Honeywell/Chadwick 10200

Overview

Honeywell Chadwick-Helmuth Model 10200 (part number 901-10200A) is a photocell probe — a compact optical accessory used with Chadwick-Helmuth aircraft vibration and rotor-balancing analyzers to generate the once-per-revolution phase reference signal essential to calculating rotor imbalance phase angle. It is not a standalone vibration analyzer but a critical sensing accessory within a complete rotor track-and-balance system.

As an experienced supply partner for Honeywell Chadwick-Helmuth, Seven Star LLC proudly supplies the Model 10200 photocell probe and compatible balancing accessories to aviation maintenance organizations across Oman and the GCC. Every unit is sourced through the manufacturer’s trusted supply channel, giving maintenance teams genuine build quality and full documentation for their airworthiness records.

Operating Principle

The photocell probe is aimed at a reflective marker — typically a strip of retro-reflective tape — applied to the rotating component being balanced, such as a propeller, main rotor, or tail rotor. As the reflective mark passes the probe once per revolution, the photocell detects the reflected light pulse and sends a precise timing signal back to the connected balance analyzer, such as the Chadwick-Helmuth Vibrex or 4-200/8500C series systems.

The analyzer combines this phase reference signal with the vibration amplitude measured by an accompanying accelerometer to calculate the exact correction weight and placement angle needed to balance the rotating assembly. Without an accurate phase reference from the photocell probe, the analyzer cannot determine where on the rotor to apply a corrective weight, even if it accurately measures the vibration amplitude itself — making the probe indispensable to the overall balancing procedure.

Engineering Design of the Model 10200 Photocell Probe

The Model 10200 is built as a compact, rugged optical sensor designed for repeated mounting and dismounting during rotor balancing procedures conducted in hangar and field environments. Its housing protects the internal photocell element from dust, moisture, and mechanical handling during routine use, while its optical sensing range is calibrated to reliably detect the retro-reflective tape marker at typical rotor-balancing working distances.

The probe connects to compatible Chadwick-Helmuth analyzers through standard interconnect cabling, allowing it to be used interchangeably across a maintenance organization’s fleet of balance analyzers without requiring a dedicated probe for each unit, simplifying spares management for aviation maintenance teams.

Key Features

The Model 10200 photocell probe delivers the precise phase reference signal rotor balancing depends on.

• The probe generates a precise once-per-revolution phase reference signal essential for calculating rotor imbalance phase angle.
• It is compatible with Chadwick-Helmuth Vibrex, 4-200, and 8500C series balance analyzers.
• Its compact, rugged housing supports repeated mounting and dismounting in hangar and field environments.
• Reliable optical detection of retro-reflective tape markers ensures accurate phase timing at typical working distances.
• Standard interconnect cabling allows use across a maintenance organization’s fleet of compatible analyzers.
• The probe is a standard accessory in rotor and propeller balancing kits used across fixed-wing and rotary-wing aircraft.
• Its accuracy directly supports predictive maintenance programs that catch imbalance before it progresses to bearing or structural damage.
• Durable construction supports long-term reliability across repeated field maintenance operations.

Industrial Applications

Within Oman’s aviation maintenance sector, the Model 10200 photocell probe supports helicopter and fixed-wing rotor track-and-balance procedures at MRO facilities, military aviation support units, and commercial fleet maintenance organizations. Regular use of this photocell probe as part of routine rotor balancing procedures helps aviation operators across Muscat and the wider Sultanate maintain flight safety and reduce unplanned maintenance events caused by undetected rotor imbalance.

With engineering support in Muscat, Seven Star LLC supplies the Model 10200 photocell probe to aviation maintenance organizations, MRO facilities, and military aviation support units throughout Oman and the GCC, supporting both routine balancing kit replenishment and new balancing system setups.

Technical Specifications

The table below summarizes the key specifications of the Honeywell Chadwick-Helmuth Model 10200 photocell probe.

Why Choose Seven Star LLC for the Chadwick-Helmuth 10200

A once-per-revolution phase timing sensor is a small but critical component in any rotor balancing setup, since the phase reading it provides is what lets the Vibrex, 4-200, or 8500C analyzer correctly interpret vibration data as an imbalance angle rather than just a raw amplitude. Before confirming an order, Seven Star LLC verifies which analyzer generation and rotor application, whether that is propeller, main rotor, or tail rotor balancing, your facility is working with, since mounting and signal characteristics can vary between these applications even when the sensor part number looks the same on paper.

For MRO facilities and operators across Oman and the wider GCC running balancing procedures across a mixed helicopter and propeller-driven aircraft fleet, we help plan sensor spares around your scheduled balancing work, since a faulty timing sensor can produce misleading phase data that leads a technician to chase a vibration problem that does not actually exist, wasting valuable hangar time. If your team is seeing inconsistent phase readings during a balancing procedure, we are glad to help troubleshoot whether the sensor itself, its mounting, or the analyzer configuration is the actual source of the issue before you commit to a replacement part.

Request a Quote for Honeywell/Chadwick 10200

Seven Star LLC invites aviation maintenance organizations and MRO facilities across Oman and the GCC to submit a formal RFQ for the Honeywell Chadwick-Helmuth Model 10200 photocell probe and compatible balancing equipment. We provide full technical datasheets on request, and our instrumentation division is available to confirm compatibility with your specific balance analyzer model. Backed by manufacturer datasheet documentation, Seven Star LLC supplies traceable balancing accessories on request, with manufacturer documentation and technical support for model selection.

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