Boante SC800MGAR Series Multi-Gas Automated Acidification & Oxygenation Regulator
| Brand | Boante |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| CO₂ Control Range | Ambient +100 ppm to 2000 ppm |
| O₂ Control Range (MGAR-G) | 0–21% vol |
| (MGAR-D) | 21–100% vol |
| CO₂ Detection Accuracy | ±1 ppm |
| O₂ Detection Accuracy | ±0.1% vol |
| CO₂ Control Precision | ±3% of setpoint |
| O₂ Control Precision | ±5% of setpoint |
| CO₂ Sensor | NDIR with Vaisala CARBOCAP® module |
| O₂ Sensor | Electrochemical cell (RAE Systems) |
| N₂ Input Max Flow | 1.6 L/min |
| CO₂ Output Flow Range | 0.16–1.6 L/min (customizable up to 6 L/min) |
| O₂/Air Output Flow | Adjustable via calibrated rotameter |
| Mixing Chamber Pressure Range | −10 to +10 kPa |
| CO₂ Response Time (0→2000 ppm) | ≤5 s |
| O₂ Response Time (0→21%) | ≤15 s |
| CO₂ Regulation Response Time (100 ppm step) | 15 s |
| O₂ Regulation Response Time (1% step) | 15 s |
| Display | 7-inch capacitive touchscreen |
| Control Algorithm | PID + adaptive fuzzy logic |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Power Consumption | 200 W |
| Operating Temperature | 10–30 °C |
| Humidity Range | 30–80% RH (non-condensing) |
| Enclosure Material | Stainless steel with corrosion-resistant white epoxy coating |
| Calibration Interval | 12 months |
| Compatible Media | Freshwater, synthetic seawater, low-salinity and high-salinity seawater (≤45‰) |
Overview
The Boante SC800MGAR Series Multi-Gas Automated Acidification & Oxygenation Regulator is an engineered solution for precise, dynamic control of dissolved gas partial pressures in aquatic simulation systems. Designed specifically for marine biogeochemistry, limnology, aquaculture physiology, and climate-driven ecosystem research, the SC800MGAR operates on a nitrogen-balanced gas mixing principle—using ultra-pure N₂ as the carrier matrix while delivering programmable, trace-level injections of CO₂ and O₂ into closed-loop water circulation or headspace environments. Its core function is to replicate physicochemical gradients observed under ocean acidification (OA), hypoxia, hyperoxia, and multi-stressor scenarios at molecular resolution. Unlike conventional gas blending units, the SC800MGAR integrates real-time feedback from high-fidelity infrared (NDIR) and electrochemical sensors with adaptive flow regulation, enabling stable, reproducible gas concentration outputs across extended experimental durations—from hours to weeks—without manual intervention.
Key Features
- Industrial-grade embedded controller with anti-interference firmware architecture, achieving ppm-level stability in CO₂ output and sub-percent resolution in O₂ modulation.
- Programmable multi-stage gas profiles: supports up to 96 discrete time segments per 24-hour cycle, allowing independent scheduling of CO₂, O₂, and N₂ setpoints with synchronized ramping, hold, and decay functions.
- 7-inch capacitive touchscreen interface with intuitive navigation tree, real-time graphical overlay of sensor readings, live flow visualization, and one-touch parameter cloning across experiments.
- Onboard data management system featuring high-speed flash memory, timestamped logging (1 Hz default), automatic backup upon power interruption, and export-ready CSV/Excel-compatible datasets with metadata tagging (e.g., experiment ID, operator, calibration status).
- Vaisala CARBOCAP® CO₂ sensor and RAE Systems electrochemical O₂ sensor—both temperature- and pressure-compensated—integrated with proprietary environmental drift correction algorithms to maintain long-term accuracy under variable lab conditions.
- Optimized laminar-flow mixing chamber with fluid-dynamic geometry ensuring <10 ms residence time and <±0.5% spatial concentration variance across outlet streams.
- Dual-safety monitoring: continuous vacuum/pressure sensing within the mixing cavity coupled with dual-threshold alarm logic (audible + visual) for over-pressure, under-vacuum, sensor fault, and out-of-range concentration events.
- Oil-free DC diaphragm pump assembly compliant with ISO 8573-1 Class 0 air purity standards; acoustic emission <45 dB(A) at 1 m distance; flow stability ±0.1% FS over rated range.
Sample Compatibility & Compliance
The SC800MGAR is validated for use with freshwater, artificial seawater formulations, and natural seawater up to 45‰ salinity—compatible with recirculating mesocosms, benthic chambers, respirometers, and flow-through aquarium systems. All wetted materials—including stainless-steel manifolds, PTFE-sealed valves, and fluoropolymer tubing—are certified for chemical resistance against acidic CO₂-saturated solutions and chloride-rich media. The device meets CE marking requirements for electromagnetic compatibility (EN 61326-1) and low-voltage safety (EN 61010-1). While not classified as medical or pharmaceutical equipment, its data integrity framework—including time-stamped audit trails, user-access logs, and non-erasable configuration history—supports alignment with GLP principles and facilitates traceability during peer-reviewed publication or regulatory submission workflows.
Software & Data Management
No external software installation is required: all configuration, monitoring, and data retrieval occur through the embedded web-enabled HMI. Logged data are stored locally in encrypted binary format and can be exported via USB port or Ethernet (optional RS-485/Modbus TCP interface available). Each dataset includes embedded calibration certificates (date, standard gas used, deviation values), sensor health diagnostics (e.g., zero drift, span error), and system event markers (e.g., “O₂ setpoint adjusted at t=14:22:03”). For laboratories operating under FDA 21 CFR Part 11 requirements, optional firmware upgrade enables electronic signature capture, role-based access control, and immutable audit trail generation—fully compatible with laboratory information management systems (LIMS) integration via RESTful API.
Applications
- Ocean acidification and deoxygenation studies: controlled replication of IPCC RCP scenarios (e.g., pH 7.6–7.8, pO₂ 2–4 kPa) in microcosm and mesocosm experiments.
- Fish and invertebrate hypoxia tolerance assays: graded O₂ reduction protocols (e.g., 21% → 2% over 72 h) with concurrent CO₂ modulation to isolate respiratory vs. acid-base stress responses.
- Phytoplankton acclimation experiments: multi-gas perturbation testing of carbon-concentrating mechanisms under varying pCO₂/pO₂ ratios.
- Aquaculture optimization trials: fine-tuned O₂ enrichment in high-density larval rearing tanks without supersaturation risk.
- Biogeochemical sensor validation: provision of certified reference gas mixtures for calibrating in situ pCO₂ and DO probes.
FAQ
What is the recommended calibration frequency for the CO₂ and O₂ sensors?
Annual calibration is specified under normal laboratory conditions; however, verification using certified standard gases (e.g., 500 ppm CO₂ in N₂, 5% O₂ in N₂) is advised before each critical experiment series.
Can the SC800MGAR operate unattended for multi-day experiments?
Yes—the system supports fully autonomous execution of preloaded programs, including automatic recovery after brief power loss, thanks to its internal real-time clock and non-volatile memory.
Is it possible to integrate the SC800MGAR with third-party environmental controllers or DAQ systems?
Standard analog outputs (0–10 V / 4–20 mA) are provided for CO₂ and O₂ concentration signals; optional digital interfaces (RS-485 Modbus RTU, Ethernet TCP/IP) enable bidirectional communication with PLCs or SCADA platforms.
Does the unit support custom gas blends beyond CO₂/O₂/N₂?
The base configuration is optimized for ternary mixing; however, modular expansion ports allow integration of additional gas channels (e.g., CH₄, H₂S) via OEM collaboration—subject to safety review and hardware adaptation.
How is moisture or condensation managed in the gas stream?
A dedicated inline desiccant cartridge (replaceable every 6 months) is installed upstream of the mixing chamber; optional heated sample lines are available for applications requiring dew-point control below 5 °C.
