HAMEG HMO3522, HMO3524 User guide

350 MHz

Digital Oscilloscope

with FFT and mixed-signal (option)

HMO3522/3524

Manual

English

General information regarding the CE marking

KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
DECLARATION DE CONFORMITE

Hersteller HAMEG Instruments GmbH
Manufacturer Industriestraße 6
Fabricant D-63533 Mainhausen

General information regarding the CE marking

HAMEG instruments fulfi ll the re gulations of t he EMC direc tive. The conf ormity
te st ma de b y H AM EG i s b as ed o n t he a ct ua l g ene ri c- and pr od uc t st an da rd s. In
cases where different limit values are applicable, HAMEG applies the severer
stan dard. For emis sion the limit s for reside ntial, commer cial and light i ndustry
are applied. Regarding the immunity (susceptibility) the limits for industrial
environment have been used.

The measuring- and data lines of the instrument have much infl uence on
emission 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 an d conditions r egarding emi ssion
and immunity should be observed:

Die HAMEG Instruments GmbH bescheinigt die Konformität für das Produkt
The HAMEG Instruments GmbH declares conformity of the product
HAMEG Instruments GmbH déclare la conformite du produit

Bezeichnung: Oszilloskop
Product name: Oscilloscope
Designation: Oscilloscope

Typ / Type / Type: HMO3524

mit / with / avec: HO720

Optionen / Options / Options: HO730, HO740

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 61010-1:2001 (IEC 61010-1:2001)

1. Data cables

For the connection between instrument interfaces and external devices,
(computer, printer etc.) suffi ciently 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
buildi ngs. If an inter face has se veral conne ctors only on e connector mu st have
a connection to a cable.

Basically interconnections must have a double screening. For IEEE-bus
purposes the double screened cable HZ72 from HAMEG is 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. Infl uence on measuring instruments

Under the presence of strong high frequency electric or magnetic fi elds, even
with careful setup of the measuring equipment, infl uence 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
specifi cations may result from such conditions in individual cases.

Messkategorie / Measuring category / Catégorie de mesure: I

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 / Imunitée: 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 fl uctuations
and fl icker / Fluctuations de tension et du fl icker.

Datum / Date / Date

01. 03. 2009

Unterschrift / Signature / Signatur

Holger Asmussen
Manager

4. RF immunity of oscilloscopes.

4.1 Electromagnetic RF fi eld

The infl uence of electric and magnetic RF fi elds may become visible (e.g. RF
superimposed), if the fi eld 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 fi elds.

Although the interior of the oscilloscope is screened by the cabinet, direct
radiation can occur via the CRT gap. As the bandwidth of each amplifi er stage
is higher than the total –3dB bandwidth of the oscilloscope, the infl uence of RF
fi elds 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 TF T, which is unavoidable. These effects can also be caused by direct
or indirect electrostatic discharge.

HAMEG Instruments GmbH

2

Subject to change without notice

Contents

General information regarding the CE marking 2

350 MHz Digital Oscilloscope HMO3522 / HMO3524 4

Specifi cations 5

1 Installation and safety instructions 6

1.1. Setting up the instrument 6

1.2. Safety 6

1.3. Correct operation 6

1.4. Ambient conditions 6

1.5. Warranty and repair 6

1.6. Maintenance 7

1.7. CAT I 7

1.8. Mains voltage 7

2 Familiarize yourself with your new HAMEG
Digital Storage Oscilloscope 8

2.1. Front view 8

2.2. Control panel 8

2.3. Screen 9

2.4. Rear view 9

2.5. Options 9

2.6. General concept of instrument operation 9

2.7. Basic setting and integrated help 10

2.8. Firmware- and help updates 11

3 A quick introduction 12

3.1. Setting up and turning the instrument on 12

3.2. Connection of a probe and signal capture 12

3.3. Display of signal details 12

3.4. Cursor measurements 13

3.5. Automatic measurements 13

3.6. Mathematical functions 14

3.7. Storing data 14

7 Display of signals 20

7.1. Display settings 20

7.2. Use of the virtual screen area 20

7.3. Signal intensity and persistence functions 21

7.4. XY display 21

8 Measurements 22

8.1. Cursor measurements 22

8.2. Auto measurements 23

8.3. Quickview measurements 24

9 Analysis 24

9.1. Quick mathematics 24

9.2. Formula editor 25

9.3. Frequency analysis (FFT) 26

10 Documentation, storing and recalling 27

10.1. Instrument settings 27

10.2. References 28

10.3. Curves 28

10.4. Screen shots 29

10.5. Sets of formulas 29

10.6. Defi nition of the FILE/PRINT key 29

11 Mixed Signal Operation (optional) 30

11.1. Logic trigger 30

11.2. Display functions of the logic channels 30

11.3. Cursor measurements for the logic channels 31

12 Appendix 32

4 Vertical system 15

4.1. Coupling 15

4.2. Sensitivity, Y-Positioning, and Offset 16

4.3. Bandwidth Limit and Signal Inversion 16

4.4. Probe attenuation selection 16

5 Horizontal System (Time Base) 17

5.1. Capturing modes RUN and STOP 17

5.2. Time base adjustments 17

5.3. Capture modes 17

5.4. ZOOM function 17

6 Trigger System 18

6.1. Trigger modes Auto, Normal, Single 18

6.2. Trigger sources 19

6.3. Slope trigger 19

6.4. Pulse trigger 19

6.5. Video trigger 20

Subject to change without notice

3

HMO3524

 4GSa /s Real time, 50GSa /s Random sampling,

low noise flash A/ D converter (reference class)

 2MPts memory per channel, memory oom up to 100,000:1

 MSO (Mixed Signal Opt. HO3508) with 8 /16 logic channels

 Vertical sensitivity 1mV...5V/div. (into 1MΩ/50Ω)

Offset control ±0,2...±20V

 12div. x-axis display range

 Trigger modes: slope, video, pulsewidth, logic,

delayed, event

 FFT for spectral analysis

 6 digit counter, Autoset, automeasurement, formula editor

 6.5” TFT VGA display, DVI output

 3 x USB for mass storage, printer and remote ctrl.

optional IEEE-488 or Ethernet/USB

350MHz 2/4 Channel Digital Oscilloscope

HMO3522/HMO3524

HMO3524

NEW

The operating mode XYZ

Carrying Case HZ99

8 Channel
logic probe HO3508

4

Subject to change without notice

350 MHz 2 [4] Channel Digital Oscilloscope

HMO3522 [HMO3524]

All data valid at 23 °C after 30 minute warm-up

Display

Display: 6,5” VGA Color TFT
Resolution: 640 x480 Pixel
Backlight: LED 400cd/m

2

Display area for curves:

without menu 400 x 600 Pixel (8x 12 div.)

with menu 400 x 500 Pixel (8x 10 div.)
Color depth: 256 colors
Intensity steps per channel: 0…31

Vertical System

Channels:

DSO mode CH1, CH2 [CH1...CH4]

MSO mode CH1, CH2 LCH 0...15 (logic channels)

with 2 x Option HO3508

Auxiliary input: Frontside [Rear side]

Function Ext. Trigger

Impedance 1MΩ || 13pF ± 2pF

Coupling DC, AC

Max. input voltage 100V (DC + peak AC)
XYZ-mode: All analog channels on individual choise
Invert: CH 1, CH 2 [CH1...CH4]
Y-bandwidth (-3dB): 350MHz (5 mV...5V)/ div.

100MHz (1mV, 2mV) / div.

Lower AC bandwidth: 2Hz
Bandwidth limiter
(switchable): approx. 20MHz
Rise time (calculated): ‹ 1ns
DC gain accuracy 2%
Input sensitivity: 12 calibrated steps

CH1, CH2 [CH1...CH4] 1mV/div.…5V/div. (1-2-5 Sequence)
Variable Between calibrated steps

Inputs CH1, CH2 [CH1…CH4]:

Impedance 1MΩ II 13pF ± 2pF (50Ω switchable)

Coupling DC, AC, GND

Max. input voltage 200V (DC + peak AC), 50Ω ‹ 5V

rms

Measuring circuits: Measuring Category I (CAT I)
Position range ± 10Divs
Offset control:

1mV, 2mV ±0,2V

5mV…50mV ±1V

100mV…5V ±20V
Logic channels With Option HO3508

Select. switching thresholds TTL, CMOS, ECL, 2 x User -2V…+8V

Impedance 100kΩ || ‹ 4pF

Coupling DC

Max. input voltage 40V (DC + peak AC)

Triggering

Analog channels:
Automatic: Linking of peakdetection and triggerlevel

Min. signal height 0.8 div; 0.5div typ.

Frequency range 5Hz…400MHz

Level control range From peak- to peak+
Normal (without peak):

Min. signal height 0.8 div; 0.5div typ.

Frequency range 0…400MHz

Level control range –10div....+10div.

Operating modes: Slope / Video/Logic/ Pulse
Slope: Rising, falling, both

Sources: CH1, CH2, Line, Ext., LCH0…15

[CH1...CH4, Line, Ext., LCH0…15]

Coupling: AC: 5Hz...400MHz

DC: 0...400MHz
HF: 30kHz...400MHz
LF: 0...5kHz
Noise rejection: 100MHz LPF switchable

Video: Pos. / neg. sync. impulse

Standards 525 Line / 60Hz systems

625 Line/50Hz systems

Fields Field 1, field 2, both

Line All, selectable line number

Source CH1, CH2, Ext. [CH1...CH4]
Logic: AND, OR, TRUE, FALSE

Source LCH0…15

State LCH0…15 X, H, L
Indicator for trigger action: LED
Ext. Trigger via: Auxiliary input [Aux. input at rear side]

0,3V…10V

ss

2nd Trigger:

Slope Rising, falling, both

Accessories supplied: Line cord, Operating manual, 2 [4] Probes, 10:1 with
attenuation ID (HZ350), Dual-Interface USB/RS-232 (HO720), CD

Optional accessories:

HO730 Dual-Interface Ethernet/USB
HO740 Interface IEEE-488 (GPIB) galvanically isolated
HZ46 4RU 19'' Rackmount Kit
HZ355 Slimline Probe 10:1 with automatically identification
HO3508 8 Channel Logic Probe

Min. signal height 0.8 div; 0.5div typ.
Frequency range 0…400MHz

Level control range –10div....+10div.

Operating modes:
after time 20ns…0.1s
after incidence 1…2

16

Horizontal System

Domain representation: Time, Frequency (FFT), Voltage (XY)
Representation Time Base: Main-window, main- and zoom-window
Memory Zoom: Up to 100.000:1
Accuracy: 15ppm
Time Base:

Refresh operating modes 1ns / div.…20ms / div.
Roll operating modes 50ms / div.…50s / div.

Digital Storage

Sampling rate (real time): 2x2GSa/s, 1x4GSa/s

[4 x 2GSa/s, 2 x 4GSa/s]
Logic channels: 16 x 1GSa/s

Sampling rate (random): 50GSa/s (n / a to logic channels)
Memory: 2 x 2MPts [4 x2MPts]
Operation modes: Refresh, Average, Envelope, Peak-Detect

Roll: free run/ triggered, Smooth

Resolution (vertical) 8Bit
Resolution (horizontal)

Yt Mode (50 Pts./div.)

XY Mode 8Bit
Interpolation: Sinx / x (CH1...CH4), Pulse (LCH0...15)
Persistence: Off, 50 ms...∞
Delay pretrigger: 0...2 Million x (1/samplerate)

posttrigger: 0...8 Million x (1/samplerate)
Display refresh rate: Up to 2500 waveforms/ s
Display: Dots, vectors (interpolation), ‘persistence’
Reference memories: typ. 10 Traces

Operation / Measuring / Interfaces

Operation: Menu-driven (multilingual), Autoset,

help functions (multilingual)

Save / Recall memories: typ. 10 complete instrument parameter

settings

Frequency counter:

0.5Hz...350MHz 6 Digit resolution

Accuracy 15ppm
Auto measurements: Frequency, Period, pulse count, UDC, Upp,

Up+, Up-, U

RMS

, U

Avg

, t

Rise

, t

Fall

Cursor measurements: ΔV, Δt, 1/Δt (f), V to Gnd, Vtrelated to Trigger

point, ratio X and Y, pulse count, peak to
peak, peak+, peak-

Interface: Dual-Schnittstelle USB/RS-232 (HO720)

USB-Stick (frontside)
USB-Printer (rear side) with SW V2.0
DVI for ext. monitor

Optional: IEEE-488, Ethernet/USB

Mathematic functions

Number of formula sets: typ. 10 formula sets with up to 5 formulas each
Sources: All channels and math. memories
Targets: Math. memories
Functions: ADD, SUB, 1/X, ABS, MUL, DIV, SQ,

POS, NEG, INV

Display: Up to 4 math. memories

General Information

Probe ADJ Output: 1kHz/1MHz square wave signal ~0.2V

pp

(ta ‹ 4ns)

Internal RTC (Realtime clock): Date and time for stored data
Line voltage: 105...253V, 50/60Hz, CAT II
Power consumption: Max. 70Watt at 230V, 50Hz
Protective system: Safety class I (EN61010-1)
Operating temperature: +5°C...+40°C
Storage temperature: -20 °C...+70°C
Rel. humidity: 5%...80% (non condensing)
Dimensions (W x H x D): 285x175x220mm
Weight: 3.6kg

Technische Daten

Dual-Interface USB/RS-232 (HO720)

Subject to change without notice

5

Installation and safety instructions

1 Installation and safety instructions

1.1. Setting up the instrument

As can be seen from the fi gures, the handle can be set into
different positions:

A and B = carrying
C = horizontal operating
D and E = operating at different angles
F = handle removal
G = operating using the feet‘s, batch use and for shipping in
original packaging

Attention!

When changing the handle position, the instrument

must be placed so that it cannot fall (e.g. placed on
a table). Then the handle locking knobs must be
simultaneously pulled outwards and rotated to the
required position. Without pulling the locking knobs
they will latch in into the next locking position.

Removal/fi tting of the handle: The handle can be removed in

position F, pulling the side parts outside the housing. Adding
the handle works vice versa.

1.2. Safety

The instrument fulfi ls the VDE 0411 part 1 regulations for
electrical measuring, control and laboratory instruments and
was manufactured and tested accordingly. It left the factory in
perfect safe condition. Hence it also corresponds to European
Standard EN 61010-1 and International Standard IEC 1010-1.
In order to maintain this condition and to ensure safe opera­tion the user is required to observe the warnings and other
directions for use in this manual. Housing, chassis as well as
all measuring terminals are connected to safety ground of the
mains. All accessible metal parts were tested against the mains
with 2200 V
oscilloscope may only be operated from mains outlets with a
safety ground connector. The mains plug has to be installed
prior to connecting any signals. It is prohibited to separate the
safety ground connection. If suspected that safe operation may
not be guaranteed do not use the instrument any more and lock
it away in a secure place.

Safe operation may be endangered if any of the following was
noticed:

– in case of visible damage.
– in case loose parts were noticed
– if it does not function any more.
– after prolonged storage under unfavourable conditions (e.g.

like in the open or in moist atmosphere).

– after any improper transport (e.g. insuffi cient packing not

conforming to the minimum standards of post, rail or trans­port fi rm)

. The instrument conforms to safety class I. The

DC

Removing the handle (Pos. F)

A

C

D

D

B

A

1.3. Correct operation

Please note: This instrument is only destined for use by person­nel well instructed and familiar with the dangers of electrical
measurements. For safety reasons the oscilloscope may only
be operated from mains outlets with safety ground connector.
It is prohibited to separate the safety ground connection. The

B

C

G

F

E

G

plug must be inserted prior to connecting any signals.

The oscilloscope is destined for operation in industrial, business,
manufacturing, and domestic sites.

1.4. Ambient conditions

Operating ambient temperature: +5 °C to +40 °C. During trans­port or storage the temperature may be –20 °C to +70°C. Please
note that after exposure to such temperatures or in case of
condensation, proper time must be allowed until the instrument
has reached the permissible temperature, and until the con­densation has evaporated before it may be turned on! Ordinarily
this will be the case after 2 hours. The oscilloscope is destined
for use in clean and dry environments. Do not operate in dusty
or chemically aggressive atmosphere or if there is danger of
explosion. The any operating position may be used, however,
suffi cient ventilation must be ensured. Prolonged operation
requires the horizontal or inclined position.

Do not obstruct the ventilation holes!

Specifi cations are valid after a 30 minute warm-up period at 23
degr. C (tolerance ±2 degr. C). Specifi cations without tolerances
are average values.

E

Positions of the instrument

6

Subject to change without notice

1.5. Warranty and repair

HAMEG instruments are subjected to a strict quality control.

Carrying positionsOperating positions

Stacking positions

Prior to leaving the factory, each instrument is burnt in for 10
hours. By intermittent operation during this period almost all
defects are detected. Following the burn in, each instrument is
tested for function and quality, the specifi cations are checked

Installation and safety instructions

in all operating modes; the test gear is calibrated to national
standards.

The warranty standards applicable are those of the country
in which the instrument was sold. Reclamations should be
directed to the dealer.

Only valid in EU countries

In order to speed claims, customers in EU countries may also
contact HAMEG directly. Also, after the warranty expired, the
HAMEG service will be at your disposal for any repairs.

Return material authorization (RMA):

Prior to returning an instrument to HAMEG, ask for a RMA
number either by internet (http://www.hameg.com) or fax (+49
(0) 6182 800 501). If you do not have an original shipping carton,
you may obtain one by calling the HAMEG service dept (+49 (0)
6182 800 500) or by sending an email to [e-mail].

1.6. Maintenance

Clean the outer case using a dust brush at regular intervals.
Dirt can be removed from housing, handle, all metal and plastic
parts using a cloth moistened with water and 1 % detergent.
Greasy dirt may be removed with benzene (petroleum ether) or
alcohol. Thereafter wipe the surfaces with a dry cloth. Plastic
parts should be treated with a suitable antistatic solution. No
fl uid may enter the instrument. Do not use other cleansing
agents as they may adversely affect the plastic or lacquered
surfaces.

The holder with the new fuse can then be pushed back in place
against the spring. It is prohibited to ”repair“ blown fuses or to
bridge the fuse. Any damages incurred by such measures will
void the warranty.

Type of fuse:

Size 5 x 20 mm; 250V~, C; IEC 127, Bl. III; DIN 41 662 (or DIN 41
571, Bl. 3). Cut off: slow blow (T) 2A.

Fuse Mains input connector Interface

1.7. CAT I

This oscilloscope is destined for measurements in circuits not
connected to the mains or only indirectly. Direct measurements,
i.e. with a galvanic connection to circuits corresponding to the
categories II, III, or IV are prohibited! The measuring circuits
are considered not connected to the mains if a suitable isolation
transformer fulfi lling safety class II is used. Measurements
on the mains are also possible if suitable probes like current
probes are used which fulfi ll the safety class II. The measure­ment category of such probes must be checked and observed.
The measurement categories were derived corresponding to
the distance from the power station and the transients hence to
be expected. Transients are short, very fast voltage or current
excursions which may be periodic or not.

Measurement CAT IV: Measurements close to the power station,
e.g. on electricity meters

Measurement CAT III: Measurements in the interior of buildings
(power distribution installations, mains outlets, motors which
are permanently installed).

Measurement CAT II: Measurements in circuits directly con­nected to the mains (household appliances, power tools etc).

Measurement CAT I: Electronic instruments and circuits which
contain circuit breakers or fuses.

Type of fuse

1.8. Mains voltage

The instrument has a wide range power supply from 105 to
253 V, 50 or 60 Hz ±10%. There is hence no line voltage selector.
The line fuse is accessible on the rear panel and part of the line
input connector. Prior to exchanging a fuse, the line cord must
be pulled out. Exchange is only allowed if the fuse holder is
undamaged. It can be taken out using a screwdriver put into the
slot. The fuse can be pushed out of its holder and exchanged.

Subject to change without notice

7

Introduction

SCALE

VOLTS / DIV

Y-POSITION

CHANNEL CONTROL

FINE

6

2

-

K

3

0

4

-

1

1

5

0

-

1

.

0

MENU

CH1

CH2

CH3

POD1

MATH

REF

X Y

CH4

POD2

CURSOR/MENU ANALYZE GENERAL

CURSOR

SELECT

CURSOR

MODE

AUTO

MEASURE

SCROLL

BAR

CURSOR

MEASURE

FFT

QUICK

VIEW

DISPLAY

AUTO

SET

SETUP HELP

SAVE

RECALL

INTENS

PERSIST

FILE

PRINT

USB STICK

HMO 3524

HMO 3524

350 MH z / 4 GSa / 2 MB DIGI TAL OSCIL LOSCOP E

350 MH z / 4 GSa / 2 MB DIGI TAL OSCIL LOSCOP E

POD 2 (15..8) POD 1 (7..0)

LOGIC CHANNELS REM CH 1

Use recommended probes only!

!!

54

PROBE ADJUST

1 kHz / 1 MHz

ca. 0.2 Vpp

Made in

Germany

1

2

CURSOR/MENU ANALYZE GENERAL

CURSOR

SELECT

SCROLL

BAR

CHANNEL CONTROL HORIZONTALTRIGGER

X Y

SCALE

VOLTS / DIV

K

3

-

0

2

4

6

-

1

1

5

0

-

1

.

0

MENU

CH 2 CH 3 CH 4

1MΩ II 13pF

max.

200 Vp

CH1

CH2

CH3

POD1

CH4

POD2

MATH

REF

≤5V RMS

A

CURSOR

INTENS

PERSIST

CURSOR

MEASURE

50Ω

!

CAT I

MODE

FFT

QUICK

VIEW

AUTO

MEASURE

LEVELY-POSITION X-POSITION

AUTO

SINGLE

NORM

TRIG’d SLOPE

SLOPE

TYPE

SOURCE

FILTER

RECALL

SETUP HELP

DISPLAY

SET
CLR

RUN
STOP

M

1MΩ II 13pF

max.

200 Vp

SAVE

E

M

SCALE

TIME / DIV

O

R

Y

ACQUIRE

MENU

TB/ZFINE

AUTO

SET

FILE

PRINT

Fig. 2.1: Frontview of the HMO3524

2 Familiarize yourself with your new HAMEG
Digital Storage Oscilloscope

2.1. Front view

The following controls and inputs/outputs are located on the
front: Power switch
connectors of the analog inputs

50

output

51 52

LED

, the connectors for the optional logic probes HO3508

, a USB port for USB sticks 53 , the TFT screen 54 and the

49

for showing activity on the remote interface.

1

, the control panel 2, A,B,C,D, the BNC

45

to 48, the probe adjustment

Please note, the connectors for the active logic

probes HO3508

51 52

are solely for theses probes.

Connecting anything else could destroy the inputs!

2.2. Control panel

The controls on the front panel allow direct access to the most
important functions; all extended functions are available via the
menu structure by using the grey soft keys. The power switch

1

is clearly set apart by its red colour. The most important
controls are backlighted by coloured LEDs in order to imme­diately indicate the actual settings. The panel is subdivided in
these four areas:

9

10

6

8

7

12 13

11 14

A

3

5

A

Area

Fig. 2.2:
Area A of the
control panel.

8

Subject to change without notice

4

49

48 47 46 4550515253

B C D

This area encompasses these three portions: CURSOR/MENU
– ANALYZE – GENERAL.

In the portion CURSOR/MENU you fi nd the cursor functions

6 8

, the general cursor select and adjustment knob 4, the

Intensity/Persistence key

7

, and the key for the selection of

virtual screen.

The portion ANALYZE allows direct selection of FFT
the Quick-view mode

10

(all important parameters of the ac-

tual signal display), and the „Automeasure“ function

9

displays,

11

for the

automatic measurement of parameters.

The portion headed GENERAL comprises the following keys:
SAVE/RECALL

12

for saving and recalling instrument settings,
reference signals, signals, screen displays, and sets of for­mulae, HELP
settings, AUTOSET
settings (e.g. the language), FILE/PRINT

B

Area

In the portion CHANNEL CONTROL
you fi nd all controls of the analog
channels such as the position con­trol knob

19

key

15

16

, the vertical gain adjustment

20

knob
tions key

22

to 25, (the two-channel version
HMO3522 has only
also serve as the selection keys for

17

Fig. 2.3: Area B of the
control panel.

16

, DISPLAY 14 for access to the general display

15

, SETUP 13 for access to the general

:

18

, the XY mode select

, the extended menu func-

21

, the channel select keys

22 23

) which

17

.

B

22

18

23

19

24

25

20

26

21

27

Introduction

LEVEL

TRIGGER

TRIG’d SLOPE

AUTO

NORM

TYPE

SOURCE

FILTER

SLOPE

SINGLE

SCALE

TIME / DIV

X-POSITION

HORIZONTAL

TB/Z

M

E

M

O

R

Y

MENU

ACQUIRE

RUN

STOP

SET
CLR

the optional logic probes 24 25. There are also the mathematics

26

function key

C

Area

This area TRIGGER of the control

and the reference signal settings key 27.

:

C

panel offers all functions for the
adjustment of the trigger level
, the selection of auto or normal
trigger
trigger source

29

, the trigger type 31, the

32

, single sweep
, the trigger slope 34, the trigger
signal fi lters

36

. In addition, the-

re are status indicators showing

28

33

28

29

30

33

34

whether a signal fulfi lls the trigger
conditions
selected

Area

The keys

30

and which slope was

34

.

D

:

37 38 39

on this control

panel area HORIZONTAL allow to

31

32

Fig. 2.4: Area C of the
control panel

35

36

shift the trigger position horizontal­ly, either step-by-step or using the
smaller one of the knobs. The back­lighted key

39

controls the run or
stop modes; the key will light up red
in stop mode. The key
the zoom function, the key

40

activates

44

the
selection of the acquisition modes,
the key
base menus. The knob

42

the access to the time

43

allows to

D

37

38

37

39

41

42

adjust the time base speed.
To the left of the control panel there
are the soft keys

2

which control the

menu functions.

2.3. Screen

The HMO is equipped with a 6.5“
(16.5 cm) LED backlighted colour

40

Fig. 2.5: Area D
of the control panel

43

44

TFT display with VGA resolution (640
x 480 pixels). In normal mode (no menus shown) there are 12
divisions in X direction. If menus are shown, this will be redu­ced to 10 divisions. On the left of the screen area little arrows
[1] indicate the reference potentials of the channels. The line
above the graticule contains status and settings information
such as the time base speed, the trigger delay and other trigger
conditions, the actual sampling rate, and the acquisition mode
[2]. On the right of the graticule a short menu is shown which

contains the most important settings of the channel actually
being displayed; these may be selected using the soft keys [3].
Below the graticule, measurement results of parameters and
cursors, the settings of the activated vertical channels, of the
reference signal, and of the mathematically derived curves [4]
are shown. Within the graticule, the signals of the selected chan­nels are displayed. Normally, 8 vertical divisions are shown; it
can be virtually extended to 20 divisions which can be displayed
using the SCROLL BAR knob

5

.

2.4. Rear view

On the rear panel there are the mains connector [1], the re­ceptacle for the interface modules [2] (USB / RS-232, Ethernet,
IEEE-488), the standard DVI connector [3] for the connection
of external monitors and projectors, the BNC connector for
the Y output [4] (of the channel selected for triggering) and the
external trigger input [5]. With the two-channel models this
connector is located on the front panel.

[1] [2] [2]

[5] [4] [3]

Fig. 2.7: Rear panel of the HMO3524

2.5. Options

The HMO352x series instruments offer some options which
allow you to extend the areas of application considerably. The
following interface modules are available and may be installed
by the customer in the rear receptacle:
– HO740 (IEEE-4888, GPIB, galvanically isolated)
– HO730 (combination of Ethernet and USB with integrated

web server)

All HMO 352x series instruments are prepared for mixed­signal operation and have the appropriate connectors on the
front panel. Each of these connectors can be connected to an
8-channel logic probe HO3508, hence a maximum of 16 logic
channels is possible. More available options are the passive
500MHz slimline10:1 probes HZ355, the 19inch rack kit HZ46
and the carrying bag HZ99.

Fig. 2.6: Screen

2.6. General concept of instrument operation

HAMEG oscilloscopes are renowned for easy operation, based
on a few basic principles which repeat with the diverse settings
and functions.

– Such keys which do not open a soft menu (e.g. Quickview)

switch a function on, pushing the key again will switch the
function off.

– Such keys which call a specifi c function (e.g. FFT) which

in turn can call or require more settings will activate the
function upon the fi rst touch. Pushing the key a second time
will call the soft menu (sub menu) for the settings. Pushing
the key a third time will deactivate the function.

Subject to change without notice

9

Introduction

– Such keys which open a soft menu upon the fi rst touch will

close it upon pushing a second time.

– The universal knob is used in the diverse menus either for

selecting numbers or submenus.

– The key MENU OFF below the soft menu keys closes the

present menu or it switches to the next higher level.

– If a channel is deactivated, pushing the respective channel

key will switch it on. If a channel was already activated
earlier, selecting another channel will change operation
to the channel whose key was pushed (its LED lights up). If
a channel is already selected, pushing its lighted key will
deactivate the channel and select the next channel according
to this sequence: CH1 > CH2 > CH3 > CH4.

– If cursor measurements are activated, the „CURSOR SE-

LECT“ key will select the cursor which can be moved with
the universal knob. In all menus for alpha-numeric inputs
and at the fi lemanager the knob is used to select or confi rm
entries.

The following describes some frequently used navigation ele­ments in the soft menus.

In the Fig. 2.8 there are two basic soft menu elements for choosing
something are shown. To select from the fi rst three you just need
to press the soft key beside and the element is active (shown as
blue color). A second kind of selecting is shown on the lower two
menu entries. Pressing the respective soft key toggles between
the two choices, again the active selection is marked blue.

The menus are used as shown in Fig. 2.9 if they concern func­tions which have either to be switched on or where values have
to set. The choice is between OFF and the value presented. The
round arrow in the right corner of the menu window points to
the universal knob which is to be used for selecting the value. If
there is a lower menu level, this will be indicated by a small tri­angle in the right lower corner of the respective menu point.

If there are further pages on the same level, the lowest menu
point will be used for navigation. It shows the number of menu
pages on this level as well as the activated number of pages.
Pushing the respective soft menu key will advance by one page,
after the last page the fi rst one will follow.

2.7. Basic setting and integrated help

Basic settings like language for user interface and help, mis­cellaneous settings and interface settings can be set using
the menu which opens after pressing the SETUP key in the
GENERAL area of the control panel

Fig. 2.10: Menu for basic settings

On the fi rst page you can set the user interface and help langu­age by pressing the soft key LANGUAGE and select German or
English. (Complete support for French and Spanish for the help
function will be implemented latest in fi rmware 2.0.)

The soft key beside MISC opens a menu with the following
selections:
– MENU OFF (choose manual or automatic with time limit of

4s up to 30 s for closing soft menus)

– TIME REFERENCE (position for reference of the trigger time,

choose from -5/DIV up to +5/DIV, 0/DIV is in the middle of

the screen and set as standard)
– DATE & TIME (opens menu to set date and time)
– SOUND (opens menu to set any combination of beep for

control, error and/or trigger)
– DEVICE NAME (menu to set a name for the HMO352x, ma-

ximum of 19 characters are allowed, the name will appear

in Screenshot‘s)
– DEVICE INFOS (opens a window with detailed information

about hardware and software of your HMO352x)

Fig. 2.8: Selection of basic soft
menu elements

10

Subject to change without notice

Fig. 2.9: Basic soft menu
elements for settings and
navigation

The next menu entry INTERFACE lets you select the interface
you are using (USB and RS-232 are standard) and possible
settings for that interface.

The last menu entry PRINTER shows all settings for postscript
printer; beginning with fi rmware 2.0 there will be also support
for other compatible printer.

At the second page of the basic menu you fi nd the menu for
fi rmware and help update, which is explained in detail in the
next chapter. The last menu item is the PROBE ADJUST.
Pressing the soft key leads you to the menu where you can set
whether the probe adjust output generates a rectangular signal
with 1 kHz or 1 MHz frequency. There is a setting AUTOMATIC
which means, that for timebase settings up to and including
50 μs/DIV the probe adjust output is 1 MHz, from 100 μs/DIV on
it is switched to 1 kHz.

The integrated help function can be activated by pressing the
key HELP in the GENERAL area of the control panel. A window
will open and the text inside is dynamically updated depending

Introduction

on the key (including softmenu key’s) you are pushing or the
knob you are turning. If you do not need the help anymore, you
can switch off the help window by pushing the “HELP” key. The
backlight of the key and the text window will be switched off.

2.8. Firmware- and help updates

The HMO352x series is being improved continuously. You are
invited to download the most recent fi rmware under www.
hameg.com/hmo3524. Firmware and help are packed into one
ZIP data packet. After downloading the ZIP data unpack it into
an USB stick’s basic directory. Thereupon insert the stick into
the USB port of the oscilloscope and push the key SETUP in the
GENERAL area of the front panel. Choose page 2 in the menu,
if this has not been opened already. Here you shall fi nd the
menu item UPDATE. After selecting this menu item a window
will open which displays the actual fi rmware version indicating
the version number, the date and build information.

If you intend to update the help function or add a help language
choose HELP in the updating menu.

The information window will now display the languages instal­led, the date, and the information about the languages available
on the stick. With the soft menu, languages may be added,
removed or updated. Please note the format of the date:YYYY­MM-DD according to the multi language norm of ISO 8601.

Fig: 2.11: Updating menu and information window

Now choose which to update: the fi rmware or the help function.
If both are to be updated it is recommended to fi rst update the
fi rmware. After you selected fi rmware updating by pushing
the appropriate key the respective date will be searched on
the stick, the information of the fi rmware to be updated from
the stick will be displayed below the line NEW. In case the new
fi rmware should be identical to the existing one, the number
of the version will be shown in red, otherwise it will be shown
in green; only then should you activate the updating by pushing
the soft key EXECUTE.

Fig. 2.12: Menu and information display of the help updating

Subject to change without notice

11