This repository contains a LabVIEW-based Human–Machine Interface (HMI) developed between 2017–2018 for an academic bioreactor laboratory, with a strong focus on process instrumentation, supervision, and operator interaction.
Although originally developed for a laboratory environment, the system addresses challenges commonly found in industrial process monitoring, such as sensor supervision, threshold-based control, data logging, and safe operator operation.
The repository includes the original LabVIEW code and a complete operations manual used by laboratory users.
/App bioreactor→ LabVIEW VIs for HMI, data acquisition, and control logic./Manual de operaciones bioreactor→ Operation manual and supporting documentation (Spanish).
Legacy project – developed between 2017–2018, completed and archived.
The system centralizes the supervision of two independent bioreactors, each instrumented with:
- pH transmitter
- Dissolved Oxygen (DO) transmitter
The HMI interfaces with two Emerson Rosemount 1056 transmitters, used for pH and Dissolved Oxygen measurement, providing a unified monitoring and control interface.
A National Instruments NI USB-6002 data acquisition device is used to receive pH and Dissolved Oxygen measurements from the transmitters and to control the peristaltic pumps through digital on/off outputs.
The system integrates Emerson Rosemount 1056 transmitters, a National Instruments NI USB-6002 data acquisition device, and a supervisory HMI developed in LabVIEW.
pH and Dissolved Oxygen signals are acquired via the NI USB-6002, processed in LabVIEW for visualization and data logging, and used to drive the on/off control of peristaltic pumps through digital outputs.
Signal flow and connection overview between transmitters, data acquisition hardware, and HMI.
- On/Off control of peristaltic pumps
- Manual / Automatic operation modes
- Threshold-based pH control logic
- Operator-selectable control direction (above or below threshold)
This strategy prioritizes operational simplicity, safety, and robustness, which are key requirements in laboratory, pilot-plant, and auxiliary industrial systems.
- Centralized monitoring of two Emerson Rosemount 1056 transmitters
- Real-time visualization of pH and Dissolved Oxygen
- Trend plots for both variables
- Threshold and parameter configuration
- Sensor calibration using linear adjustment
- Data acquisition with logging to
.xlsxfiles - Centralized operator control panel
- Visual indicators for pump status and operating mode
Interface layout without active signals (idle) and HMI operating with live pH and Dissolved Oxygen signals.
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A complete Operations Manual is included in this repository, originally developed for laboratory deployment.
The manual covers:
- System overview and application purpose
- Detailed HMI description
- General operating procedures
- Parameter configuration and sensor calibration
- Sampling period configuration
- Data logging workflow
- Manual and automatic pH control operation
All figures and interface captures included in the manual correspond to the original application used in a real academic laboratory environment.
📄 See:
Manual_Operaciones_Biorreactor.pdf (Spanish)
- LabVIEW 2013
The concepts and architecture implemented in this project are directly transferable to industrial environments, including:
- Process instrumentation and sensor supervision
- Operator-focused HMI design
- Threshold-based control strategies
- Manual / automatic operation modes
- Data acquisition and historical logging
- Safe handling of process actuators
These principles are commonly applied in mining, chemical processing, water treatment, and energy systems, particularly in pilot plants, test benches, and auxiliary process units.
- Importance of clear operator-focused HMI design
- Robust handling of industrial transmitter signals
- Benefits of centralized supervision for multiple process units
- Practical considerations for threshold-based control in laboratory systems
This project is provided for documentation and reference purposes only.
- Originally developed for an academic laboratory environment.
- Not intended for direct industrial deployment without further engineering, validation, and safety assessment.
- Hardware references correspond to the original experimental setup.
The repository aims to showcase instrumentation, control logic, and HMI design practices, rather than a production-ready system.
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MIT License