English Product Name

Overview

The Sable Systems International Multi-Channel Animal Respirometry System is a precision-engineered platform for quantitative measurement of oxygen consumption (VO₂), carbon dioxide production (VCO₂), respiratory exchange ratio (RER), and water vapor flux (VH₂O) in freely moving or restrained animals. Based on open-flow respirometry principles, the system employs paramagnetic O₂ analysis and non-dispersive infrared (NDIR) CO₂ detection to deliver high-fidelity metabolic data under controlled environmental conditions. Designed for rigorous physiological and ecological research, it supports real-time, continuous monitoring across multiple independent channels—enabling parallel assessment of up to seven individual subjects within a single experimental run. The architecture adheres to established respirometric standards defined in ASTM E2573-21 (Standard Guide for Measurement of Metabolic Rates in Small Mammals and Insects) and aligns with GLP-compliant data acquisition workflows required for preclinical and regulatory submissions.

Key Features

• Modular multi-channel configuration: scalable from 1 to 8 channels; standard configurations support simultaneous measurement of 7 animals via independent gas pathways and dedicated analyzers
• High-stability paramagnetic O₂ analyzer: 0–100% range, <0.1% full-scale accuracy, <7 s response time (t₉₀), <0.01% drift over 24 h, temperature- and pressure-compensated output
• NDIR CO₂ analyzer with dual-range capability: 0–5% and 0–15% full-scale options; resolution ≤0.001% (1 ppm); noise <2 ppm RMS; 24 h drift <0.002% FS; software-based thermal compensation
• Ultra-sensitive CO₂ option (0–0.5% range): sub-ppm resolution (0.1 ppm), optimized for micro-organisms, Drosophila, ticks, mites, and other minute arthropods
• RH-300 dew-point hygrometer: 0.2–100% RH range, 0.001% resolution, integrated into water vapor correction algorithms for accurate RER calculation
• SS3 secondary sampling module: includes vacuum pump, precision needle valve, and calibrated mass flow meter (0–2000 mL/min), enabling stable, low-pulsation airflow control
• Insect-grade glass respirometry chambers: flame-polished borosilicate construction with Viton® low-permeability gaskets to minimize CO₂ and H₂O adsorption/diffusion artifacts

Sample Compatibility & Compliance

The system accommodates a broad spectrum of animal models—from Drosophila melanogaster and Tribolium castaneum to rodents, lagomorphs, and medium-sized mammals—via application-specific chamber designs. All gas-handling components comply with ISO 8573-1:2010 (compressed air purity classes) and meet material compatibility requirements per USP . Data integrity protocols conform to FDA 21 CFR Part 11 for electronic records and signatures, including audit trail logging, user authentication, and immutable raw-data archiving. System validation documentation supports IQ/OQ/PQ execution per GAMP 5 guidelines.

Software & Data Management

Data acquisition and analysis are managed through ExpeData™ v5.x software—a Windows-based platform supporting real-time visualization, automated RER calculation (VCO₂/VO₂), baseline correction, drift compensation, and export to CSV, MATLAB (.mat), or HDF5 formats. The software implements built-in calibration wizards compliant with ISO/IEC 17025:2017 Annex A.3, stores instrument metadata with each dataset, and generates timestamped, digitally signed reports suitable for peer-reviewed publication and regulatory review. Optional add-ons include batch-processing modules for circadian rhythm analysis and integration with third-party environmental controllers (e.g., temperature/humidity chambers).

Applications

• Ecophysiology: thermal performance curves, metabolic scaling relationships, and climate-change impact modeling in ectotherms
• Medical entomology: insecticide resistance profiling via metabolic rate shifts in vector species (e.g., Anopheles, Aedes)
• Nutritional physiology: substrate utilization analysis during fasting, diet manipulation, or pharmacological intervention
• Toxicology: sublethal metabolic disruption assessment following exposure to environmental contaminants
• Behavioral energetics: coupling of locomotor activity (via optional IR beam break or video tracking sync) with real-time VO₂/VCO₂
• Comparative immunometabolism: quantifying immune activation costs in model organisms under pathogen challenge

FAQ

What is the maximum number of animals that can be measured simultaneously?

Up to seven individuals can be assessed concurrently using the 8-channel configuration (one channel reserved for reference or background measurement).

Can the system measure both CO₂ and O₂ without water vapor correction?

Yes—though water vapor correction is strongly recommended for RER accuracy; the RH-300 hygrometer integrates automatically when enabled.

Is calibration traceable to NIST standards?

All gas analyzers ship with factory calibration certificates traceable to NIST Standard Reference Materials (SRMs) 1692a (O₂) and 1695 (CO₂).

Does the software support automated peak detection for intermittent breathing patterns?

Yes—ExpeData™ includes configurable breath-by-breath analysis tools optimized for discontinuous ventilation in insects and hibernating mammals.

Are custom chamber geometries available for non-standard species?

Sable Systems offers OEM chamber design services, including CFD-validated airflow modeling and material compatibility testing for novel applications.