Powertek Logo
UK Office:
US Office:

DP50 High Voltage Differential Probe

The DP50 differential voltage probes are an important accessory for any application involved in power electronics and high voltage systems.  These probes allow isolated and floating measurments with any oscilloscope or data recorder, allowing the oscilloscope to remain grounded.  Using a DP50  Differential probe, differential and floating (isolated) measurements can be made on a variety of ac power systems like 460V/230V/110V ac input power supplies, chopped and switching power supplies, thyristor controllers, variable speed motor drives (PWM signals), motor inrush current and measurement across current shunts.  The isolated input is made via two 4mm/banana safety sockets. The BNC output allows easy connection to an oscilloscope or DAQ.  The DP isolation probes are powered from a battery or power supply.

DP50 Differential Probe Features:
  • High voltage differential probe
  • Max. Input Voltage:  +/-6.5kV DC or 6.5kVp-p
  • Bandwidth:  DC-50MHz
  • Input Impedance 100MΩ/1PF
  • x500 or x5000 Attenuator
  • PCL/Test printer output, IEEE488 interface included
  • Max to ground volage: 6.5kV CATIII
  • Output Impedance 50Ω
  • Used for isolation of oscilloscope and data loggers
  • Suitable for power electronic systems and electric car power systems
  • Allows isolated floating measurements
  • Prevent ground loops
DP50 Differential Probe Specifications
Differential Voltage DC + AC Peak:
Bandwidth (50Ω load -3dB):
Common Mode Voltage DC + AC peak:
Common Mode Voltage RMS CATII / CATIII:
To Ground Maximum Voltage:
6.5kVp-p CATIII
Attentuation (Switchable):
x500, x5000
Input R (Each Input):
50MΩ  +/-2%
Input C (Each Input):
Maximum Operation Voltage (DC + AC peak):
≤4kV at x500
≤40kV at x5000
Common Mode Rejection Ratio (CMRR):
60Hz: >10000:1
100Hz: >1000:1
1MHz: >300:1
Noise (Into 50 ohm Load):
≤1.0m Vrms
Input Impedance (Between Input):
100MΩ // 1PF
Accuracy (at 20-30 degrees Celsius 70%RH after 20 minutes):
≤ +/-2%
Maximum output Voltage:
8V p-p
Power Source:
External 9V DC Adaptor
Over Range Indicate

DP50 Datasheet
CE marked