High‑Performance Differential Voltage Probes DP‑30HS & DP‑40LV for accuracy and isolation when monitoring floating voltage signals
DP30HS Low‑Voltage Precision Differential Probe:
DP40LV Mid‑Voltage High‑Bandwidth Differential Probe:
About the DP-30HS Low‑Voltage Precision Differential Probe:
The DP‑30HS is a high‑sensitivity, low‑voltage differential voltage probe engineered for precision measurements in control electronics, instrumentation and small‑signal systems. With a 30 MHz bandwidth and 65Vp‑p differential voltage capability. It delivers clean, accurate waveform capture for applications where signal integrity is critical.
Its high input impedance (1MΩ // 3.5pF) ensures minimal loading on delicate circuits, while its excellent common‑mode noise rejection provides stable measurements even in electrically noisy environments. The DP‑30HS offers three selectable attenuation settings ×1/×2/×10, giving engineers the flexibility to analyze a wide range of low‑voltage signals without sacrificing accuracy.
Designed for universal compatibility, the probe features insulated differential inputs and a standard BNC output, making it easy to integrate with virtually any oscilloscope or DAQ system. Compact, reliable and optimized for precision. The DP‑30HS is the ideal tool for engineers working with sensors, control loops, analog front‑ends and other low‑voltage circuits where accuracy and safety matter.
About the DP-40LV Mid‑Voltage High‑Bandwidth Differential Probe
The DP‑40LV is a robust, mid‑voltage differential voltage probe designed for engineers working in power electronics, motor‑drive systems, inverter control, and industrial automation. With a 40MHz bandwidth and a generous 650Vp‑p differential voltage range. It provides the performance needed to analyze switching waveforms, PWM signals and mid‑voltage control circuitry with confidence.
Its high input impedance (1MΩ // 3.5pF) and strong common‑mode noise rejection ensure accurate, noise‑free measurements across a wide range of operating conditions. The DP‑40LV includes three attenuation options ×10/×20/×100, allowing safe scaling of higher‑voltage signals into the oscilloscope’s input range while maintaining excellent fidelity.
Built with safety in mind, the probe carries a CATIII 230V rms rating, making it suitable for mains‑related diagnostics and industrial environments. Dual insulated input connectors and a standard BNC output ensure compatibility with most oscilloscopes and data acquisition systems. Rugged, versatile, and engineered for demanding applications. The DP‑40LV is the go‑to solution for mid‑voltage differential measurements in modern power‑electronics systems.
DP-30HS Low‑Voltage Precision Differential probe:
DP-40LV Mid-Voltage High Bandwidth Differential probe:
| DP-30HS and DP-40LV Differential Probe | ||
|---|---|---|
| Functions | DP-30HS | DP-40LV |
| Differential Voltage DC/AC pk | 65V | 650V |
| Bandwidth (50ohm load -3dB) | 30MHz (x2, x10) | 40MHz (x20, x200) |
| Common Mode Voltage DC/AC pk | 65V | 650V |
| Common Mode Voltage RMS CATII / CATIII | 23Vrms | 230Vrms |
| Attenuation | x1, x2, x10 | x10, x20, x100 |
| Input R (Each Input) | 1MΩ ±1% | 1MΩ ±1% |
| Input C (Each Input) | 3.4pF ±5% | 3.4pF ±5% |
| Maximum Operation Voltage (DC + AC pk) | ≤±6.5V at x1 | ≤±65V at x10 |
| ≤±13V at x2 | ≤±130V at x20 | |
| ≤±65V at x10 | ≤±650V at x100 | |
| Common Mode Rejection Ratio(CMRR) | 60Hz > 10000:1 | 60Hz > 20000:1 |
| 100Hz > 1000:1 | 60Hz > 2000:1 | |
| 1MHz > 300:1 | 1MHz > 600:1 | |
| Noise (Into 50Ω Load) | ≤1mVrms | ≤1mVrms |
| Input Impedance(Between Input) | 2MΩ // 1.7pF | 18MΩ // 1.7pF |
| Accuracy (at 20-30°C 70%RH after 20minutes) | ≤ ±2% | ≤ ±2% |
| Noise (Into 50ohm Load) | ≤ ±7.0V | ≤ ±7.0V |
| Power Source | External 6V~9V DC | External 6V~9V DC |