Fluke PM 8914/001 CombiScope Serial Interface Cable Reference Manual

Autoranging
CombiScope
Instrument
I

PM3370B-PM3380B-PM3390B
PM3384B-PM3394B
Reference Manual
4/1-Dec-2000
®
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.
Fluke Corporation
P.O. Box 9090
Everett WA
98206-9090, USA
Fluke Industrial B.V.
P.O. Box 680
7600 AR Almelo
The Netherlands
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
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 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
HOW TO USE THE INSTRUMENT
FUNCTION REFERENCE
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 push button, 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 analog mode of operation. The digital mode of operation
is more suited for single events, signals with low 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.
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:
Type Number
Bandwidth
Sample rate
Number of
Channels
Input
Impedance
PM3370B
60 MHz
200 MS/s
2
1 MΩ
PM3380B
100 MHz
200 MS/s
2
1 MΩ
PM3384B
100 MHz
200 MS/s
4
1 MΩ
PM3390B
200 MHz
200 MS/s
2
1 MΩ/50Ω
PM3394B
200 MHz
200 MS/s
4
1 MΩ/50Ω
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:
-
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.
Auto-ranging attenuators.
Auto-ranging timebase.
Real time clock.
V
-
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.
Peak detection for the capture of glitches as narrow as 5 ns.
Pattern, State and Glitch triggering (2 ns, only in the 4 channel models).
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 (as part of a option) 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 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 memory and the ability to store
204 traces (of 512 samples each) in memory.
IEEE-488.2 interface using the new SCPI (Standard Commands for
Programmable Instruments) industry standard for remote control of test and
measurement equipment.
VI
CONTENTS
CONTENTS
1 CHARACTERISTICS
Page
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 VERTICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1
Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.2
Deflection Modes (Analog Only) . . . . . . . . . . . . . . . . . . . .
1.1.3
Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.4
Attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.5
Input Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.6
Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.7
Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.8
Position Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.9
Trace Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.10 Max. Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.11 Step Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.12 Signal Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.13 Vertical Accuracies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
1-3
1-3
1-4
1-4
1-5
1-5
1-6
1-6
1-6
1-6
1-7
1-7
1-8
1.2 TIMEBASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.2.1
Timebase (modes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.2.2
Timebase Settings (Analog Mode Only) . . . . . . . . . . . . . . 1-9
1.2.3
DTB 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 Horizontal Deflection . . . . . . . . . . . . . . . . . . . . . 1-13
1.2.13 Horizontal Display Accuracy . . . . . . . . . . . . . . . . . . . . . . 1-13
1.3 TRIGGERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.1
Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.2
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.3
TV Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.4
Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.5
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.6
Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.7
Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.8
Logic Triggering Timing (Digital Mode Only) . . . . . . . . . .
1.3.9
Trigger Accuracies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-14
1-14
1-14
1-14
1-15
1-16
1-17
1-17
1-18
1-18
CONTENTS
VII
1.4 EVENT COUNTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
1.5 HOLD-OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
1.6 PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
1.6.1
Preprocessing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
1.6.2
Register Processing (Digital Mode) . . . . . . . . . . . . . . . . . 1-20
1.7 TRACE MEASUREMENTS (DIGITAL MODE) . . . . . . . . . . . . . . . 1-21
1.8 CURSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.8.1
Cursor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
1.8.2
Cursor Readouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
1.8.3
Cursor Accuracies ( Analog Mode) . . . . . . . . . . . . . . . . . 1-23
1.8.4
Cursor Accuracies (Digital Mode) . . . . . . . . . . . . . . . . . . . 1-23
1.9 DIGITAL ACQUISITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
1.9.1
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
1.9.2
Sample Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
1.9.3
Multiplexed Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 Manipulations (Digital Mode) . . . . . . . 1-30
1.13 EXTERNAL INTERFACES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
1.13.1 Calibrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
1.13.2 Standard external interface . . . . . . . . . . . . . . . . . . . . . . . 1-31
1.13.3 Optional external interfaces . . . . . . . . . . . . . . . . . . . . . . . 1-33
1.13.4 Printers and plotters support . . . . . . . . . . . . . . . . . . . . . . 1-33
1.13.5 Real Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
VIII
CONTENTS
1.14 AUTO SET & CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
1.14.1 Auto Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
1.14.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
1.15 POWER SUPPLY AND BATTERY BACKUP . . . . . . . . . . . . . . . . 1-34
1.15.1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
1.15.2 Battery Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35
1.16 MECHANICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . 1-36
1.17 ENVIRONMENTAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . .
1.17.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.17.2 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.17.3 EMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-36
1-36
1-36
1-38
1.18 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41
1.19 ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41
1.20 OPTIONS & OPTIONAL VERSIONS . . . . . . . . . . . . . . . . . . . . . .
1.20.1 Options Line cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.20.2 Options digital versions . . . . . . . . . . . . . . . . . . . . . . . . . .
1.20.3 Options analog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.20.4 Specification optional outputs . . . . . . . . . . . . . . . . . . . . .
1.20.5 Specification External trigger option . . . . . . . . . . . . . . . . .
1.20.6 Specification IEEE-OPTION . . . . . . . . . . . . . . . . . . . . . . .
2 PRINCIPLE OF OPERATION
1-42
1-42
1-42
1-42
1-43
1-44
1-45
. . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 CONTROL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.3 VERTICAL DEFLECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.4 HORIZONTAL DEFLECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.5 CRT DISPLAY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.6 POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.7 DIGITIZER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
CONTENTS
IX
3 BRIEF CHECKING PROCEDURE . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 Preliminary settings of the controls . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.3 Vertical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.4 Horizontal section, MAIN TB and DELAYED TIME BASE. . . . . . 3-8
3.5 Horizontal section, X-deflection. . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.6 Cursors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.7 TEXT OFF key: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
4 PERFORMANCE TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 RECOMMENDED TEST EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . 4-2
4.3 TEST PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.3.1
Preliminary settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.3.2
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4.3.3
Auto set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.3.4
Orthogonality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 15/25/50 MHz . . . . 4-15
4.3.13 Vertical deflection; dynamic range at 60/100/200 MHz . . 4-16
4.3.14 Vertical deflection; position range . . . . . . . . . . . . . . . . . . 4-16
4.3.15 Vertical deflection; crosstalk between channels
at 60/100/200 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
4.3.16 Vertical deflection; common mode rejection ratio
at 1 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
X
CONTENTS
4.3.17
4.3.18
4.3.19
4.3.20
4.3.21
4.3.22
4.3.23
4.3.24
4.3.25
4.3.26
4.3.27
4.3.28
4.3.29
4.3.30
4.3.31
4.3.32
4.3.33
4.3.34
4.3.35
4.3.36
4.3.37
4.3.38
4.3.39
4.3.40
4.3.41
4.3.42
4.3.43
4.3.44
Vertical deflection; common mode rejection ratio
at 50 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vertical deflection; LF linearity . . . . . . . . . . . . . . . . . . . . .
Vertical deflection; visual signal delay . . . . . . . . . . . . . . .
Vertical deflection; base line instability . . . . . . . . . . . . . . .
Delay difference between vertical channels . . . . . . . . . . .
Horizontal deflection; display modes and
trace separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal deflection; X deflection . . . . . . . . . . . . . . . . . .
Horizontal deflection; MAIN TB deflection coefficients . . .
Horizontal deflection; VARiable mode
accuracy MAIN TB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time cursor accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal deflection; DELAYED TIME BASE
deflection coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal deflection; delay time multiplier . . . . . . . . . . . .
Horizontal deflection; delayed timebase jitter . . . . . . . . . .
Horizontal deflection; X deflection coefficient via CH1 . . .
Horizontal deflection; X deflection coefficient via ’line’ . . .
Horizontal deflection; high frequency response . . . . . . . .
Maximum phase shift between horizontal and
vertical deflection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAIN TB triggering PM3390B/3394B;
trigger sensitivity via CH1, CH2, CH3 and CH4 (EXT) . . .
MAIN TB triggering PM3370B/3380B/3384B;
trigger sensitivity via CH1, CH2, CH3 and CH4 (EXT). . .
MAIN TB/DEL’D TB triggering;
trigger sensitivity TVL-TVF . . . . . . . . . . . . . . . . . . . . . . . .
DEL’D TB triggering PM3390B/94B;
trigger sensitivity via CH1, CH2, CH3 and CH4 (EXT) . . .
DEL’D TB triggering PM3370B/80B/84B;
trigger sensitivity via CH1, CH2, CH3 and CH4 (EXT). . .
Trigger sensitivity in logic mode PM3394B . . . . . . . . . . .
Trigger sensitivity in logic mode PM3384B . . . . . . . . . . .
Z-MOD sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Adjust signal; frequency and output voltage . . . . .
Auto range functions . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing the optional auxiliary outputs . . . . . . . . . . . . . . . .
4-20
4-20
4-22
4-23
4-24
4-26
4-26
4-28
4-30
4-31
4-31
4-33
4-34
4-35
4-36
4-36
4-37
4-38
4-40
4-41
4-42
4-44
4-46
4-48
4-49
4-50
4-51
4-52
CONTENTS
5 PREVENTIVE MAINTENANCE
XI
. . . . . . . . . . . . . . . . . . . . . . . . 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
XII
CONTENTS
®
DECLARATION OF CONFORMITY
for
Autoranging CombiScope Instrument
PM3370B, PM3380B, PM3390B
PM3384B, PM3394B
Manufacturer
Fluke Industrial B.V.
Lelyweg 1
7602 EA Almelo
The Netherlands
Statement of Conformity
Based on test results using appropriate standards, the product is in conformity
with
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 performed in a typical configuration.
This Conformity is indicated by the symbol
, i.e. "Conformité européenne".
CHARACTERISTICS
SPECIFICATION
1 CHARACTERISTICS
CHARACTERISTICS
1-1
ADDITIONAL
INFORMATION
A. Performance Characteristics
-
-
Properties expressed in numerical values with tolerances, ranges, or limits
stated, are guaranteed by the manufacturer.
Properties expressed in numerical values without tolerances, ranges, or limits
stated, represent the characteristics of an average instrument.
This specification is valid if the temperature has not changed more than + or 5 °C since the last AUTO CAL, the probe is of the same type as delivered with
the instrument, and if the average factor is 8.
For definitions of terms, reference is made to IEC Publication 351-1, 359.
B. Safety Characteristics
This instrument 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 S82.011994, 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 safe condition. This manual contains
information and warnings which must be followed by the user to ensure safe
operation and to keep the instrument in safe condition. The instrument has been
designed for indoor use. It may occasionally be subjected to temperatures
between +5 °C and 10 °C without degradation of its safety.
C. General Characteristics
-
Overall dimensions:
• Height (without feet)
• Width (without handle)
• Length (without handle and front cover)
: 139 mm ( 5.5 in)
: 341 mm (13.5 in)
: 481 mm (19 in)
1-2
CHARACTERISTICS
CHARACTERISTICS
Figure 1.1
Weight
SPECIFICATION
ADDITIONAL
INFORMATION
Dimensions
9.5 kg
(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’.
CHARACTERISTICS
CHARACTERISTICS
1.1
VERTICAL
1-3
SPECIFICATION
ADDITIONAL
INFORMATION
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
CHANNELS
CH1; CH2;
CH3; CH4
Form a channel set
Form a channel set
See Note 1
1.1.1
Channels
Note 1: CH1 and CH2 for PM3370B, PM3380B and PM3390B.
1.1.2
Deflection Modes (Analog Only)
MODES
CH1, CH2, CH3, CH4
CH1 + CH2
CH3 + CH4
Automode:
Auto attenuator
See Note 1
CH2 and CH4 can be
inverted to allow
-CH2 or -CH4
CH2 can be inverted to
allow CH1 - CH2
CH4 can be inverted to
allow CH3 - CH4
CH1, CH2
CH3, CH4
All models
PM3384B/94B
CH1, CH2
CH3, CH4
See Note 2
All models
PM3384B/94B
Windows ON
Alternate
Chopped
Chopped mode:
Chopped freq.
1 MHz
Note 1: CH1 and CH2 for PM3370B, PM3380B and PM3390B.
Note 2: If more than one channel ON.
1-4
CHARACTERISTICS
CHARACTERISTICS
1.1.3
SPECIFICATION
ADDITIONAL
INFORMATION
Bandwidth
FREQUENCY RESPONSE
Lower transition point of bandwidth
input coupling in AC pos
<10 Hz
At BNC
PM3394B/90B Upper transition point of bandwidth
(Ambient 5 to 40 °C)
>200 MHz
(Ambient 0 to 50 °C)
>175 MHz
See Note 1
See Note 1
PM3384B/80B Upper transition point of bandwidth
(Ambient 5 to 40 °C)
>100 MHz
(Ambient 0 to 50 °C)
>90 MHz
With external 50Ω
With external 50Ω
PM3370B Upper transition point of bandwidth
(Ambient 5 to 40 °C)
>60 MHz
(Ambient 0 to 50 °C)
>55 MHz
With external 50Ω
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 to CH4 steps
2 mV/div to 5V/div
PM3390B/PM3380B/PM3370B
CH1 and CH2 steps
2 mV/div to 5V/div
EXT TRIG steps
0.1V/div and 1V/div
In 1-2-5 sequence
In 1-2-5 sequence
CHARACTERISTICS
1-5
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
Variable gain mode
2 mV/div to
12.5V/div
Continuously
variable
Auto Attenuator
2<div<6.4
1-2-5 steps precision
(min. 50 mV/div)
Auto Attenuator
(Windows ON)
1<div<3.2
1-2-5 steps precision
(min. 50 mV/div)
1.1.5
Input Characteristics
INPUT CONNECTOR
INPUT IMPEDANCE
(in 1 MΩ pos.)
R parallel-value
- tolerance
C parallel-value
- tolerance
BNC
Measured at freq.
<1MHz
1 MΩ
±1 %
25 pF
±2 pF
INPUT INPEDANCE
(in 50Ω pos.)
R parallel value
- tolerance
VSWR (typical)
See Note 1
PM3390B on CH1
and CH2
PM3394B all channels
50Ω
±1 %
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 coupling of input.
1.1.6
Coupling
COUPLING
dc, ac, ground
See Note 1
Note 1: In GND position: channel disconnected from input, and connected to
ground, BNC open (when not in 50Ω position). The GND coupling is
available for all channels except EXTTRIG.
1-6
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
PM3390B/PM3394B
Up to 50 MHz
Up to 200 MHz
±12 div
±4 div
Symmetrical
Symmetrical
PM3380B/PM3384B
Up to 25 MHz
Up to 100 MHz
±12 div
±4 div
Symmetrical
Symmetrical
PM3370B
Up to 15 MHz
Up to 60 MHz
±12 div
±4 div
Symmetrical
Symmetrical
+ or - ≥ 8 div
Symmetrical
+ or - ≥ 4 div
MTB and DTB
MTB fixed, DTB shifts
1.1.7
1.1.8
Dynamic Range
Position Range
POSITION RANGE
1.1.9
Trace Separation
TRACE SEPARATION
Min. range
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 through the protective
ground conductor of the power cord.
Note 2: Up to 20 KHz; >20 kHz see figure 1.1
Note 3: Maximum of 50 mJ during any 100 ms interval.
CHARACTERISTICS
CHARACTERISTICS
Figure 1.1
1.1.11
1-7
SPECIFICATION
ADDITIONAL
INFORMATION
Max. input voltage versus frequency
Step Response
5 Divisions Pulse In 50Ω Input Impedance
STEP RESPONSE
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
13 ns
PM3390B94B
PM3370B/80B/84B
DELAY BETWEEN CHANNELS
CH1 and CH2
<250 ps
CH1.... CH4
<250 ps
PM3370B/80B/90B
PM3384B/94B
1-8
CHARACTERISTICS
CHARACTERISTICS
1.1.13
SPECIFICATION
ADDITIONAL
INFORMATION
±1.3 %
Over central 6 divisions
See Note 1
Vertical Accuracies
ACCURACY
deflection factor
A: Gain error (dc)
D: Additional gain error (dc) ±0.7%
Gain error TrigView
±3 %
A: Nonlinearity
≤2 %
See Note 2
D: Digital non linearity
≤4.5 %
See Note 2
0.2 div or 1 mV
Whichever is greater
(after autocal)
MAX. BASELINE
INSTABILITY
Jump (all between
steps, var, and N/I)
Drift
Temperature coefficient
CHANNEL ISOLATION
Of deselected
channels at 10 MHz
Of deselected
channels at upper
transition point
Between selected channels
CMRR
at 2 MHz
at 50 MHz
0.1 div/h
0.03 div/K
100:1
See Note 3
50:1
50:1
See Note 4
See Note 5
See Note 6
100:1
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: Channels with equal V/div; input to deselected channels equivalent to
6 divisions.
Note 5: Channels with equal V/division settings; input to either channel 6 div.
PM3390B/94B; max. input amplitude 3Vpp
Note 6: Between any two input channels at same attenuator setting; VAR of
V/div setting adjusted for best CMRR; measured with max. 8 div.
CHARACTERISTICS
CHARACTERISTICS
1-9
SPECIFICATION
ADDITIONAL
INFORMATION
MTB only
MTB and DTB
DTB only
MTB= Main Timebase
Alternating TB-mode
DTB = Delayed
Timebase
1.2 TIMEBASE
1.2.1
Timebase (modes)
TIMEBASE MODES
Variable TB
Auto TB
MTB trigger modes
AUTO
TRIGGERED
SINGLE SHOT
SINGLE SCAN
Free run after 100 ms
DTB trigger modes
DTB starts
DTB triggered
Starts after delay time
Starts on first trigger
after delay time
1.2.2
Timebase Settings (Analog Mode Only)
MTB PM3390B/PM3394B
Settings
Variable Time/div range
0.5s/div to 20 ns/div
1.25s/div to 20 ns/div
MTB PM3370B/PM3380B/PM3384B
Settings
0.5s/div to 50 ns/div
Variable Time/div range
1.25s/div to 50 ns/div
DTB PM3390B/PM3394B
Settings
See Note 1
MTB continuously
variable
See Note 1
MTB continuously
variable
0.5s/div to 20 ns/div
See Note 1, See Note 3
DTB PM3370B/PM3380B/PM3384B
Settings
0.5s/div to 50 ns/div
See Note 1, See Note 3
TIMEBASE
MAGNIFICATION
See Note 2
10x
1 - 10
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
Note 1: In a 1-2-5 sequence. By means of the timebase magnifier (x10) the range
is extended to 2 ns/div (PM3390B/94B) or 5ns/div (PM3370B/80B/84B).
Note 2: Expands the normal time/div by 10 times (MTB and DTB)
Note 3: The DTB sweep speed is higher or equal to MTB time/div setting.
1.2.3
DTB Delay (Analog Mode Only)
DELAY TIME
2 ns to 4.9s
Position range
0.1 div to 9.9 div
Resolution
1: 40000
1.2.4
Timebase Settings (Digital Mode Only)
MTB Settings
REAL TIME SAMPLING
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
PM3370B/80B/84B
200 ns/div to 2 ns/div
200 ns/div to 5 ns/div
See Note 2
See Note 2
2 nsec ...1 µsec/div
1 µsec ... 500 µsec/div
500 µsec ... 200 sec/div
1-2-5 sequence steps
1 µsec step size
equals analog step size
Variable Timebase
Auto Timebase
Capture Range
Dynamic Range
DC up to full bandwidth
2 nsec ... 200 msec/div
DTB Settings (STARTS/TRIGGERED)
See Note 5
REAL TIME SAMPLING
0.5 ms/div to 250 ns/div or Whichever is greater
0.5 ms/div to 0.001x
MTB setting
See Note 1 and 3
RANDOM SAMPLING
only for MTB
200 ns/div to 20 ns/div or Whichever is greater
200 µs/div to 2 ns/div
200 ns/div to
0.001x MTB setting
See Note 2 and 3
CHARACTERISTICS
CHARACTERISTICS
1 - 11
SPECIFICATION
ADDITIONAL
INFORMATION
Note 1: In a 1-2-5 sequence and 250 ns.
Note 2: In a 1-2-5 sequence.
Note 3: The DTB sweep speed is higher or equal to MTB time/div. setting.
Note 4: When DTBis on: 500 ms/div to ....
Note 5: DTB is only possible with normal acquisition length. Triggered DTB is not
possible in combination with tv, logic or event delay trigger mode.
1.2.5
Timebase Delay (Digital Mode Only)
TIME DELAY
TRIGGER POSITION
Acquisition length
normal
Acquisition length max.
PM3384B/94B
PM3370B/80B/90B
-10 to 0 div
pretrigger
-640 to 0 div
-160 to 0 div
pretrigger
pretrigger, note 1
DELAY
Resolution
0 to 1000 div
steps of 0.02 div
posttrigger
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 is -640 to 0 div. pretrigger.
1.2.6
DTB Delay (Digital Mode Only)
TRIGGERED
DELAY TIME
Position range
Resolution
2 ns to 4.9 s
0.1 div to 9.9 div
1 : 40000
STARTS
DELAY TIME
Position range
Resolution
0 to 10 div of MTB setting
0 div to 10 div
1 : 40000
1 - 12
CHARACTERISTICS
CHARACTERISTICS
1.2.7
SPECIFICATION
ADDITIONAL
INFORMATION
Analog Timebase Accuracies
Unmagnified:
Magnified:
Up to 10 ns div
In 5ns/div and 2ns/div
± (1.3% of reading
+0.5% of central 8 div)
± (1.3% of reading
+1.0% of central 8 div)
± (1.8% of reading
+1.5% of central 8 div)
See Note 1
See Note 2
See Note 1
See 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
DTB in 2 µs/div
PM3390B/94B
PM3370B/80B/84B
± (0.8% of reading
+0.3% of central
8 div + Tf)
Tf = 4 ns
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 Mode)
MTB, DTB
Real Time Mode
±0.010%
Equivalent Time Mode
±0.5%
1.2.11
Jitter
DTB Jitter In Starts (Digital Mode)
120 ps
See Note 1
CHARACTERISTICS
CHARACTERISTICS
1.2.12
1 - 13
SPECIFICATION
ADDITIONAL
INFORMATION
External Horizontal Deflection
This paragraph is valid only for the analog mode. In the digital mode X versus Y
is defined as a display mode.
DEFLECTION SOURCES
PM3384B/94B
PM3370B/80B/90B
LINE DEFLECTION
Deflection
amplitude
CHANNEL DEFLECTION
Error limit
Linearity error limit
Dynamic range up
to 100 kHz
up to 2 MHz
Line and CH1 to CH4
Line, CH1, CH2, EXT TRIG
6 ±1.7 div
±5%
±2%
Between 49 and 61 Hz
at 220 volts
Refer to VERTICAL
Over central 6 divisions
See Note 1
20 div
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 signal shifted within central 8 divisions.
1.2.13
Horizontal Display Accuracy
Display Accuracy
±(0.8% of reading + 0.5% of central 8 divisions)
1 - 14
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
1.3 TRIGGERING
1.3.1
Source
MTB trigger sources
PM3384B/94B
PM3370B/80B/90B
CH1 to CH4, Line
CH1, CH2, Line, EXT TRIG
DTB trigger sources
PM3384B/94B
PM3370B/80B/90B
CH1 to CH4
CH1, CH2
1.3.2
Modes
MODES MTB triggering
PM3384B/94B
EDGE, TV,
D:PATTERN,
D:STATE,
D:GLITCH
PM3370B/80B/90B
EDGE, TV,
D:GLITCH
MODES DTB triggering
EDGE
1.3.3
Enter/exit pattern plus
timed pattern.
TV Systems
TV systems
TV
HDTV
See Note 1
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.
Note 2: n is equal to maximum lines of TV system.
CHARACTERISTICS
CHARACTERISTICS
1.3.4
1 - 15
SPECIFICATION
ADDITIONAL
INFORMATION
Coupling
BANDWIDTH EDGE
TRIGGER MTB
Vertical coupling in DC
Lower transition
point of BW
BW = Bandwidth
Trigger coupling:
DC
AC
LF-reject
HF-reject
dc
10 Hz
30 kHz
dc
Upper transition
point of BW
Trigger coupling:
DC
AC
LF-reject
HF-reject
BW = Bandwidth
)
)See sensitivity
)
30 kHz
BANDWIDTH EDGE
TRIGGER DTB
Vertical coupling in DC
Lower transition
point of BW
BW = bandwidth
Trigger coupling:
DC
AC
LF-reject
HF-reject
dc
10 Hz
30 kHz
dc
Upper transition
point of BW
Trigger coupling:
DC
AC
LF-reject
HF-reject
BW = bandwidth
)
)See sensitivity
)
30 kHz
1 - 16
CHARACTERISTICS
CHARACTERISTICS
1.3.5
SPECIFICATION
ADDITIONAL
INFORMATION
Sensitivity
EDGE TRIGGER SENSITIVITY MTB and DTB of:
PM3390B/94B
dc to 100 MHz
0.6 div
dc to 200 MHz
1.2 div
dc to 300 MHz
2.0 div
See Notes 1, 3, 4
See Note 2
PM3380B/84B
dc to 50 MHz
dc to 100 MHz
dc to 200 MHz
0.6 div
1.2 div
2.0 div
See Note 2
PM3370B
dc to 30 MHz
dc to 60 MHz
dc to 150 MHz
0.6 div
1.2 div
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
t ≥ 2 ns
1.0 div
2.0 div
See Note 5
PM3384B
Rectangle pulses
t ≥ 20 ns
t ≥ 4 ns
1.0 div
2.0 div
See Note 5
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 with a 2 divisions center screen signal.
Note 3: In noise trigger multiply stated value by 2.
Note 4: In 2 ... 5 mV/div multiply stated value by 2.
Note 5: Duty cycle 50%.
CHARACTERISTICS
CHARACTERISTICS
1 - 17
SPECIFICATION
ADDITIONAL
INFORMATION
Slope selection edge
+ or -
D:Dual slope
Up to full vertical
bandwith
MTB and DTB
See Note 1
See note 2
1.3.6
Slope
Note 1: In TV-triggering positive/negative video.
Note 2: Only in single shot, real time mode.
1.3.7
Level
LEVEL CONTROL
RANGE MTB
EDGE
Unless: In level
p(eak)p(eak)
TV
Fixed
D: PATTERN, STATE
and GLITCH
±5 div
LEVEL CONTROL
RANGE DTB
EDGE
≥±8 div
≥±8 div
See Note 1
PM3370B/80B/90B:
glitch mode only
Note 1: The control range of the trigger level is related to the peak-peak value
and duty cycle of the trigger signal.
1 - 18
CHARACTERISTICS
CHARACTERISTICS
1.3.8
SPECIFICATION
ADDITIONAL
INFORMATION
Logic Triggering Timing (Digital Mode Only)
PATTERN/GLITCH DETECTION
Max. pattern rate
150 MHz
Min. present time
PM3390B/94B
2 ns
PM3380B/84B
4 ns
PM3370B
6 ns
range t1
range t2
accuracy t1 t2
20 ns, 30 ns, 40 ns,
50 ns to 0.16s
20 ns, 40 ns,
50 ns, 60 ns to 0.16s
±5 ns
STATE DETECTION
Max. state rate
Min. setup time
Min. hold time
PM3370B/80B/90B:
glitch detection only
Pulse amplitude >2 div
Pulse amplitude >2 div
Pulse amplitude >2 div
See note 1
See note 1
Not in
PM3370B/80B/90B
150 MHz
2.5 ns
2.5 ns
Pattern to clock
Pattern to clock
Note 1: Timing behavior around t1 and t2.
Pattern valid time:
------|********|T T T T T T T T T T T T T T T T T T T|********|------t1+10 ns
t2-10 ns
t2
t1
- : 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 div
At 1 MHz input signal
Trigger gap edge
0.4 div
At 1 MHz input signal
in noise trigger
multiply by 2
FALSE TRIGGERS
1:100 000
See Note 1
Note 1: These values are not tested in production and are based on theoretical
estimates and laboratory tests.
CHARACTERISTICS
CHARACTERISTICS
1 - 19
SPECIFICATION
ADDITIONAL
INFORMATION
1.4 EVENT COUNTER
EVENT delay
PM3384B/94B
PM3370B/80B/90B
Event count
1 to 16384
Event source
PM3384B/94B
PM3370B/80B/90B
CH1 to CH4
CH1, CH2, EXT TRIG
Event slope selection
+ or -
Event clock sensitivity
DC to 50 MHz
0.5 div
Event level
8 div
Max. count frequency
50 MHz
In trigger modes EDGE
and LOGIC.
In trigger modes EDGE
and GLITCH
See Note 1
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
A: Maximum
D: Minimum
D: Maximum
2 µs or 3 divisions
of MTB setting
2s or 20 divisions
of MTB setting
4 ms
20 divisions of
MTB setting
Whichever is greater
Whichever is smaller
See Note 1
Note 1: For total hold off time, the process time must be included. See also
ACQUISITION TIME.
1 - 20
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
1.6 PROCESSING
1.6.1
Preprocessing
PREPROCESSING FUNCTIONS
Invert
Add
Subtract
D:
D:
D:
Peak detection
Average
Envelope
See Note 1
CH2; CH4
CH1+CH2; CH3+CH4;
See Note 2
CH1-CH2; CH3-CH4;
See Note 2
Real time only
See Note 3
Note 1: These functions are performed before the acquisition data is stored in
the acquisition registers. PM3370B/80B/90B; offer two 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
Add
Sub
Mul
Filter
See Note 1
See Note 2
See Note 2
See Note 2
LF filter with adjustable
-3dB point
Note 1: There may be run two processes simultaneously. The acquisition
registers can also be used as source registers. The result from process
one will be stored in memory one. The result from process two will be
stored in memory two.
Note 2: The source can be any trace from any register except the result register.
The result can be scaled.
CHARACTERISTICS
CHARACTERISTICS
1 - 21
SPECIFICATION
ADDITIONAL
INFORMATION
1.7 TRACE MEASUREMENTS (DIGITAL MODE)
TRACE MEASUREMENTS
FUNCTIONS
Horizontal
Vertical (with or
without offset)
See Note 1
Frequency
Period
Pulse width
Rise / fall
Mean
RMS
Maximum
Minimum
Peak/peak
Low
High
Overshoot
Preshoot
Duty cycle
Delay
PM3370B/80B/90B:
CH1, CH2
PM3370B/80B/90B:
CH1, CH2
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.
1 - 22
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
1.8 CURSORS
1.8.1
Cursor Control
NUMBER OF CURSORS
4
CURSOR RELATION
D:
Screen
Trace
Free
Follows the trace
CURSOR MODES
Time
Amplitude
Both
Only screen cursor
Absolute
Ratio
See Note 1
Absolute
Ratio
See Note 1
Amplitude cursor
modes
Time cursor modes
Phase cursor
Modes
Absolute
Ratio
See Note 1
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.
CHARACTERISTICS
CHARACTERISTICS
1.8.2
1 - 23
SPECIFICATION
ADDITIONAL
INFORMATION
Cursor Readouts
CURSOR READOUTS
READOUT RESOLUTION
dV
dT
V to GND
1/dT
dQ(Q1, Q2)
T-trig
See Note 1
See Note 1
See Note 2
See Note 3
3 digits
Note 1: In the "MTB + DTB timebase" and "DTB", all waveform operations and
measurements are performed on the DTB traces.
Note 2: Refer to trigger point (Q1, Q2)
Refer to start of trace (Trace in 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
Manual
±1% of FULL SCALE
Note 1
Time measurements
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 2
Note 1: Measured with 1 kHz square wave within central 6 div.
Note 2: within central 8 div.
1.8.4
Cursor Accuracies (Digital Mode)
ERROR LIMIT
VERTICAL
See vertical accuracy
ERROR LIMIT
HORIZONTAL
See horizontal accuracy
1 - 24
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
1.9 DIGITAL ACQUISITION
1.9.1
Modes
MODES
Select one:
1.9.2
Recurrent
Single shot/scan
Roll
Stop on trigger
continuous
Sample Rate
Real time
Max. Sample
rate 200MS/s
250 ns/div to 200s/div
See Note 1
Equivalent time:
Random sampling
See Note 1
PM3390B/94B
PM3370B/80B/84B
Max. 25GS/s
Max. 10GS/s
2 ns/div to 0.2 µs/div
5 ns/div to 0.2 µs/div
Note 1: Sampling rate depends on time/division 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)
Any other combination
for timebase settings
200s/div to 10 µs/div
5 µs/div to 2 ns/div
Max. Chop freq.
simultaneously
See Note 1
CHOPPED
ALTERNATED
See Note 2
5 MHz
Note 1: At 250 ns/div each of the four channels is acquired in alternated mode.
Note 2: When peak detection is activated the multiplexing is in alternating mode.
CHARACTERISTICS
CHARACTERISTICS
1.9.4
1 - 25
SPECIFICATION
ADDITIONAL
INFORMATION
Trace Memory
PM3384B/PM3394B
This digitizer has a total acquisition memory size of 32K bytes. To apply this
memory as efficiently as possible, it is shared by all channels connected to it. The
following section summarizes the effects:
Record length normal
1 to 4 channels selected
512 samples/channel
Record length ’Max’
3 or 4 channels selected
2 of 4 channels selected
1 of 4 channels selected
8K samples/channel
16K samples/channel
32K samples
Display
501 samples/trace
See Note 1
PM3370B/80B/90B:
This digitizer has a total acquisition memory size of 8K bytes. To apply this
memory as efficiently as possible, it is shared 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’
2 channels selected
2 channels selected
1 of 2 channels selected
2K samples/channel
4K samples/channel
8K samples
See Note 1 and 4
See Note 2
See Note 3
See Note 3
Display
501 samples/trace
Note 1: When peak detection or envelope is activated, all "max" record length
figures have to be divided by 2 because samples are stored as
peak/peak combinations.
Note 2: Trigger view possible.
Note 3: No trigger view possible.
Note 4: When extended memory option is installed total acquisition memory is
32K bytes, shared by both channels and external trigger. This results in
the following max. record lengths:
2 channels and trig.view
8K samples/channel.
2 channels, no trig.view
16K samples/channel.
1 of 2 channels, no trig.view 32K samples/channel.
1 - 26
CHARACTERISTICS
CHARACTERISTICS
1.9.5
SPECIFICATION
ADDITIONAL
INFORMATION
Acquisition Time
The process time between acquisitions depends from the selected settings and
the selected processing. Therefore it is not possible to catch the process time
between acquisitions in a formula. The next table gives an indication of the
performance of the processing capabilities.
Process time between
acquisitions 500 ns/div
one channel
no trigger delay
acquisition length = 512
500 ns/div
two channel
no trigger delay
acquisition length = 512
average = 8
Equivalent time
Timebase:
- at 2 ns/div
- at 0.2 µs/div
6 ms
16 ms
See Note 1
Holdoff is min and no
processes or
measurements are
active
Holdoff is min and no
other processes or
measurements are
active
See Note 2
2s
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: After the specified time, there is a 99% probability of all sample positions
being updated to the new acquisition. Trigger frequency >2 kHz. These
values are not tested in production and are based on theoretical
estimates and laboratory tests.
1.9.6
Resolution
ACQUISITION
RESOLUTION
8 bits
over 10.24 divisions
CHARACTERISTICS
CHARACTERISTICS
1.9.7
1 - 27
SPECIFICATION
ADDITIONAL
INFORMATION
Registers
NUMBER OF
REGISTERS
Acquisition length:
PM3384B/94B:
- Normal
- Max:
-4x8K
-2x16K
-1x32K
WORD LENGTH
PM3370B/80B/90B:
- Normal
- Max:
-2x2K
-2x4K
-1x8K
WORD LENGTH
Including current
acquisition
One set contains:
51 sets
3 sets
Four traces
Four traces
Two traces
One trace
16 bits
9 sets
3 sets
Note 1
Two traces
Two traces
Two traces
One trace
+ Trig.
View
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
Clear
Save
Copy
Recall
Register Manipulations
The contents of the
selected register is set
to zero
The contents of the
acquisition register is
stored in the selected
register
The contents of a
selected register is
stored in another
selected register
The register can be
made visible on the
display or can be
removed from the
display
1 - 28
CHARACTERISTICS
CHARACTERISTICS
1.9.9
SPECIFICATION
ADDITIONAL
INFORMATION
Digital Acquisition Accuracies
SAMPLING RATE ERROR
±0.01%
TIME UNCERTAINTY
At double sampling rate
±100ps
X-tal
1.10 FRONT PANEL MEMORY
Memory size
10 fronts
1.11 BLANKING OR Z-AXIS (ONLY FOR ANALOG TRACE)
Input connector
Input impedance
Input coupling
Max input voltage
Input voltage unblank
Input voltage blanked
Response time
BNC
10 kΩ
dc
±10V
0.5V or less
+ 2.4 V or more
80 ns
See Note 1
See Note 1
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 analog mode.
CHARACTERISTICS
CHARACTERISTICS
1 - 29
SPECIFICATION
ADDITIONAL
INFORMATION
Electrostatic
80 mm x 100 mm
Vector
8 x 10 divisions
1.12 DISPLAY
1.12.1
CRT
CRT
Deflection
Dimensions (hxw)
Phospor
Standard
GRATICULE
Y-AXIS
ORTHOGONALITY
ACCELERATING
VOLTAGE
Writing speed
TRACE ROTATION
Min. range
Min. overrange
Green GH (P31)
Fixed
90 ° ±0.5 °
16.5 kV
>1.8cm/ns
10 °
2°
TRACE DISTORTION
At center of screen
<0.3 mm
Else
<1.0 mm
1.12.2
Modes
PRESENTATION MODES
Y versus T
Y versus X
Screwdriver adjustment
External field <0.1 mT
Deviation from straight
line inside 6 x 8 div
1 - 30
CHARACTERISTICS
CHARACTERISTICS
1.12.3
SPECIFICATION
ADDITIONAL
INFORMATION
Vertical Display Manipulations (Digital Mode)
Linear
Linear interpolations
between measured
dots
Sine like interpolation
between measured
dots
Sine
Vertical magnify
2, 4, 8, 16, 32
Windows
1, 2, 4
PM3384B/94B
PM3370B/80B/90B
Recall trace
Each trace has his own
place on the screen
max. 4 traces
max. 3 traces
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 greater than 512 byte it is possible to make the
magnification factor less than one (compress mode) to display the
complete trace on the screen.
CHARACTERISTICS
CHARACTERISTICS
1 - 31
SPECIFICATION
ADDITIONAL
INFORMATION
1.13 EXTERNAL INTERFACES
1.13.1
Calibrator
WAVEFORM
Shape
square wave
INTERNAL
IMPEDANCE
Value
1200Ω
OUTPUT VOLTAGE
Peak-peak value
Tolerance
600 mV
1%
See Note 1
OUTPUT CURRENT
Peak-peak value
0.5 mA
See Note 2
FREQUENCY
Value
Tolerance
2kHz
±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
PINNING
PIN
1
2
3
4
5
6
7
8
9
I/O
I
O
O
I
O
I
-
NAME
RXD
TXD
DTR
GND
DSR
RTS
CTS
-
CPL (compact
programming
language) See
operating guide
Not connected
Received data
Transmitted data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
Not connected
1 - 32
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
TRANSMISSION MODES
Asynchronous
Full duplex
HANDSHAKE
Hardware
ADDITIONAL
INFORMATION
RTS/CTS and
DSR/DTR
XON/XOFF
Default: not active
See Note 1
Default: not active
See See Note 1
BAUDRATE
75,110,150,300
600,1200,2000,
2400,4800,9600
19200,38400
Receiving and
transmitting
Default:1200
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
Software
ELECTRICAL
TXD and RXD
Spacing "0"
Marking "1"
≥ +3V
≤ -3V
RTS,CTS,DSR and DTR
ON
OFF
≥ +3V
≤ -3V
Current output
≤10mA
Impedance
Output
Input
300Ω ±10%
≥3 kΩ ≤7kΩ
Voltage
Output
Input
≥ -12V ≤ +12V
≥ -25V ≤ +25V
Connector
Shielded
9 pole RAP male
connector according
MIL-C-24308
Note 1: Selectabele via UTILITY menu and CPL. When battery installed, same
as last power-off value.
CHARACTERISTICS
CHARACTERISTICS
1.13.3
SPECIFICATION
ANSI/IEEE 488.2
SCPI
See section 1.20.5
Printers and plotters support
PRINTERS
HP-thinktjet
LQ1500
FX80
HP-LASER
HP-540
PLOTTERS
HPGL
HP7440
HP7550
HP7475A
HP7478A
PM8277
PM8278
1.13.5
ADDITIONAL
INFORMATION
Optional external interfaces
IEEE
1.13.4
1 - 33
Real Time Clock
(RTC)
Select:
Time of trigger
or
Time of pressing
hardcopy button
Note 1
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.
1 - 34
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
1.14 AUTO SET & CALIBRATION
1.14.1
Auto Set
Vertical deflection
2...5 div
Note 1
Horizontal deflection
Max. 6 periods on CRT
at input signal
10 mV...25V
40 Hz...30 MHz
Note 1
Note 1: AUTO SET selects the proper channel, sets vertical deflection, timebase
speed, intensity, and triggering for 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
Tolerance
100V to 240V
±10%
LINE FREQUENCY
Nominal
Limits of operation
50 Hz to 400 Hz
45 Hz to 440 Hz
LINE WAVEFORM
Max. waveform
deviation factor
Crest factor
CAT II Pol 2
At nominal source
voltage
10%
1.27 to 1.56
CHARACTERISTICS
1 - 35
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
ALLOWABLE POWER
INTERRUPTION
20 ms
See Note 1
POWER CONSUMPTION
Without options
Max. power
consumption
130W
POWER CORD
Length
Power plug
2.1m (82.7 in)
Nat.version
115W
Note 1: At the lowest allowable source voltage. After this time the oscilloscope
data is saved before the instrument goes down, and an automatic poweron sequence starts after restoration of the power source voltage.
1.15.2
Battery Backup
DATA AND SETTINGS
RETENTION
See Note 1
Retention time
Batteries:
Recommended type
Quantity
2 years
LR 6
2
See Note 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
batteries from instrument when it is stored during longer periods
(>24 hours) below -30 °C or above 60 °C. UNDER NO
CIRCUMSTANCES SHOULD BATTERIES BE LEFT IN THE
INSTRUMENT AT TEMPERATURES BEYOND THE RATED RANGE
OF THE BATTERY SPECIFICATION
1 - 36
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
1.16 MECHANICAL CHARACTERISTICS
PORTABLE VERSION
Dimensions:
Length
481 mm (19 in)
Width
341 mm (13,5 in)
Height
139 mm ( 5,5 in)
Weight:
Instrument
9.5 kg (19,7 lb)
COOLING
Regulated
Forced air
Handles excluded
Add 5 mm (0.2 in) for
cover
Add 65 mm (2.5 in) for
handle
Add 50 mm (2 in) for
handle
Add 8 mm (0.3 in) for feet
No air filter
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 otherwise).
1.17.2
Environmental
TEMPERATURE
Operating:
min.low temp.
max.high temp.
Nonoperating (storage):
min. low temp.
max. high temp.
See Note 1
0 °C
+50 °C
-40 °C
+70 °C
CHARACTERISTICS
CHARACTERISTICS
MAX. HUMIDITY
Operating and Non
operating (storage)
MAX. ALTITUDE
Operating
Nonoperating
(storage)
1 - 37
SPECIFICATION
See Note 1
95%
3 km (10000 ft)
Relative humidity
noncondensing
See Note 2
See Note 3
12 km (39000 ft)
VIBRATION
(OPERATING)
Freq. ranges:
At each freq.range:
Cycling time
Resonance search
Resonance dwell
ADDITIONAL
INFORMATION
5 Hz to 15 Hz
16 Hz to 25 Hz
26 Hz to 55Hz
See Note 4
g level at max. freq.:
0.7 at 15 Hz
1.3 at 25 Hz
3 at 55 Hz
15 min
5 min
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 (OPERATING)
Amount of shocks
total
each axis
Shock waveform
Duration
Peak acceleration
BENCH HANDLING
Meets requirements of
See Note 6
18
6
half sinewave
6-9 ms
400 m/s2
3 in each direction
See Note 7
MIL-ST-810
method 516
procedure V
1 - 38
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
TRANSPORTATION
Drop height 0.76m
See Note 9
SALT ATMOSPHERE
Structural parts
See Note 8
Note 6: In accordance with MIL-T-28800 par. 3.7.5.1.
Note 7: In accordance with MIL-T-28800 par. 3.7.5.3.
Note 8: In accordance with MIL-T-28800 par. 3.7.8.1.
Note 9: Drop in shipping container on 8 corners, 12 edges, 6 surfaces.
1.17.3
1.17.3.1
EMI
Meets MIL-T 28800D Type III Class 3 (Navy requirement, unless
specified otherwise).
Meets MIL-STD-461C as follows:
- Conducted Emissions
Part 2
Part 4
- Conducted Susceptibility
Part 2
Part 5
- Radiated Emissions
Part 5,6
Part 2
1.17.3.2
CEO1
CEO3
CSO1
CSO6
REO1
REO2
(Narrow band)
(Limited to 300V)
(1 GHz max)
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 par. 5.1.3.1. The maximum
deflection factor is 7 mm/mT (0.7 mm/gauss). This value measured with the
instrument in a homogeneous field (in any direction with respect to the instrument)
with a flux intensity (peak to peak value) of 1.42 mT (14.2 gauss) and of
symmetrical sine wave form with a frequency of 45 Hz to 66 Hz.
CHARACTERISTICS
1 - 39
The
PM3370B, PM3380B and SPECIFICATION
PM3384B, including standard
accessories,
CHARACTERISTICS
ADDITIONAL
conform with the EEC Directive 89/336 for EMI immunity, as
defined by EN50081INFORMATION
1 (1992) and EN50082-1 (1992), with the addition of the following tables.
Table 1.
Susceptibility: no visible disturbance
Frequency range:
10 kHz .. 25 MHz
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
2 mV/div ... 5 V/div
With PM9010/09x
2 mV/div ... 5 V/div
20 mV/div ... 5 V/div
100 mV/div ... 5 V/div
Table 2.
Susceptibility: no visible disturbance
Frequency range:
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
Frequency range:
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
20 mV/div ... 50mV/div
Table 4.
Susceptibility: disturbance less than 10 % of full scale
Frequency range:
25 MHz ... 1 GHz
E = < 0.1V/m
E = 1V/m
E = 3 V/m
Stand alone
N/A
N/A
2 mV/div ... 5 mV/div
With PM9010/09x
N/A
20 mV/div ... 50 mV/div
50 mV/div .... 200 mV/div
For conditions not specified in tables 1 - 4, a susceptibility effect of more than 10 % is possible.
1 - 40
CHARACTERISTICS
The
PM3390B and PM3394B, SPECIFICATION
including standard accessories,
conform with the
CHARACTERISTICS
ADDITIONAL
EEC Directive 89/336 for EMI immunity, as defined by EN50081-1
(1992) and
INFORMATION
EN50082-1 (1992), with the addition of the following tables.
Table 5.
Susceptibility: no visible disturbance
Frequency range:
10 kHz .. 25 MHz
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
2 mV/div ... 5 V/div
With PM9020/09x
2 mV/div ... 5 V/div
20 mV/div ... 5 V/div
50 mV/div ... 5 V/div
Table 6.
Susceptibility: no visible disturbance
Frequency range:
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
Frequency range:
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
10 mV/div ... 20 mV/div
Table 8.
Susceptibility: disturbance less than 10 % of full scale
Frequency range:
25 MHz ... 1 GHz
E = < 0.1V/m
E = 1V/m
E = 3 V/m
Stand alone
N/A
N/A
5 mV/div
With PM9020/09x
N/A
20 mV/div ... 50 mV/div
50 mV/div ... 100 mV/div
For conditions not specified in tables 5-8,, a susceptibility effect of more than 10 % is possible.
CHARACTERISTICS
CHARACTERISTICS
1 - 41
SPECIFICATION
ADDITIONAL
INFORMATION
EN61010-1, Cat II Pol 2
Except for power cord,
unless shipped with
Universal European
power plug
UL 3111-1, Cat II Pol 2
Except for power cord,
unless shipped with
Universal North
American power plug
CSA C22.2
No.1010.1-92,
Cat II Pol 2
Except for power cord,
unless shipped with
Universal North
American power plug
1.18 SAFETY
Meets requirements of
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
Operating guide
Reference manual
2x10 MΩ 10:1 probe
Contrast filter
Front cover
With readout (1.5 m)
Blue
Can be locked on instr.
1 - 42
CHARACTERISTICS
CHARACTERISTICS
SPECIFICATION
ADDITIONAL
INFORMATION
1.20 OPTIONS & OPTIONAL VERSIONS
1.20.1
Options Line cord
LINE CORD
1.20.2
In accordance with EN
North American
In accordance with
CSA, UL
United Kingdom
In accordance with BSI
Australian
In accordance with SAA
Swiss
In accordance with SAV
Options digital versions
EXTERNAL INTERFACES
INTERNAL EXTENSIONS
1.20.3
Universal
European
IEEE
EXTENDED
MEMORY
MATH+
Factory installed only
Factory installed only
Factory installed only
Y-out, MTB gate,
DTB-gate, ExtTrig.
IEEE
See Note 1,
Factory installed only
Factory installed only
Options analog
EXTERNAL INTERFACES
Note 1: Ext trig is a standard feature in PM3370B/80B/90B. For characteristics
refer to chapter 1.3.5.
CHARACTERISTICS
CHARACTERISTICS
1.20.4
1 - 43
SPECIFICATION
ADDITIONAL
INFORMATION
Specification optional outputs
Y SIGNAL OUT
Source
Coupling
Voltage:
into 1 MΩ
into 50Ω
Freq. response:
PM3390B/94B
PM3380B/84B
PM3370B
Dynamic range
MTB GATE OUT
Connector
Output impedance
Voltage:Timebase
not running
Timebase running
DTB GATE OUT
Connector
Output impedance
Voltage:Timebase
not running
Timebase running
BNC
CH1
as CH1
20mV/div ±10%
10mV/div ±10%
Terminated with 50Ω
dc to 200 MHz
dc to 100 MHz
dc to 60 MHz
±10 div
BNC
1 kΩ
0.2 ± 0.2V
3.7 ± 1.3V
BNC
1 kΩ
0.2 ± 0.2V
3.7 ± 1.3V
At 50 MHz
1 - 44
CHARACTERISTICS
CHARACTERISTICS
1.20.5
SPECIFICATION
ADDITIONAL
INFORMATION
Specification External trigger option
Valid for ext trig option in PM3384B/94B
(External trigger input is a standard feature in PM3370B/80B/90B)
SOURCE
SOURCE(S) MTB-triggering CH1 ... CH4
External
Line
INPUT CHARACTERISTICS
INPUT CONNECTOR
BNC
INPUT IMPEDANCE
At rear of instrument
Measured at freg.
<1MHz
R parallel - value
- tolerance
C parallel - value
- tolerance
1 MΩ
±1%
25 pF
±5 pF
DYNAMIC RANGE
Up to 10 MHz
±2.5V
MAX. INPUT VOLTAGE
Max. input voltage 150 V rms
Symmetrical
See note 1,2
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.
SENSITIVITY
EDGE TRIGGER SENSITIVITY
d.c. to 5 MHz
100 mV
d.c. to 10 MHz
200 mV
Note 3: In noise-trigger multiply stated value by 2.
See note 3
CHARACTERISTICS
CHARACTERISTICS
1 - 45
SPECIFICATION
ADDITIONAL
INFORMATION
±1.45V
≤0.45V
See note 4
at 1 kHz input signal
triggercoupling DC
TRIGGER LEVEL
TRIGGERLEVEL
Range
Accuracy
Note 4: With Level-pp on the range is restricted to the peak-peak value of the
trigger signal.
1.20.6
Specification IEEE-OPTION
TYPE OF
INTERFACE
ANSI/IEEE 488.2
SCPI (see SCPI
programming manual)
See Note 1
INTERFACE REPERTORY
Source handshake
Acceptor handshake
Talker
SH1
AH1
T5
Listener
L3
Service request
Remote local
Parallel poll
Device clear
Device trigger
Controller
SR1
RL1
PP0
DC1
DT1
C0
Complete capability
Complete capability
Basic talker: yes
Serial poll : yes
Talk only : yes
Unaddress if MLA: yes
Basic listerner: yes
Listener only : yes
Unaddress if MTA: yes
Complete capability
Complete capability
No capability
Complete capability
Complete capability
No capability
1 - 46
CHARACTERISTICS
ELECTRICAL
INTERFACE
CHARACTERISTICS
Busdrivers
SPECIFICATION
E2
ADDITIONAL
Three
state (true=0
INFORMATION
to 0.8V;false=2 to 5V)
Connector
Shielded
Amphenol type
57FE-20240-20SD35
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
Pin
DIO1...DIO4
DIO5...DIO8
GND
Logic GND
EOI
DAV
NRFD
NDAC
IFC
SRQ
ATN
Shield
REN
1 ... 4
13 ... 16
18 ... 23
24
5
6
7
8
9
10
11
12
17
FUNCTION SELECTION
Via UTILITY-MENU
INTERFACE STATUS
INDICATOR
On screen
Busaddress
Default: 8
See Note 2
Note 1: Talker/listener
Note 2: When battery installed, same as last power-off value.
2-4
Figure 2.1
PRINCIPLE OF OPERATION
Blockdiagram
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 ’µC’ 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 50Ω
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.
2-2
-
-
PRINCIPLE OF OPERATION
Each channel can be switched on/off with the ON key and bandwidth can be
limited to 20 MHz via BW LIMIT ’on’ in the VERT MENU.
Trigger source selection for MTB and DTB is done via the keys TRIG1 ...
TRIG4 and the menu under the DTB key. PM3370B/80B/90B offer trigger
source selection via TRIG1, TRIG2 and EXT TRIG.
The vertical signal position of each channel can be adjusted with a POS
control.
The FINAL VERTICAL AMPLIFIER drives the vertical deflection system of the
Cathode Ray Tube (CRT). The TRACE SEPARATION key pair adjusts the vertical
distance between MTB and DTB display, when in Alternate Timebase Mode.
2.4 HORIZONTAL DEFLECTION
The horizontal deflection consists of the blocks TRIGGERING, TIMEBASE and
FINAL VERTICAL AMPLIFIER. TRIGGERING and TIMEBASE are both split up
in sections for MTB and DTB; these sections are almost identical.
Triggering can be done via CH1 ... CH4 (PM3370B/80B/90B; CH1, CH2, EXT
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 a so-called sawtooth signal that gives a time linear
horizontal display on the CRT. The following controls influence the timebase:
-
-
MTB/VAR and DTB adjust the horizontal time scale of MTB and DTB. The best
MTB time scale is selected automatically if AUTO RANGE is active.
The TB MODE key permits selection between auto (free run), trig(gered) and
single (shot) mode of MTB. The SINGLE RESET key resets the MTB when in
single shot mode.
The DTB key permits selection of the operating modes of the DTB.
The HOLD OFF control adjusts the period of time that the MTB does not start
upon receipt of a trigger.
The DELAY control adjusts the time delay between start of MTB and DTB.
X POS controls the horizontal position of the signal display.
PRINCIPLE OF OPERATION
2-3
2.5 CRT DISPLAY SECTION
This section determines the intensity and focusing of the signal on the screen.
The intensity of trace and text/cursors can be adjusted separately with the
controls TRACE INTENSITY and TEXT INTENSITY. The FOCUS control
determines the sharpness of text and traces. Moreover focusing is controlled such
that changes in intensity do not affect display sharpness.
2.6 POWER SUPPLY
This POWER SUPPLY converts a wide range of line input voltages into stable
supply voltages that feed the circuits in the oscilloscope. Also the very high
voltages for the CRT are made by the power supply. Another output signal is used
to trigger the MTB if ’line’ is selected as trigger 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/cursors is done in the block DIGITIZER AND TEXT
GENERATOR.
For display on the CRT, the digital information is converted into analog and
applied to the final amplifiers for VERTICAL and HORIZONTAL deflection. The
FOCUS and INTENSITY parts are controlled in a similar way. Switching between
ANALOG MODE and DIGITAL MODE is done via the ANA/DIGI switches that are
operated by the DIGITIZER AND TEXT GENERATOR. The switches are
incorporated in the inputs of the output stages of Final Y, Final X, Intensity and
Focusing.
BRIEF CHECKING PROCEDURE
3-1
3 BRIEF CHECKING PROCEDURE
3.1 General information
This procedure is intended to verify the instrument’s functions with a minimum of
test steps and actions required.
It is assumed that the operator doing this test is familiar with this kind of
instruments and their characteristics.
WARNING:
Before turning on the instrument, ensure that it has been
installed in accordance with the instructions mentioned in
Chapter 2 of the Operation Guide.
NOTE: The procedure does not verify every facet of the instrument’s calibration;
rather, it is concerned primarily with those parts of the instrument that are
essential to measurement accuracy and correct operation.
Removing the instrument covers is not necessary to perform this
procedure. 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 the ‘PERFORMANCE TEST’ section in
Chapter 4 of this Reference Manual (for qualified persons only).
The check can be used for different instrument types. Where differences exist,
they are indicated (e.g., in the vertical channels). Those test steps can be
skipped.
3.2 Preliminary settings of the controls
For ease of reading the following abbreviations are used:
CW
CCW
CRT
MTB
DTB
= Clockwise (rotation direction of a control)
= Counter Clockwise (rotation direction of a rotary control)
= Cathode Ray Tube (the oscilloscope’s viewing area)
= MAIN TB
= DELAYED TIMEBASE, DEL’D TB
3-2
BRIEF CHECKING PROCEDURE
Trace alignment:
- Turn the oscilloscope on with the POWER ON OFF key.
- Press the STATUS and TEXT OFF keys simultaneously. This ensures that the
oscilloscope is in the default mode. The default mode is the basis of this brief
checking procedure.
- Press the AUTOSET key.
- Turn the TRACE INTENSITY control so that a clearly visible horizontal line
appears on the CRT.
- Press the TEXT OFF key when no text is present on the CRT. Turn the TEXT
INTENSITY control so that clearly visible text appears on the CRT.
- Turn the FOCUS control to make the line and text look as sharp as possible
across the CRT area.
- Turn the GRATICULE ILLUMINATION control so that the desired illumination
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 is now
optimized.
Probe adjustment:
- Connect a 10 : 1 probe to the CH1 input.
- Connect the probe tip to the Probe Adjust output socket.
- Press the green AUTOSET key.
- Verify that a square-wave signal is displayed on the CRT.
- Verify that top and bottom of the square wave are straight: if not, this must be
corrected by adjusting the probe. The correction is done with a small
screwdriver. This adjustment is made in the box at the oscilloscope input side
of the probe: refer to figure 3.1 for this.
BRIEF CHECKING PROCEDURE
3-3
ST6024
9303
Figure 3.1
Probe adjustment
Note :
- The POS CH1, POS CH2, POS CH3, POS CH4 and X POS controls need
occasional readjustment 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.
3-4
BRIEF CHECKING PROCEDURE
Repeatedly pressing the TEXT OFF key allows you to select the amount of
information on the display.
CURSORS DTB
DISPLAY
CURSOR MENU HEADER
CURSOR READ OUT
TB MODE TRIGGER ....
SOFTKEYS
SETTINGS READ OUT
SYMBOLS: ↓ :INVERT ON
= :DC COUPLED INPUT
:AC COUPLED INPUT
:GROUNDED INPUT
:POS TRIGGER SLOPE
:NEG TRIGGER SLOPE
:DUAL SLOPE (DIGITAL MODE)
Figure 3.2
ST6648
9312
CRT viewing area, softkeys, menu keys, and symbols used in this
chapter.
3.3 Vertical section
The vertical section consists of four channels CH1, CH2, CH3 and CH4. The
vertical section in PM3370B/80B/90B consists of two channels CH1 and CH2 that
must be checked. These are almost identical. The procedure is described for
CH1. Steps for CH2, CH3 and CH4 are shown in parenthesies. To check all four
or two channels, the procedure must be done four or two times. For PM3370A/
80A/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 AUTOSET key.
BRIEF CHECKING PROCEDURE
-
3-5
The Probe Adjust output square-wave voltage should be well triggered. The
waveform must be easy to read.
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly): the
oscilloscope is now in digital mode.
Press the AUTOSET key again.
Adjust the AMPL keys to an input sensitivity of 100mV/div.
Adjust the MAIN TB TIME/DIV keys pair to 100 µs/div.
Verify that a square wave as indicated in Fig. 3.3 is displayed.
CH... 100mV
CH...100mV
MTB 100µs
Figure 3.3
MTB 100µs
ST6651
ST6649
Figure 3.4
Input coupling and POS control:
- Press the AC/DC/GND key so that dc input coupling (=) 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 in a horizontal line in the lower part of the CRT.
- Turn the POS control CW until the line is in the middle of the screen.
- Press the AC/DC/GND key so that ac input coupling ( ) is obtained. The
waveform as indicated in Fig. 3.3 is displayed again.
3-6
BRIEF CHECKING PROCEDURE
AMPL and VAR functions (this test is skipped for channels where AMPL is a
toggle key):
- Press the lower AMPL key and verify that the signal amplitude is 3 divisions.
The input sensitivity is 200mV/div.
- Press the upper AMPL key twice and verify that the amplitude is bigger than
the screen height of 8 divisions. Use the POS control to shift the top and
bottom of the signal into the screen area.
- Press both AMPL keys; this activates the VAR function. Now input sensitivity
can be adjusted in fine steps. The message ’VARIABLE ATTENUATION’ is
displayed briefly.
- Press the lower AMPL key until a readout of 150 mV is reached.
- Turn the POS control to position the waveform in the middle of the screen.
- Check for a display as indicated in Fig. 3.5.
CH... 150mV
↓CH... 150mV
MTB 100µs
MTB 100µs
st6653
Figure 3.5
ST6654
Figure 3.6
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. The signal amplitude is
bigger now than the 8 divisions screen height.
- Press the channel’s AUTO RANGE key and check that the input signal is
again visible with an amplitude between 2 and 6.4 divisions.
- Press the lower AMPL key and select 2.00 V/div. The signal amplitude is very
small and it may be that the instrument is not triggered.
- Press the channel’s AUTO RANGE key and check that the input signal is
again visible with an amplitude between 1.2 and 6.4 divisions.
BRIEF CHECKING PROCEDURE
3-7
TRIG VIEW channel and EXT TRIG in PM3370B, PM3380B or PM3390B:
- Connect a probe to the EXT TRIG input and PROBE ADJUST.
- Press the EXT TRIG key.
- Press the TRIG VIEW key. Switch CH1 or CH2 off if they are on.
- Adjust the AMPL key in the EXT TRIG section to an input sensitivity of 1.00V.
- Check 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 analog mode
("ANALOG MODE’ appears briefly).
-
CH... 1.00V
CH... 1.00V
MTB 100µs
Figure 3.7
MTB 100µs
ST6652
ST6650
Figure 3.8
3-8
BRIEF CHECKING PROCEDURE
3.4 Horizontal section, MAIN TB and DELAYED TIME
BASE.
Preparation:
- Connect a probe to the CH1 input.
- Connect the probe tip to the Probe Adjust output socket.
- Press the AUTOSET key.
- Adjust the AMPL keys to an input sensitivity of 100mV/div.
- Adjust the MAIN TB TIME/DIV keys to 100 µs/div.
- Verify that a square-wave as shown in Fig. 3.3 is displayed.
MTB trigger slope:
- Press the TRIG 1 key and verify that the displayed square-wave starts with a
negative-going signal.
- Press the TRIG 1 key again and verify that the displayed square-wave starts
with a positive-going slope as indicated in Fig. 3.3.
Time coeficients MAIN TB and VAR in analog mode:
- Press the left of the MAIN TB TIME/DIV keys and verify that the number of
signal periods increases.
- Select 500 µs/division and verify that one signal period is displayed per division.
- Press both MAIN TB TIME/DIV keys: this activates the VAR mode. The
message ’VARIABLE TIMEBASE’ is displayed briefly.
- Press 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 that the number of
signal periods decreases.
- Select 100 µs/division with the MAIN TB TIME/DIV keys and verify that the
square wave is displayed as shown in Fig. 3.3.
MAIN TB and DELAYED TIMEBASE functions:
- Press the lower CH1 AMPL key so that an input sensitivity of 200 mV/division
is obtained for channel 1.
- Use the CH1 POS control to position the signal in the upper half of the screen.
- Press the DTB menu key: the DELAYED TIMEBASE menu appears at the
CRT softkeys.
- Select DEL’D TB ’on’ and MAIN TB ’on’ from this menu.
- Use the DELAYED TIMEBASE keys, to select 20.0 µs/division.
- Adjust the DELAY control in the DELAYED TIMEBASE section so that the
display shown in Fig. 3.9 is obtained. For this the TRACK control must be
adjusted so that MAIN TB is above the DEL’D TB display.
BRIEF CHECKING PROCEDURE
-
-
-
3-9
Press the left of the DELAYED TIMEBASE TIME/DIV keys and verify that the
number of the displayed signal periods increases. The lowest TIME/DIV range
is 100 µs/division.
Press the right of the DELAYED TIME BASE TIME/DIV keys and verify that
the number of displayed periods increases. Proceed until the time scale of
50.0 µs/division is reached.
Select ’trig’d’ from the DELAYED TIME BASE menu.
Press the front panel key TRIG1 if the DELAYED TIMEBASE is not triggered
on CH1. This is indicated in the lower right corner of the display.
Use the ∆ control to adjust the trigger level of DELAYED TIMEBASE for
a triggered display (signal on DEL’D TB time scale visible).
MAIN TB DISPLAY
TRACK
DELAY TB DISPLAY
CH1 0.2V
MTB ...
DTB ...
400µs
POS
ST6655
Figure 3.9
MAIN 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 key and triggering on the positive slope is obtained again.
- Press the left side of the MAIN TB TIME/DIV keys and verify that the number
of signal periods increases.
- Select 500 µs/division and verify that one signal period is displayed per
division.
- Press the right side of the MAIN TB TIME/DIV keys and verify that the number
of signal periods decreases.
- Use the MAIN TB TIME/DIV to select 20.0 µs/division.
3 - 10
BRIEF CHECKING PROCEDURE
AUTO RANGE function:
- The AUTO RANGE function of the main time base (MAIN TB) adjusts the time
base automatically so that 2 to 6 waveform periods are displayed.
- Press the AUTO RANGE key in the time base section.
- Check that the time base is readjusted so that 2 to 6 waveform periods are
displayed.
- Press the left of the MAIN TB TIME/DIV keys until MTB 2.00ms is displayed.
- Press the AUTO RANGE key in the time base section.
- Check that the time base is readjusted so that 2 to 6 waveform periods are
displayed.
- Press the AUTO RANGE key in the time base section.
- Adjust MAIN TB TIME/DIV to 100µs/div.
MAIN TB and DELAYED TIMEBASE functions:
- Press the lower CH1 AMPL key so that an input sensitivity of 200 mV/division
is obtained for channel 1.
- Use the CH1 POS control to position the signal in the upper half of the screen.
- Press the DTB menu key, the DELAYED TIME-BASE menu appears above
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 verify that
the number of displayed signal periods increases. The lowest TIME/DIV range
is 100 µs/division.
- Press the right side of the DELAYED TIME BASE TIME/DIV keys and verify
that the number of displayed periods increases. Proceed until the time scale
of 50.0 µs/division is reached.
-
Select ’trig’d’ from the DELAYED TIME BASE menu.
Press the front panel key TRIG1 if the DELAYED TIMEBASE is not triggered
on CH1. This is indicated in the lower right corner of the display.
Use the ∆ control to adjust the trigger level of DELAYED TIMEBASE for a
triggered display. The signal on the DEL’D TB time scale is visible.
Press the ANALOG key to switch the instrument back to analog mode
(’ANALOG MODE’ is displayed briefly.
BRIEF CHECKING PROCEDURE
3 - 11
3.5 Horizontal section, X-deflection.
Preparation:
- Connect a probe to the CH1 input.
- Connect the probe tip to the Probe Adjust output socket.
- Press the AUTOSET key.
- Press the AMPL keys to adjust to an input sensitivity of 100mV/div.
- Press the MAIN TB TIME/DIV keys to adjust to 100 µs/div.
- Verify that a square wave as shown in fig. 3.3 is displayed.
X-defection check:
- Press the CH2 ON key to turn CH2 on.
- Press the CH1 ON key to turn CH1 off.
- Press the DISPLAY menu key.
- Press the X-DEFL softkey in the DISPLAY menu.
- Select ’on’ and ’ch1’ as X-SOURCE in the X-DEFL menu.
- Verify that two points with a horizontal distance of approximately 6 divisions
are displayed.
3.6 Cursors
Preparation:
- 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.
- Use the softkeys to select ’on’ and volt cursors (=).
- Verify that a dashed and a dotted horizontal line (the volt cursors) appear on
the screen.
- Press the READOUT softkey and select ∆ V from the menu.
- Press softkey RETURN.
- Use the TRACK control to position the dashed line exactly on the bottom level
of the waveform.
- Use the ∆ control to position the dotted line exactly on the top level of the
waveform as shown in figure 3.10.
- Check for a volt cursor readout of approximately 600 mV in the top of the
display area.
3 - 12
-
BRIEF CHECKING PROCEDURE
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly). The
oscilloscope is now in digital mode.
Verify that the cursors are on the top and bottom 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.
CURSORS
on off
#
ch1
ch2
ch4
∆
ch1: ∆V=600mV
∆V
READOUT
TRACK
CH1 100mV
ST6656
9303
MTB= 0.1ms
100µs
Figure 3.10
CURSORS
on off
#
ch1
ch2
ch4
ch1: ∆T=500µs
∆T
READOUT
CH1 100mV
TRACK
Figure 3.11
MTB= 0.1ms
100µs
∆
ST6657
9303
BRIEF CHECKING PROCEDURE
3 - 13
TIME cursors check:
- Using a softkey, select time cursors (//).
- Press the READOUT softkey and select ∆T from the menu.
- Press the RETURN softkey.
- Turn the ∆ control so that the dotted line is approximately 2 divisions to the
right of the dashed line.
- Turn the TRACK control so that the dashed line coincides exactly with the first
negative edge of the signal.
- Turn the ∆ control so that the dotted line coincides exactly with the second
negative edge of the signal.
- Check 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 area.
3.7 TEXT OFF key:
-
Press the TEXT OFF key and verify that the CRT softkey text disappears.
Press the TEXT OFF key again and verify that only the signal, the cursors, and
the cursor readout value are displayed.
Press the TEXT OFF key to obtain full information again in the viewing area.
PERFORMANCE TEST
4-1
4 PERFORMANCE TEST
4.1 GENERAL INFORMATION
WARNING:
Before turning on the instrument, ensure that it has been
installed in accordance with the Installation Instructions,
outlined in Section 2 of the Operation Guide.
This procedure is intended to:
-
Check the instrument’s specification.
Be used for incoming inspection to determine the acceptability of newly
purchased instruments and/or recently recalibrated instruments.
Check the necessity of recalibration after the specified recalibration intervals.
NOTE: The procedure does not check every facet of the instrument’s calibration;
rather, it is concerned primarily with those parts of the instrument which
are essential to measurement accuracy and correct operation.
Removing the instrument covers is not necessary to perform this
procedure. All tests are made from 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.
IMPORTANT NOTES
-
-
The input voltage must be supplied to the CH1 input, unless otherwise stated.
Set the MAIN TB TIME/div key pair to a suitable position, unless otherwise
stated.
Tolerances given are for the instrument under test and do not include test
equipment error. Bear in mind that the test equipment and connecting cables
are properly terminated. In case of high-frequency signals, this termination
must be 50Ω. This is achieved with a 50Ω termination at the end of the cable.
Such termination is not necessary for the PM3394B (all channels), or CH1,
CH2 of the PM3390B; these oscilloscopes feature switchable internal 50Ω
input impedance.
4-2
-
-
-
-
PERFORMANCE TEST
In some tests vertical channels CH2, CH3, CH4 appear in parentheses after
CH1, e.g., CH1 (CH2, CH3, CH4). This indicates that the CH1 test should be
performed first, followed by the tests for CH2, CH3 and CH4.
Some of the tests are not necessary for all five oscilloscope types. An example
are the channels CH3, CH4 that are not present in PM3370B/80B/90B. This
is indicated as necessary. The test step may then be skipped.
Where required, tests are done in either analog or digital mode. Switching
between analog and digital mode is done by pressing the ANALOG key. When
you enter either analog or digital mode, the display indicates ’ANALOG
MODE’ or ’DIGITAL MODE’ briefly.
Test steps where the use of a 10:1 probe is mentioned, must be done with the
probe type such as delivered with 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:
Note:
The FLUKE 5500A has to be equipped with the SCOPE option and is
always used in SCOPE mode (SCOPE button active).
The digital multimeter and oscilloscope are not required for this test. they
are used for corrective maintenance.
Type of instrument
Required specification
Example of recommended
instrument
Function generator
Freq: 10 Hz...100 kHz
Sine /square-wave
Ampl: 1.8mV...55V (pp)
FLUKE 5500A mode:
wavegen
Constant amplitude
sine wave generator
Freq: 50kHz...300 MHz
Constant pp. amplitude
of 5mV to 5.5V.
FLUKE 5500A mode: levsine
Square-wave
calibration generator
For ampl. calibration:
Freq: 10 Hz...10kHz
Ampl: 1.8 mV...2.2V pp
For rise time
measurements:
Freq: 1kHz...1MHz
Ampl: 4.5mV...2.75V
FLUKE 5500A mode: volt
FLUKE 5500A mode:
edge
PERFORMANCE TEST
4-3
Time marker generator Repetition rate:
5 sec...2 nsec
FLUKE 5500A mode:
marker
Digital multimeter
Wide voltage and
current ranges.
Fluke 29 / 79 with AC, DC
and resistance ranges.
High voltage probe.
Required: 1% accuracy,
model 80K40
Variable voltage
transformer (VARIAC)
Well insulated output
voltage 90...264V
TV pattern generator
with video output
Oscilloscope
The bandwidth must
PM3394B
be the same or higher
than the bandwidth of the
instrument under test.
50Ω cables,
75Ω cables,
50Ω termination,
Tektronix and Fluke BNC PM9074
types for fast rise time
PM9075
square-wave, high
PM9585 (1W),
PM9581 (3W)
frequency sine wave and TEK 011-0055-01
other applications.
TEK 011-0059-02
TEK 011-0069-02
PM9067
PM9584/02
75Ω termination,
10:1 attenuator,
2:1 attenuator,
T-piece,
power splitter
Fluke PM5418
4-4
PERFORMANCE TEST
4.3 TEST PROCEDURE
4.3.1
Preliminary settings
Test equipment:
None
Settings/procedure and requirements:
1
-
2
3
-
4
5
6
-
7
8
9
-
If not present install 2 penlight (LR6) back up batteries in the holder at the
rear panel of the oscilloscope.
Turn on the oscilloscope under test.
Press the STATUS and TEXT OFF keys simultaneously. This assures that
the oscilloscope follows the default reaction when the green AUTOSET
key is pressed. You can verify that the oscilloscope 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.
Press the UTILITY menu key to display the UTILITY menu.
Press softkey AUTOSET to display the UTILITY AUTOSET menu.
Press the relevant softkey to put the oscilloscope in the ’userprog’ mode;
the text ’userprog’ must be intensified.
Press softkey VERT.
Select with softkey ’1MΩ / 50Ω / unaffect’ the ’unaffect’ position.
Check for the instrument settings in the lower part of the viewing area:
when not available press TEXT OFF until the maximum amount of
information is displayed.
PERFORMANCE TEST
4.3.2
4-5
Power supply
This test checks the proper operation of the power supply at all possible line
voltages.
Test equipment:
Variable voltage transformer (VARIAC)
Test set-up:
VARIAC
OSCILLOSCOPE UNDER TEST
OUTPUT
Probe
Adjust
TO MAINS
OSC POWER CORD
CH1
PROBE
CH2
CH3
CH4
MAT4127
9303
Settings/procedure:
1
-
2
3
-
4
-
Adjust the input line voltage to the oscilloscope (output from VARIAC) to a
desired value between 100 and 240V (rms), frequency 50...400 Hz.
Press POWER ON on the oscilloscope.
Apply the Probe Adjust signal from the front panel of the oscilloscope to
input CH1, e.g., by means of a 10:1 probe.
Press the green AUTOSET key.
Requirements:
1
-
2
-
3
-
4
-
Verify that the oscilloscope starts at any input voltage between 100 and
240V; in particular the line voltages 100, 120, 220 and 240V must be
checked.
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.
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly), and verify
that the instrument’s performance does not change in digital mode at the
indicated line voltages (100, 120, 220 and 240V). The displayed Probe
Adjust signal must be free from distortion.
Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to switch
to analog mode.
4-6
4.3.3
PERFORMANCE TEST
Auto set
This test checks the correct working of the AUTOSET function.
Test equipment:
Fluke 5500A mode levsine (Alternative: Constant amplitude sine wave generator
SG 503).
Test set-up:
Settings/procedure:
1
2
-
Apply a 10 MHz sine wave signal of 600 mV (pp into 50Ω) to input CH1;.
Press the green AUTOSET key. Use a 50Ω termination at the end of the
coax cable. For instruments with switchable 50Ω input impedance
(attainable via VERT MENU key) it is recommended to 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
-
2
-
3
-
4
-
Verify that the displayed waveform is stable and properly triggered.
Amplitude should be within the screen area. Horizontally some signal
periods should be displayed.
Repeat the same settings and procedure for CH2, CH3 and CH4. For
PM3370B/80B/90B: check CH2 and input EXT TRIG.
Press the ANALOG key to return to digital mode. The message ’DIGITAL
MODE’ appears briefly.
Repeat the AUTOSET check in the digital mode for CH2, CH3, and CH4.
For PM3370B/80B/90B: check CH2 and input EXT TRIG.
PERFORMANCE TEST
4.3.4
4-7
Orthogonality
This test checks the angle between the horizontal and vertical deflection plates
(orthogonality).
Test equipment:
Fluke 5500A mode wavegen, wave sine (Alternative: function generator PM5136).
Test set up:
Settings/procedure:
1
-
2
3
-
4
-
5
-
6
7
8
9
-
Press the CAL key for a few seconds to start the autocal procedure. This
takes approximately 4 minutes. When ready, the oscilloscope is fine tuned
to optimal accuracy.
Apply a 50 Hz sine wave signal of 8V (pp) to input CH1;
Press the AUTOSET key and adjust the input signal to a trace- height of
8 div (CH1 in 1V/div).
Activate the GND function and verify that the straight line is exactly parallel
to the horizontal graticule lines. If not, readjust the TRACE ROTATION.
Switch the GND function off and verify that a signal of 8 divisions is
displayed.
Press the DISPLAY menu key.
Press the X-DEFL softkey.
Select ’on’ and ’ch2’ from the X-DEFL menu.
Use the X POS control to move the vertical line to the center of the screen.
4-8
PERFORMANCE TEST
Requirements:
1
-
2
-
Verify that the vertical line is parallel to the vertical graticule line in the
center of the screen.
Verify that the angle with respect to the horizontal graticule lines is 90° ± 0.5°
as indicated in the figure.
≤ 0.07div
≤ 0.07div
OR
MAT3913
Figure 4.1
4.3.5
Orthogonality
Trace distortion
This test checks the distortion of a horizontal line in the central 6 x 8 divisions of
the screen.
Test equipment:
None
Settings/procedure:
1
2
-
Press the AUTOSET key with no input signal applied to the scope.
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 equipment:
Fluke 5500A mode: wavegen, wave sine (Alternative: function generator PM5136).
PERFORMANCE TEST
4-9
Test set-up:
Settings/procedure:
1
2
-
3
-
6
7
8
9
-
Apply a 50 Hz sine wave signal of 8V (pp) to input CH1;
Press the AUTOSET key and adjust the input signal to an amplitude of
8 divisions (CH1 in 1V/div).
Using the CH1 POS control, adjust the display around the center of the
screen.
Press the DISPLAY menu key.
Press the X-DEFL softkey.
Select ’on’ and ’ch2’ from the X-DEFL menu.
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 calibrated signal. PM3370B/80B/90B: the channels CH1,
CH2 and TRIG VIEW via input EXT TRIG are checked.
Test equipment:
Fluke 5500A mode: volt (Alternative: Square-wave calibration generator PG 506).
4 - 10
PERFORMANCE TEST
Test set up:
Settings/procedure:
1
-
2
3
-
4
5
6
7
8
-
Note:
Apply a 1 kHz square-wave signal of 30 mV to input CH1. Set the generator
in ’volt’ mode. The generator must not be terminated with 50Ω (the text ’LZ’
must not be visible in the lower part of the viewing area).
Press the green AUTOSET key.
Set CH1 to 5 mV/div and to DC input coupling. The waveform must be in
the vertical middle of the screen.
Press the ACQUIRE menu key.
Select BW LIMIT ’on’ from the VERT MENU key.
Press the TRIGGER menu key.
Select noise ’on’ and ’hf-rej’ from the TRIGGER MAIN TB menu.
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.
Only the input sensitivities essential for input accuracy are checked.
Requirements:
table I.
Input voltage
(pp)
Setting
Requirements
analog mode
Requirements
digital mode
30 mV
60 mV
1.2V
6V
5 mV
10 mV
0.2V
1V
5.92...6.08 div (±1.3%)
5.92...6.08 div (±1.3%)
5.92...6.08 div (±1.3%)
5.92...6.08 div (±1.3%)
5.88...6.12 div (±2%)
5.88...6.12 div (±2%)
5.88...6.12 div (±2%)
5.88...6.12 div (±2%)
PERFORMANCE TEST
4 - 11
Repeat the settings/procedure in table I for CH2, CH3 and CH4. Use table II for
PM3370B/80B/90B to test TRIG VIEW via input EXT TRIG. Select AC input
coupling to center the trace on the screen.
table II.
Input voltage
(pp)
Setting
Requirements
analog mode
Requirements
digital mode
0.6V
6V
0.1V
1V
5.82...6.18 div (±3%)
5.82...6.18 div (±3%)
5.82...6.18 (±3%)
5.82...6.18 (±3%)
-
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly), and repeat the
tests in this chapter for the digital mode.
Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return to
analog mode.
4.3.7
Vertical deflection; variable gain control range
(continuation of 4.3.6)
This test checks the vertical VARiable gain control.
Settings/procedure:
1
2
-
3
-
4
-
Apply a square-wave signal of 0.2V to input CH1 and press AUTOSET.
Set CH1 to 50 mV/div and input coupling to DC. Using the CH1 POS
control, center the waveform in the screen.
Select the VARiable mode by simultaneously pressing both AMPL keys.
The readout changes into 50.0 mV/div.
Press the mV key to adjust an input sensitivity of 40.0 mV/div.
Requirements:
1
-
2
-
4.3.8
Verify that the displayed amplitude is between 4.86 and 5.14 divisions
(+/- 2.8%).
Repeat the settings and procedure for CH2. For the PM3394B and
PM3384B repeat the same steps for CH3 and CH4.
Vertical deflection; input coupling (continuation of 4.3.7)
This test verifies the operation of the AC input coupling. Also, the operation of the
ground (GND) function is checked.
4 - 12
PERFORMANCE TEST
Settings/procedure:
1
-
2
-
Switch the CH1 VARiable mode off by simultaneously pressing both
AMPL/VAR keys. The readout changes to 50 mV.
CH1 sensitivity is 50 mV/div; the vertical deflection is now 4 divisions.
Requirements:
1
-
2
-
3
-
Activate the CH1 GND function and verify that a horizontal line is
displayed.
Select the AC input coupling and verify that a 4 divisions square-wave
signal is displayed. Center this signal in the middle of the screen.
Select the DC input coupling and verify that the 4 divisions square-wave
signal moves up. This shift is caused by the signal’s positive dc
component: this component is not blocked in DC coupled mode.
Repeat the settings and procedure for CH2, CH3, and CH4. PM3370B/80B/90B:
check CH2 and TRIG VIEW via EXT TRIG 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
2
3
4
5
6
-
7
8
9
-
Change the generator output voltage to 0.1V.
Apply this voltage to CH1.
Switch CH1 to ON, and switch the other channels off.
Select DC coupled input and 20 mV/division for CH1.
Select CH1 as trigger source (TRIG 1).
Use the POS control to center the 5 division square wave on the dotted
horizontal lines of the graticule.
Press the CURSORS menu key.
Select ’on’ and volt cursors (=) from in the CURSORS menu.
Select ∆ V from the READOUT menu.
Requirements:
1
-
2
-
3
-
Use the TRACK and ∆ controls to position both cursor lines exactly on top
and bottom of the signal. Check for a cursor readout between 98.4 and
101.6 mV.
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly) and repeat
the check in this chapter for the digital mode.
Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return
to analog mode.
PERFORMANCE TEST
4.3.10
4 - 13
Vertical deflection; high-frequency response
This test verifies the upper transition point of the vertical bandwidth.
Test equipment:
Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generator
SG 503).
Test set-up:
Settings/procedure:
1
-
2
-
3
4
5
-
6
8
9
-
10 -
Apply a 50 kHz sine wave signal of 600 mV (pp into 50Ω) to input CH1,
and press the AUTOSET key.
Use an external 50Ω termination. Use the internal termination of the
oscilloscope, when available (if active, the text ’LZ’ is visible in the lower
part of the viewing area). Internal 50Ω termination is attainable via the
VERT MENU key (PM3390B/94B).
Set CH1 to 0.1V/div.
Adjust the input signal to an amplitude of exactly 6 divisions.
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.
Switch the frequency of the sine wave signal back to 50 kHz.
Press the ACQUIRE menu key.
Select BW LIMIT ’on’ via the VERT MENU key.
Slowly increase the frequency to 20 MHz and verify that the vertical
deflection has decreased to 4.2 div approximately at 20 MHz.
Switch the bandwidth limiter to ’off’.
4 - 14
PERFORMANCE TEST
Requirements:
-
The vertical deflection must be 4.2 divisions or more. For the bandwidth limiter
the requirement is 4.2 div approximately at 20 MHz.
Repeat the above settings and procedure for CH2, CH3 and CH4. PM3370B/80B/
90B: check CH2 and TRIG VIEW via EXT TRIG input. Oscilloscope in 1V/div and
generator voltage 5 Vpp into 50Ω. Termination resistor directly at 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 response
This test verifies the lower transition point of the vertical bandwidth.
Test equipment:
Fluke 5500A mode: wavegen, wave sine (Alternative: function generator PM5136).
Test set up:
PERFORMANCE TEST
4 - 15
Settings/procedure:
1
-
2
3
4
-
Apply a 5 kHz sine wave signal of 600 mV (pp into 50Ω) to input CH1, and
press the AUTOSET key.
Set CH1 to 0.1V/div.
Adjust the input signal to an amplitude of exactly 6 divisions.
Lower the frequency to 10 Hz and verify that the displayed amplitude does
not drop below 4.2 divisions.
Requirements:
-
The vertical deflection must be 4.2 divisions 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 an amplitude equivalent
to 24 divisions must be displayed with no distortion.
Test equipment:
Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generator
SG 503).
Test set up:
4 - 16
PERFORMANCE TEST
Settings/procedure:
1
-
2
3
4
-
Apply a 50 MHz (PM3390B/94B), 25 MHz (PM3380B/84B) or 15 MHz
(PM3370B) sine wave signal of 2.4 V(pp into 50Ω) to input CH1 and press
the AUTOSET key.
Use a 50Ω termination. Use the internal termination when avaialble.
Set CH1 to 0.1V/div.
Using the CH1 POS control, shift the sine wave vertically over the screen.
Requirements:
-
Verify that top and bottom of the sine-wave signal of 24 divisions in amplitude
can be displayed with no distortion.
Repeat the above settings and procedure for CH2, CH3, and CH4. PM3370B/
80B/90B: check CH2.
4.3.13
Vertical deflection; dynamic range at 60/100/200 MHz
(continuation of 4.3.12)
In this test, the dynamic range of the amplifier is checked at a high frequency.
Settings/procedure:
1
-
2
3
4
-
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.
Press the AUTOSET key, and set CH1 to 0.1V/div.
Use a 50Ω termination. Use the internal termination when available.
Set the amplitude to exactly 8 divisions.
Requirements:
-
Verify that the sine wave of 8 divisions in amplitude is displayed with no distortion.
Repeat the above settings and procedure for CH2, CH3, and CH4.
PM3370B/80B/90B: check CH2.
4.3.14
Vertical deflection; position range
The range of the vertical shift is checked with a sine-wave signal of 8 divisions in
amplitude.
Test equipment
Fluke 5500A mode: wavegen, wave sine (Alternative function generator PM5136).
PERFORMANCE TEST
4 - 17
Test set up:
Settings/procedure:
1
-
2
3
-
Apply a 1 kHz sine wave signal with an amplitude of 0.8 V (pp) to input
CH1.
Press the AUTOSET key and set CH1 to 0.1V/div.
Adjust the generator so that the displayed amplitude is exactly 8 divisions.
Requirements
-
Turn the CH1 POS control fully clockwise and 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 high frequency.
Test equipment:
Fluke 5500A mode: levsine (Alternative constant amplitude sine wave generator
SG 503).
4 - 18
PERFORMANCE TEST
Test set up:
Settings/procedure:
1
-
2
3
4
5
6
7
-
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.
Press the AUTOSET key.
Use a 50Ω termination. Use the internal termination when available.
Switch all channels ON. PM3370B/80B/90B: switch CH2 on.
Set all channels to 0.1 V/div.
Adjust the generator to a signal amplitude of 8 div.
Activate the GND function of CH2, CH3, and CH4. PM3370B/80B/90B:
activate 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 procedures for PM3370B/80B/90B:
- Input signal applied to CH2. CH1 input GND.
For all models:
- Press the ANALOG key (’DIGITAL MODE’ is displayed briefly) and repeat the
tests in this chapter for the digital mode.
- Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return to
analog mode.
PERFORMANCE TEST
4.3.16
4 - 19
Vertical deflection; common mode rejection ratio at 1 MHz
The common mode rejection ratio (CMRR) is a measure of susceptibility to
common mode signals. This susceptibility is verified in this test.
Test equipment:
Fluke 5500A mode: levsine (Alternative: HF constant amplitude sine wave
generator SG 503).
Power splitter
Test set up:
Settings/procedure:
1
-
2
3
-
4
-
5
6
7
8
-
9
-
Use a power splitter and two cables of equal length to CH1 and CH2.
Apply a 2 MHz sine-wave signal of 1.6 V(pp into 50Ω) to inputs CH1 and CH2.
Press the AUTOSET key.
Use 50Ω terminations. Use the internal terminations when available (via
VERT MENU key).
Set CH1 and CH2 to 0.1V/div and adjust the generator voltage for a
deflection of 8 divisions.
Set CH1 and CH2 to DC input coupling.
Press the CH1+CH2 key to activate the ‘added’ mode.
Press the INV key of CH2; the result is the display of CH1-CH2.
Press the ON keys of CH1 and CH2; this switches CH1 and CH2 off and
only the differential signal (CH1 CH2) is now visible.
Readjust the VAR function of CH1 or CH2 for minimum amplitude.
Requirements
-
Verify that the trace-height of the CH1-CH2 differential signal is less than 0.08
divisions.
Repeat the above settings and procedure for CH3 and CH4 (for PM3384B and
PM3394B only).
4 - 20
4.3.17
PERFORMANCE TEST
Vertical deflection; common mode rejection ratio at 50 MHz
(continuation of 4.3.16)
The common mode rejection ratio (CMRR) indicates the susceptibility to common
mode signals at higher frequencies. The susceptibility is verified in this test.
Settings/procedure:
1
-
2
3
4
-
5
6
7
-
8
-
9
-
Use a power splitter and two cables of equal length to CH1 and CH2. Apply
a sine-wave signal of 50 MHz with an amplitude of 0.6 V(pp into 50Ω) to
inputs CH1 and CH2.
Press the AUTOSET key.
Use a 50Ω termination. Use the internal termination when available.
Set CH1 and CH2 to 0.1 V/div and adjust the generator voltage for a
deflection of 6 divisions.
Set CH1 and CH2 to DC input coupling.
Press the CH1+CH2 key; to activate the added mode.
Press the INV key of CH2; the result is the display of the differential signal
of CH1-CH2.
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.
Readjust the VAR function of CH1 or CH2 for minimum amplitude.
Requirements:
-
Verify that the amplitude of the CH1-CH2 differential signal is less than 0.24
divisions.
-
Repeat the above settings and procedure for CH3 and CH4 (for PM3384B and
PM3394B only).
4.3.18
Vertical deflection; LF linearity
The linearity of the vertical amplifier is checked by moving a signal with a fixed
amplitude vertically over the entire screen area.
Test equipment
Fluke 5500A mode: wavegen, wagve square (Alternative: function generator
PM5136).
PERFORMANCE TEST
4 - 21
Test set up:
Settings/procedure
1
2
3
4
-
5
-
Apply a 50 kHz square-wave signal of 200 mV(pp into 50Ω)to input CH1.
Press the AUTOSET key and set CH1 to 0.1V/div.
Move the square-wave signal to the vertical center of the screen.
Adjust the generator output so that the displayed amplitude is exactly 2
divisions.
Use the CH1 POS control to shift the signal upwards and downwards
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 the digital mode
is that the sq. wave amplitude in the central 6 div. screen area is between 1.94
... 2.06 divisions (+ or 3%).
Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return to
analog mode.
4 - 22
4.3.19
PERFORMANCE TEST
Vertical deflection; visual signal delay
Many applications require that the leading edge of a fast pulse triggering the
oscilloscope be made visible. A fixed amount of signal delay is introduced in the
vertical channels of this instrument to allow the timebase to start before the
triggering leading edge causes vertical deflection to occur.
This delay is verified in the following test.
Test equipment
Fluke 5500A mode: edge (Alternative: Square-wave calibration generator PG 506).
Test set-up:
Settings/procedure:
1
-
2
3
-
4
5
-
6
7
8
-
9
-
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.
Press the AUTOSET button and set CH1 to 0.1V/div.
Use a 50Ω termination. Use the internal termination when provided (via
VERT MENU key).
Set the MAIN TB TIME/DIV to 50.0 ns/div.
Press the MAGNIFY key and turn the X POS control to display the leading
edge.
Turn the TRACE INTENSITY control clockwise for maximum intensity.
Press the TRIGGER menu key.
Select level pp ’off’ and ’dc’ trigger coupling from the TRIGGER MAIN TB
menu.
Adjust TRIGGER LEVEL for a triggered display and maximum visible
signal delay.
PERFORMANCE TEST
4 - 23
Requirements
-
Verify that the visible signal delay is at least 15 ns (3 divisions).
MTB 5ns *10
visual signal delay 3div
Figure 4.2
4.3.20
MAT4167
Visual signal delay
Vertical deflection; base line instability
In the following test, several adjustments of balance, offset and jump, are
checked.
Test equipment
None
Settings/procedure and requirements:
1
2
-
3
-
4
-
5
-
6
7
-
8
-
Press the AUTOSET key (no input signal) and set CH1 to 5V/div.
Use the CH1 POS control to position the trace in the vertical middle of the
screen.
Press both CH1 AMPL keys simultaneously to select the VARiable mode.
The readout changes to 5.00V. The input sensitivity can be adjusted now
in very fine steps between 2 mV and 12.5V/div.
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.
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.
Press the ON keys of CH2 and CH1; CH2 is now on and CH1 is off.
Using the CH2 POS control, position the trace in the vertical middle of the
screen.
Press both CH2 AMPL keys simultaneously to select the VARiable mode.
The readout changes to 5.00V. The input sensitivity can be adjusted now
in very fine steps between 2 mV and 12.5V/div.
4 - 24
9
-
10 11 -
PERFORMANCE TEST
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.
Press the ’mV’ key and verify that the base line jump does not 0.2 divisions
between 12.5V/div to 5 mV/div.
Press the INV key repeatedly and verify that the base line jump is not more
than 0.2 divisions.
For the PM3394B and PM3384B repeat the above procedure for CH3 and CH4.
The CH3 settings are equal to those of CH1; the CH4 settings are equal to CH2.
For PM3390B, 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
-
2
3
-
4
-
Apply a square-wave signal with a fast rise time of less than 1 ns, and an
amplitude of 1V (into 50Ω), with a frequency of 1 MHz, to inputs CH1 and
CH2.
Use a power splitter and two cables of equal length to CH1 and CH2.
Press the AUTOSET key.
Use 50Ω terminations. Use the internal terminations when available on
both channels (via VERT MENU key).
Set CH1 and CH2 to 0.1V/div and input coupling to DC.
PERFORMANCE TEST
5
-
6
7
8
9
10
11
-
12 -
4 - 25
Press the MAGNIFY keys and set the MAIN TB TIME/DIV to 2.00 ns/div
(PM3390B/94B) or to 5.00 ns/div (PM3370B/80B/84B).
Press the TRIGGER menu key.
Select level-pp ’off’ and ’dc’ trigger coupling from the related menu.
Press the TB MODE menu key.
Select ’trig’ from the related menu.
Adjust TRIGGER LEVEL for a triggered display of the leading edge.
Using the X POS control, position the leading edges of the signals in the
horizontal center of the screen.
Using both CH1 and CH2 POS controls, adjust the vertical position of each
trace between the dotted 0% and 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.
DELAY BETWEEN
CHANNELS
MAT4168
Figure 4.3
Delay difference ≤ 0.13 div in PM3390B/94B or ≤ 0.05 div 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 chapter for the digital mode. In digital mode, it is not necessary to
activate the MAGNIFY function since the timebase ranges up to 2.00 ns/
division (PM3390B/94B) or 5.00 ns/division (PM3370B/80B/84B).
Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return to
analog mode.
4 - 26
4.3.22
PERFORMANCE TEST
Horizontal deflection; display modes and trace separation
The correct working of main timebase (MAIN TB), delayed timebase (DELAYED
TIME BASE) and the trace separation is checked.
Test equipment:
Fluke 5500A mode: wavegen, wave sine (Alternative: function generator, PM5136).
Test set-up:
Settings/procedure and requirements:
1
2
3
4
5
6
7
8
9
-
10 -
4.3.23
Apply a 2 kHz sine-wave signal of 400 mV(pp into 50Ω) to input CH1.
Press the AUTOSET key and set CH1 to 0.1V/div.
Adjust the generator signal to a trace height of 4 divisions.
Set MAIN TB to 500 µs.
Press the DTB menu key.
Set DEL’D TB to ’on’ in the DELAYED TIMEBASE menu.
Set MAIN TB to ’on’ in the DELAYED TIMEBASE menu.
Set the DELAYED TIMEBASE to 50.0 µs.
Turn the DELAY control (in the DELAYED TIMEBASE section), and verify
that the intensified part can be shifted horizontally along the MAIN TB
display.
Operate the TRACK control and check that the DEL’D TB and MAIN TB
display can be shifted so that they do not cover each other.
Horizontal deflection; X deflection
The correct working of the X Y mode (X-DEFL ’on’) is tested.
Test equipment:
Fluke 5500A mode: wavegen, wave sine (Alternative: function generator, PM5136)
PERFORMANCE TEST
4 - 27
Test set-up:
Settings/procedure:
1
2
3
4
5
6
7
-
Apply a 2 kHz sine-wave signal of 800 mV (pp) to input CH1.
Press the AUTOSET key and set CH1 to 0.1V/div.
Adjust the generator signal to a trace height of 8 divisions.
Press the DISPLAY menu key.
Press the X-DEFL softkey in the DISPLAY menu.
Select ’on’ and ’ch1’ as X-SOURCE in the X-DEFL menu.
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
4 - 28
4.3.24
PERFORMANCE TEST
Horizontal deflection; MAIN TB deflection coefficients
The deflection coefficients of the main timebase generator (MAIN TB) are verified
by means of a calibration signal.
Test equipment:
Fluke 5500A mode: marker (Alternative: time marker generator TG 501).
Test set-up:
Settings/procedure:
1
2
3
-
4
5
6
7
8
9
-
Apply a 50.0 ns time marker signal to input CH1.
Press the AUTOSET key.
Use a 50Ω termination. For instruments with switchable 50Ω input
impedance it is recommended to make use of this feature (via
VERT MENU key).
Press the TRIGGER menu key.
Select level-pp ’off’ and ’dc’ from the TRIGGER MAIN TB menu.
Press the TB MODE menu key.
Select ’trig’ from the TB MODE menu.
Adjust the TRIGGER LEVEL control for a correctly triggered display.
Verify the deflection coefficients of MAIN TB with MAGNIFY off ( 1) and
*
MAGNIFY on (*10) according to the requirements in the tables. Use the
deflection error facility of the time marker generator.
Note:
- Error limits must be measured between the 2nd and the 10th graticule line
(there are 11 graticule lines). These are the central 8 divisions.
- With MAGNIFY on (*10), the central 10 divisions of the expanded 100
divisions of MAIN TB are measured.
PERFORMANCE TEST
-
4 - 29
Only the timebase positions essential for instrument accuracy are checked.
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly) to perform the
tests for the digital mode. Press the TEXT OFF key for full visibility of the time
marker pulses in the central 8 divisions.
Press the ANALOG key (’ANALOG MODE’is displayed briefly) to return to
analog mode.
5equirements for analog mode MAGNIFY off (*1):
MAIN TB setting
Marker pulse
Max. error
20.0 ns (PM3390B/94B)
100 ns
500 ns
1.00 µs
5.00 µs
20.0 µs
500 µs
1.00 ms
10.0 ms
20 ns
0.1 µs
0.5 µs
1 µs
5 µs
20 µs
0.5 ms
1 ms
10 ms
1.8%
1.8%
1.8%
1.8%
1.8%
1.8%
1.8%
1.8%
1.8%
Requirements for analog mode MAGNIFY on (*10):
MAIN TB setting
Marker pulse
Max. error
2.00 ns (PM3390B/94B)
5.00 ns
10.0 ns
100 ns
2 ns
5 ns
10 ns
0.1 µs
3.3%
3.3%
2.3%
2.3%
Requirements for digital mode:
MAIN TB settingMarker pulseMax. error
2.00 ns (PM3390B/94B)
5.00 ns
250 ns
500 ns
20.0 ms
1.00 s
2 ns
5 ns
0.5 µs
0.5 µs
20 ms
1s
1.8%
1.8%
1.3%
1.3%
1.3%
1.3%
Check for an undistorted display of the time marker pulses. Timing accuracy
should not show a noticeable error. In the MAIN TB setting 250 ns/division, the
interval between successive time marker pulses should be 2 div.‘
4 - 30
4.3.25
PERFORMANCE TEST
Horizontal deflection; VARiable mode accuracy MAIN TB.
The horizontal MAIN TB deflection coefficients can be varied in steps such as
done in 4.3.24. A range of much finer steps can also be selected. Here, the
accuracy of this range is checked.
Test equipment:
Fluke 5500A mode: marker (Alternative time marker generator TG 501).
Test set-up:
Settings/procedure:
1
2
3
-
4
5
-
6
7
8
-
9
-
Apply a 5 us time marker signal to input CH1.
Press the AUTOSET key.
Use a 50Ω termination. For instruments with switchable 50Ω input
impedance it is recommended to make use of this feature.
Press the TRIGGER menu key.
Select level-pp ’off’ and trigger coupling ’dc’ from the TRIGGER MAIN TB
menu.
Adjust the TRIGGER LEVEL control for a correctly triggered display.
Set the MAIN TB TIME/DIV to 5.00 us.
Select the MTB VARiable mode by pressing both MAIN TB TIME/DIV keys
at a time: the message; ’VARIABLE TIMEBASE’ is displayed briefly.
Press the ’ns’ key and adjust the readout to 2.50 us.
Requirements:
-
Verify that the horizontal distance between the time markers equals 2 divisions.
Use the X POS control to align the marker pulses with the graticule.
Now check (across the central 8 divisions) if the timebase accuracy is ±2.8%:
make use of the deflection error facility of the time marker generator to check this.
PERFORMANCE TEST
4.3.26
4 - 31
Time cursor accuracy (continuation of 4.3.25)
This test verifies the accuracy of the time cursors.
Settings/procedure:
1
-
2
3
4
5
6
-
Switch the MAIN TB VARiable mode off by pressing both MAIN TB TIME/
DIV keys at a time. The message ’1-2-5 STEPS’.
Select 5.00 µs/division for the MAIN TB.
Switch off the deflection error facility of the time marker generator.
Press the CURSORS menu key.
Select ’on’ and time cursors (//) from the CURSORS menu.
Select ∆ T in the READOUT menu.
Requirements:
-
Position one cursor line exactly on the 2nd 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 the ANALOG key (’ANALOG MODE’ is displayed briefly) to return to
analog mode.
4.3.27
Horizontal deflection; DELAYED TIME BASE deflection coefficients
The deflection coefficients of the delayed timebase generator (DEL’D TB) are
verified by means of a calibration signal.
Test equipment:
Fluke 5500A mode: marker (Alternative: time marker generator TG 501).
4 - 32
PERFORMANCE TEST
Test set-up:
Settings/procedure:
1
2
3
-
4
5
-
6
7
8
9
-
10 11 12 13 14 -
Apply a 0.5 ms time marker signal to input CH1.
Press the AUTOSET key.
Use a 50Ω termination. For instruments with switchable 50Ω input
impedance it is recommended to make use of this feature (via
VERT MENU key).
Press the TRIGGER menu key.
Select level-pp ’off’ and ’dc’ trigger coupling from the TRIGGER MAIN TB
menu.
Press the TB MODE menu key and select ’trig’ from the related menu.
Adjust TRIGGER LEVEL for a correctly triggered display.
Set the trace height to about 4 divisions.
Press the DTB menu key and select DEL’D TB ’on’ and MAIN TB ’on’ from
the related menu .
Set MAIN TB to 1.00 ms and DELAYED TIME BASE to 5.00 µs.
Use the DELAY control (in the DELAYED TIMEBASE SECTION to set the
time delay to about 0 seconds.
Adjust the vertical position of the MAIN TB display with the CH1 POS
control in the top half of the viewing area.
Adjust the vertical position of the DELAYED TIMEBASE display with the
TRACK control.
Verify the DELAYED TIMEBASE deflection coefficients with MAGNIFY off
(*1) and MAGNIFY on (*10) according to the requirements in the tables.
Use the deflection error facility of the time marker generator.
Note:
- Error limits must be measured between the 2nd and the 10th graticule line
(there are 11 graticule lines). These are the central 8 divisions.
- With MAGNIFY on (*10), the central 10 divisions of the expanded 100
divisions of DEL’D TB are measured.
PERFORMANCE TEST
-
4 - 33
Only the timebase positions that are essential for instrument accuracy are
checked.
DEL’D TB TIME/DIV is electrically coupled to MAIN TB TIME/DIV; to check the
settings in the table press only the MAIN TB TIME/DIV VAR keys.
5equirements for analog mode MAGNIFY off ( 1):
*
DEL’D TB setting
MAIN TB setting Marker pulse
Max. error
5.00 µs
20.0 µs
5.00 µs
1.00 µs
500 ns
100 ns
50.0 ns
20.0 ns (PM3390B/94B)
5.00 µs
20.0 µs
5.00 µs
1.00 µs
500 ns
100 ns
50.0 ns
20.0 ns
1.8%
1.8%
1.8%
1.8%
1.8%
1.8%
1.8%
1.8%
0.5 ms
20 µs
5 µs
1 µs
0.5 µs
0.1 µs
50 ns
20 ns
Requirements for analog mode MAGNIFY on ( 10):
*
DEL’D TB setting
MAIN TB setting Marker pulse
100 ns
10.0 ns
5.00 ns
2.00 ns (PM3390B/94B)
100 ns
10.0 ns
5.00 ns
2.00 ns
4.3.28
0.1 µs
10 ns
5 ns
2 ns
Max. error
2.3%
2.3%
3.3%
3.3%
Horizontal deflection; delay time multiplier
In this test the minimum and maximum delay time is checked.
Test equipment:
None
Settings/procedure and requirements:
1
2
-
3
4
5
6
-
7
-
Press the AUTOSET key.
Press the DTB menu key and select DEL’D TB ’on’ and MAIN TB ’on’ from
the appropriate menu .
Set MAIN TB to 500 ns.
Set DEL’D TB to 50.0 ns.
Separate the MAIN TB and DEL’D TB traces with the TRACK control.
Adjust the delay time to 500.0 ns using of the DELAY control (in the
DELAYED TIMEBASE section).
Adjust the start of the MAIN TB display exactly on the first graticule line by
using the X POS control (at maximum TRACE INTENSITY).
4 - 34
8
-
9
-
10 -
4.3.29
PERFORMANCE TEST
Verify that the difference between the start of MAIN TB and the start of the
intensified part is between 0.9 to 1.1 divisions.
Adjust the delay time to 5.00 µs with the DELAY control (in the DELAYED
TIMEBASE section).
Verify that the difference between the start of MAIN TB and the start of the
intensified part is between 9.9 and 10.1 divisions.
Horizontal deflection; delayed timebase jitter
There is a certain instability in the starting point, the so called jitter, of the
DEL’D TB. The maximum allowed jitter is checked in this test.
Test equipment:
Fluke 5500A mode: levsine (Alternative: function generator PM5136).
Test set-up:
Settings/procedure:
1
2
3
-
4
-
5
6
7
-
8
-
Apply a 1 MHz sine-wave signal of 120 mV(pp into 50Ω) to input CH1.
Press the AUTOSET key and set for a trace-height of 6 divisions.
Use a 50Ω termination. For instruments with switchable 50Ω input
impedance it is recommended to make use of this feature (via
VERT MENU key).
Press the DTB menu key and select DEL’D TB ’on’ and MAIN TB ’on’ from
the appropriate menu.
Set MAIN TB to 500 µs.
Set DEL’D TB to 500 ns.
Adjust the delay time to 0s using the DELAY control (in the DELAYED
TIMEBASE section).
Switch the MAIN TB display to ’off’ in the DELAYED TIMEBASE menu;
only the DEL’D TB is displayed now.
PERFORMANCE TEST
4 - 35
Requirements:
-
Verify that the jitter of the DEL’D TB is not more than 0.4 divisions (1 part per
25000).
4.3.30
Horizontal deflection; X deflection coefficient via CH1
The amplification of the horizontal amplifier via the vertical input amplifier is
checked.
Test equipment:
Fluke 5500A mode: volt (Alternative: Square-wave calibration generator PG 506).
Test set-up:
Settings/procedure:
1
-
2
3
4
5
6
7
-
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).
Press the AUTOSET key.
Set CH1 to 20 mV and DC coupled input.
Press the DISPLAY menu key.
Press X-DEFL softkey.
Select ’on’ and ’ch1’ from the X-DEFL menu.
Press the CH2 ON key and then the CH1 ON key; the result is that CH2 is
on and CH1 is off.
Requirements:
-
Verify that two dots with a horizontal distance of 4.7 ... 5.3 divisions are
displayed.
4 - 36
4.3.31
PERFORMANCE TEST
Horizontal deflection; X deflection coefficient via ’line’
The amplification of the horizontal amplifier via the line trigger signal is checked.
Do this test only when 220V line voltage is available.
Test equipment:
None
Settings/procedure:
1
2
3
4
-
Press the AUTOSET key.
Press the DISPLAY menu key.
Press X-DEFL softkey.
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 (Alternative: constant amplitude sine wave generator
SG 503).
Test set-up:
PERFORMANCE TEST
4 - 37
Settings/procedure:
1
2
3
-
4
5
6
-
7
8
-
Apply a 50 kHz sine-wave signal of 30 mV(pp into 50Ω) to input CH1.
Press the AUTOSET key and set CH1 to 5 mV.
Use a 50Ω termination. For instruments with switchable 50Ω input
impedance it is recommended to make use of this feature (’LZ’ must be
visible in lower part of viewing area).
Press the DISPLAY menu key and then press the X-DEFL softkey.
Select ’on’ and ’ch1’ from the X-DEFL menu.
Press the CH2 ON key and then the CH1 ON key: the result is that CH2 is
on and CH1 off.
Adjust the input voltage for exactly 6 divisions horizontal deflection.
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 will be a certain phase shift between the horizontal and vertical amplifier.
The value of this shift is measured here.
Test equipment:
Fluke 5500A mode: wavegen, wave sine (Alternative: function generator, PM 5136).
Test set-up:
4 - 38
PERFORMANCE TEST
Settings/procedure:
1
2
3
4
5
6
-
Apply a 2 kHz sine-wave signal of 1.2 V(pp into 50Ω) to CH1.
Press the AUTOSET key and set CH1 to 0.2V/div.
Adjust the generator to a trace height of exactly 6 divisions.
Press the DISPLAY menu key and then press the X-DEFL softkey.
Select ’on’ and ’ch1’ from the X-DEFL menu.
Increase the input frequency to 100 kHz.
Requirements:
Verify that the phase shift is less than 3°, ≤0.32 div, see figure).
6div
≤0.32div
-
MAT3842
Figure 4.5
4.3.34
Phase shift between horizontal and vertical channel
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 equipment:
Fluke 5500A mode: levsine
(Alternative: constant amplitude sine wave generators SG 503 + SG 504).
PERFORMANCE TEST
4 - 39
Test set-up:
Settings/procedure and requirements:
1
-
2
3
-
4
-
5
6
-
7
8
9
10
11
-
12
13
14
15
16
-
17 18 -
Apply a 100 MHz sine-wave signal of 1 V(pp into 50Ω) from the SG 503 to
input CH1.
Press the AUTOSET key and set CH1 to 0.5V/div.
Use a 50Ω termination. For instruments with switchable 50Ω input
impedance it is recommended to make use of this feature (via
VERT MENU key).
Set the input coupling of CH1 to DC and POSition the signal in the vertical
center of screen.
Select ’trig’ from in the menu under the TB MODE mode key.
Press the TRIGGER menu key and select level-pp ’off’ and ’dc’ trigger
coupling from the TRIGGER MAIN TB menu
Adjust TRIGGER LEVEL for a correctly triggered display.
Decrease the amplitude of the input signal.
Verify that the signal is well-triggered at amplitudes of 0.6 divisions and more.
Decrease the input frequency to 50 kHz.
Verify that the signal stays well-triggered at amplitudes of 0.6 divisions and
more.
Increase the input frequency to 200 MHz.
Increase the input voltage to 1.2 division.
Turn TRIGGER LEVEL.
Verify that the signal is well-triggered at amplitudes of 1 division and more.
Apply a 300 MHz sine-wave signal of 2V (pp into 50Ω) from the SG 504 to
input CH1.
Adjust the input voltage to 2 divisions. Signal must be in vertical center of
screen.
Verify that the signal is well-triggered at amplitudes of 2 divisions and
more; adjust TRIGGER LEVEL when necessary.
4 - 40
PERFORMANCE TEST
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 MODE’ is displayed briefly), then repeat the
tests in this chapter for the digital mode.
Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return to analog
mode.
4.3.35
MAIN TB triggering PM3370B/3380B/3384B; 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 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 sine wave generator
(SG 503)
Test set-up:
Settings/procedure and requirements:
1
-
2
3
4
-
5
-
Apply a 50 MHz (30 MHz) sine-wave signal of 1 V(pp into 50Ω) to input
CH1.
Press the AUTOSET key and set CH1 to 0.5V/div.
Use a 50Ω termination.
Set the input coupling of CH1 to DC and POSition the signal in the vertical
center of screen.
Select ’trig’ from the menu under the TB MODE menu key.
PERFORMANCE TEST
6
-
7
8
9
-
10 11 12
13
14
15
-
16 17 18 -
4 - 41
Press the TRIGGER menu key and select level-pp ’off’ and ’dc’ trigger
coupling from the TRIGGER MAIN TB menu
Adjust TRIGGER LEVEL for a correctly triggered display.
Decrease the amplitude of the input signal.
Verify that the signal is well-triggered at amplitudes of 0.6 divisions and
more.
Decrease the input frequency to 50 kHz.
Verify that the signal stays well-triggered at amplitudes of 0.6 divisions and
more.
Increase the input frequency to 100 MHz (60 MHz).
Increase the input voltage to 1.2 division.
Turn TRIGGER LEVEL.
Verify that the signal is well-triggered at amplitudes of 1.2 division and
more.
Increase the input frequency to 200 MHz (150 MHz).
Adjust the input voltage to 2 divisions. Signal must be in vertical center of
screen.
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 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 digital mode.
Press the ANALOG key (’ANALOG MODE is displayed briefly) to return to analog
mode.
4.3.36
MAIN TB/DEL’D TB triggering; trigger sensitivity TVL-TVF
This test checks the trigger sensitivity for television line- and field synchronization
pulses.
Test equipment:
TV pattern generator with video output (PM 5418)
4 - 42
PERFORMANCE TEST
Test set-up:
Note:
1
-
2
3
4
5
6
7
-
the number a various tests to be performed is numerous. Therefore it is
recommended only to check the tv system(s) as used in your country.
The number of tests is also limited by the available TV pattern generator.
Apply a video signal to input CH1 with an amplitude of about 1V
synchronization pulse amplitude; use a 75Ω termination instead of internal
or external 50Ω.
Press the AUTOSET key.
Press menu key TRIGGER and select ’tv’ in the related menu.
Select field 1 or field 2 in the menu.
Select a line number (e.g. 25) by means of the TRACK control.
Select pos or neg (depending on the available TV pattern generator).
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 amplitudes of 0.7 divisions and
more.
4.3.37
DEL’D TB triggering PM3390B/94B; 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
the EXTernal TRIGger input.
PERFORMANCE TEST
4 - 43
Test equipment:
Fluke 5500A mode: levsine
(Alternative: constant amplitude sine wave generators SG 503 + SG 504).
Test set-up:
Settings/procedure and requirements:
1
-
2
3
-
4
-
5
6
-
7
8
-
9
-
10 11 -
12 13 -
Apply a 100 MHz sine-wave signal of 1 V(pp into 50Ω) from the SG 503 to
input CH1.
Press the AUTOSET key and set CH1 to 0.5V/div.
Use a 50Ω termination. For instruments with switchable 50Ω input
impedance it is recommended to make use of this feature (via
VERT MENU KEY).
Set the input coupling of CH1 to DC and POSition the signal in the vertical
center of screen.
Select ’trig’ from the menu under the TB MODE menu key.
Press the TRIGGER menu key and select level-pp ’off’ and ’dc’ trigger
coupling from the TRIGGER MAIN TB menu.
Adjust TRIGGER LEVEL for a correctly triggered display.
Press the DTB menu key and select DEL’D TB ’on’ and MAIN TB ’on’ in
the related menu.
Set MAIN TB to 200 ns/division and DELAYED TIMEBASE to
20.0 ns/division.
Adjust the DELAY control in the DELAYED TIMEBASE section to a delay
time of 1.000 µs.
Select ’trig’d’ and ’dc’ coupling from the DELAYED TIME BASE menu, and
press the front panel key TRIG1. Or TRIG2 (if CH2 on), TRIG3 (if CH3 on),
TRIG4 (if CH4 on).
Adjust the DEL’D TB trigger level via the ∆ control for a well- triggered
signal (intensified part must be visible).
Operate the TRACK control to separate MAIN TB and DEL’D TB for clearly
visible displays.
4 - 44
14 15 16 17 18
19
20
21
-
22 23 24 -
PERFORMANCE TEST
Decrease the amplitude of the input signal.
Verify that the DEL’D TB is well triggered at signal amplitudes of
0.6 divisions and more.
Decrease the input frequency to 50 kHz. Set the MAIN TB to
50.0 µs/division and DEL’D TB to 20.0 µs/division.
Verify that the DEL’D TB stays well triggered at signal amplitudes of
0.6 divisions and more.
Increase the input frequency to 200 MHz.
Increase the input voltage to 1.2 division.
Operate the ∆ control (controls DEL’D TB trigger level).
Verify that the DEL’D TB is well triggered at all amplitudes of 1.2 divisions
or more.
Apply a 300 MHz sine-wave signal of 2V (pp into 50 ohm) from the SG504
generator to input CH1.
Adjust the input voltage to 2 divisions. Signal must be in vertical center of
screen.
Verify that the DEL’D TB is well triggered at signal amplitudes 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 MODE’ is displayed briefly) and repeat the
tests in this chapter for the digital mode.
Then press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return to
analog mode.
4.3.38
DEL’D TB triggering PM3370B/80B/84B; 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 PM3370B/80B, 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 sine wave generator
SG 503)
PERFORMANCE TEST
4 - 45
Test set-up:
Settings/procedure and requirements:
1
-
2
3
4
-
5
6
-
7
8
-
9
-
10 11 -
12 13 14 15 16 -
Apply a 50 MHz (30 MHz) sine-wave signal of 1 V(pp into 50Ω) from the
SG 503 to input CH1.
Press the AUTOSET key and set CH1 to 0.5V/div.
Use a 50Ω termination.
Set the input coupling of CH1 to DC and POSition the signal in the vertical
center of screen.
Select ’trig’ from the menu under the TB MODE menu key.
Press the TRIGGER menu key and select level-pp ’off’ and ’dc’ trigger
coupling from the TRIGGER MAIN TB menu
Adjust TRIGGER LEVEL for a correctly triggered display.
Press the DTB menu key and select DEL’D TB ’on’ and MAIN TB ’on’ from
the related menu.
Set the MAIN TB to 200 ns/division and DELAYED TIMEBASE to
50.0 ns/division.
Adjust the DELAY control in the DELAYED TIMEBASE section to a delay
time of 1.000 µs.
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).
Adjust the DEL’D TB trigger level via the ∆ control for a well- triggered
signal (intensified part must be visible).
Operate the TRACK control to separate the MAIN TB and DEL’D TB for
clearly visible displays.
Decrease the amplitude of the input signal.
Verify that the DEL’D TB is well triggered at signal amplitudes of
0.6 divisions and more.
Decrease the input frequency to 50 kHz. Set the MAIN TB to
50.0 µs/division and DEL’D TB to 20.0 µs/division.
4 - 46
17 18
19
20
21
-
22 23 24 -
PERFORMANCE TEST
Verify that the DEL’D TB stays well triggered at signal amplitudes of
0.6 divisions and more.
Increase the input frequency to 100 MHz (60 MHz).
Increase the input voltage to 1.2 division.
Operate the ∆ control (controls the DEL’D TB trigger level).
Verify that the DEL’D TB is well triggered at all amplitudes of 1.2 division
or more.
Increase the input frequency to 200 MHz (150 MHz).
Adjust the input voltage to 2 divisions.
Verify that the DEL’D TB is well-triggered at signal amplitudes of
2 divisions and more. Signal must be in vertical center of screen. Adjust
the ∆ control (DEL’D TB trigger level) if necessary.
3M3384B: 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 digital mode.
Then press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return to
analog mode.
4.3.39
Trigger sensitivity in logic mode PM3394B
The trigger sensitivity in the logic mode ’pattern’ depends on the amplitude and
frequency of the trigger signal. In this test, the trigger sensitivity is tested with a
sine wave via the CH1, CH2, CH3, and CH4 inputs.
Test equipment:
Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generator
SG 503).
PERFORMANCE TEST
4 - 47
Test setup:
1
-
2
-
3
4
-
5
-
6
7
-
8
-
9 10 11 12 13 14 15 -
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly) to activate
the digital mode.
Apply a 100 MHz sine-wave signal of 1 V(pp into 50 ohm) from the
constant amplitude sine-wave generator to input CH1.
Press the AUTOSET key, and set CH1 to 0.5V/division.
Use a 50 ohm termination. For instruments with switchable 50 ohm input
impedance it is recommended to make use of this feature (via
VERT MENU key).
Set the input coupling to DC and POSition the signal in the vertical center
of the screen.
Select 5.00 ns/division for MAIN TB.
Press the TRIGGER menu key and select ’logic’, ’pattern’, and ’enter’ from
the related menu.
Operate the front panel keys TRIG1, TRIG2, TRIG3 and TRIG4 to obtain
the trigger pattern Hxxx (x = don’t care) in the menu.
Press the TB MODE menu key and select ’trig’ from the related menu.
Decrease the amplitude of the generator voltage to 1 division.
Turn the TRIGGER LEVEL control and check that a well-triggered signal
is obtained.
Apply a 300 MHz sine-wave signal of 2 V(pp into 50Ω) from the SG 504 to
input CH1.
Adjust the input voltage to 2 divisions.
Verify that the signal is well triggered at amplitudes of 2 divisions and
more; adjust TRIGGER LEVEL when necessary.
Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return
to analog mode.
Repeat the procedure for CH2 with trigger pattern xHxx
Repeat the procedure for CH3 with trigger pattern xxHx
Repeat the procedure for CH4 with trigger pattern xxxH
4 - 48
4.3.40
PERFORMANCE TEST
Trigger sensitivity in logic mode PM3384B
The trigger sensitivity in the logic mode ’pattern’ depends on the amplitude and
frequency of the trigger signal. In this test, the trigger sensitivity is tested with a
sine wave via the CH1, CH2, CH3, and CH4 inputs.
Test equipment:
Fluke 5500A mode: levsine: (Alternative: constant amplitude sine wave generator
SG 503).
Test setup:
1
-
2
-
3
4
5
-
6
7
-
8
-
9 10 11 12 13 -
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly) to activate
the digital mode.
Apply a 50 MHz sine-wave signal of 1 V(pp into 50 ohm) from the constant
amplitude sine-wave generator to input CH1.
Press the AUTOSET key, and set CH1 to 0.5V/division.
Use a 50 ohm termination.
Set the input coupling to DC and POSition the signal in the vertical center
of the screen.
Select 5.00 ns/division for MAIN TB.
Press the TRIGGER menu key and select ’logic’, ’pattern’, and ’enter’ from
the related menu.
Operate the front panel keys TRIG1, TRIG2, TRIG3 and TRIG4 to obtain
the trigger pattern Hxxx (x = don’t care) in the menu.
Press the TB MODE menu key and select ’trig’ from the related menu.
Decrease the amplitude of the generator voltage to 1 division.
Turn the TRIGGER LEVEL control and check that a well-triggered signal
is obtained.
Increase the input frequency to 200 MHz.
Increase the input voltage to 2 division.
PERFORMANCE TEST
14 15 -
4 - 49
Turn the TRIGGER LEVEL control, and check that a well-triggered signal
is obtained.
Press the ANALOG key (’ANALOG MODE’ is displayed briefly) to return
to analog mode.
Repeat the procedure for CH2 with trigger pattern xHxx
Repeat the procedure for CH3 with trigger pattern xxHx
Repeat the procedure for CH4 with trigger pattern xxxH
4.3.41
Z-MOD sensitivity
This test checks the sensitivity of the Z modulation facility.
Test equipment:
Fluke 5500A mode: wavegen, wave square (Alternative: function generator
PM 5136).
T-piece.
Test set-up:
Settings/procedure and requirements:
1
-
2
3
4
5
6
-
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.
Press the AUTOSET key.
Set MTB to 0.5 ms/div.
Set the trace of CH1 in mid position with the CH1 POS control.
Apply the same signal by means of the T-piece to the Z input (rear side).
Adjust TRACE INTENSITY so that only the bottom half of the squarewave
is displayed. The top half must be invisible (0.5 ms light on; 0.5 ms light off).
4 - 50
7
8
9
-
4.3.42
PERFORMANCE TEST
Decrease the input signal to 0.5 Vpp with an offset of 0.25V.
Set CH1 to 0.5V/division.
Verify that the top half of the square wave is visible at full intensity.
Probe Adjust signal; frequency and output voltage
The Probe Adjust signal is a calibration signal with fixed frequency and voltage.
In this test, the values of frequency and voltage are checked.
Test equipment:
None
Test set-up:
OSCILLOSCOPE UNDER TEST
Probe
Adjust
CH1
CH2
PROBE
+
CABLE
CH3
CH4
MAT4137
9303
Settings/procedure:
1
-
2
3
4
-
Connect the Probe Adjust signal to input CH1 and press the AUTOSET
key.
Select GND of CH1.
Set the trace in the center of the screen.
Select DC input coupling for CH1.
Requirements:
1
-
2
-
Verify that a positive going square-wave signal of 0.6 V(pp) is displayed,
i.e. 3 divisions vertical at 0.2V.
Verify that the frequency of the displayed signal is about 2 kHz, i.e. a
period time between 4.0 … 6.0 divisions horizontal at MTB 100 µs/div.
PERFORMANCE TEST
4.3.43
4 - 51
Auto range functions
The AUTO RANGE function of the vertical channels automatically selects the
input sensitivity. The result is that the input signal is displayed with 2 to 6.4
divisions amplitude.
The AUTO RANGE function of the main time base (MAIN TB) adjusts the time
base automatically so that approximately 2 to 6 waveform periods are displayed.
Test equipment:
Fluke 5500A mode: wavegen, wave sine (Alternative: function generator,
PM 5136)
Settings/procedure:
1
2
3
-
4
-
5
-
6
-
Apply a 50kHz sine-wave signal of 2 V(pp) to CH1.
Press the AUTOSET key.
Adjust the generator output voltage to maximum (20 ... 30 V
approximately). The signal amplitude now exceeds the 8 div screen
height.
Press the ANALOG key (’DIGITAL MODE’ is displayed briefly) to switch
the digital mode to on.
Press the CH1 AUTO RANGE key. Check that the vertical amplitude is
automatically adjusted to between 2 and 6.4 divisions.
Vary the generator output voltage from maximum to 100 mV.
Requirements:
-
Check that the signal amplitude stays between 2 and 6.4 divisions.
Repeat this procedure for the other vertical channels that have an AUTO
RANGE key.
4 - 52
PERFORMANCE TEST
Settings/procedure:
1
2
3
4
-
Adjust the generator to a 1 kHz sine-wave of 2 V(pp) applied to CH1.
Press the AUTOSET key.
Press the AUTO RANGE key of the main time base MAIN TB.
Vary the generator output frequency between 1kHz and maximum
(10 MHz approxinately).
Requirement:
-
Check that between 2 and 6 waveform periods are displayed.
4.3.44
Testing the optional auxiliary outputs
MTB-GATE and DTB-GATE 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 result is that MTB is in 1.00 ms/
div and that DTB is in 100 µs/div and that both time bases are on.
- Apply a 50Ω coaxial cable to rear panel output ‘MTB-GATE’.
- Apply another 50Ω coaxial cable to rear panel output ‘DTB-GATE’.
PERFORMANCE TEST
4 - 53
Measuring oscilloscope:
- Apply the coaxial cable from signal ‘MTB GATE’ of the oscilloscope under test
to input CH1 of the measuring oscilloscope.
- Apply the coaxial cable from signal ‘DTB GATE’ of the oscilloscope under test
to input CH2 of the measuring oscilloscope.
- Press the green AUTOSET key.
- Adjust CH1 and CH2 to DC input coupling; if the ocilloscope is in 50Ω (‘LZ’)
position, select an input impedance of 1MΩ.
- Adjust CH1 and CH2 to 2 V/div.
- Select 2 ms/div for MTB.
Requirements:
-
Verify that two square-wave signals are displayed via CH1 and CH2 of the
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 amplitude
sine-wave generator SG503).
Test set up:
Settings/procedure:
-
-
Apply a 50 kHz sine-wave signal of 600 mV (pp into 50Ω) to input CH1 and
press the green AUTOSET key.
Use external 50Ω termination at the CH1 input. Use the internal termination of
the oscilloscope, when available (if active, the text ‘LZ’ is visible in the lower
part of the viewing area).
Set CH1 to 0.1 V/div.
4 - 54
-
-
PERFORMANCE TEST
Adjust the generator signal to an amplitude of exactly 6 divisions.
Connect the rear side output Y-OUT via a coaxial cable with the CH2 input.
Use external 50Ω termination at the CH2 input. Use the internal termination of
the oscilloscope, when available (if active, the text ‘LZ’ is visible in the lower
part of the viewing area).
Switch CH2 to on and CH1 to off.
Put CH2 in 10 mV/div.
Requirement:
Check for a vertical 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 50 kHz .. full bandwidth. The observed
bandwidth curve is that of CH1 and CH2 in cascade.
EXT TRIGger input
Test equipment:
-
Fluke 5500A mode: levsine (Alternative: constant amplitude sine-wave
generator SG503).
Power splitter.
Test set up:
PERFORMANCE TEST
4 - 55
Settings/procedure:
-
-
Use a power splitter and two coaxial 50Ω cables to apply the generator output
signal to input CH1 and the rear panel input ‘EXT TRIG’.
Use an external 50Ω termination at the end of each cable. When available,
use the internal termination of input CH1 (if active, the text ‘LZ’ is visible in the
lower part of the viewing area).
Adjust the generator output signal for a 50 kHz sine-wave of 200 mV (pp
output amplitude into 50Ω).
Press the green AUTOSET key.
Press the TRIGGER menu key to 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 dimmed).
Settings/procedure:
-
Adjust the generator output voltage to a vertical display of 4 divisions.
Slowly increase the frequency of the generator signal from 5 MHz to 10 MHz.
Requirements:
Check that the signal diplayed via CH1 stays well triggered across the indicated
frequency range (the ‘ARM’D LED must stay dimmed).
PREVENTIVE MAINTENANCE
5-1
5 PREVENTIVE MAINTENANCE
5.1 GENERAL INFORMATION
This instrument normally requires no maintenance, since none of its components
is subject to wear.
However, to ensure reliable and trouble-free operation, the instrument should not
be exposed to moisture, heat, corrosive elements or excessive dust.
5.2 REMOVING THE BEZEL AND THE CONTRAST
FILTER
The bezel can be removed by pulling the upper rim away from the front panel. This
makes the contrast filter accessible for e.g. cleaning. The filter has open spaces
at the edges that allow to lift it from the screen with a small screwdriver.
When cleaning 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 a damp cloth and a mild soap (remove all input
signals and disconnect the instrument line power). Do not use abrasives, solvents
or alcohol. These may damage the text on the instrument.
5.4 RECALIBRATION
From experience, it is expected that the instrument operates within its
specifications for a period of at least 2,000 hours, or for one year if used
infrequently. Recalibration must be carried out by qualified personnel only.
5-2
PREVENTIVE MAINTENANCE
5.5 MAINTENANCE
Do not open the 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).
SERVICE CENTERS
To locate an authorized service center, visit us on the World Wide Web:
http://www.fluke.com
or call Fluke using any of the phone numbers listed below:
+1-888-993-5853 in U.S.A. and Canada
+31-402-678-200 in Europe
+1-425-356-5500 from other countries
SERVICE-ZENTREN
Wenn Sie die Adresse eines authorizierten 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 téléphonez à Fluke:
+1-888-993-5853 aux U.S.A. et au Canada
+31-402-678-200 en Europe
+1-425-356-5500 pour les autres pays