Promax OD-610 User Manual page 26

The description of the Channel Menu is shown as the following list:
Function Menu
Coupling
Inverted
Probe
Limit
To set channel coupling
►
Taking the Channel 1 for example, the measured signal is a square wave
signal containing the direct current bias. The operation steps are shown as
below:
Press the CH1 MENU button and call out the CH1 SETUP menu.
Press the H1 button, the Coupling menu will display at the screen.
Press the F1 button to select the Coupling item as "DC". Both DC and
AC components of the signal are passed. The waveforms are shown as
Figure 16.
Then, press F2 button to select the Coupling item as "AC". The direct
current component of the signal is blocked. The waveforms are shown
as Figure 17.
June 2017
Setting
DC
AC
GROUND
OFF
ON
X1
X10
Attenu
X100
X1000
YES
MeasCurr
NO
A/V (mA/V)
V/A (mV/A)
full band
20M
Description
Pass both AC and DC components of the
input signal.
Block the DC component of the input signal.
Disconnect the input signal.
Display original waveform.
Display inverted waveform.
Match this to the probe attenuation factor to
have an accurate reading of vertical scale.
If you are measuring current by probing the
voltage drop across a resistor, choose YES.
Turn the M knob to set the Amps/Volts ratio.
The range is 100mA/V ~ 1KA/V.
Amps/Volts ratio = 1/Resistor value
Volts/Amp ratio is automatically calculated.
Get full bandwidth.
Limit the channel bandwidth to 20MHz to
reduce display noise.
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