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Tenma 72-7630 Instructions Manual page 21

4 channel digital storage oscilloscope

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Functions Menu
Channel
Acq set
Trigger
Signal
Back
Unlock: In Auto mode the setup will go back to default for auto setup.
Locked: In Auto mode the current status is locked for auto setup.
The adjustment basis for the trigger signal source in Auto mode :
1.
If there is input signal in only one channel, that channel will be the trigger source.
2.
When more than one channels have input signal, the system will search for trigger
signal from CH1.
3.
The first channel where signal is detected will be the trigger source.
4.
If no signal is detected in any channel, CH1 will be the trigger source.
Auto Calibration: You can correct measurement errors caused by environmental
changes with the auto calibration function. This process can be run selectively when
necessary. To make calibration more accurate, power on your oscilloscope and allow
20 minutes to warm up. Then press the [UTILITY] button (help function) and follow on-
screen instructions.
Setting up Auto Measurement
The MEASURE button on the
control panel is the function key for
auto measurement.
Functions Menu
All
Custom
Indicators
Clear
Next
Functions Menu
ADV
Pre 2/2
Setup
In the unlock mode, default status is restored. The default
LOCKED /
status is as follows: Bandwidth limit : full bandwidth, VOLTS/
UNLOCK
DIV, coarse tune, Inversion: Off
In the unlock mode, default status is restored. The default
LOCKED /
status is as follows: Sampling mode : normal sampling
UNLOCK
Equivalent sampling: off
In the unlock mode, default status is restored. The default
LOCKED /
status is as follows: Type: edge, Signal source: adjusted,
UNLOCK
Trigger coupling: DC, Slew rate type: rising
LOCKED /
Press [F4] to select year then adjust with multipurpose control
UNLOCK
Return to utility menu
Setup
Turn on the time display. Time display is disabled when the
ON/OFF
frequency counter is in us
Press [F2] then use the multipurpose control to select the
desired parameter and press to confirm. Up to 4 parameters
can be displayed simultaneously
Visual indication of the measurement value's physical
properties. Select from parameters 1 to 4
Clear all customised parameters
Enter the next menu page
Setup
Delay
The rising edge or falling edge time interval of a random
phase
channel waveform
Confirm setting and return to previous menu
Notes
Notes
e
Notes
21

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