Hameg HM404-2.02 User manual

®
Instruments
HANDBUCH•MANUAL•MANUEL
Oscilloscope
HM404-2.02
ENGLISH

MANUAL•HANDBUCH•MANUEL

3
Subject to change without notice
Table of contents
St.210601-Hüb/tke
General information regarding the CE marking ............ 4
General Information ........................................................ 6
Symbols ......................................................................... 6
Use of tilt handle ............................................................ 6
Safety ............................................................................. 6
Intended purpose and operating conditions ................. 6
EMC ............................................................................... 7
Warranty......................................................................... 7
Maintenance .................................................................. 7
Protective Switch-Off .................................................... 7
Power supply ................................................................. 7
Type of signal voltage ..................................................... 8
Amplitude Measurements ............................................. 8
Total value of input voltage............................................ 9
Time Measurements ..................................................... 9
Connection of Test Signal ............................................ 10
Controls and Readout .................................................... 11
Menu ................................................................................ 20
First Time Operation ...................................................... 20
Trace Rotation TR ........................................................ 21
Probe compensation and use ...................................... 21
Adjustment at 1kHz ..................................................... 21
Adjustment at 1MHz ................................................... 21
Operating modes of the vertical
amplifiers in Yt mode. ................................................. 22
X-Y Operation ............................................................... 22
Phase comparison with Lissajous figures .................. 23
Phase difference measurement
in DUAL mode (Yt) ....................................................... 23
Phase difference measurement in DUAL mode ........ 23
Measurement of an amplitude modulation ................ 23
Triggering and time base .............................................. 24
Automatic Peak (value) -Triggering.............................. 24
Normal Triggering ......................................................... 24
SLOPE ................................................................... 25
Trigger coupling ............................................................ 25
Triggering of video signals ........................................... 25
Line triggering (~) ........................................................ 26
Alternate triggering ...................................................... 26
External triggering ........................................................ 26
Trigger indicator ”TR” .................................................. 27
HOLD OFF-time adjustment ....................................... 27
Delay / After Delay Triggering ..................................... 27
AUTO SET ....................................................................... 29
Mean Value Display ....................................................... 29
Component Tester .......................................................... 30
General ........................................................................ 30
Using the Component Tester ...................................... 30
Test Procedure ............................................................. 30
Test Pattern Displays ................................................... 30
Testing Resistors ......................................................... 30
Testing Capacitors and Inductors ................................ 30
Testing Semiconductors ............................................. 30
Testing Diodes ............................................................. 30
Testing Transistors ...................................................... 31
In-Circuit Tests ............................................................. 31
Adjustments.................................................................... 31
RS232 Interface - Remote Control ............................... 32
Safety ........................................................................... 32
Operation ..................................................................... 32
RS-232 Cable ............................................................... 32
RS-232 protocol ........................................................... 32
Baud-Rate Setting ........................................................ 32
Data Communication ................................................... 32
Front Panel HM404-2 ..................................................... 33
Oscilloscope
HM404-2.02

Subject to change without notice
4
General information regarding the CE marking
HAMEG instruments fulfill the regulations of the EMC directive. The conformity test made by HAMEG is based on the actual generic- and
product standards. In cases where different limit values are applicable, HAMEG applies the severer standard. For emission the limits for
residential, commercial and light industry are applied. Regarding the immunity (susceptibility) the limits for industrial environment have been
used.
The measuring- and data lines of the instrument have much influence on emmission and immunity and therefore on meeting the acceptance
limits. For different applications the lines and/or cables used may be different. For measurement operation the following hints and conditions
regarding emission and immunity should be observed:
1. Data cables
For the connection between instruments resp. their interfaces and external devices, (computer, printer etc.) sufficiently screened cables must
be used. Without a special instruction in the manual for a reduced cable length, the maximum cable length of a dataline must be less than 3
meters and not be used outside buildings. If an interface has several connectors only one connector must have a connection to a cable.
Basically interconnections must have a double screening. For IEEE-bus purposes the double screened cables HZ72S and HZ72L from HAMEG
are suitable.
2. Signal cables
Basically test leads for signal interconnection between test point and instrument should be as short as possible. Without instruction in the
manual for a shorter length, signal lines must be less than 3 meters and not be used outside buildings.
Signal lines must screened (coaxial cable - RG58/U). A proper ground connection is required. In combination with signal generators double
screened cables (RG223/U, RG214/U) must be used.
3. Influence on measuring instruments.
Under the presence of strong high frequency electric or magnetic fields, even with careful setup of the measuring equipment an influence of
such signals is unavoidable.
This will not cause damage or put the instrument out of operation. Small deviations of the measuring value (reading) exceeding the instruments
specifications may result from such conditions in individual cases.
4. RF immunity of oscilloscopes.
4.1 Electromagnetic RF field
The influence of electric and magnetic RF fields may become visible (e.g. RF superimposed), if the field intensity is high. In most cases the
coupling into the oscilloscope takes place via the device under test, mains/line supply, test leads, control cables and/or radiation. The device
under test as well as the oscilloscope may be effected by such fields.
Although the interior of the oscilloscope is screened by the cabinet, direct radiation can occur via the CRT gap. As the bandwidth of each
amplifier stage is higher than the total –3dB bandwidth of the oscilloscope, the influence RF fields of even higher frequencies may be noticeable.
4.2 Electrical fast transients / electrostatic discharge
Electrical fast transient signals (burst) may be coupled into the oscilloscope directly via the mains/line supply, or indirectly via test leads and/or
control cables. Due to the high trigger and input sensitivity of the oscilloscopes, such normally high signals may effect the trigger unit and/or
may become visible on the CRT, which is unavoidable. These effects can also be caused by direct or indirect electrostatic discharge.
HAMEG GmbH
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
DECLARATION DE CONFORMITE
Instruments
Herstellers HAMEG GmbH
Manufacturer Kelsterbacherstraße 15-19
Fabricant D - 60528 Frankfurt
Bezeichnung / Product name / Designation:
Oszilloskop/Oscilloscope/Oscilloscope
Typ / Type / Type: HM404-2
mit / with / avec: -
Optionen / Options / Options: -
mit den folgenden Bestimmungen / with applicable regulations / avec les
directives suivantes
EMV Richtlinie 89/336/EWG ergänzt durch 91/263/EWG, 92/31/EWG
EMC Directive 89/336/EEC amended by 91/263/EWG, 92/31/EEC
Directive EMC 89/336/CEE amendée par 91/263/EWG, 92/31/CEE
Niederspannungsrichtlinie 73/23/EWG ergänzt durch 93/68/EWG
Low-Voltage Equipment Directive 73/23/EEC amended by 93/68/EEC
Directive des equipements basse tension 73/23/CEE amendée par 93/68/CEE
Angewendete harmonisierte Normen / Harmonized standards applied / Normes
harmonisées utilisées
Sicherheit / Safety / Sécurité
EN 61010-1: 1993 / IEC (CEI) 1010-1: 1990 A 1: 1992 / VDE 0411: 1994
EN 61010-1/A2: 1995 / IEC 1010-1/A2: 1995 / VDE 0411 Teil 1/A1: 1996-05
Überspannungskategorie / Overvoltage category / Catégorie de surtension: II
Verschmutzungsgrad / Degree of pollution / Degré de pollution: 2
Elektromagnetische Verträglichkeit / Electromagnetic compatibility
Compatibilité électromagnétique
EN 61326-1/A1
Störaussendung / Radiation / Emission: Tabelle / table / tableau 4, Klasse / Class
/ Classe B.
Störfestigkeit / Immunity / Imunitee: Tabelle / table / tableau A1.
EN 61000-3-2/A14
Oberschwingungsströme / Harmonic current emissions / Émissions de courant
harmonique:
Klasse / Class / Classe D.
EN 61000-3-3
Spannungsschwankungen u. Flicker / Voltage fluctuations and flicker /
Fluctuations de tension et du flicker.
Datum /Date /Date Unterschrift / Signature /Signatur
15.01.2001
E. Baumgartner
Technical Manager /Directeur Technique
®

5
Subject to change without notice
Accessories supplied: Line Cord, Operators Manual on CD-ROM, 2 Probes1:1/ 10:1
40MHz Analog-Oscilloscope HM404 -2
Autoset, Save / Recall, Readout / Cursor and RS-232 Interface
2 Channels, DC - 40MHz, 1mV - 20V/div., Component Tester
Triggering: DC to 100 MHz; Automatic Peak to Peak; ≤≤
≤≤
≤0,5div.
Time Base: 0.5 s/div. to 10 ns/div.; with Delay & 2nd Trigger.
Specifications
Vertical Deflection
Operating modes: Channel I or CH II separate,
Channel I and II: alternate or chopped
Chopper Frequency: approx. 0.5MHz
Sum or Difference: from Channel I and CH. II
Invert: CH II
XY-Mode: via CH I(X) and CH I(Y)
Frequency range: 2x DC to 40MHz (-3dB)
Overshoot: ≤1%. Risetime: <8.75ns
Deflection coefficient: 14 calibrated positions
from 1mV/div to 20V/div in 1-2-5 sequence,
with variable 2.5:1 up to 50V/div.
Accuracy in calibrated positions
1mV/div to 2mV/div: ±5% (DC - 10MHz (-3dB))
5mV/div to 20V/div: ±3%
Input impedance: 1MΩII 18pF
Input coupling: DC - AC - GD (ground)
Input voltage: max. 400V (DC + peak AC)
Triggering
Automatic (peak to peak): ≥0.5div.
Range: ≥20Hz-100MHz
Normal with level control:DC-100MHz≤ (0.5div.)
Indicator for trigger action: LED
Slope: positive or negative
Sources: CH I or II, line, external
ALT. Triggering: CHI / CHII (≥0.8div.)
Coupling: AC (10Hz-100MHz)
DC (0-100MHz)
HF (50kHz - 100MHz)
LF (0 - 1.5kHz)
2nd triggering: normal with level control
External: ≥0.3Vpp (0 – 100MHz)
Active TV Sync. Separator: field & line, +/ –
Horizontal Deflection
Time coefficients: 22 calibrated steps from
0.5s/div. - 50ns/div. (±3%) in 1-2-5 sequence
Variable 2.5:1 up to 1.25s/div.(uncal.)
X-MAG.x10: up to 10ns/div. ±5%
Delay: approx. 140ms - 200ns, variable
Hold-off time: variable to approx. 10:1
Bandwidth X-amplifier: 0-3MHz (-3dB)
Input X-amplifier: via Channel I, Sensitivity see CH I
X-Y-phase shift: <3° below 120kHz.
Operation / Control
Manual (front panel switches)
Autoset (automatic parameter selection)
Save/Recall:
9user defined parameter settings
RS232: interface for remote control via a PC
Readout: Display of parameter settings
Cursor measurement: ∆V, ∆t or ∆1/t (frequ.)
Component Tester
Test voltage: approx. 7Vrms (open circuit)
Test current: max. 7mArms (short circuit)
Test frequency: approx.50Hz
One test lead is grounded (Safety Earth)
General Information
CRT: Screen (8x10cm) internal graticule
Acceleration voltage: approx 2000V
Trace rotation: adjustable on front panel
Z Input: (Intens. modulation), max. +5V (TTL)
Calibrator:
0,2V ±1%, ≈ 1kHz/1MHz (t
r
<4ns)
Line voltage: 100-240V AC ±10%, 50/60Hz
Power consumption:approx. 34 Watt at 50Hz
Min./Max. ambient temperature: 0°C...+40°C
Protective system: Safety class I (IEC1010-1)
Weight: approx. 5.6kg. Color: techno-brown
Cabinet: W 285, H 125, D 380 mm
Subject to change without notice. 06/98
Signals of 50 and 100 MHz, alternate mode,
display of cursors and frequency values.
TV burst signal in delay mode with 2. trigger.
The excellent user interface characteristics of the new HM404-2 oscilloscope are
comparable with high tech scopes. Supported by two microprocessors any front
panel input is executed in a fraction of a second. A selftest procedure checks all
relevant parameters of the device; the test results will be displayed on screen within
ten seconds after power on. Supported by an on screen menu adjustments can be
performed without opening the scope.
It is recommended to use the Autoset function if signals of lower complexity shall
be displayed. The scope’s logic circuitry performs all relevant parameter settings
automatically to optimize the presentation of the signal(s). Of course, any parameter
may be modified manually as required. Front panel settings (measurement parameters)
and selected features are alphanumerically displayed on the screen. The cursor
functions enable the user to analyze a signal while watching the numeric readout for
voltage difference, time difference, or frequency values. Another feature is the sto-
rage capability for nine complete parameter settings, which may be stored and recalled
randomly by pushing the according front panel key.
Because of its high performance characteristics of the broad band signal amplifiers
and its excellent trigger bandwidth the scope is capable to display 100 MHz signals.
A delayed time base combined with a second trigger circuit makes the HM404-2 an
ideal instrument for high-resolution analysis of expanded, asynchronous signals.
Furthermore, the built in component tester and the 1kHz/1MHz calibrator are standard
equipment for this class of HAMEG scopes.
The instrument may be remotely controlled by any personal computer via its built-
in serial interface. A CD-ROM supplied with the scope, contains the instrument
commands and programming examples.