Graywolf TVOC & Multi-Gas Portable Detection System
| Brand | Graywolf |
|---|---|
| Origin | USA |
| Distributor Status | Authorized Distributor |
| Product Origin | Imported |
| Model | Graywolf Series |
| Pricing | Available Upon Request |
Overview
The Graywolf TVOC & Multi-Gas Portable Detection System is a field-deployable, microprocessor-controlled environmental monitoring platform engineered for simultaneous real-time quantification of up to six gaseous analytes in a single measurement cycle. Utilizing electrochemical (EC), metal-oxide semiconductor (MOS), and photoionization detector (PID) sensor technologies—each selected and calibrated per target compound—the system delivers trace-level detection across a broad spectrum of hazardous airborne substances. Designed for compliance-driven field applications, it supports occupational exposure assessment, indoor air quality (IAQ) surveys, industrial hygiene audits, emergency response triage, and environmental site characterization. Its integrated architecture eliminates the need for multiple standalone instruments, reducing logistical overhead while maintaining analytical integrity under variable ambient conditions (10–95% RH, –10°C to +50°C operating range).
Key Features
- Multi-sensor modular design: Interchangeable probe assemblies enable rapid reconfiguration for different gas matrices—including toxic inorganics (Cl₂, H₂S, NH₃, NO₂, SO₂, O₃, CO, HCN), reactive halogens (F₂, HF, HCl), volatile organic compounds (TVOC via 10.6 eV PID), and specialty gases (EtO, SiH₄, ClO₂, THT, phosgene, arsine, hydrazine).
- Integrated Windows-based computing module: Embedded ARM processor with touchscreen LCD interface (640×480 resolution), supporting intuitive navigation, on-device data visualization, and context-aware help overlays.
- Comprehensive metadata capture: Geotagged measurements with user-defined annotations—including freehand sketching, imported floor plans, embedded photographs, voice memos, and typed field notes—all time-synchronized and stored within the native .GWD binary data file.
- Regulatory-grade calibration management: Onboard calibration log with timestamped records, user-initiated zero/span verification, customizable calibration intervals, and NIST-traceable certificate generation.
- Expandable reporting engine: Preloaded templates aligned with OSHA, NIOSH, ISO 16000-22, and EPA Method TO-17 reporting conventions; supports custom template authoring in RTF/HTML format with dynamic field insertion.
Sample Compatibility & Compliance
The system accommodates direct sampling from ambient air, ducted ventilation streams, and confined-space headspace without pre-concentration or thermal desorption. Sensor cross-sensitivity profiles are documented per IUPAC-recommended interference testing protocols. All factory calibrations comply with ASTM D6196-22 (Standard Practice for Selection of Sorbents, Sampling, and Thermal Desorption Analytical Methods for Volatile Organic Compounds) and ISO 8518:2021 (Air Quality — Performance Characteristics of Instruments for Measuring Gaseous Pollutants). Device firmware adheres to FDA 21 CFR Part 11 requirements for electronic records and signatures when used in GLP/GMP-regulated environments.
Software & Data Management
Data acquisition and post-processing occur via Graywolf’s proprietary FieldView™ software suite (Windows 10/11 compatible), which imports native .GWD files and exports CSV, PDF, and XML formats compliant with LIMS integration standards. The embedded OS includes Pocket Word, Pocket Excel, SMTP email client, and IE Mobile for secure report transmission. Audit trails record all user actions—including parameter changes, calibration events, and annotation edits—with immutable timestamps. Raw sensor voltage outputs, temperature/pressure compensation logs, and diagnostic flags are retained for forensic review.
Applications
- Occupational health & safety: Real-time TWA/STEL calculation per ACGIH TLVs® and OSHA PELs for multi-gas exposure scenarios.
- Hazardous materials response: First-responder deployment for chemical release incidents involving EtO sterilization facilities, semiconductor fab leaks (SiH₄, Cl₂), or wastewater treatment plant H₂S events.
- Building commissioning & IAQ certification: ASHRAE 62.1-2022-compliant TVOC baseline mapping and source identification.
- Environmental due diligence: Phase I ESA vapor intrusion screening for chlorinated solvents and petroleum hydrocarbons.
- Pharmaceutical facility monitoring: EtO residue verification in sterilization chambers and adjacent workspaces per ISO 10993-7.
FAQ
Does the system support automatic correction for humidity and barometric pressure?
Yes—integrated environmental sensors provide continuous compensation for relative humidity (±3% RH accuracy) and atmospheric pressure (±0.5 kPa), applied in real time to all gas concentration calculations.
Can sensor modules be calibrated in the field without external equipment?
Each sensor module includes onboard zero and span calibration routines; certified calibration gases (certified to ISO/IEC 17025) are required for span adjustment, but no external hardware interface is needed.
Is raw sensor output data accessible for third-party modeling?
FieldView™ exports unprocessed mV signals, temperature-compensated ADC counts, and full diagnostic registers in ASCII-delimited format for MATLAB, Python, or R-based secondary analysis.
What is the typical battery life during continuous operation?
With standard Li-ion battery pack, operational endurance exceeds 10 hours at 1 Hz sampling rate with backlight enabled; hot-swappable batteries allow uninterrupted field use.
How are firmware updates delivered and validated?
Updates are distributed as signed .CAB packages via Graywolf’s secure customer portal; cryptographic hash verification and rollback capability ensure integrity and regulatory continuity.
