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39
Advanced Operating Functions
5.3.5 Interface
Activate the menu INTERFACE by pressing the knob. In
this menu, the following settings for the various interfaces
can be selected:
❙ the dual interface HO720 USB/RS-232 (baud rate,
number of stop bits, parity, handshake On/Off),
❙ LAN interface HO730/HO732 (IP address, sub net mask
etc. see manual HO730/HO732) and
❙ the IEEE-488 GPIB interface HO740 (GPIB address).
SELECT INTERFACE allows you to select the respective
interface via knob. The selection is indicated by a check
mark. Additionally, under INFORMATION the active inter-
face will be displayed in brackets [ ]. For more information
about interfaces, please see chapter 6 or the respective
manuals at www.hameg.com. Use the left arrow key to
return to the previous menu level.
5.3.6 Key Brightness (only R&S®HMP2020/2030)
Activate the menu KEY BRIGHTNESS by pressing the
knob. This menu item allows you to regulate the intensity
of the key illumination via knob. Use the left arrow key to
return to the previous menu level.
5.3.7 Key Fallback Time
Activate the menu KEY FALLBACK TIME by pressing the
knob. The so called Key Fallback Time can be set to 5s or
10s via knob. In addition, it is possible to switch off the
automatic switching back (Off). The selection is indicated
by a check mark. Use the left arrow key to return to the
previous menu level.
5.3.8 Display Contrast
Activate the menu DISPLAY CONTRAST by pressing the
knob. This menu item allows you to regulate the display
contrast via knob. Use the left arrow key to return to the
previous menu level.
5.3.9 Display & Key Brightness
(only R&S®HMP4030/4040)
This menu item allows you to regulate the intensity of the
key and display illumination via knob.
5.3.10 Brightness Fallback Time
(only R&S®HMP4030/4040)
This menu item allows you to select the so called BRIGHT-
NESS FALLBACK TIME. If no instrument settings are
performed on the front panel for some time, the intensity
of the display and keys will automatically be reduced. The
Fallback Time can be set to 30 min. or 120 min. via knob.
In addition, it is possible to switch off the Fallback Time
The use of the LAN interface HO730 requires a delay of a mini-
mum of 2 ms between two commands!
Fig. 5.8: Key
Fallback Time
(R&S®HMP2030)
(Off). The selection is indicated by a check mark. Press any
key to return to the regular operating mode.
5.3.11 Beeper
Activate the menu BEEPER by pressing the knob. This
menu allows you to activate or deactivate the noise issued
by the keys. In addition, the HMP series offers the option
to issue a signal only in case an error occurs. This can also
be activated or deactivated at this point. Use the left arrow
key to return to the previous menu level.
5.3.12 Information
Activate the menu INFORMATION by pressing the knob.
This includes instrument information such as type classi-
cation, rmware version and version of the channel
rmware. Use the left arrow key to return to the previous
menu level.
5.3.13 Reset Device
Activate the menu RESET DEVICE by pressing the knob.
This menu item allows you to reset the instrument to its
original condition (factory settings). All selected instrument
settings will be erased.
Fig. 5.9: Beeper
(R&S®HMP2030)
If all the channels do not have the same rmware, a rmware
update will be required.
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