Seeed DS203, Руководство пользователя

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6
Navigate only moves the selected fields within one area. The Jump
▲
button allows
jumping from one area to another. Once jumped into an area, the Navigate switch will only
move selected Menu in the same area, until the Jump Button is pressed.
To enter the Output Area to change fields H and I, you must first move to Field G and then press the
Select switch
to navigate among the G-I fields in the Output Area. Then scroll the Select
rocker switch left or right to change values.
The Fields B to F in the Input Area have upper and lower halves. Hold down the Select switch
for 2 seconds will switch between the upper and lower halves. Then scroll the Select rocker
switch left or right to change its value.
The lower part of the Output Area shows the current contents of the memory buffer. A rectangle
shows the portion of the memory buffer which is currently displayed on the DSO screen. This
rectangle can be moved using the T0 field in the Measurement Area.
Fields in the Input Area
Fields and their functions in the Input Area
Field Name Functions
A RUN/HOLD Running Mode: Run/Hold. Press Run button to change.
Battery charge
B AC/DC
50mV-10V Channel A: AC Coupling/DC Coupling/Hide
Voltage per grid, in 1-2-5 steps
C AC/DC
50mV
—
10V
Channel B: AC Coupling/DC Coupling/Hide
Voltage per grid, in 1-2-5 steps
D DC Channel C: DC Coupling/Hide
E
CH_(D)/(A+B)/(A-
B)/(C&D)/(C|D)/REC_A/R
EC_B/ REC_C/REC_D Channel D: Channel D/ (CH_A+ CH_B)/(CH_A-CH_B)/
(CH_A AND CH_B)/CH_A OR CH_B)/Last CH_A Record/
Last CH_B Record/ Last CH_C Record/ Last CH_D Record
F AUTO/NORM/SINGL/
NONE/SCAN
0.1uS
—
1S
Sync mode
Auto: Refresh display, synchronize when triggered.
Norm: Display synchronized waveform only when triggered.
Single: Display triggered waveform and hold, blank before trigger
None: Refresh unsynchronized waveform, ignoring triggering.
Scan: Repeatedly sweep waveform from screen left to right.
Sampling time, in 1-2-5 steps
Fields in the Output Area
Fields and their functions in the Output Area
Field Name Function
G Squ/Sin/Tri/Saw Output Waveform: Square/Sine/Triangle/Sawtooth
H Frequency Square wave: 10Hz
—
8MHz; Sin/Tri/Saw waves: 10Hz
—
20KHz
<
1MHz, in 1-2-5 steps; >1MHz, in 2-4-6-8 steps
I
DUT 50
％
—
90
％ Duty cycle
Navigate
only moves the selected menu between B and G. To move to Menus H and I, first