Instructions

3. Description
By enabling conventional oscilloscopes to display and measure in-circuit waveforms that
are referenced to high common mode voltages, the differential probe extends the
measurement capability of oscilloscopes in electronic power converters, inverters, motor
speed controls, switch mode power supplies, and many applications.
4. Installation
a. Simply plug-in the BNC output connector to the vertical input of a general purposed
oscilloscope or other measurement instrument, and connects the auxiliary grounding
terminal to a proper ground. The measurement instrument must have a ground
referenced.
b. Connect an appropriate power source to this probe and or enter the batteries, then
turn it on.
c. Select the proper attenuation ratio. When measuring signals below 70VDC, switch
the attenuation ratio to 1/10 in order to get higher resolution and less noise ratio.
Otherwise, set the attenuation ratio to 1/100 when measuring signals up to 700VDC
WARNING. To protect against electric shock, use only the
accessories supplied with this probe.
d. Using the appropriate probe accessories, connect the inputs to the circuits under
measurement.
CAUTION. This probe is to carry out differential measurement
between two points on the circuit under measurement.
This probe is not for electrically insulating the circuit
under measurement and the measuring instrument.