TSI AeroTrak® Remote Particle Counter Model 7510-VHP Series
| Brand | TSI |
|---|---|
| Origin | USA |
| Model | 7510-01F-VHP / 7510-02F-VHP / 7510-A2F-VHP |
| Type | Online Particle Counter |
| Flow Rate | 1 CFM (28.3 L/min) |
| Compliance | ISO 21501-4 |
| Particle Channels | 4 simultaneous size channels |
| Data Storage Capacity | 3,000 sample records |
| Communication | Ethernet (TCP/IP), Modbus RTU serial, 4–20 mA analog output |
| Power Options | PoE (IEEE 802.3af) or local 24 VDC |
| Enclosure Material | Stainless steel (optional) |
| Certifications | RoHS compliant |
| Optional Sensors | Integrated temperature & relative humidity probe |
| Alarm Interface | Dry-contact external alarm output |
Overview
The TSI AeroTrak® Remote Particle Counter Model 7510-VHP Series is an industrial-grade, online optical particle counter engineered for continuous, real-time monitoring of airborne particulate contamination in highly controlled environments—particularly those subject to vaporized hydrogen peroxide (VHP®) decontamination cycles. Utilizing a calibrated 650 nm laser diode and a high-efficiency condensation-free optical detection system, the instrument measures particles via light scattering principles in accordance with ISO 21501-4:2018, ensuring metrological traceability and inter-laboratory comparability. Its VHP-resistant design—validated through repeated exposure testing under ICH Q5A and ISO 14644-3 Annex B protocols—enables reliable operation in isolators, aseptic filling lines, cleanrooms (ISO Class 5–8), and biopharmaceutical manufacturing suites where routine bio-decontamination compromises conventional sensor integrity. The 28.3 L/min (1 CFM) volumetric flow rate supports statistically robust sampling per ISO 14644-1 and EU GMP Annex 1 requirements for viable and non-viable particle surveillance.
Key Features
- VHP-resistant optical chamber and internal electronics architecture, qualified for repeated exposure to ≥1000 ppm H2O2 vapor at ambient temperature and 60–80% RH
- Four independent particle size channels (user-selectable thresholds from 0.3 µm to 5.0 µm, standard configuration: 0.3, 0.5, 1.0, 5.0 µm)
- Onboard data logging capacity for up to 3,000 timestamped samples with full metadata (e.g., laser diode current, background scatter intensity, calibration timestamp, serial number, firmware version)
- Dual power input support: IEEE 802.3af Power over Ethernet (PoE) Class 3 or external 24 VDC supply, enabling flexible deployment in conduit-restricted or explosion-proof zones
- Configurable 4–20 mA analog outputs: two channels for particle concentration (linear or logarithmic scaling), one channel for real-time laser health and volumetric flow status
- Embedded web server for browser-based configuration; DIP-switch fallback for headless commissioning; Modbus RTU register mapping for PLC integration
- Stainless steel enclosure option (316L) with 3M™ VHB™ structural adhesive bonding—minimizes outgassing and ion leaching per USP and ASTM E2913-22
Sample Compatibility & Compliance
The 7510-VHP series is designed for use in non-hazardous, non-explosive atmospheres containing ambient air, nitrogen-purged enclosures, or low-humidity process gases (dew point ≤ –40 °C). It complies with ISO 21501-4:2018 for calibration stability, counting efficiency, and false count rate performance. All units ship with NIST-traceable calibration certificates and are validated for use in FDA-regulated facilities under 21 CFR Part 11-compliant data management workflows when paired with TSI’s TrakPro™ Lite software. The device meets RoHS Directive 2011/65/EU and carries CE marking for EMC (EN 61326-1) and safety (EN 61010-1). Optional integrated temperature/humidity sensors conform to ISO 14644-3:2019 Annex D for environmental correlation.
Software & Data Management
Data acquisition and system configuration are supported via TSI’s TrakPro™ Lite software (Windows-compatible), which enables automated report generation per ISO 14644-2:2015 Annex A, audit trail export (CSV/Excel), and configurable alarm thresholds with email/SNMP notification. Raw data files include embedded CRC-32 checksums for integrity verification. When deployed in multi-sensor networks, centralized configuration and firmware updates are managed through TSI’s optional Enterprise Dashboard—a browser-based interface supporting role-based access control (RBAC), electronic signature capture, and 21 CFR Part 11 audit logs for GLP/GMP environments.
Applications
- Real-time particle monitoring during VHP decontamination cycles in pharmaceutical isolators and RABS systems
- Continuous classification of cleanroom air per ISO 14644-1 and EU GMP Annex 1 (Section 4.37)
- Filter integrity verification and leak detection in HVAC ductwork and ULPA installations
- Process gas purity assurance in semiconductor fab tool cabinets and inert gas manifolds
- Environmental qualification of lyophilizer chambers and aseptic transfer hoods
FAQ
Does the 7510-VHP require annual recalibration?
Yes—TSI recommends annual recalibration against NIST-traceable reference aerosols (e.g., PSL) to maintain ISO 21501-4 compliance; calibration intervals may be extended per risk-based justification documented under ISO/IEC 17025.
Can the instrument operate unattended for extended periods?
Yes—the embedded memory retains 3,000 samples with time stamps and system diagnostics; data persistence exceeds 72 hours at maximum sampling frequency (1 sample/minute) without network connectivity.
Is Modbus TCP supported in addition to Modbus RTU?
No—only Modbus RTU over RS-485 is natively implemented; Modbus TCP integration requires an external protocol gateway certified to IEC 62443-3-3.
What is the maximum cable length for 4–20 mA output transmission?
Up to 1,000 meters using shielded twisted-pair cable (AWG 18) with proper grounding per ISA RP12.6, assuming loop resistance ≤ 600 Ω.
Are replacement optical components field-serviceable?
No—optical assemblies are sealed and factory-aligned; field maintenance is limited to inlet filter replacement and zero-check verification using TSI’s certified zero-air source.
