REFERENCE ENVELOPE · FW-APC16Analog Passthrough Converter
An inline 16-bit converter that maps one instrument signal into a user-defined 0–10 V or 4–20 mA output.
Not available for sale
Work in progress. Contact Ferox Works to discuss the development direction or a related custom requirement.
Design overview
The proposed converter has two ports: one locking DE-9 accepts the source instrument signal, and an opposing DE-9 carries the translated output. A USB-C configuration interface defines the engineering variable, input calibration, scaling curve, output range, clamping, and fail-safe behavior. It is intended to adapt existing instruments while retaining their controls and reducing the need for custom analog circuits.
Technical specifications
Development targets only. Electrical, mechanical, firmware, safety, compliance, and performance claims remain subject to prototype validation.
- Development state
- Architecture and prototype planning
- Signal path
- One input → user-defined transform → one output
- Connectors
- 2 × locking DE-9 total · one on each opposing side
- Conversion
- 16-bit ADC + 16-bit DAC target resolution
- Input profiles
- Configurable voltage or current input scaling; ranges finalized during prototype validation
- Output modes
- Programmable 0–10 V or 4–20 mA
- Configuration
- USB-C interface for units, calibration points, transfer curve, limits, and fail-safe output
- Response target
- Sub-5 ms end-to-end update target; performance not yet validated