RWD R510-07 Five-Channel Anesthesia Gas Flow Meter
| Brand | RWD |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | R510-07 |
| Flow Range | 0–1 L/min per Channel |
| Number of Channels | 5 |
| Display | Digital LED per Channel |
| Power Supply | DC 24 V |
| Output Interface | Optional RS-485 (Modbus RTU) |
| Compliance | CE-marked for laboratory use |
| Calibration | Factory-calibrated per channel with traceable documentation |
Overview
The RWD R510-07 Five-Channel Anesthesia Gas Flow Meter is an engineered solution for precision-controlled, parallel delivery of medical-grade oxygen or medical air to up to five laboratory animals during concurrent surgical or physiological procedures. Designed specifically for preclinical research environments—including rodent models in neuroscience, cardiovascular pharmacology, and toxicology studies—the device operates on the principle of thermal mass flow measurement, providing real-time, linear analog response to gas flow rate changes across each independent channel. Unlike single-channel meters requiring sequential animal handling, the R510-07 enables synchronized anesthesia administration while preserving experimental integrity through channel-isolated flow regulation. Its architecture supports both continuous-flow and intermittent-flow protocols common in inhalational anesthetic delivery systems (e.g., isoflurane vaporizer-coupled setups), and is compatible with standard small-animal anesthesia machines and nose-cone or intubation-based delivery interfaces.
Key Features
- Five independently calibrated thermal mass flow sensors—each with full-scale range of 0–1 L/min and ±2% reading accuracy (typical) at 23 °C and 101.3 kPa ambient conditions
- Digital LED display per channel for immediate visual verification of instantaneous flow rate; no shared display multiplexing
- Individual mechanical flow control valves integrated into each gas path—enabling manual fine-tuning without software dependency
- Robust aluminum alloy chassis with ESD-safe surface finish, designed for integration into laminar flow hoods, stereotaxic workstations, and ISO Class 5/7 cleanroom-compatible lab benches
- DC 24 V power input with overvoltage and reverse-polarity protection; optional RS-485 Modbus RTU interface for centralized data logging via LabVIEW, MATLAB, or custom SCADA systems
- Factory calibration traceable to NIM (National Institute of Metrology, China); calibration certificates provided per unit with serial-number-matched sensor IDs
Sample Compatibility & Compliance
The R510-07 is validated for use with medical oxygen (≥99.5% purity), compressed medical air (ISO 8573-1 Class 1:2:1), and nitrogen-diluted anesthetic carrier gases. It supports flow rates appropriate for mice (15–30 g), rats (200–500 g), and rabbits (2–4 kg) under standard inhalational anesthesia protocols. Each channel’s gas path is constructed from stainless steel 316L and PTFE-lined fittings to prevent adsorption, corrosion, or outgassing—critical for maintaining gas composition fidelity during long-duration experiments. The device complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and bears CE marking under the EU Laboratory Equipment Directive. While not FDA-cleared as a medical device, it meets GLP-aligned documentation requirements for audit-ready preclinical study records per OECD Principles of Good Laboratory Practice.
Software & Data Management
The R510-07 operates in standalone mode without mandatory software, but its optional RS-485 interface enables bidirectional communication for automated data acquisition. When connected to a host PC or PLC, users can log time-stamped flow values (1 Hz default sampling) per channel, trigger alarms upon deviation beyond user-defined thresholds (±50 mL/min), and export CSV-formatted datasets compliant with 21 CFR Part 11 Annex 11 metadata requirements—including operator ID, timestamp, instrument serial number, and calibration status flags. Firmware updates are performed via UART bootloader; version history and cryptographic checksums are retained in non-volatile memory for GxP traceability.
Applications
- Parallel induction and maintenance of anesthesia in cohort-based behavioral or electrophysiological studies
- Controlled hypoxia or hyperoxia exposure experiments requiring precise O2 fraction modulation across multiple subjects
- Pharmacokinetic modeling where inter-animal variability must be minimized via identical gas delivery dynamics
- Validation of ventilator settings or breathing circuit resistance in rodent respirometry rigs
- Training platforms for veterinary anesthesiology—demonstrating multi-subject flow management principles
FAQ
Is the R510-07 suitable for use with volatile anesthetics such as isoflurane or sevoflurane?
Yes—provided the vaporized agent is delivered downstream of the flow meter via a dedicated vaporizer; the R510-07 measures carrier gas (O2/air) flow only and is not exposed to liquid-phase or high-concentration vapor.
Can individual channels be disabled or re-ranged for lower flow applications?
No—each channel is fixed at 0–1 L/min. For sub-100 mL/min precision, RWD recommends the R510-09 dual-channel variant (0.1–1 L/min range) instead.
Does the unit include NIST-traceable calibration documentation?
It includes factory calibration certificates traceable to China’s National Institute of Metrology (NIM); NIST-traceable recalibration services are available through authorized RWD service centers upon request.
What maintenance intervals are recommended?
Visual inspection and leak testing before each experimental session; full sensor verification annually or after 500 operational hours—whichever occurs first.
Is the device compatible with negative-pressure anesthesia scavenging systems?
Yes—its pressure drop across each channel remains below 150 Pa at 1 L/min, ensuring compatibility with standard active and passive scavenging interfaces without flow disruption.
