User Manual

UserEM1230 Handheld Digital Oscilloscope

s Manual

F1 F2

F1 F2 F3 F4 F5

F1 F1F2

Adjust the vertical range

10mV/div 500V/div(No probe attenuation 1:1

2 Channel A\B other settings

Power On

Enable / disable the channel CHA / CHB

The instrument can display the input A or B input signal waveform in dual-channel oscilloscope

mode, the input A and input B signals simultaneously displayed.if the user wants to measure

individual signals, selectable single-channel oscilloscope mode, simply connect the input A that

to the input B closed; Conversely, if the user wants to simultaneously measure two

signals ,directly using dual-channel oscilloscope mode while connected to input A, input B.

Select CHA / CHB signal coupling, DC coup/AC coup

DC Coupling allows you to measure and display both the DC and AC components of a signal.

AC Coupling blocks the DC component and passes the AC component onl

Select the CHA/CHB bandwidthlimitBW25MHz/BW10KHz

There are cases where you may want to filter out noises in order to see a better signal. This can

be especially true when ignition noise is present. The instrument provides a noise filter for each

input channel which reduces the bandwidth from its normal 25MHz to10KHz. You can enable or

disable CH A Filter or CH B Filter using the INSTRUMENT SETUP menu. When enabled, the

FILTER indicator appears

on the screen.

Select the CHA/CHB voltage probe attenuation coefficient

V:×1/ V:×10/ V:×100/ V:×1000/ V:×10000

Or select the CHA/CHB current probe conversion coefficient

1mA/mV;10mA/mV;0.1A/mV;1A/mV;10A/mV

You can according to the probe type CHA or CHB (voltage probe, current probe) to select its