All-sun EM1230 - Panel Keyboard and Display Interface

UserEM1230 Handheld Digital Oscilloscope
,
s Manual
CHBTRIGCHA
CHA CHB
3
3
EM1230
F1 F2 F3 F4 F5
R/H
V V
S nS
mV mV
AUTO
MENU
7
1.2 Measurement port
CHA
CHB External signal input test port, CHA and CHB either as single-channel
oscilloscope can also be used as a dual-channel oscilloscope in the oscilloscope mode.
COM Oscilloscope and multimeter measurements common ground port
TRIG:
1 Oscilloscope mode Used in SCOPE mode to trigger (or start) acquisitions from an external
source
2
Multimeter mode DC voltage \ AC voltage \ Resistance \ Continuity \ Diode \ capacitance \
current measurement input ports
Note:
1
Note that each port safety limit, do not exceed the maximum test range
2
The multimeter testing current mode, you must use the current probe
3
Note that proper
grounding
(Incorrect Grounding) (Correct Grounding)
A ground loop can be created when you use two ground leads connected to different ground
potentials. This can cause excessive current through the grounding leads