User manual

42
Documentation, Storage and Recall
the REF key in the VERTICAL section of the control pa-
nel. With the soft menu key RE1 to RE4 up to 4 references
can be activated. The top soft menu SOURCE allows you
to use the universal knob to select the source for the refe-
rence to be saved. You can select from the activated chan-
nels and mathematical curves. Press the soft menu key
DISPLAY to display the selected reference curve or to up-
date the current reference curve.
To load a reference from a USB stick or the internal me-
mory, open the soft menu LOAD. This shows a window
displaying the internally stored references. You can se-
lect the desired target reference curve in the top menu
itemandbypressingLOADinthelemanager.Tocom-
plete loading and displaying the reference, press LOAD in
thelemanagermenuagain.Tosaveareference, press
the SAVE key, determine the source,storagelocation,le
name and curve, and press the soft menu key SAVE (with
the disk icon). The FILE NAME can be changed or adjusted
to the corresponding setting (REF ist the default label). You
can use the soft menu key COMMENT to enter a comment
whichwillbedisplayedinthelemanagerfooteroncea
lehasbeenselected.
10.3 Traces
In addition to references, you can also store A/D converter
data. Traces can only be stored to externally connected
USB sticks (not internally). Depending on the selected time
base and sample rate in the ACQUIRE menu (AUTOMATIC,
MAX. SAMPLE RATE or MAX. WAVEFORM RATE) the
maximum read-out measurement points varies..
In the soft menu STORAGE the USB connection on the
front of the instrument is selected as storage location. Se-
lecting the respective storage location is possible when a
USB stick has been recognized. If a USB stick is connec-
ted, you can also change, create or delete directories. Use
the soft menu key SORT ENTRIES to sort several settings
lesbyname,type,sizeordate.PressACCEPTDIR.to
conrmthetargetdirectoryandyouwillautomaticallyre-
turn to the curve main menu.
Fig. 10.3: Storage menu for references
The full memory can only be read out via interface in STOP mode
with the maximum sampling rate setting (ACQUIRE menu).
The soft menu CURVE allows you to use the univer-
sal knob in the CURSOR/MENU section to select a chan-
nel which will be saved as a curve. You may only select
channels that have been activated via channel keys. The
soft menu key FILE NAME opens the menu for the name
entry, where you can use the universal knob or the KEY-
PAD key in the CURSOR/MENU section to enter a name
andconrmyourentrybypressingACCEPT(TRCisthe
default name). The curve main menu will display automa-
tically. You can open a selection window by pressing the
softmenukeyFORMATtodeterminetheleformat.The
universal knob in the CURSOR/MENU section allows you
to select the desired format. You can choose from the fol-
lowing formats:
❙ BIN:
AbinarylemaycontainanytypeofBytevalue.The
captured curve data will be stored without any time
information.
❙ CSV (Comma Separated Values):
InCSVles,curvedataisstoredintableformat.Each
table row is separated by a comma.
Example:
[s],CH1[V]
-4.99500E-07,-2.601E-03
-4.99000E-07,-6.012E-04
-4.98500E-07,-6.012E-04
-4.98000E-07,1.399E-03
❙ T XT:
TXTlesareASCIIlesthatonlycontainamplitude
values (no time values). Amplitude values are separated
by a comma. The value pairs are listed as single values
withoutidentication.
Example:
1.000E-02,1.000E-02,1.000E-02,1.000E-02,3.000E-02
If you choose the “Max. Sampling Rate” in the ACQUIRE menu,
two rows will be afxed with a time stamp during the CSV export
because a minimum and a maximum value must be assigned to
this time value. To acquire an amplitude value per time stamp, ac-
tivate “Automatic” in the ACQUIRE menu.
Fig. 10.4: Menu for storing curves