Fluke CombiScope PM3370B User manual

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Users Manual
2/1- Nov-1998
®

II
IMPORTANT
In correspondence concerning this instrument please give the model number and
serial number as located on the type plate on the rear of the instrument.
NOTE: The design of this instrument is subject to continuous development and
improvement. Consequently, this instrument may incorporate minor
changes in detail from the information provided in this manual.
Copyright  1997, 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 7600 AR Almelo
98206-9090, USA The Netherlands

III
Thank you for purchasing this FLUKE oscilloscope. It has been designed and
manufactured to the highest quality standards to give you many years of trouble
free and accurate measurements.
The powerful measuring functions listed below have been 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 onhow this product could be improved, please contact
your local FLUKE organization. FLUKE addresses are listed in the back of the
REFERENCE MANUAL.
The REFERENCE MANUAL also contains:
- CHARACTERISTICS AND SPECIFICATIONS
- PRINCIPLES OF OPERATION
- BRIEF CHECKING PROCEDURE
- PERFORMANCE TEST PROCEDURES
- PREVENTIVE MAINTENANCE PROCEDURES

IV
MAIN FEATURES
There are five models in this family of FLUKE oscilloscopes. Each of these
models is a combination of an analog real-time oscilloscope and a fully featured
digital storage oscilloscope. By pressing a single key, you can switch the
instrument from the analog mode to the digital mode and back. This allows each
of the units to be used in an optimum operating mode for all kinds of signal
conditions. Complex data streams, modulated waveforms, and video signals can
often best be seen in the analogmode of operation. The digital mode of operation
is more suited forsingle events, signals withlow repetition frequencies, and when
automatic measurements need to be performed.
In this family there is a choice of five models. Two models have a bandwidth of
200 MHz, two have a bandwidth of 100 MHz and one has a bandwidth of 60 MHz.
Besidethe2channelmodelswithEXTTRIGinput,thereisachoiceoftwomodels
with four fully featured channels, 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 combination oscilloscopes listed above have the following features:
- Autoranging attenuators.
- Realtime clock.
- 32K sample acquisition memory in 4 channel versions.
- 8K sample acquisition memory, expandable to 32K in 2 channel versions.
- Up to 40 waveforms stored in memory or 204 waveforms with optional
memory extension.
- Autoset function for an instant optimized signal display at the touch of a button.
- Autoranging timebase.
- Cursor measurements with 1% accuracies.
- Extensive set of fully automated voltmeter and time measurement functions.
- Probe operated ’Touch Hold and Measure’ function freezes the display and
instantly displays the signal frequency, amplitude and dc voltage level.
Type Number Bandwidth Sample rate Number of
Channels Input Impedance
PM3370B
PM3380B
PM3384B
PM3390B
PM3394B
60 MHz
100 MHz
100 MHz
200 MHz
200 MHz
200 MS/s
200 MS/s
200 MS/s
200 MS/s
200 MS/s
2
2
4
2
4
1 MΩ
1 MΩ
1 MΩ
1 MΩ/50Ω
1 MΩ/50Ω

V
- Peak detection for the capture of glitches as narrow as 5 ns.
- Pattern, State and Glitch triggering (2 ns) (2 channel models; 4ns Glitch
triggering only)
- Event delay and pretriggering and posttriggering.
- TV triggering including HDTV and TV line selection.
- Serial interface for printing and plotting.
- Averaging to reduce signal noise and to increase the vertical resolution from
8 to 16 bits.
- Advanced mathematics, including digital low-pass filtering. A Math+ option
adds integration, differentiation, histogramming, and FFT.
- 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 RS-232 (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 for efficient maintenance of traceable calibration at
minimum cost.
The following options are available:
- A MATH+ option with more automated measurement functions including
envelope and measurement pass/fail testing. Also included in this option are
Integration, Differentiation, Histogramming, and FFT.
- Memory extension offering 32K acquisition length and the ability to store 156
traces (of 512 samples each) in memory for 2 channel versions.
- IEEE-488.2 interface using the new SCPI (Standard Commands for
Programmable Instruments) industry standard for remote control of test and
measurement equipment.

VI
INITIAL INSPECTION
Check the contents of the shipment for completeness and note whether any
damage has occurred during transport. When the contents are incomplete or
there is damage, file a claim with the carrier immediately. Then notify the FLUKE
Sales or Service organization to arrange for the repair or replacement of the
instrument or other parts. FLUKE addresses are listed in the back of the
REFERENCE MANUAL.
The following parts should be included in the shipment:
Service ordering number
or model number
1 Oscilloscope PM3370B, PM3380B or
PM3390B, PM3384B or
PM3394B
1 Front cover 5322 447 70121
1 Users Manual
1 Reference Manual
1 Line cord (European type) or 5322 321 21616
1 Line cord (North American type) or 5322 321 10446
1 Line cord (British type) or 5322 321 21617
1 Line cord (Swiss type) or 5322 321 21618
1 Line cord (Australian type) 5322 321 21781
2 Probes 10:1
2 Batteries AA (LR6)
1 Spare fuse 3.15 AT 4822 070 33152
(located inside fuse holder)
The performance of the instrument can be tested by using the PERFORMANCE
TESTS in the REFERENCE MANUAL.

VII
INSIDE THIS MANUAL
This operating guide contains information on all of the oscilloscope’s features. It
starts with a general introduction, a summary of main capabilities, initial
inspection note and a front and rear view.
Operators safety Chapter 1 should be read before unpacking,
installing, and operating the instrument.
Installation instructions Chapter 2 describes grounding, line cord, fuses,
and backup batteries.
Getting started Chapter 3 provides a 10-minute tutorialintended
for those who are not familiar with Fluke
oscilloscopes.
How to use more advanced Chapter 4 provides the more experienced user
functions of the instrument withadetailedexplanationofthemajorfunctions
of the oscilloscope.
Function reference Chapter 5containsan alphabetizeddescription of
each function. Each description includes an
explanation of local and remote control functions.
CPL protocol Chapter 6 provides the CPL commands with an
example of each.
Function index The Function Index lists all implemented
functions in alphabetical order.
Index The overall index contains all function names
and reference words in alphabetical order. It
includes the relevant chapter and page number
where more detailed information can be found.
IN THE APPENDICES
Menu structures
RS-232 Cable configurations

VIII CONTENTS
CONTENTS Page
1 OPERATORS SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.3 CAUTION AND WARNING STATEMENTS . . . . . . . . . . . . . . . . . . 1-1
1.4 SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.5 IMPAIRED SAFETY PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.6 MEASURING EARTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2 INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1 Protective earthing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.2 Mains voltage cord, mains voltage range and fuses . . . . . 2-1
2.2 MEMORY BACK-UP BATTERIES . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.2 Installation of batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.3 THE FRONT COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.4 HANDLE ADJUSTMENT AND OPERATING
POSITIONS OF THE INSTRUMENT . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.5 IEEE 488.2/IEC 625 BUS INTERFACE OPTION . . . . . . . . . . . . . . 2-4
2.6 RS-232-C SERIAL INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.7 RACK MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.8 VERSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

CONTENTS IX
3 GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 FRONT-PANEL LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 SWITCHING ON THE INSTRUMENT . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3 SCREEN CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.4 AUTO SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.5 MODE SWITCHING BETWEEN ANALOG AND
DIGITAL OPERATING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.6 VERTICAL SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.7 TIMEBASE SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.8 MAGNIFY (EXPAND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.9 DIRECT TRIGGER SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3.10 PRE-TRIGGER VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
3.11 MORE ADVANCED FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
3.12 CURSOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3.13 MORE ADVANCED TRIGGER FUNCTIONS . . . . . . . . . . . . . . . . 3-19
3.14 MORE SIGNAL DETAIL WITH THE DELAYED TIMEBASE . . . . 3-20
3.15 TRACE STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
4 HOW TO USE MORE ADVANCED FUNCTIONS
OF THE INSTRUMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 DISPLAY AND PROBE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . 4-5
4.3 ANALOG AND DIGITAL MODES . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4.4 VERTICAL DEFLECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4.5 HORIZONTAL DEFLECTION AND TRIGGERING . . . . . . . . . . . . 4-22

XCONTENTS
4.6 DIGITAL ACQUISITION AND STORAGE . . . . . . . . . . . . . . . . . . . 4-30
4.7 ADVANCED VERTICAL FUNCTIONS . . . . . . . . . . . . . . . . . . . . . 4-31
4.8 ADVANCED HORIZONTAL AND TRIGGER FUNCTIONS . . . . . 4-34
4.9 MEMORY FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
4.10 CURSORS FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
4.11 MEASUREMENT FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49
4.12 PROCESSING FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54
4.13 DISPLAY FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57
4.14 DELAYED TIMEBASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63
4.15 HARD COPY FACILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68
4.16 AUTOSET AND SETUP UTILITIES . . . . . . . . . . . . . . . . . . . . . . . 4-71
4.17 OTHER FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75
5 FUNCTION REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
6 THE CPL PROTOCOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.2 EXAMPLE PROGRAM FRAME . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.3 COMMANDS IN FUNCTIONAL ORDER . . . . . . . . . . . . . . . . . . . . . 6-4
6.4 COMMANDS IN ALPHABETICAL ORDER . . . . . . . . . . . . . . . . . . 6-5
6.5 COMMAND REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.6 ACKNOWLEDGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47
6.7 STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-48
6.8 SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50