Tenma 72-14520 Instructions Manual page 7

Digital phosphor storage oscilloscope
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1.
USB Device Identification: This icon will be displayed when an USB storage
device is connected.
2.
Trigger Status Identification: Include TRIGED (has been triggered), AUTO,
READY, STOP, and ROLL (rolling)
3.
Timing Scale: Indicates the amount of time represented by one square, which can
be adjusted by the horizontal scale control.
4.
Sampling Rate/Acquisition Mode: Indicates the current sampling rate and storage
depth.
5.
Horizontal Displacement: Shows the horizontal displacement, which can be
adjusted by turning the horizontal position control. Pressing the control returns the
displacement back to 0.
6.
Trigger Status: Displays trigger source, type, slope, coupling, level, etc.
TRIGGER SOURCE: There are seven states: CH1~CH4, AC Line, EXT, and EXT/5.
Note: CH1~CH4 will each be displayed a different trigger colour.
TRIGGER TYPE: The types are edge, pulse width, video, slope, and advanced
trigger.
TRIGGER SLOPE: The types are rising, falling, and rising/falling.
TRIGGER COUPLING: The types are DC, AC, high frequency, low frequency and
noise.
TRIGGER LEVEL: Indicates the current trigger level value, can be adjusted with the
trigger level control.
7.
CH1 Vertical Identification: Displays CH1 activation state, channel coupling,
bandwidth limit, vertical profile, and probe attenuation coefficient.
CHANNEL ACTIVATION STATE: When the background colour is consistent with
the channel colour, the channel is activated. Press CH1~CH4 to open/close the
corresponding channel.
CHANNEL COUPLING: Includes DC, AC, and grounding.
BANDWIDTH LIMITATION: When the bandwidth limit function is turned on, a BW
icon will appear in the display.
VERTICAL PROFILE POSITION: When CH1 is activated, the vertical profile can be
adjusted with the vertical scale control.
PROBE ATTENUATION FACTOR: Displays CH1 probe attenuation coefficient:
0.001X, 0.01X, 0.1X, 1X, 10X, 100X, and 1000X
8.
CH2 Vertical Identification: Same as 7 but for CH2
9.
CH3 Vertical Identification: Same as 7 but for CH3
10. CH4 Vertical Identification: Same as 7 but for CH4
11. Operation Menu: Displays the current operation menu. Use F1 ~ F5 to navigate
through menu contents
12. Analogue Channels: Displays CH1~CH4 waveforms with matching tag and
waveform colour.
7

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