DP-40k High Voltage Differential Probe

The DP-40k differential voltage probes are an important accessory for any application involved in power electronics and high voltage systems.

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DP-40k, differential voltage probe for electrical isolation purposes

Highlights

  • High voltage differential probe
  • Max. Input Voltage: 20kV DC or 40kV p-p or AC 14kV rms
  • Bandwidth: DC-20MHz
  • Input Impedance 100MΩ and 1pF
  • x500 or x5000 Attenuator
  • Test printer output
  • Max to ground volage: 10kV CATIII
  • Output Impedance 50Ω
  • Used for isolation of oscilloscopes and data loggers
  • Suitable for power electronic systems and electric car EV power systems
  • Allows safe isolated floating measurements
  • Prevents ground loops improves accuracy
See more Differential Voltage probes

Description

About the DP-40k High Voltage Differential Probe

The DP40k 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 DP40k  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.

Applications

DP-40K Differential probe applications:

  • Wide‑bandgap device development
  • High‑voltage power‑electronics testing
  • Industrial automation and control systems
  • SMPS design and troubleshooting
  • High‑energy transient analysis
  • Investigating ground loops, isolated and floating nodes
  • R&D, validation, and compliance testing
  • Gate‑Drive signal analysis
  • Motor drive and Industrial control Systems
  • Power conversion efficiency and loss analysis
  • Automotive and transportation power systems

Specification:

DP-40k High Voltage Differential Probe
Differential Voltage DC/AC peak 40kV
Bandwidth (50Ω load -3dB 4nS) 20MHz
Common Mode Voltage DC/AC peak 40kV
Common Mode Voltage RMS CATII / CATIII 14kVrms
To Ground Maximum Voltage 10kV CATIII
Attenuation(Switchable) x500, x5000
Input R (Each Input) 50MΩ, >2%
Input C (Each Input) <10pF
Maximum Operation Voltage (DC + AC peak) ≤4kVpk at x500
≤40kVpk at x5000
Common Mode Rejection Ratio(CMRR) 60Hz: > 10000:1
100Hz: > 1000:1
1MHz: > 300:1
Noise (Into 50Ω Load) ≤1mVrms
Input Impedance(Between Input) 100MΩ // 1pF
Accuracy (at 20-30°C 70%RH after 20minutes) ≤±2%
Maximum Output Voltage 8Vp-p
Power Source External 9V DC Adaptor
Other Over Range Indication

Datasheet:

DP40k Datasheet
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