The **VPS210-R** is a specialized high-voltage probe set, typically used with the Fluke ScopeMeter 190 Series. It is designed for electronic and electrical diagnostics where safety and signal integrity are paramount. --- ### ## Technical Specifications The electronics of the VPS210-R are designed to attenuate high-voltage signals to a level safe for the oscilloscope's input circuitry while maintaining a wide frequency response. | Feature | Specification | | :--- | :--- | | **Attenuation Ratio** | 10:1 | | **Bandwidth** | 200 MHz | | **Maximum Input Voltage** | 1000 V CAT II / 600 V CAT III | | **Input Resistance** | 10 MΩ | | **Input Capacitance** | 12 pF | | **Compensation Range** | 10 pF to 22 pF | | **Cable Length** | 1.2 Meters | --- ### ## Key Electronic Components & Design ### 1. Passive Attenuation Network The core of the VPS210-R is a **passive resistive-capacitive (RC) voltage divider**. * **Resistive Element:** A high-precision 9 MΩ resistor works in series with the oscilloscope’s 1 MΩ input impedance to create the 10:1 ratio. * **Capacitive Element:** Parallel capacitors ensure that high-frequency signals bypass the resistors, preventing signal "rounding" or distortion at high speeds (up to 200 MHz). ### 2. Integrated Identification Pin The connector end features a specific mechanical/electronic interface (often a BNC with a sensing ring). This allows compatible Fluke ScopeMeters to: * **Auto-detect** the 10:1 attenuation. * **Automatically adjust** the on-screen scale (e.g., if the probe sees 100V, the scope displays 100V rather than 10V). ### 3. Safety Construction Unlike standard breadboard probes, the VPS210-R electronics are encased in reinforced insulation. * **Double Insulation:** Protects the user from high-voltage transients. * **Shrouded BNC:** The connector is recessed to prevent accidental contact with the common ground/shield when working with floating measurements. ### 4. Compensation Trimmer Inside the BNC head is a small adjustable capacitor (trimmer). This allows the user to match the probe's internal capacitance to the specific input capacitance of the oscilloscope channel to ensure a flat frequency response. --- ### ## Usage Context Because the VPS210-R is **Red** (the "-R" suffix), it is typically used for **Channel A** in a multi-channel setup, paired with the VPS210-G (Grey) for Channel B. This color-coding is essential for tracking signals in complex electronic power circuits.