12
Subject to change without notice
F a m i l i a r i z e y o u r s e l f w i t h y o u r n e w H M O
2.4.1 DVI Connector
The rear panel of the oscilloscope includes a standard DVI-D
connector to connect external monitors and projectors. The
DVI-D connector can only send digital signals. This means it
is impossible to connect monitors or beamers via their analog
inputs. The HMO series yields a DVI signal with VGA resolution
(640x480). This design enables connectivity with all standard TFT
monitors. Modern flat screens extrapolate the signal, allowing
users to see a full screen.
Beamers can also be connected to the HMO. Ideal beamers
in this case are those designed to be connected to computers
/ notebooks as these are also able to process a 640x480 pixel
resolution.
DVI VGA or DVI composite adapters are not sup-
ported. To connect to current HDTVs via HDMI ad-
apter is problematic as most television sets expect
an HDTV signal of at least 720p as input signal.
2.4.2 Y-Output connector
All HMO-series oscilloscopes have an additional
BNC connector
(
Y-Output) on the rear panel which is used to passthrough and
output the analog signal of the triggered channel on the one
hand or to send alarm pulses when errors occur during mask
tests (PASS / FAIL) on the other hand (see chapter 9).
This can be very useful for longterm data-logging or if you want
to trigger mask-fails during automated production or testing
processes.
The output signal of the HMO702x...202x series
shows a small timeshift in the lower nano-seconds
time domain.
The level of that analog output signal is based on 200 mV/DIV
(100mV/DIV at 50 Ω) of the ADC (analog-digital-converter). The
following screenshot will show a 15 kHz sine wave with a 2V
amplitude: CH1 (yellow) original signal, CH2 (blue) Y-Out signal.
Fig. 2.8: Y-Out signal
2.5 Options
The HMO 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-488, GPIB, galvanically isolated)
– HO730 (combination of Ethernet and USB with integrated
web server)
All HMO series instruments are prepared for
mixed-signal
operation and have the appropriate connectors on the front
panel. Connecting an 8-channel
logic probe HO3508 equips
the scope with 8 logic channels. Further options are the pas
-
sive 500 MHz Slimline 10:1 probes of the type Hz355, passive
1000:1 probes with up to 4000 V of the type HzO20, active 10:1
probes with
<
1 pF input capacity of the type HzO30, active
difference amplifier probes Hz100, Hz109 and Hz115 with up
to 1000 V
rms
and 40 MHz, active high speed differential probes
HZO40 and HZO41 with 200 or 800 MHz
bandwidth, the current
probes HZO50 and HZO51 with up to 100 kHz bandwidth and up
to 1000 A, the 19“ rack-mount set HzO91 and the type HzO90
transport bag for the protection of the instruments.
The options HOO10/11 and 12 make the analysis of serial protocols
available, more informations you can find in chapt. 2.10.
2.6 General concept of instrument operation
Our 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 specific function (e.g. FFT) which
in turn can call or require more settings will activate the
function upon the first 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.
– Such keys which open a soft menu upon the first touch will
close it upon pushing a second time.
– The
universal knob is used in the diverse menus either for
selecting numbers or submenus and to enter values by
pushing. The universal knob in cursor measurement is used
for selecting and moving the cursor.
– The key MENU OFF below the soft menu keys closes the
present menu or it switches to the next higher level.
Fig. 2.9: Selection of basic soft
menu elements
Fig. 2.10: Basic soft menu
elements for settings and
navigation
