DP-30k High Voltage Differential Probe
The differential probe DP-30k allows isolated and floating measurments with any oscilloscope or data recorder, allowing the oscilloscope to remain grounded.
Highlights
- Measure high differential voltages
- Max Input Voltage: ±15kV DC / 15kVp-p / 10kVrms AC
- Bandwidth: DC-75MHz x200 range
- Input Impedance 82MΩ / 1pF
- Attenuator: x200, x2000
- Max to ground voltage: 5kV CATIII
- Output Impedance: 50Ω
- Used to isolate oscilloscope and data loggers
- Perfect for power electronic systems and EV power systems
- Allows isolated floating measurements
- Prevents ground loops and common mode issues
- Cablibration Certificate provided
Description
About the DP-30k Oscilloscope Differential Voltage Probe
The DP‑30K differential voltage probe is an essential tool for engineers working in power electronics, high‑voltage systems and industrial energy‑conversion applications. Designed for safe, accurate and isolated measurements. The DP‑30K allows high‑potential signals to be measured using any DAQ, oscilloscope or data recorder, while keeping the oscilloscope securely grounded. This makes it ideal for applications where standard single‑ended probes cannot be used due to grounding limitations or elevated voltage levels.
The DP‑30K enables reliable differential and floating (isolated) measurements across a wide range of AC power systems, including 460V/230V/110V AC input power supplies, chopped and switching power supplies, thyristor controllers, variable‑speed motor drives (PWM signals), motor inrush current and current‑shunt measurements. Its isolated input is provided through two 4mm safety banana sockets, ensuring secure and safe connection to high‑voltage test points.
For seamless integration with test equipment, the DP‑30K features a BNC output, allowing quick and reliable connection to oscilloscopes and DAQ systems. The probe can be powered by either a battery or an external power supply, offering flexibility for both laboratory and field environments.
With its high input impedance, strong common‑mode noise rejection and robust insulation, the DP‑30K delivers clean, accurate waveform capture even in noisy, high‑EMI switching environments. This makes it a trusted solution for R&D labs, industrial maintenance teams, academic programs and system validation engineers who require safe floating measurements, high‑voltage differential accuracy and dependable oscilloscope performance.
Applications
DP-30k Differential probe applications:
- High‑impedance energy‑saving circuits
- Motor drive inverter analysis
- Monitoring IGBT/MOSFET gate drive signals
- Thyristor and SCR controllers
- Floating measurement where ground reference is unsafe
- High‑voltage differential measurement up to 15kV
- Switch Mode Power Supplies primary‑side waveform measuring Thyristor and SCR controllers
- Test labs needing safe HV measurement
- Investigating ground loops and floating nodes
- Motor drive PWM output analysis
- Resonant converters
- Motor inrush current observation
Specification:
| DP-30k High Voltage Differential Probe | |
|---|---|
| Differential Voltage DC/AC peak | 1.5kVp-p x200 |
| 15kVp-p x2000 | |
| Bandwidth (50Ω load -3dB) | 75MHz x200 |
| 20MHz x2000 | |
| Common Mode Voltage DC/AC peak | 7.5kV DC |
| Common Mode Voltage RMS CATII / CATIII | 5kVrms |
| To Ground Maximum Voltage | 7.5kV CATIII |
| Attenuation(Switchable) | x200, x2000 |
| Input R (Each Input) | 41MΩ, ±2% |
| Input C (Each Input) | <2pF ±0.5% |
| Maximum Operation Voltage (DC + AC peak) | ≤1.5V at x200 |
| ≤15kV at x2000 | |
| Common Mode Rejection Ratio(CMRR) | 60Hz: > 10000:1 |
| 100Hz: > 1000:1 | |
| 1MHz: > 300:1 | |
| Noise (Into 50Ω Load) | ≤1m Vrms |
| Input Impedance(Between Input) | 82MΩ // 2pF |
| Accuracy (at 20-30°C 70%RH after 20minutes) | >2% |
| Maximum Output Voltage | ±8V |
| Power Source | External 9V DC Adaptor |
| Other | Over Range Indication |
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