Hameg HMO Series User manual

250/350 MHz
Digital Oscilloscope
HMO Series
Manual
English

2Subject to change without notice
General information regarding the CE marking
HAMEG instruments fulll 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 in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 and
conditions regarding emission and immunity should be observed:
1. Data cables
For the connection between instrument interfaces and external devices,
(computer, printer etc.) suf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 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 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. Inuence on measuring instruments
Under the presence of strong high frequency electric or magnetic
elds, even with careful setup of the measuring equipment, in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
specications may result from such conditions in individual cases.
4. RF immunity of oscilloscopes.
4.1 Electromagnetic RF eld
The inuence of electric and magnetic RF elds may become visible
(e.g. RF superimposed), if the 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 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 amplier stage is higher than the total –3dB bandwidth of the
oscilloscope, the inuence of RF 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 TFT, which is unavoidable. These
effects can also be caused by direct or indirect electrostatic discharge.
HAMEG Instruments GmbH
General information regarding the CE marking
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
DECLARATION DE CONFORMITE
Hersteller HAMEG Instruments GmbH
Manufacturer Industriestraße 6
Fabricant D-63533 Mainhausen
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: HMO2524, HMO3524, HMO3522
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)
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
uctuations and icker / Fluctuations de tension et du icker.
Datum / Date / Date
11. 01. 2010
Unterschrift / Signature / Signatur
Holger Asmussen
General Manager

3
Subject to change without notice
General information regarding the CE marking 2
350 MHz Digital Oscilloscope HMO3522 / HMO3524 4
Speci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 7
1.5. Warranty and repair 7
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 10
2.7 Basic settings and integrated help 10
2.8 Bus Signal Source 11
2.9 Updates for the instrument settings and 11
  
2.10 Upgrade with software options 11
3 A quick introduction 13
3.1 Setting up and turning the instrument on 13
3.2 Connection of a probe and signal capture 13
3.3 Display of signal details 13
3.4 Cursor measurements 14
3.5 Automatic measurements 14
3.6 Mathematical functions 15
3.7 Storing data 15
4 Vertical system 17
4.1 Coupling 17
4.2 Sensitivity, Y-Positioning, and Offset 17
4.3 Bandwidth Limit and Signal Inversion 18
4.4 Probe attenuation selection 18
5 Horizontal System (Time Base) 18
5.1 Capturing modes RUN and STOP 18
5.2 Time base adjustments 18
5.3 Capture modes 18
5.4 ZOOM function 19
5.5 Marker function 19
6 Trigger System 20
6.1 Trigger modes Auto, Normal, Single 20
6.2 Trigger sources 20
6.3 Slope trigger 20
6.4 Pulse trigger 21
6.5 Video trigger 21
7 Display of signals 22
7.1 Display settings 22
7.2 Use of the virtual screen area 22
7.3 Signal intensity and persistence functions 22
7.4 XY display 23
8 Measurements 24
8.1 Cursor measurements 24
8.2 Auto measurements 24
9 Analysis 26
9.1 Quick mathematics 26
9.2 Formula editor 27
9.3 Frequency analysis (FFT) 28
9.4 Quickview measurements 28
9.5 PASS/FAIL test based on masks 29
10 Documentation, storing and recalling 30
10.1 Instrument settings 30
10.2 References 30
10.3 Curves 31
10.4 Screenshots 32
10.5 Sets of formulas 32
  
11 Mixed Signal Operation 33
11.1 Logic trigger 33
11.2 Display functions of the logic channels 33
11.3 Cursor measurements for the logic channels 34
12 Serial bus analysis 35
12.1 I2C bus 35
12.2 I2 
12.3 I2C bus triggering 36
12.4 SPI bus 36
  
12.6 SPI bus triggering 37
12.7 UART/RS-232 bus 37
  
12.9 UART/RS-232 bus triggering 38
13 Remote control via interface 39
13.1 RS-232 39
13.2 USB 39
  
  
14 Appendix 40
14.1 List of pictures 40
14.2 Glossary 40
ContentsGeneral information regarding the CE marking

4Subject to change without notice
HMO3524 / HMO3522
HMO3524
8 Channel
logic probe HO3508
R4GSa/s Real time, 50GSa/s Random sampling,
low noise flash A/D converter (reference class)
R4MPts memory, memory oom up to 100,000:1
RMSO (Mixed Signal Opt. HO3508/HO3516) with 8/16 logic channels
RSerial bus trigger and hardware accelerated decode,
I2C, SPI, UART/RS-232 (Opt. HOO10)
R8 user definable marker for easy navigation
RPass/Fail Test based on masks
RVertical sensitivity 1mV/div., Offset control ±0.2...±20V
R12div. x-axis display range, 20div. y-axis display range
(VirtualScreen)
RTrigger modes: slope, video, pulsewidth, logic, delayed, event
R6 digit counter, automeasurement, formula editor, ratiocursor,
FFT for spectral analysis
RCrisp 16.5cm (6.5”) TFT VGA display, DVI output
RLowest noise fan
R3x USB for mass storage, printer and remote control
optional IEEE-488 or Ethernet/USB
350MHz 2/4 Channel Digital Oscilloscope
HMO3522/HMO3524
Carrying Case HZ99
Active Probe HZO30

5
Subject to change without notice
HMO3524 / HMO3522 Technische Daten
350MHz 2 [4] Channel Digital Oscilloscope
HMO3522 [HMO3524]
All data valid at 23°C after 30 minute warm-up
Display
Display: 16.5cm (6.5”) VGA Color TFT
Resolution: 640 x 480 Pixel
Backlight: LED 400cd/m2
Display area for curves:
without menu 400 x 600 Pixel (8 x 12 div.)
with menu 400 x 500 Pixel (8 x 10div.)
Color depth: 256 colors
Intensity steps per channel: 0…31
Vertical System
Channels:
DSO mode CH 1, CH 2 [CH 1...CH 4]
MSO mode CH 1, CH 2, LCH 0...15 (logic channels)
with 2x Option HO3508
Auxiliary input: Frontside [Rear side]
Function Ext. Trigger
Impedance 1MΩ || 13pF ±2 pF
Coupling DC, AC
Max. input voltage 100V (DC + peak AC)
XYZ-mode: All analog channels on individual choise
Invert: CH 1, CH 2 [CH 1...CH 4]
Y-bandwidth (-3dB): 350MHz (5mV...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
CH 1, CH 2 [CH 1...CH 4] 1mV/div.…5V/div. (1–2–5 Sequence)
Variable Between calibrated steps
Inputs CH 1, CH 2 [CH 1…CH 4]:
Impedance 1MΩ II 13pF ±2 pF (50 Ω switchable)
Coupling DC, AC, GND
Max. input voltage 200V (DC + peak AC), 50Ω <5Vrms
Measuring circuits: Measuring Category I (CAT I)
Position range ±10Divs
Offset control:
1mV, 2mV ±0.2V
5…50mV ±1V
100mV…5V ±20V
Logic channels With Option HO3508
Select. switching thresholds TTL, CMOS, ECL, 2x User -2…+8 V
Impedance 100kΩ || <4pF
Coupling DC
Max. input voltage 40V (DC + peak AC)
Triggering
Analog channels:
Automatic: Linking of peakdetection and triggerlevel
Min. signal height 0.8div; 0.5div typ.
Frequency range 5Hz…400MHz
Level control range From peak- to peak+
Normal (without peak):
Min. signal height 0.8div; 0.5div typ.
Frequency range 0…400MHz
Level control range -10...+10div.
Operating modes: Slope/Video/Logic/Pulse/Busses (optional)
Slope: Rising, falling, both
Sources: CH 1, CH 2, Line, Ext., LCH 0…15
[CH 1...CH 4, Line, Ext., LCH 0…15]
Coupling: AC: 5Hz...400MHz
DC: 0...400MHz
HF: 30kHz...400MHz
LF: 0...5kHz
Noise rejection: 100 MHz LPF switchable
Video:
Standards PAL, NTSC, SECAM, PAL-M, SDTV 576i,
HDTV 720p, HDTV 1080i, HDTV 1080p
Fields Field 1, field 2, both
Line All, selectable line number
Sync. Impulse Positive, negative
Source CH 1, CH 2, Ext. [CH 1...CH 4]
Logic: AND, OR, TRUE, FALSE
Source LCH 0…15
State LCH 0…15 X, H, L
Indicator for trigger action: LED
Ext. Trigger via: Auxiliary input 0,3V…10Vss
2nd Trigger:
Slope Rising, falling, both
Min. signal height 0.8div.; 0.5div. typ.
Frequency range 0…400MHz
Level control range -10...+10div.
Operating modes:
after time 20ns…0.1s
after incidence 1…216
Busses (Opt. HOO10): I2C/SPI/UART/RS-232
Source LCH 0...LCH 15
Format hexadecimal, binary
I2CTrigger on Start, Stop, Restart, ACK, NACK,
Adress (7 or 10Bit), Data, Adress and Data,
up to 10Mb/s
SPI up to 32Bit Data, Chip select (CS) pos.
or neg., without CS, up to 25Mb/s
UART/RS-232 up to 8Bit Data, up to 62.5Mb/s
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 1 ns/div.…20ms/div.
Roll operating modes 50ms/div.…50s/div.
Digital Storage
Sampling rate (real time): 2x 2GSa/s, 1x 4GSa/s
[4x 2GSa/s, 2x 4GSa/s]
Logic channels: 16x 1GSa/s
Sampling rate (random):50GSa/s (n/a to logic channels)
Memory: 2x 2MPts, 1x 4MPts [4x 2MPts, 2x 4MPts]
Operation modes: Refresh, Average, Envelope, Peak-Detect
Roll: free run/triggered, Smooth
Resolution (vertical) 8Bit
Resolution (horizontal)
Yt Mode 50Pts./div.
XY Mode 8Bit
Interpolation: Sinx/x (CH 1...CH 4), Pulse (LCH 0...15)
Persistence: Off, 50ms...∞
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,
Vpp, Vp+, Vp-, Vrms, Vavg, Vtop, Vbase, twidth+, twidth-,
tdutycycle+, tdutycycle, trise, tfall
pos. edge count, neg. edge count,
pos. pulse count, neg. pulse count
Cursor measurements: ∆V, ∆t, 1/∆t (f), V to Gnd, Vt related to
Trigger point, ratio X and Y, pulse count,
peak to peak, peak+, peak-
Interface: Dual-Interface USB/RS-232 (HO720)
USB-Stick (frontside)
USB-Printer (rear side) for Postscript Printer
DVI-D for ext. monitor
Optional: IEEE-488 (HO740), Ethernet/USB (HO730)
Display functions
Marker: up to 8 user definable marker for easy
navigation
VirtualScreen: virtual Display with 20div. vertical for all
Math-, Logic-, Bus- and Reference Signals
Busdisplay: up to 2 busses, user definable, parallel or
serial busses (option), decode of the bus
value in ASCII, binary, decimal or
hexadecimal, up to 4 lines
Parallel logic channels can also be used as source
for bus definition
I2C
(Opt. HOO10)
color coded Read- , Write Adress, Data,
Start, Stop, missing acknowledge, Errors
and Trigger condition
350MHz 2 [4] Channel Digital Oscilloscope
HMO3522 [HMO3524]
All data valid at 23°C after 30 minute warm-up
Display
Display: 16.5cm (6.5”) VGA Color TFT
Resolution: 640 x 480 Pixel
Backlight: LED 400cd/m2
Display area for curves:
without menu 400 x 600 Pixel (8 x 12 div.)
with menu 400 x 500 Pixel (8 x 10div.)
Color depth: 256 colors
Intensity steps per channel: 0…31
Vertical System
Channels:
DSO mode CH 1, CH 2 [CH 1...CH 4]
MSO mode CH 1, CH 2, LCH 0...15 (logic channels)
with 2x Option HO3508
Auxiliary input: Frontside [Rear side]
Function Ext. Trigger
Impedance 1MΩ || 13pF ±2 pF
Coupling DC, AC
Max. input voltage 100V (DC + peak AC)
XYZ-mode: All analog channels on individual choise
Invert: CH 1, CH 2 [CH 1...CH 4]
Y-bandwidth (-3dB): 350MHz (5mV...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
CH 1, CH 2 [CH 1...CH 4] 1mV/div.…5V/div. (1–2–5 Sequence)
Variable Between calibrated steps
Inputs CH 1, CH 2 [CH 1…CH 4]:
Impedance 1MΩ II 13pF ±2 pF (50 Ω switchable)
Coupling DC, AC, GND
Max. input voltage 200V (DC + peak AC), 50Ω <5Vrms
Measuring circuits: Measuring Category I (CAT I)
Position range ±10Divs
Offset control:
1mV, 2mV ±0.2V
5…50mV ±1V
100mV…5V ±20V
Logic channels With Option HO3508
Select. switching thresholds TTL, CMOS, ECL, 2x User -2…+8 V
Impedance 100kΩ || <4pF
Coupling DC
Max. input voltage 40V (DC + peak AC)
Triggering
Analog channels:
Automatic: Linking of peakdetection and triggerlevel
Min. signal height 0.8div; 0.5div typ.
Frequency range 5Hz…400MHz
Level control range From peak- to peak+
Normal (without peak):
Min. signal height 0.8div; 0.5div typ.
Frequency range 0…400MHz
Level control range -10...+10div.
Operating modes: Slope/Video/Logic/Pulse/Busses (optional)
Slope: Rising, falling, both
Sources: CH 1, CH 2, Line, Ext., LCH 0…15
[CH 1...CH 4, Line, Ext., LCH 0…15]
Coupling: AC: 5Hz...400MHz
DC: 0...400MHz
HF: 30kHz...400MHz
LF: 0...5kHz
Noise rejection: 100 MHz LPF switchable
Video:
Standards PAL, NTSC, SECAM, PAL-M, SDTV 576i,
HDTV 720p, HDTV 1080i, HDTV 1080p
Fields Field 1, field 2, both
Line All, selectable line number
Sync. Impulse Positive, negative
Source CH 1, CH 2, Ext. [CH 1...CH 4]
Logic: AND, OR, TRUE, FALSE
Source LCH 0…15
State LCH 0…15 X, H, L
Indicator for trigger action: LED
Ext. Trigger via: Auxiliary input 0,3V…10Vss
2nd Trigger:
Slope Rising, falling, both
Min. signal height 0.8div.; 0.5div. typ.
Frequency range 0…400MHz
Level control range -10...+10div.
Operating modes:
after time 20ns…0.1s
after incidence 1…216
Busses (Opt. HOO10): I2C/SPI/UART/RS-232
Source LCH 0...LCH 15
Format hexadecimal, binary
I2CTrigger on Start, Stop, Restart, ACK, NACK,
Adress (7 or 10Bit), Data, Adress and Data,
up to 10Mb/s
SPI up to 32Bit Data, Chip select (CS) pos.
or neg., without CS, up to 25Mb/s
UART/RS-232 up to 8Bit Data, up to 62.5Mb/s
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 1 ns/div.…20ms/div.
Roll operating modes 50ms/div.…50s/div.
Digital Storage
Sampling rate (real time): 2x 2GSa/s, 1x 4GSa/s
[4x 2GSa/s, 2x 4GSa/s]
Logic channels: 16x 1GSa/s
Sampling rate (random):50GSa/s (n/a to logic channels)
Memory: 2x 2MPts, 1x 4MPts [4x 2MPts, 2x 4MPts]
Operation modes: Refresh, Average, Envelope, Peak-Detect
Roll: free run/triggered, Smooth
Resolution (vertical) 8Bit
Resolution (horizontal)
Yt Mode 50Pts./div.
XY Mode 8Bit
Interpolation: Sinx/x (CH 1...CH 4), Pulse (LCH 0...15)
Persistence: Off, 50ms...∞
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,
Vpp, Vp+, Vp-, Vrms, Vavg, Vtop, Vbase, twidth+, twidth-,
tdutycycle+, tdutycycle, trise, tfall
pos. edge count, neg. edge count,
pos. pulse count, neg. pulse count
Cursor measurements: ∆V, ∆t, 1/∆t (f), V to Gnd, Vt related to
Trigger point, ratio X and Y, pulse count,
peak to peak, peak+, peak-
Interface: Dual-Interface USB/RS-232 (HO720)
USB-Stick (frontside)
USB-Printer (rear side) for Postscript Printer
DVI-D for ext. monitor
Optional: IEEE-488 (HO740), Ethernet/USB (HO730)
Display functions
Marker: up to 8 user definable marker for easy
navigation
VirtualScreen: virtual Display with 20div. vertical for all
Math-, Logic-, Bus- and Reference Signals
Busdisplay: up to 2 busses, user definable, parallel or
serial busses (option), decode of the bus
value in ASCII, binary, decimal or
hexadecimal, up to 4 lines
Parallel logic channels can also be used as source
for bus definition
I2C
(Opt. HOO10)
color coded Read- , Write Adress, Data,
Start, Stop, missing acknowledge, Errors
and Trigger condition
350MHz 2 [4] Channel Digital Oscilloscope
HMO3522 [HMO3524]
All data valid at 23°C after 30 minute warm-up
Display
Display: 16.5cm (6.5”) VGA Color TFT
Resolution: 640 x 480 Pixel
Backlight: LED 400cd/m2
Display area for curves:
without menu 400 x 600 Pixel (8 x 12 div.)
with menu 400 x 500 Pixel (8 x 10div.)
Color depth: 256 colors
Intensity steps per channel: 0…31
Vertical System
Channels:
DSO mode CH 1, CH 2 [CH 1...CH 4]
MSO mode CH 1, CH 2, LCH 0...15 (logic channels)
with 2x Option HO3508
Auxiliary input: Frontside [Rear side]
Function Ext. Trigger
Impedance 1MΩ || 13pF ±2 pF
Coupling DC, AC
Max. input voltage 100V (DC + peak AC)
XYZ-mode: All analog channels on individual choise
Invert: CH 1, CH 2 [CH 1...CH 4]
Y-bandwidth (-3dB): 350MHz (5mV...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
CH 1, CH 2 [CH 1...CH 4] 1mV/div.…5V/div. (1–2–5 Sequence)
Variable Between calibrated steps
Inputs CH 1, CH 2 [CH 1…CH 4]:
Impedance 1MΩ II 13pF ±2 pF (50 Ω switchable)
Coupling DC, AC, GND
Max. input voltage 200V (DC + peak AC), 50Ω <5Vrms
Measuring circuits: Measuring Category I (CAT I)
Position range ±10Divs
Offset control:
1mV, 2mV ±0.2V
5…50mV ±1V
100mV…5V ±20V
Logic channels With Option HO3508
Select. switching thresholds TTL, CMOS, ECL, 2x User -2…+8 V
Impedance 100kΩ || <4pF
Coupling DC
Max. input voltage 40V (DC + peak AC)
Triggering
Analog channels:
Automatic: Linking of peakdetection and triggerlevel
Min. signal height 0.8div; 0.5div typ.
Frequency range 5Hz…400MHz
Level control range From peak- to peak+
Normal (without peak):
Min. signal height 0.8div; 0.5div typ.
Frequency range 0…400MHz
Level control range -10...+10div.
Operating modes: Slope/Video/Logic/Pulse/Busses (optional)
Slope: Rising, falling, both
Sources: CH 1, CH 2, Line, Ext., LCH 0…15
[CH 1...CH 4, Line, Ext., LCH 0…15]
Coupling: AC: 5Hz...400MHz
DC: 0...400MHz
HF: 30kHz...400MHz
LF: 0...5kHz
Noise rejection: 100 MHz LPF switchable
Video:
Standards PAL, NTSC, SECAM, PAL-M, SDTV 576i,
HDTV 720p, HDTV 1080i, HDTV 1080p
Fields Field 1, field 2, both
Line All, selectable line number
Sync. Impulse Positive, negative
Source CH 1, CH 2, Ext. [CH 1...CH 4]
Logic: AND, OR, TRUE, FALSE
Source LCH 0…15
State LCH 0…15 X, H, L
Indicator for trigger action: LED
Ext. Trigger via: Auxiliary input 0,3V…10V
ss
2nd Trigger:
Slope Rising, falling, both
Min. signal height 0.8div.; 0.5div. typ.
Frequency range 0…400MHz
Level control range -10...+10div.
Operating modes:
after time 20ns…0.1s
after incidence 1…216
Busses (Opt. HOO10): I2C/SPI/UART/RS-232
Source LCH 0...LCH 15
Format hexadecimal, binary
I2CTrigger on Start, Stop, Restart, ACK, NACK,
Adress (7 or 10Bit), Data, Adress and Data,
up to 10Mb/s
SPI up to 32Bit Data, Chip select (CS) pos.
or neg., without CS, up to 25Mb/s
UART/RS-232 up to 8Bit Data, up to 62.5Mb/s
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 1 ns/div.…20ms/div.
Roll operating modes 50ms/div.…50s/div.
Digital Storage
Sampling rate (real time): 2x 2GSa/s, 1x 4GSa/s
[4x 2GSa/s, 2x 4GSa/s]
Logic channels: 16x 1GSa/s
Sampling rate (random):50GSa/s (n/a to logic channels)
Memory: 2x 2MPts, 1x 4MPts [4x 2MPts, 2x 4MPts]
Operation modes: Refresh, Average, Envelope, Peak-Detect
Roll: free run/triggered, Smooth
Resolution (vertical) 8Bit
Resolution (horizontal)
Yt Mode 50Pts./div.
XY Mode 8Bit
Interpolation: Sinx/x (CH 1...CH 4), Pulse (LCH 0...15)
Persistence: Off, 50ms...∞
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,
Vpp, Vp+, Vp-, Vrms, Vavg, Vtop, Vbase, twidth+, twidth-,
tdutycycle+, tdutycycle, trise, tfall
pos. edge count, neg. edge count,
pos. pulse count, neg. pulse count
Cursor measurements: ∆V, ∆t, 1/∆t (f), V to Gnd, Vt related to
Trigger point, ratio X and Y, pulse count,
peak to peak, peak+, peak-
Interface: Dual-Interface USB/RS-232 (HO720)
USB-Stick (frontside)
USB-Printer (rear side) for Postscript Printer
DVI-D for ext. monitor
Optional: IEEE-488 (HO740), Ethernet/USB (HO730)
Display functions
Marker: up to 8 user definable marker for easy
navigation
VirtualScreen: virtual Display with 20div. vertical for all
Math-, Logic-, Bus- and Reference Signals
Busdisplay: up to 2 busses, user definable, parallel or
serial busses (option), decode of the bus
value in ASCII, binary, decimal or
hexadecimal, up to 4 lines
Parallel logic channels can also be used as source
for bus definition
I2C
(Opt. HOO10)
color coded Read- , Write Adress, Data,
Start, Stop, missing acknowledge, Errors
and Trigger condition

6Subject to change without notice
Attention!
The HMO2524 is technically almost the same as the
HMO3524 except the following:
Bandwidth : 250MHz
Real Time Sample Rate: 4x 1,25GSa/s,
2x 2,5GSa/s
Logic-channel: 16 x 1,25GSa/s
Random Sampling: 25GSa/s
The complete technical datasheet of the HMO2524
you can nd in the internet at www.hameg.com.
1 Installation and safety instructions
1.1 Setting up the instrument
handle can be set into
different positions:
A and B = carrying
C = horizontal operating

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/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
  
electrical measuring, control and laboratory instruments and
was manufactured and tested accordingly. It left the factory in


In order to maintain this condition and to ensure safe opera-
tion the user is required to observe the warnings and other

all measuring terminals are connected to safety ground of the
mains. All accessible metal parts were tested against the mains
with 2200VDC. The instrument conforms to safety class I. The
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
E
D
C
A
B
A
B
C
D
E
F
G
Accessories supplied: Line cord, Operating manual, 2 [4]


Additional accessories
350MHz 2 [4] Channel Digital Oscilloscope
HMO3522 [HMO3524]
All data valid at 23°C after 30 minute warm-up
Display
Display: 16.5cm (6.5”) VGA Color TFT
Resolution: 640 x 480 Pixel
Backlight: LED 400cd/m2
Display area for curves:
without menu 400 x 600 Pixel (8 x 12 div.)
with menu 400 x 500 Pixel (8 x 10div.)
Color depth: 256 colors
Intensity steps per channel: 0…31
Vertical System
Channels:
DSO mode CH 1, CH 2 [CH 1...CH 4]
MSO mode CH 1, CH 2, LCH 0...15 (logic channels)
with 2x Option HO3508
Auxiliary input: Frontside [Rear side]
Function Ext. Trigger
Impedance 1MΩ || 13pF ±2 pF
Coupling DC, AC
Max. input voltage 100V (DC + peak AC)
XYZ-mode: All analog channels on individual choise
Invert: CH 1, CH 2 [CH 1...CH 4]
Y-bandwidth (-3dB): 350MHz (5mV...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
CH 1, CH 2 [CH 1...CH 4] 1mV/div.…5V/div. (1–2–5 Sequence)
Variable Between calibrated steps
Inputs CH 1, CH 2 [CH 1…CH 4]:
Impedance 1MΩ II 13pF ±2 pF (50 Ω switchable)
Coupling DC, AC, GND
Max. input voltage 200V (DC + peak AC), 50Ω <5Vrms
Measuring circuits: Measuring Category I (CAT I)
Position range ±10Divs
Offset control:
1mV, 2mV ±0.2V
5…50mV ±1V
100mV…5V ±20V
Logic channels With Option HO3508
Select. switching thresholds TTL, CMOS, ECL, 2x User -2…+8 V
Impedance 100kΩ || <4pF
Coupling DC
Max. input voltage 40V (DC + peak AC)
Triggering
Analog channels:
Automatic: Linking of peakdetection and triggerlevel
Min. signal height 0.8div; 0.5div typ.
Frequency range 5Hz…400MHz
Level control range From peak- to peak+
Normal (without peak):
Min. signal height 0.8div; 0.5div typ.
Frequency range 0…400MHz
Level control range -10...+10div.
Operating modes: Slope/Video/Logic/Pulse/Busses (optional)
Slope: Rising, falling, both
Sources: CH 1, CH 2, Line, Ext., LCH 0…15
[CH 1...CH 4, Line, Ext., LCH 0…15]
Coupling: AC: 5Hz...400MHz
DC: 0...400MHz
HF: 30kHz...400MHz
LF: 0...5kHz
Noise rejection: 100 MHz LPF switchable
Video:
Standards PAL, NTSC, SECAM, PAL-M, SDTV 576i,
HDTV 720p, HDTV 1080i, HDTV 1080p
Fields Field 1, field 2, both
Line All, selectable line number
Sync. Impulse Positive, negative
Source CH 1, CH 2, Ext. [CH 1...CH 4]
Logic: AND, OR, TRUE, FALSE
Source LCH 0…15
State LCH 0…15 X, H, L
Indicator for trigger action: LED
Ext. Trigger via: Auxiliary input 0,3V…10Vss
2nd Trigger:
Slope Rising, falling, both
Min. signal height 0.8div.; 0.5div. typ.
Frequency range 0…400MHz
Level control range -10...+10div.
Operating modes:
after time 20ns…0.1s
after incidence 1…216
Busses (Opt. HOO10): I2C/SPI/UART/RS-232
Source LCH 0...LCH 15
Format hexadecimal, binary
I2CTrigger on Start, Stop, Restart, ACK, NACK,
Adress (7 or 10Bit), Data, Adress and Data,
up to 10Mb/s
SPI up to 32Bit Data, Chip select (CS) pos.
or neg., without CS, up to 25Mb/s
UART/RS-232 up to 8Bit Data, up to 62.5Mb/s
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 1 ns/div.…20ms/div.
Roll operating modes 50ms/div.…50s/div.
Digital Storage
Sampling rate (real time): 2x 2GSa/s, 1x 4GSa/s
[4x 2GSa/s, 2x 4GSa/s]
Logic channels: 16x 1GSa/s
Sampling rate (random):50GSa/s (n/a to logic channels)
Memory: 2x 2MPts, 1x 4MPts [4x 2MPts, 2x 4MPts]
Operation modes: Refresh, Average, Envelope, Peak-Detect
Roll: free run/triggered, Smooth
Resolution (vertical) 8Bit
Resolution (horizontal)
Yt Mode 50Pts./div.
XY Mode 8Bit
Interpolation: Sinx/x (CH 1...CH 4), Pulse (LCH 0...15)
Persistence: Off, 50ms...∞
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,
Vpp, Vp+, Vp-, Vrms, Vavg, Vtop, Vbase, twidth+, twidth-,
tdutycycle+, tdutycycle, trise, tfall
pos. edge count, neg. edge count,
pos. pulse count, neg. pulse count
Cursor measurements: ∆V, ∆t, 1/∆t (f), V to Gnd, Vt related to
Trigger point, ratio X and Y, pulse count,
peak to peak, peak+, peak-
Interface: Dual-Interface USB/RS-232 (HO720)
USB-Stick (frontside)
USB-Printer (rear side) for Postscript Printer
DVI-D for ext. monitor
Optional: IEEE-488 (HO740), Ethernet/USB (HO730)
Display functions
Marker: up to 8 user definable marker for easy
navigation
VirtualScreen: virtual Display with 20div. vertical for all
Math-, Logic-, Bus- and Reference Signals
Busdisplay: up to 2 busses, user definable, parallel or
serial busses (option), decode of the bus
value in ASCII, binary, decimal or
hexadecimal, up to 4 lines
Parallel logic channels can also be used as source
for bus definition
I
2
C
(Opt. HOO10)
color coded Read- , Write Adress, Data,
Start, Stop, missing acknowledge, Errors
and Trigger condition
HMO3522/3524E/080710 · C&E · Subject to change without notice · © HAMEG Instruments GmbH®· DQS-certified in accordance with DIN EN ISO 9001:2008, Reg.-No.: 071040 QM 08
HAMEG Instruments GmbH · Industriestr. 6 · D-63533 Mainhausen · Tel [phone] · Fax [phone] · www.hameg.com · [e-mail]
SPI
(Opt. HOO10)
color coded Read-, Write Adress, Data,
Start, Stop, Errors and Trigger condition
UART/RS-232
(Opt. HOO10)
color coded Read-, Write Adress, Data,
Start, Stop, Errors and Trigger condition
Mathematic functions
Number of formula sets: 5 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, INTG, DIFF, SQR, MIN, MAX, LOG, LN
Display: Up to 4 math. memories with label
Pass/Fail functions
Sources: Analog channels
Type of test: Mask around a signal, userdefined
tolerance
Functions: Stop, Beep, screen shot (screen print-out)
and/or output to printer for pass or fail, event
counting up to 4 billion, including the number
and the percentage of pass and fail events.
General Information
Probe ADJ Output: 1kHz/1MHz square wave signal ~0.2Vpp
(ta <4ns)
Internal RTC (Realtime clock):Date and time for stored data
Line voltage: 105...253V, 50/60Hz, CAT II
Power consumption: Max. 70 Watt at 230V, 50Hz
Protective system: Safety class I (EN61010-1)
Operating temperature: +5...+40°C
Storage temperature: -20...+70 °C
Rel. humidity: 5...80% (non condensing)
Dimensions (W x H x D):285 x 175 x 220mm
Weight: 3.6kg
Accessories supplied: Line cord, Operating manual, 2 [4] Probes,
10:1 with attenuation ID (HZ350), Dual-Interface USB/RS-232 (HO720), CD
Optional accessories:
HOO10 Serial bus trigger and hardware acelerated decode,
I2C, SPI, UART/RS-232 on Logic channels
HO3508 active 8 Channel Logic Probe
HO3516 2x HO3508, active 8 Channel Logic Probes
HO730 Dual-Interface Ethernet/USB
HO740 Interface IEEE-488 (GPIB) galvanically isolated
HZ355 Slimline Probe 10:1 with automatically identification
HZ355DU Upgrade from 2x HZ350 to 2x HZ355
HZ46 4RU 19‘‘ Rackmount Kit
HZO20 High Voltage probe 1000:1 (400MHz)
HZO30 single ended active probe (1GHz)
HZO50 AC/DC Currentprobe 20A, DC…100kHz
HZO51 AC/DC Currentprobe 1000A, DC…20kHz
additional accessories you can find at www.hameg.com/HMO3524
HMO3522/3524E/080710 · C&E · Subject to change without notice · © HAMEG Instruments GmbH®· DQS-certified in accordance with DIN EN ISO 9001:2008, Reg.-No.: 071040 QM 08
HAMEG Instruments GmbH · Industriestr. 6 · D-63533 Mainhausen · Tel [phone] · Fax [phone] · www.hameg.com · [e-mail]
SPI
(Opt. HOO10)
color coded Read-, Write Adress, Data,
Start, Stop, Errors and Trigger condition
UART/RS-232
(Opt. HOO10)
color coded Read-, Write Adress, Data,
Start, Stop, Errors and Trigger condition
Mathematic functions
Number of formula sets: 5 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, INTG, DIFF, SQR, MIN, MAX, LOG, LN
Display: Up to 4 math. memories with label
Pass/Fail functions
Sources: Analog channels
Type of test: Mask around a signal, userdefined
tolerance
Functions: Stop, Beep, screen shot (screen print-out)
and/or output to printer for pass or fail, event
counting up to 4 billion, including the number
and the percentage of pass and fail events.
General Information
Probe ADJ Output: 1kHz/1MHz square wave signal ~0.2Vpp
(ta <4ns)
Internal RTC (Realtime clock):Date and time for stored data
Line voltage: 105...253V, 50/60Hz, CAT II
Power consumption: Max. 70 Watt at 230V, 50Hz
Protective system: Safety class I (EN61010-1)
Operating temperature: +5...+40°C
Storage temperature: -20...+70 °C
Rel. humidity: 5...80% (non condensing)
Dimensions (W x H x D):285 x 175 x 220mm
Weight: 3.6kg
Accessories supplied: Line cord, Operating manual, 2 [4] Probes,
10:1 with attenuation ID (HZ350), Dual-Interface USB/RS-232 (HO720), CD
Optional accessories:
HOO10 Serial bus trigger and hardware acelerated decode,
I2C, SPI, UART/RS-232 on Logic channels
HO3508 active 8 Channel Logic Probe
HO3516 2x HO3508, active 8 Channel Logic Probes
HO730 Dual-Interface Ethernet/USB
HO740 Interface IEEE-488 (GPIB) galvanically isolated
HZ355 Slimline Probe 10:1 with automatically identification
HZ355DU Upgrade from 2x HZ350 to 2x HZ355
HZ46 4RU 19‘‘ Rackmount Kit
HZO20 High Voltage probe 1000:1 (400MHz)
HZO30 single ended active probe (1GHz)
HZO50 AC/DC Currentprobe 20A, DC…100kHz
HZO51 AC/DC Currentprobe 1000A, DC…20kHz
additional accessories you can find at www.hameg.com/HMO3524
Carrying positions
Operating positions
Removing the handle (Pos. F)
Stacking positions
Installation and safety instructions Installation and safety instructions

7
Subject to change without notice
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).
 
conforming to the minimum standards of post, rail or trans-

1.3 Correct operation
Please note: This instrument is only destined for use by perso-
nnel 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
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 trans-
port 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 con-
densation 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,

requires the horizontal or inclined position.
Do not obstruct the ventilation holes!


are average values.
1.5 Warranty and repair

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

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



Return material authorization (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,

6182 800 500) or by sending an email to [email protected].
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

agents as they may adversely affect the plastic or lacquered
surfaces.
1.7 CAT I
This oscilloscope is destined for measurements in circuits not
connected to the mains or only indirectly. Direct measure-
ments, 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
-
surements on the mains are also possible if suitable probes

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 con-
nected to the mains (household appliances, power tools etc).

contain circuit breakers or fuses.
1.8 Mains voltage
The instrument has a wide range power supply from 105 to
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

undamaged. It can be taken out using a screwdriver put into the
slot. The fuse can be pushed out of its holder and exchanged.
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.
Installation and safety instructions Installation and safety instructions

8Subject to change without notice
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
1
, the control panel
2
,
A
,
B
,
C
,
D
, the BNC
connectors of the analog inputs
45
to
48
, the probe adjustment
output
51
, the connectors for the optional 
52 53
, a USB port for USB sticks
54
, the TFT screen
55
and the

49
for showing activity on the remote interface. At the two

connector at right side.
Please note, the connectors for the active logic
probes HO3508
52 53
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
-
diately indicate the actual settings. The panel is subdivided in
these four areas:
Area
A
This area encompasses these three portions: 
–  – .
In the portion 
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  allows direct selection of FFT
9
displays,
the Quick-view mode
10
(all important parameters of the ac-
tual signal display), and the „Automeasure“ function
11
for the
automatic measurement of parameters.
The portion headed  comprises the following keys:

12
for saving and recalling instrument settings,
reference signals, signals, screen displays, and sets of for-

16
, DISPLAY
14
for
access to the general display set-
tings, 
15

13
for
access to the general settings (e.g.
the language), 
17
.
Area
B
:
In the area 
controls of the analog channels
such as the position control knob
18
, the XY mode select key
19
, the
vertical gain adjustment knob
20
,
3
A
5
15 16
811 14
910
6712 13 4
17
18
B
19
20
22
23
24
21
25
26
27
49
1
48 47 46 45525354
2
55 A
B C D
51 50
Introduction Introduction
Fig. 2.1: Frontview of the HMO2524
Fig. 2.3: Area B of the
control panel.
Fig. 2.2:
Area A of the
control panel.

9
Subject to change without notice
the extended menu functions key
21
, the channel select keys
22
to
25

22 23
) which
also serve as the selection keys for the optional logic probes
24 25
. There are also the mathematics function key
26
and the
reference signal settings key
27
.
Area
C
:
This area  of the control
panel offers all functions for the
adjustment of the trigger level
28
,
the selection of auto or normal
trigger
29
, the trigger type
31
, the
trigger source
32
, single sweep
33
, the trigger slope
34
, the trig-
ger signal filters
36
. In addition,
there are status indicators showing
trigger
conditions
30
and which slope was
selected
34
.
Area
D
:
The keys
37 38 39
on this control
panel area  allow to
shift the trigger position horizontal-
ly, either step-by-step or using the
smaller one of the knobs. The back-
lighted key
39
controls the run or
stop modes; the key will light up red
in stop mode. The key
40
activates
the zoom function, the key
44
the
selection of the acquisition modes,
the key
42
the access to the time
base menus. The knob
43
allows to
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

-
play 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 re-
sults of parameters and cursors, the settings of the activated
vertical channels, of the reference signal, and of the mathe-
matically 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 re-
ceptacle for the interface modules [2] (USB / RS-232, 
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. At the two channel

connector at the front of the instrument.
Fig. 2.7: Rear panel of the HMO2524
2.5 Options
MO 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:
 
 
web server)
mixed-signal
operation and have the appropriate connectors on the front




 
<-
rms

bandwidth and up to 1000 A, the 19“ rack-mount set

the instruments.
[1] [2] [2]
[5] [4] [3]
28
C
29
30
33
31
34
35
36
32
37
D
38
37
41
39
42
43
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40
Introduction
Fig. 2.4: Area C of the
control panel
Fig. 2.5: Area D
of the control panel
Fig. 2.6: Screen

10 Subject to change without notice
2.6 General concept of instrument operation

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.
   
in turn can call or require more settings will activate the

will call the soft menu (sub menu) for the settings. Pushing
the key a third time will deactivate the function.
 
close it upon pushing a second time.
– The universal knob is used in the diverse menus either for
selecting numbers or submenus.
– The key  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

a channel is already selected, pushing its lighted key will
deactivate the channel and select the next channel according
>>>
– If cursor measurements are activated, the -

the universal knob. In all menus for alpha-numeric inputs

entries.
The following describes some frequently used navigation ele-
ments in the soft menus.
In the Fig. 2.8 there are two basic soft menu elements for choosing

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 func-
tions 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,

2.7 Basic settings and integrated help
Basic settings like language for user interface and help, mis-
cellaneous settings and interface settings can be set using


Fig. 2.10: Menu for basic settings
user interface and help
language by pressing the -

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-
mum of 19 characters are allowed, the name will appear in
Screenshot‘s)
– DEVICE INFOS (opens a window with detailed information


you are using (USB and RS-232 are standard) and possible
settings for that interface.
    
printers. Pushing this softkey will open a submenu in which you
can select the paper format and the colour mode. If you choose
 
Introduction Introduction
Fig. 2.8: Selection of basic soft
menu elements
Fig. 2.9: Basic soft menu
elements for settings and
navigation