Rohde & Schwarz RT-ZISO05L Isolated Probing System

Overview

The Rohde & Schwarz RT-ZISO05L is a 500 MHz isolated probing system with an extended 10 m cable for remote or difficult-to-access measurement points. It uses a power-over-fiber-optic architecture to provide galvanic isolation between the device under test and the measuring instrument, achieving exceptional common-mode rejection and signal fidelity even in extreme voltage environments.

The system is particularly suited for measuring wide-bandgap semiconductors (SiC, GaN) and other fast-switching power electronics where both precision and safety are critical.

Key Features

• 500 MHz bandwidth with >90 dB CMRR at 1 GHz
• ±3000V differential input range with ±60 kV common mode voltage range
• Power-over-fiber-optic galvanic isolation eliminating ground loops
• Dual connectivity: Rohde & Schwarz probe interface and SMA connector
• CAT III 1000V safety rating compliant with IEC/EN 61010-31
• Thermal drift and gain error compensation for signal integrity
• Formable, long probe tip cables for easy access to measurement points
• 10 m cable length for extended reach to remote measurement points

Applications

• Wide-bandgap semiconductor device testing (SiC, GaN)
• Inverter and motor drive development and characterization
• High-voltage power electronics analysis with remote probe placement
• High-side gate voltage measurements on complementary switching circuits
• Power conversion system validation and debugging

Included Accessories

• R&S RT-ZISO isolated probing system
• R&S ZISO-B410 10 m cable
• R&S ZISO-B905 500 MHz bandwidth module
• R&S ZISO-Z301 probe tip
• Carrying case, operating manual, and probe stand
• Interface cable and SMA to BNC adapter
• External DC power supply for standalone operation