4、Operation Steps
1) When the oscilloscope has a Micsig UPI (universal probe interface), connect the differential probe
output end to the oscilloscope input channel to power the probe.
2) When the oscilloscope does not have a Micsig UPI: Firstly, connect the differential probe to the
power adapter PA05, then connect the two to the oscilloscope input channel; Secondly, connect the
Type-C cable to the 5V DC power supply to power the adapter.
3) Select the appropriate attenuation ratio on the power box of the differential probe, according to
the voltage range of the signal under test.
4) Connect the signal input line on the signal box of the differential probe to the signal under test to
start the measurement. If the signal exceeds the voltage range of the current ratio, the indicator will
flash, please turn off the signal under test and disconnect the differential probe power supply.
5) Set up the oscilloscope to observe the signal tested by the differential probe.
3、Panel Description
1) Differential probe power supply box
2) Differential probe signal box
3) Power Adapter
BNC port: Signal Output
Spring Pin:
Power Input
Button: Ratio Switch
Cable: to Signal Box
Button: Auto Zero
Indicator: Current Ratio
- Zero
- Overrange
Signal Input Cable: –
Signal Input Cable: +
Cable: to Power Supply Box
Type-C port: Connect to 5V power supply
Contact: Connect to power box spring pin
BNC port: To oscilloscope
BNC port: To probe
power supply box
Model name
DP750 -100
DP750 -50
Bandwidth
100MHz
50MHz
Rise Time
≤ 3.5ns
≤ 7ns
Attenuation Ratio
50X; 500X
Gain Accuracy
±2%
Max Differential Test Voltage（DC+AC PK）
50X: 75V; 500X: 750V
Max Common Mode Input Voltage
CAT II 600V
Input Referred Noise
≤ 12mVrms(50X); ≤ 120mVrms(500X)
Common Mode Rejection Ratio (CMRR)
＞ 80dB(DC); ＞ 80dB(100KHz); ＞ 60dB(1MHz)
Input Resistance
Differential input impedance: 8MΩ||1.25pF;
Each input ground: 4 MΩ||2.5pF
Output Voltage
≤ 1.5V
Power Rate
1W
Power Supply
Micsig UPI Interface; USB (Adaptor)
Overrange Alarm
Indicator flashes
Dimensions
Power Supply Box: 80*37*22 mm
Signal In/Output Box: 49*25*12.5 mm
Input Cable Length
33mm
Output Cable Length
100mm
Working Temperature
0℃ -40℃
Working Humidity
10%-85%
2、Specifications
