Страница 38: ...length 512 6 ms measurements are active 500 ns div two channel Holdoff is min and no no trigger delay other processes or acquisition length 512 measurements are average 8 16 ms active Equivalent time See Note 2 Timebase at 2 ns div 2s at 0 2 µs div 100 ms Note 1 Time required to fill the acquisition record at the sampling rate corresponding with the selected timebase setting is not included Note 2...

Страница 39: ... Max 2x2K 3 sets Two traces View 2x4K Two traces 1x8K One trace WORD LENGTH 16 bits Note1 When extended memory installed number of register equal to four channel models One set contains max two traces trig view 1 9 8 Register Manipulations Clear The contents of the selected register is set to zero Save The contents of the acquisition register is stored in the selected register Copy The contents of...

Страница 40: ...EMORY Memory size 10 fronts 1 11 BLANKING OR Z AXIS ONLY FOR ANALOG TRACE Input connector BNC Input impedance 10 kΩ Input coupling dc Max input voltage 10V Input voltage unblank 0 5V or less See Note 1 Input voltage blanked 2 4 V or more See Note 1 Response time 80 ns Rise time 2 ns Note 1 Half tones are possible at input voltages between 0 8V and 2 4 V Blanking has only effect on the trace in ana...

Страница 41: ...sions Phospor Standard Green GH P31 GRATICULE Fixed Y AXIS ORTHOGONALITY 90 0 5 ACCELERATING VOLTAGE 16 5 kV Writing speed 1 8cm ns TRACE ROTATION Screwdriver adjustment Min range 10 External field 0 1 mT Min overrange 2 TRACE DISTORTION At center of screen 0 3 mm Deviation from straight line inside 6 x 8 div Else 1 0 mm 1 12 2 Modes PRESENTATION MODES Y versus T Y versus X ...

Страница 42: ...370B 80B 90B max 3 traces Recall trace Each trace can be made visible on the screen or can be removed from the screen Note 1 Vertical position 8 div Each trace can be moved over 8 divisions Max displayable traces on screen 8 See Note 1 Note 1 At least one trace is visible 1 12 4 Horizontal Display Manipulations Digital Mode TIMEBASE MAGNIFICATION 2 4 8 16 32 See Note 1 Note 1 For acquisition depth...

Страница 43: ...z Tolerance 20 Note 1 Positive going with respect to ground Open voltage halves when terminated with 1200Ω Note 2 When output short circuited halves when terminated with 1200Ω 1 13 2 Standard external interface TYPE OF INTERFACERS 232 C CPL compact programming language See operating guide PINNING PIN I O NAME 1 Not connected 2 I RXD Received data 3 O TXD Transmitted data 4 O DTR Data terminal read...

Страница 44: ... 19200 38400 See Note 1 NUMBER OF STOP BITS 1 PARITY odd even or no Default no parity See Note 1 CHARACTER LENGTH 7 or 8 Default 8 See Note 1 ERROR RESPONSE See CPL Chapter 6 in Users Manual ELECTRICAL TXD and RXD Spacing 0 3V Marking 1 3V RTS CTS DSR and DTR ON 3V OFF 3V Current output 10mA Impedance Output 300Ω 10 Input 3 kΩ 7kΩ Voltage Output 12V 12V Input 25V 25V Connector Shielded 9 pole RAP ...

Страница 45: ...t PRINTERS HP thinktjet LQ1500 FX80 HP LASER HP 540 PLOTTERS HPGL HP7440 HP7550 HP7475A HP7478A PM8277 PM8278 1 13 5 Real Time Clock RTC Select Time of trigger Note 1 or Time of pressing hardcopy button Note 2 Note1 These times may be the same when it is not possible to reconstruct the time of trigger Note2 Stamped on any hardcopy via hardcopybutton Time is part of delta transfer waveform ...

Страница 46: ...r an easy to read display of input signals or the user programble AUTO SET items 1 14 2 Calibration CALIBRATION FACILITIES Auto cal See Note 1 Note 1 Calibrates vertical offset and gain horizontal offset and gain and sweep time trigger offset and gain 1 15 POWER SUPPLY AND BATTERY BACKUP 1 15 1 Power Supply LINE VOLTAGE ac rms Operation 100V to 240V CAT II Pol 2 Tolerance 10 LINE FREQUENCY Nominal...

Страница 47: ... power source voltage 1 15 2 Battery Backup DATA AND SETTINGS RETENTION See Note 1 Retention time 2 years Batteries Recommended type LR 6 See Note 2 Quantity 2 Temperature range 0 70 C See Note 3 Note 1 When instrument is switched off or during power failure Note 2 According to IEC 285 Alkaline Manganese Penlight Battery Note 3 At 40 to 0 C settings retention is uncertain It is advised to remove b...

Страница 48: ...COOLING Regulated No air filter Forced air 1 17 ENVIRONMENTAL CHARACTERISTICS 1 17 1 General The characteristics are valid only if instrument is checked in accordance with the official checking procedure Warm up and recovery time are in accordance with MIL T 28800D par 3 7 1 1 The instrument meets the environmental requirements of MIL T 28800D Type III Class 3 Style D Color R unless specified othe...

Страница 49: ...ycling time 15 min Resonance search 5 min Resonance dwell 10 min See Note 5 Note 1 In accordance with MIL T 28800D par 3 7 2 1 1 FIGURE 2 Note 2 In accordance with MIL T 28800D par 3 7 3 Note 3 Maximum operating temperature derated to 3 C for each km above sea level Note 4 In accordance with MIL T 28800D par 3 7 4 1 Note 5 At each resonance frequency or at 33 Hz if no resonance was found SHOCK OPE...

Страница 50: ...s Conducted Emissions Part 2 CEO1 Narrow band Part 4 CEO3 Conducted Susceptibility Part 2 CSO1 Part 5 CSO6 Limited to 300V Radiated Emissions Part 5 6 REO1 Part 2 REO2 1 GHz max 1 17 3 2 CE 89 336EEC Meets harmonized product requirements of 89 336EEC EN50081 1 and EN50082 1 with addition of the tables 1 to 8 1 17 3 3 Additional EMI requirements The instrument is tested in accordance with IEC 351 1...

Страница 51: ...ceptibility no visible disturbance Frequencyrange 25 MHz 1 GHz E 0 1V m E 1 V m E 3 V m Stand alone 2 mV div 5 V div 2 mV div 5 V div 10 mV div 5 V div With PM9010 09x 2 mV div 5 V div 100 mV div 5 V div 500 mV div 5 V div Table 3 Susceptibility disturbance less than 10 of full scale Frequencyrange 10 kHz 25 MHz E 0 1V m E 1V m E 3 V m Stand alone N A N A N A With PM9010 09x N A 5 mV div 10 mV div...

Страница 52: ...eptibility no visible disturbance Frequencyrange 25 MHz 1 GHz E 0 1V m E 1 V m E 3 V m Stand alone 2 mV div 5 V div 2 mV div 5 V div 10 mV div 5 V div With PM9020 09x 2 mV div 5 V div 100 mV div 5 V div 200 mV div 5 V div Table 7 Susceptibility disturbance less than 10 of full scale Frequencyrange 10 kHz 25 MHz E 0 1V m E 1V m E 3 V m Stand alone N A N A N A With PM9020 09x N A 5 mV div 10 mV div ...

Страница 53: ...power plug CSA C22 2 Except for power cord No 1010 1 92 unless shipped with Cat II Pol 2 Universal North American power plug Installation Category II refers to local level which is applicable for appliances and portable equipment APPROVALS applied for CSA C22 2 No 1010 1 MAX X RADIATION MIL T 28800D par 3 9 3 4 a 1 19 ACCESSORIES PACKED WITH INSTRUMENT Signal input 2x10 MΩ 10 1 probe With readout ...

Страница 54: ...stralian In accordance with SAA Swiss In accordance with SAV 1 20 2 Options digital versions EXTERNAL INTERFACES IEEE Factory installed only INTERNAL EXTENSIONS EXTENDED MEMORY Factory installed only MATH Factory installed only 1 20 3 Options analog EXTERNAL INTERFACES Y out MTB gate See Note 1 DTB gate ExtTrig Factory installed only IEEE Factory installed only Note 1 Ext trig is a standard featur...

Страница 55: ...0 into 50Ω 10mV div 10 Freq response Terminated with 50Ω PM3390B 94B dc to 200 MHz PM3380B 84B dc to 100 MHz PM3370B dc to 60 MHz Dynamic range 10 div At 50 MHz MTB GATE OUT Connector BNC Output impedance 1 kΩ Voltage Timebase not running 0 2 0 2V Timebase running 3 7 1 3V DTB GATE OUT Connector BNC Output impedance 1 kΩ Voltage Timebase not running 0 2 0 2V Timebase running 3 7 1 3V ...

Страница 56: ...ent INPUT IMPEDANCE Measured at freg 1MHz R parallel value 1 MΩ tolerance 1 C parallel value 25 pF tolerance 5 pF DYNAMIC RANGE Up to 10 MHz 2 5V Symmetrical MAX INPUT VOLTAGE See note 1 2 Max input voltage 150 V rms According to EN61010 1 Cat II Pol 2 Note 1 Apparaturs should be properly grounded through the protective ground conductor of the power cord Note 2 Up to 20 kHz 20 kHz see figure 1 1 S...

Страница 57: ...488 2 SCPI see SCPI INTERFACE programming manual See Note 1 INTERFACE REPERTORY Source handshake SH1 Complete capability Acceptor handshake AH1 Complete capability Talker T5 Basic talker yes Serial poll yes Talk only yes Unaddress if MLA yes Listener L3 Basic listerner yes Listener only yes Unaddress if MTA yes Service request SR1 Complete capability Remote local RL1 Complete capability Parallel p...

Страница 58: ... type 57FE 20240 20SD35 Pin 1 4 DIO1 DIO4 Pin 13 16 DIO5 DIO8 Pin 18 23 GND Pin 24 Logic GND Pin 5 EOI Pin 6 DAV Pin 7 NRFD Pin 8 NDAC Pin 9 IFC Pin 10 SRQ Pin 11 ATN Pin 12 Shield Pin 17 REN FUNCTION SELECTION Via UTILITY MENU Busaddress Default 8 See Note 2 INTERFACE STATUS INDICATOR On screen Note 1 Talker listener Note 2 When battery installed same as last power off value ...

Страница 59: ...2 4 PRINCIPLE OF OPERATION Figure 2 1 Blockdiagram ...

Страница 60: ...ends control signals to the oscilloscope circuits to put them in the desired mode Control of the oscilloscope functions can also be done by an external computer connected to the RS 232 CONNECTOR 2 3 VERTICAL DEFLECTION This section consists of the blocks VERTICAL CHANNELS and FINAL VERTICAL AMPLIFIER There are four vertical channels In PM3370B 80B 90B there are two vertical channels CH1 and CH2 an...

Страница 61: ...T TRIG or a signal derived from the line voltage The following controls adjust the triggering COUPLING permits selection between ac dc lf reject hf reject and noise suppression SLOPE permits triggering on positive or negative going signal edges LEVEL adjusts the signal level where the timebase is started The output of the TRIGGERING generates a pulse that starts the TIMEBASE The TIMEBASE generates...

Страница 62: ...r source Memories in the oscilloscope are supplied by a MEMORY BACKUP battery if line voltage is switched off 2 7 DIGITIZER SECTION In DIGITAL MODE the CH1 CH4 PM3370B 80B 90B CH1 CH2 and TRIG VIEW input signals are applied to the DIGITIZER AND TEXT GENERATOR where they are digitized and stored in a memory The signal storage is initiated by pulses from the TRIGGERING Also the generation of text cu...

Страница 63: ...edure All checks are made from the outside of the instrument If this test is started a few minutes after turning on the instrument test steps may be out of specification due to insufficient warm up time Be sure to allow the full warm up time of 30 minutes under average conditions The check is set up in a logical sequence For a complete check of every facet of the instrument s calibration refer to ...

Страница 64: ...llumination of the measuring graticule is obtained Verify that the trace on the CRT is exactly parallel to the horizontal lines of the measuring raster if not correct this with a small screwdriver on the TRACE ROTATION control Instrument calibration Press the CAL key for two seconds this starts the AUTOCALibration procedure Wait until the normal display appears again The oscilloscope calibration i...

Страница 65: ...stment during this procedure to align the waveform with the measuring raster Small readjustments of the TRACE INTENSITY TEXT INTENSITY and FOCUS controls may also be necessary Information about active instrument settings is indicated on the viewing area as shown in Fig 3 2 ST6024 9303 Figure 3 1 Probe adjustment ...

Страница 66: ... 90A this section includes a separate check of the EXT TRIG input and TRIG VIEW function Differences in the keys for AC DC input coupling grounded trace GND and 50Ω input impedance may exist This is indicated in the text These test steps may be skipped Proceed as follows Preparation Connect a probe to the CH1 CH2 CH3 CH4 input Connect the probe tip to the Probe Adjust output socket Press the AUTOS...

Страница 67: ... is obtained Verify that this results in an upward signal shift Fig 3 4 shows this for channels with 100mV input sensitivity the shift is 3 divisions Fig 3 6 shows this for channels with 1 00 V input sensitivity the shift is 0 3 divisions Turn the POS control CCW until the display of Fig 3 3 is obtained again Press the AC DC GND key so that GND input coupling is obtained Verify that this results i...

Страница 68: ...indicated in Fig 3 5 INV function The following check is only required for CH2 and CH4 Press the INV key and check for a display as shown in Fig 3 6 AUTO RANGE function The AUTO RANGE function automatically selects the input sensitivity to the best possible amplitude of an input signal Press the AUTOSET key Verify that a stable signal is displayed Press the upper AMPL key and select 20 0 mV div Th...

Страница 69: ...k for a display as shown in fig 3 7 Press the EXT TRIG key and check that the displayed square wave starts with a negative going slope Press the EXT TRIG key and check that the display as shown in fig 3 7 is obtained again Press the AC DC key in the EXT TRIG section so that dc input coupling is obtained Check for a display as shown in fig 3 8 Press the ANALOG key to switch the instrument back to a...

Страница 70: ...s the right of the MAIN TB TIME DIV keys until 250 µs is displayed Verify that one signal period occupies 2 divisions Press the left of the MAIN TB TIME DIV keys until 500 µs is displayed Verify that one signal period occupies 1 divison Press both MAIN TB TIME DIV keys the VAR mode is switched off The message 1 2 5 STEPS is displayed briefly Press the right of the MAIN TB TIME DIV keys and verify ...

Страница 71: ...N TB trigger slope and time coeficients in digital mode Press the ANALOG key DIGITAL MODE is displayed briefly The oscilloscope is now in digital mode Press the AUTOSET key Adjust the AMPL keys to an input sensitivity of 100 mV division Adjust the MAIN TB TIME DIV keys to 100 µs DIV Press the TRIG1 key and verify that the displayed square wave starts with a negative going signal Press the TRIG1 ke...

Страница 72: ...the CRT softkeys Select DEL D TB on and MAIN TB on front from the DELAYED TIMEBASE menu Use the DEL D TB TIME DIV to select 20 0 µs division Adjust the DELAY control in the DELAYED TIME BASE section so that the display of Fig 3 9 is obtained To do this the TRACK control must be adjusted such that MAIN TB is above the DEL D TB display Press the left side of the DELAYED TIME BASE TIME DIV keys and v...

Страница 73: ...tion Connect a probe to the CH1 input Connect the probe tip to the Probe Adjust output socket Press the AUTOSET key Adjust the CH1 AMPL key pair to obtain an input sensitivity of 100mV div Adjust the MAIN TB TIME DIV keys to100 µs div Verify that a square wave with an amplitude of 6 divisions is displayed VOLT cursors check Press the CURSORS menu key the CURSORS menu appears at the CRT softkeys Us...

Страница 74: ...tom of the waveform If necessary readjust them using the TRACK and controls Check for a volt cursor readout of approximately 600 mV in the top of the display area Figure 3 10 CURSORS ch1 ch2 ch4 ST6656 9303 ch1 V 600mV CH1 100mV MTB 0 1ms 100µs TRACK on off READOUT V Figure 3 11 CURSORS ch1 ch2 ch4 ST6657 9303 ch1 T 500µs TRACK CH1 100mV MTB 0 1ms 100µs on off READOUT T ...

Страница 75: ...k for a time cursor readout of approximately 500 µs in the top of the display area Press the ANALOG key ANALOG MODE is displayed briefly The oscilloscope is now in analog mode Verify that the cursors are on the first and second negative slope of the waveform If necessary readjust them using the TRACK and controls Check for a time cursor readout of approximately 500 µs in the top of the display are...

Страница 76: ... the outside of the instrument If the test is started shortly after turning on the instrument steps may be out of specification due to insufficient warm up time Be sure to allow the full warm up time of 35 minutes under average conditions The tests are made with a stable well focused low intensity display Unless otherwise noted adjust the intensity position and trigger level controls as needed IMP...

Страница 77: ... the oscilloscope The test set up figures in this section are universal they indicate the most extensive 4 channel instrument For PM3370B 80B 90B the CH3 input is not present and the CH4 input socket is an EXTernal TRIGger input 4 2 RECOMMENDED TEST EQUIPMENT Note The FLUKE 5500A has to be equipped with the SCOPE option and is always used in SCOPE mode SCOPE button active Note The digital multimet...

Страница 78: ...RIAC voltage 90 264V TV pattern generator with video output Fluke PM5418 Oscilloscope The bandwidth must PM3394B be the same or higher than the bandwidth of the instrument under test 50Ω cables Tektronix and Fluke BNC PM9074 75Ω cables types for fast rise time PM9075 50Ω termination square wave high PM9585 1W PM9581 3W 75Ω termination frequency sine wave and TEK 011 0055 01 10 1 attenuator other a...

Страница 79: ...e is in analog mode by pressing the RUN STOP key If you are in analog mode the message PLEASE FIRST SWITCH TO DSO is displayed The now following steps are applicable for PM3390B and PM3394B 4 Press the UTILITY menu key to display the UTILITY menu 5 Press softkey AUTOSET to display the UTILITY AUTOSET menu 6 Press the relevant softkey to put the oscilloscope in the userprog mode the text userprog m...

Страница 80: ...t the oscilloscope starts at any input voltage between 100 and 240V in particular the line voltages 100 120 220 and 240V must be checked 2 Verify that the instrument s performance does not change over the indicated voltage range and that the displayed Probe Adjust signal is distortion free and has equal intensity 3 Press the ANALOG key DIGITAL MODE is displayed briefly and verify that the instrume...

Страница 81: ... use the internal termination when active the text LZ appears in the lower part of the viewing area For instruments without internal termination an external termination should be used Requirements 1 Verify that the displayed waveform is stable and properly triggered Amplitude should be within the screen area Horizontally some signal periods should be displayed 2 Repeat the same settings and proced...

Страница 82: ...s fine tuned to optimal accuracy 2 Apply a 50 Hz sine wave signal of 8V pp to input CH1 3 Press the AUTOSET key and adjust the input signal to a trace height of 8 div CH1 in 1V div 4 Activate the GND function and verify that the straight line is exactly parallel to the horizontal graticule lines If not readjust the TRACE ROTATION 5 Switch the GND function off and verify that a signal of 8 division...

Страница 83: ...l 6 x 8 divisions of the screen Test equipment None Settings procedure 1 Press the AUTOSET key with no input signal applied to the scope 2 Use the CH1 POS control to shift the timebase line vertically across the center 6 divisions of the screen Requirements Verify that the deviation from the ideal straight line does not exceed 0 03 divisions in the center of screen and 0 1 divisions elsewhere Test...

Страница 84: ... Use the X POS control to shift the vertical line across the middle eight divisions of the screen Requirements Verify that the deviation from the ideal straight line does not exceed 0 03 divisions in the center of screen and 0 1 divisions elsewhere 4 3 6 Vertical deflection deflection coefficients The vertical deflection coefficients of channels CH1 CH2 CH3 and CH4 are checked by means of a calibr...

Страница 85: ...T MENU key 6 Press the TRIGGER menu key 7 Select noise on and hf rej from the TRIGGER MAIN TB menu 8 Change the input voltage and the setting of CH1 according to table I and verify that the amplitude of the signal agrees with this table The signal should remain positioned in the vertical center of the screen Note Only the input sensitivities essential for input accuracy are checked Requirements ta...

Страница 86: ...continuation of 4 3 6 This test checks the vertical VARiable gain control Settings procedure 1 Apply a square wave signal of 0 2V to input CH1 and press AUTOSET 2 Set CH1 to 50 mV div and input coupling to DC Using the CH1 POS control center the waveform in the screen 3 Select the VARiable mode by simultaneously pressing both AMPL keys The readout changes into 50 0 mV div 4 Press the mV key to adj...

Страница 87: ...RIG input for AC and DC coupling 4 3 9 Vertical cursor accuracy continuation of 4 3 8 This test verifies the accuracy of the voltage cursors Settings procedure 1 Change the generator output voltage to 0 1V 2 Apply this voltage to CH1 3 Switch CH1 to ON and switch the other channels off 4 Select DC coupled input and 20 mV division for CH1 5 Select CH1 as trigger source TRIG 1 6 Use the POS control ...

Страница 88: ...LZ is visible in the lower part of the viewing area Internal 50Ω termination is attainable via the VERT MENU key PM3390B 94B 3 Set CH1 to 0 1V div 4 Adjust the input signal to an amplitude of exactly 6 divisions 5 Slowly increase the frequency to 200 MHz PM3390B PM3394B 100 MHz PM3384B PM3380B or 60 MHz PM3370B and verify that the displayed amplitude does not drop below 4 2 divisions 6 Switch the ...

Страница 89: ...t generator output Use a BNC probe tip adapter between termination and 10 1 probe Adjust the amplitude at 50 kHz to 5 divisions Check that the amplitude at higher frequencies does not drop below 3 5 div Press the ANALOG key DIGITAL MODE is displayed briefly and repeat the tests in this section for the digital mode Adjust the MAIN TB TIME DIV if required 4 3 11 Vertical deflection low frequency res...

Страница 90: ... or more Repeat the above settings and procedure for CH2 CH3 and CH4 PM3370B 80B 90B check CH2 and TRIG VIEW via EXT TRIG input Press the ANALOG key ANALOG MODE is displayed briefly to return to analog mode 4 3 12 Vertical deflection dynamic range at 15 25 50 MHz The oscilloscope must be capable of displaying signal amplitudes that are larger than the screen In practice a low frequency signal with...

Страница 91: ...200 MHz continuation of 4 3 12 In this test the dynamic range of the amplifier is checked at a high frequency Settings procedure 1 Apply a 200 MHz PM3390B 94B 100 MHz PM3380B 84B or 60 MHz PM3370B sine wave signal of 0 8 V pp into 50Ω to input CH1 2 Press the AUTOSET key and set CH1 to 0 1V div 3 Use a 50Ω termination Use the internal termination when available 4 Set the amplitude to exactly 8 div...

Страница 92: ...nd counterclockwise and verify that top and bottom of the 8 divisions signal can be positioned outside the graticule Repeat the above settings and procedure for CH2 CH3 and CH4 PM3370B 80B 90B check CH2 4 3 15 Vertical deflection crosstalk between channels at 60 100 200 MHz At higher frequencies there exists some crosstalk between any two channels In the following test crosstalk is verified at a h...

Страница 93: ...e GND of CH2 Requirements Verify that the displayed amplitude the channels with no input signal applied is less than 0 16 divisions better than 50 1 Repeat the above settings and procedure for PM3384B 94B Input signal applied to CH2 CH1 CH3 and CH4 input GND Input signal applied to CH3 CH1 CH2 and CH4 input GND Input signal applied to CH4 CH1 CH2 and CH3 input GND Repeat the above settings and pro...

Страница 94: ...e AUTOSET key 3 Use 50Ω terminations Use the internal terminations when available via VERT MENU key 4 Set CH1 and CH2 to 0 1V div and adjust the generator voltage for a deflection of 8 divisions 5 Set CH1 and CH2 to DC input coupling 6 Press the CH1 CH2 key to activate the added mode 7 Press the INV key of CH2 the result is the display of CH1 CH2 8 Press the ON keys of CH1 and CH2 this switches CH...

Страница 95: ...sions 5 Set CH1 and CH2 to DC input coupling 6 Press the CH1 CH2 key to activate the added mode 7 Press the INV key of CH2 the result is the display of the differential signal of CH1 CH2 8 Press the ON keys of CH1 and CH2 this switches CH1 and CH2 off and only the differential signal of CH1 CH2 display is now visible 9 Readjust the VAR function of CH1 or CH2 for minimum amplitude Requirements Veri...

Страница 96: ... within the central 6 divisions of the screen Requirements Verify that the amplitude of the sq wave in the central 6 div screen area is between 1 96 2 04 divisions or 2 Repeat the above settings and procedure for CH2 CH3 and CH4 PM3370B 80B 90B repeat this for CH2 Press the ANALOG key DIGITAL MODE is displayed briefly and repeat the check in this chapter for the digital mode The requirement for th...

Страница 97: ... generator PG 506 Test set up Settings procedure 1 Apply a signal with a fast rise time of less than 1 ns and an amplitude of 0 5V into 50Ω and a frequency of 1 MHz to input CH1 2 Press the AUTOSET button and set CH1 to 0 1V div 3 Use a 50Ω termination Use the internal termination when provided via VERT MENU key 4 Set the MAIN TB TIME DIV to 50 0 ns div 5 Press the MAGNIFY key and turn the X POS c...

Страница 98: ...5 00V The input sensitivity can be adjusted now in very fine steps between 2 mV and 12 5V div 4 Press the V key and verify that the base line jump is not more than 0 2 divisions between 5 00V to 12 5V div 5 Press the mV key and verify that the base line jump is not more than 0 2 divisions between 12 5V div to 5 mV div 6 Press the ON keys of CH2 and CH1 CH2 is now on and CH1 is off 7 Using the CH2 ...

Страница 99: ...0B PM3380B and PM3370B no further steps required 4 3 21 Delay difference between vertical channels The delay difference between CH1 CH2 CH3 and CH4 is checked here Test equipment Fluke 5500A mode edge Alternative Square wave calibration generator PG 506 Power splitter Test set up Settings procedure 1 Apply a square wave signal with a fast rise time of less than 1 ns and an amplitude of 1V into 50Ω...

Страница 100: ... lines The signals appear to be superimposed Requirements Verify that the delay difference between the two displayed signals is less than 0 25 ns This equals 0 13 divisions in PM3390B 94B or 0 05 divisions in PM3370B 80B 84B Repeat the above settings and procedure for CH3 and CH4 not necessary for PM3370B 80B 90B Press the ANALOG key DIGITAL MODE is displayed briefly and repeat the tests in this c...

Страница 101: ...l to a trace height of 4 divisions 4 Set MAIN TB to 500 µs 5 Press the DTB menu key 6 Set DEL D TB to on in the DELAYED TIMEBASE menu 7 Set MAIN TB to on in the DELAYED TIMEBASE menu 8 Set the DELAYED TIMEBASE to 50 0 µs 9 Turn the DELAY control in the DELAYED TIMEBASE section and verify that the intensified part can be shifted horizontally along the MAIN TB display 10 Operate the TRACK control an...

Страница 102: ...ust the generator signal to a trace height of 8 divisions 4 Press the DISPLAY menu key 5 Press the X DEFL softkey in the DISPLAY menu 6 Select on and ch1 as X SOURCE in the X DEFL menu 7 Use the CH1 POS and X POS controls to obtain the display shown in the figure below Requirements Verify that a line with an angle of 45 is displayed MAT3837 Figure 4 4 X deflection ...

Страница 103: ... of this feature via VERT MENU key 4 Press the TRIGGER menu key 5 Select level pp off and dc from the TRIGGER MAIN TB menu 6 Press the TB MODE menu key 7 Select trig from the TB MODE menu 8 Adjust the TRIGGER LEVEL control for a correctly triggered display 9 Verify the deflection coefficients of MAIN TB with MAGNIFY off 1 and MAGNIFY on 10 according to the requirements in the tables Use the deflec...

Страница 104: ... µs 1 8 500 ns 0 5 µs 1 8 1 00 µs 1 µs 1 8 5 00 µs 5 µs 1 8 20 0 µs 20 µs 1 8 500 µs 0 5 ms 1 8 1 00 ms 1 ms 1 8 10 0 ms 10 ms 1 8 Requirements for analog mode MAGNIFY on 10 MAIN TB setting Marker pulse Max error 2 00 ns PM3390B 94B 2 ns 3 3 5 00 ns 5 ns 3 3 10 0 ns 10 ns 2 3 100 ns 0 1 µs 2 3 Requirements for digital mode MAIN TB settingMarker pulseMax error 2 00 ns PM3390B 94B 2 ns 1 8 5 00 ns 5...

Страница 105: ... to make use of this feature 4 Press the TRIGGER menu key 5 Select level pp off and trigger coupling dc from the TRIGGER MAIN TB menu 6 Adjust the TRIGGER LEVEL control for a correctly triggered display 7 Set the MAIN TB TIME DIV to 5 00 us 8 Select the MTB VARiable mode by pressing both MAIN TB TIME DIV keys at a time the message VARIABLE TIMEBASE is displayed briefly 9 Press the ns key and adjus...

Страница 106: ... time marker on the screen and the other cursor on the 10th time marker The distance between both cursors is now 8 time marker intervals Check for a cursor readout between 39 5 and 40 5 µs Press the ANALOG key DIGITAL MODE is displayed briefly and repeat the check in this section for the digital mode Press the TEXT OFF key to have the full screen width available to display the time markers Press t...

Страница 107: ...related menu 10 Set MAIN TB to 1 00 ms and DELAYED TIME BASE to 5 00 µs 11 Use the DELAY control in the DELAYED TIMEBASE SECTION to set the time delay to about 0 seconds 12 Adjust the vertical position of the MAIN TB display with the CH1 POS control in the top half of the viewing area 13 Adjust the vertical position of the DELAYED TIMEBASE display with the TRACK control 14 Verify the DELAYED TIMEB...

Страница 108: ... on 10 DEL D TB setting MAIN TB setting Marker pulse Max error 100 ns 100 ns 0 1 µs 2 3 10 0 ns 10 0 ns 10 ns 2 3 5 00 ns 5 00 ns 5 ns 3 3 2 00 ns PM3390B 94B 2 00 ns 2 ns 3 3 4 3 28 Horizontal deflection delay time multiplier In this test the minimum and maximum delay time is checked Test equipment None Settings procedure and requirements 1 Press the AUTOSET key 2 Press the DTB menu key and selec...

Страница 109: ...itter is checked in this test Test equipment Fluke 5500A mode levsine Alternative function generator PM5136 Test set up Settings procedure 1 Apply a 1 MHz sine wave signal of 120 mV pp into 50Ω to input CH1 2 Press the AUTOSET key and set for a trace height of 6 divisions 3 Use a 50Ω termination For instruments with switchable 50Ω input impedance it is recommended to make use of this feature via V...

Страница 110: ...alibration generator PG 506 Test set up Settings procedure 1 Apply a 1 kHz square wave signal of 0 1V to input CH1 Output not terminated into 50Ω LZ must not appear in lower part of viewing area 2 Press the AUTOSET key 3 Set CH1 to 20 mV and DC coupled input 4 Press the DISPLAY menu key 5 Press X DEFL softkey 6 Select on and ch1 from the X DEFL menu 7 Press the CH2 ON key and then the CH1 ON key t...

Страница 111: ...e 1 Press the AUTOSET key 2 Press the DISPLAY menu key 3 Press X DEFL softkey 4 Select on and line from the X DEFL menu Requirements Verify that a horizontal line of 4 3 to 7 7 divisions is displayed when the line voltage is 220V rms 4 3 32 Horizontal deflection high frequency response In this test the bandwidth of the horizontal amplifier is checked Test equipment Fluke 5500A mode levsine Alterna...

Страница 112: ...the X DEFL menu 6 Press the CH2 ON key and then the CH1 ON key the result is that CH2 is on and CH1 off 7 Adjust the input voltage for exactly 6 divisions horizontal deflection 8 Increase the input frequency up to 2 MHz Requirements Verify that the trace width is at least 4 2 divisions over the complete bandwidth range 4 3 33 Maximum phase shift between horizontal and vertical deflection There wil...

Страница 113: ...at the phase shift is less than 3 0 32 div see figure 4 3 34 MAIN TB triggering PM3390B 3394B trigger sensitivity via CH1 CH2 CH3 and CH4 EXT The trigger sensitivity depends on the amplitude and frequency of the trigger signal In this test the main timebase trigger sensitivity via the CH1 CH2 CH3 and CH4 inputs is checked For the PM3390B this is checked for CH1 CH2 and EXTernal TRIGger input Test ...

Страница 114: ...menu 7 Adjust TRIGGER LEVEL for a correctly triggered display 8 Decrease the amplitude of the input signal 9 Verify that the signal is well triggered at amplitudes of 0 6 divisions and more 10 Decrease the input frequency to 50 kHz 11 Verify that the signal stays well triggered at amplitudes of 0 6 divisions and more 12 Increase the input frequency to 200 MHz 13 Increase the input voltage to 1 2 d...

Страница 115: ...ia CH1 CH2 CH3 and CH4 EXT The trigger sensitivity depends on the amplitude and frequency of the trigger signal In this test the main timebase trigger sensitivity via the CH1 CH2 CH3 and CH4 inputs is checked For PM3370B and PM3380B this is checked for CH1 CH2 and the EXTernal TRIGger input For PM3370B frequency setting between Test equipment Fluke 5500A mode levsine Alternative constant amplitude...

Страница 116: ... the input voltage to 2 divisions Signal must be in vertical center of screen 18 Verify that the signal is well triggered at amplitudes of 2 divisions and more adjust TRIGGER LEVEL when necessary PM3384B repeat the procedure for CH2 CH3 and CH4 for the frequencies 50 kHz 0 6 division input signal and 200 MHz 2 division input signal PM3370B 80B repeat the procedure for CH2 and the EXT TRIG input fo...

Страница 117: ...e TRACK control 6 Select pos or neg depending on the available TV pattern generator 7 Select in the VIDEO SYSTEM submenu hdtv ntsc pal or secam depending on the available TV pattern generator The maximum number of lines for hdtv can be selected if hdtv is active Requirements Decrease the amplitude of the input signal and verify that the signal is well triggered on the tv pulses at sync pulse ampli...

Страница 118: ...TB MODE menu key 6 Press the TRIGGER menu key and select level pp off and dc trigger coupling from the TRIGGER MAIN TB menu 7 Adjust TRIGGER LEVEL for a correctly triggered display 8 Press the DTB menu key and select DEL D TB on and MAIN TB on in the related menu 9 Set MAIN TB to 200 ns division and DELAYED TIMEBASE to 20 0 ns division 10 Adjust the DELAY control in the DELAYED TIMEBASE section to...

Страница 119: ...es of 2 divisions and more adjust the control DEL D TB trigger level if necessary PM3394B repeat the procedure for CH2 CH3 and CH4 for the frequencies 50 kHz 0 6 division input signal and 300 MHz 2 division input signal PM3390B repeat the procedure for CH2 and the EXTTRIG input for the frequencies 50 kHz 0 6 division input signal and 300 MHz 2 division input signal Press the ANALOG key DIGITAL MOD...

Страница 120: ...TB on from the related menu 9 Set the MAIN TB to 200 ns division and DELAYED TIMEBASE to 50 0 ns division 10 Adjust the DELAY control in the DELAYED TIMEBASE section to a delay time of 1 000 µs 11 Select trig d and dc coupling from the DELAYED TIMEBASE menu and press the front panel key TRIG1 Or TRIG2 if CH2 on TRIG3 if CH3 on TRIG4 if CH4 on 12 Adjust the DEL D TB trigger level via the control fo...

Страница 121: ...384B repeat the procedure for CH2 CH3 and CH4 for the frequencies 50 kHz 0 6 division input signal and 200 MHz 2 division input signal PM3370B 80B repeat the procedure for CH2 and the EXT TRIG input for the frequencies 50 kHz 0 6 division input signal and 200 MHz 150 MHz 2 division input signal Press the ANALOG key DIGITAL MODE is displayed briefly and repeat the tests in this chapter for the digi...

Страница 122: ...related menu 8 Operate the front panel keys TRIG1 TRIG2 TRIG3 and TRIG4 to obtain the trigger pattern Hxxx x don t care in the menu 9 Press the TB MODE menu key and select trig from the related menu 10 Decrease the amplitude of the generator voltage to 1 division 11 Turn the TRIGGER LEVEL control and check that a well triggered signal is obtained 12 Apply a 300 MHz sine wave signal of 2 V pp into ...

Страница 123: ...tude sine wave generator to input CH1 3 Press the AUTOSET key and set CH1 to 0 5V division 4 Use a 50 ohm termination 5 Set the input coupling to DC and POSition the signal in the vertical center of the screen 6 Select 5 00 ns division for MAIN TB 7 Press the TRIGGER menu key and select logic pattern and enter from the related menu 8 Operate the front panel keys TRIG1 TRIG2 TRIG3 and TRIG4 to obta...

Страница 124: ...y Test equipment Fluke 5500A mode wavegen wave square Alternative function generator PM 5136 T piece Test set up Settings procedure and requirements 1 Apply a 1 kHz square wave signal duty cycle 50 amplitude between 0 to 2 5V to input CH1 Adjust the generator to a signal of 2 5 Vpp with an offset of 1 25V 2 Press the AUTOSET key 3 Set MTB to 0 5 ms div 4 Set the trace of CH1 in mid position with t...

Страница 125: ... are checked Test equipment None Test set up Settings procedure 1 Connect the Probe Adjust signal to input CH1 and press the AUTOSET key 2 Select GND of CH1 3 Set the trace in the center of the screen 4 Select DC input coupling for CH1 Requirements 1 Verify that a positive going square wave signal of 0 6 V pp is displayed i e 3 divisions vertical at 0 2V 2 Verify that the frequency of the displaye...

Страница 126: ...M 5136 Settings procedure 1 Apply a 50kHz sine wave signal of 2 V pp to CH1 2 Press the AUTOSET key 3 Adjust the generator output voltage to maximum 20 30 V approximately The signal amplitude now exceeds the 8 div screen height 4 Press the ANALOG key DIGITAL MODE is displayed briefly to switch the digital mode to on 5 Press the CH1 AUTO RANGE key Check that the vertical amplitude is automatically ...

Страница 127: ... outputs Test equipment measuring oscilloscope Test set up Settings procedure Oscilloscope under test Take care that no input signal is applied to the oscilloscope inputs Press the STATUS and TEXT OFF keys simultaneously This assures that the oscilloscope occupies its default position Press the DTB menu key to display the DELAYED TIME BASE menu Select the on position of the DEL D TB softkey The re...

Страница 128: ...e measuring oscilloscope Verify that the low level of both square waves is between 0 0 4 V Verify that the high level of both square waves is between 2 4 5 V Verify that the MTB GATE signal is displayed via CH1 is high during 10 ms or more Verify that the DTB GATE signal is displayed via CH2 is high during 1 ms or more Y OUTput signal Test equipment Fluke 5500A mode levsine Alternative constant am...

Страница 129: ...tical amplitude of the 50 kHz sine wave signal between 5 3 6 7 divisions Settings procedure Adjust the 50 kHz sine wave signal to an amplitude of exactly 6 divisions Slowly increase the frequency of the generator to 60 MHz PM3370B or 100 MHz PM3380B 84B or 200 MHz PM3390B 94B Requirement Verify that the displayed sine wave does not drop below an amplitude of 3 divisions across the frequency range ...

Страница 130: ...display the TRIGGER MAIN TB menu Select with softkey ch1 extern line the extern trigger source Put CH1 in 50 mV div and adjust the generator output voltage to a vertical display of 2 divisions Slowly increase the frequency of the generator signal from 50 kHz to 5 MHz Requirement Check that the signal diplayed via CH1 stays well triggered across the indicated frequency range the ARM D LED must stay...

Страница 131: ...the filter ensure that a soft cloth is used The cloth must be free from dust and abrasive particles in order to prevent scratches When installing the filter take care that the side facing the screen is the one that has a small distance from the screen When installing the bezel take care that the grooves for text softkey alignment are on the right hand side 5 3 CLEANING Clean the oscilloscope with ...

Страница 132: ...e oscilloscope it contains no user replaceable parts with the exception of the two memory back up batteries Maintenance should only be performed by authorized personnel e g by an authorized Fluke Service Center for addresses refer to last page of this manual ...

Страница 133: ...erten Fluke Servicezentrums brauchen besuchen Sie uns bitte auf dem World Wide Web http www fluke com oder rufen Sie uns unter einer der nachstehenden Telefonnummern an 1 888 993 5853 in den U S A und Canada 31 402 678 200 in Europe 1 425 356 5500 von anderen Ländern aus CENTRES DE SERVICE APRES VENTE Pour localiser un centre de service visitez nous sur le World Wide Web http www fluke com ou télé...

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