Laser Particle Sensor Model 3720-06
High-flow remote laser particle sensor with internal pump — 0.3 µm sensitivity at 0.1 CFM with Ethernet, suitable for continuous monitoring at cleanroom critical control points and production zones.
Products
| Product | Product line | Application area | Selection note |
|---|---|---|---|
| Laser Particle Sensor Model 3720-06 | Remote & Continuous Particle Monitoring | Particle Counting & Monitoring | Select options, accessories and calibration scope against the measurement procedure. |
Key Features
RS-485 multi-drop for scalable monitoring networks
RS-485 multi-drop network enables multiple 3720-06 sensors to be connected on a single twisted-pair cable run — reducing installation cost and cabling complexity in multi-room cleanroom monitoring networks.
Compact fixed-point format — low-intrusion installation
The compact format allows installation in ceiling tiles, wall panels and HVAC supply plenums without visible intrusion into the cleanroom environment — reducing potential contamination sources from monitoring equipment and maintaining cleanroom aesthetic.
ISO 21501-4 calibrated sensor
Factory-calibrated to ISO 21501-4 with NIST-traceable certificate — satisfying calibrated instrument documentation requirements for ISO 14644-2 cleanroom monitoring programmes.
Technical Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| OPTICAL SENSOR | ||
| Detection | — | Single-particle optical scattering — semiconductor laser |
| Min. particle size | µm | 0.3 at 50% counting efficiency |
| Channels | — | 6: 0.3 / 0.5 / 1.0 / 3.0 / 5.0 / 10.0 µm |
| Max. concentration | particles/L | 2,000,000 |
| FLOW | ||
| Sample flow | LPM | 0.1 CFM / 2.83 LPM — internal pump |
| COMMUNICATION | ||
| Interface | — | RS-485 multi-drop — for distributed monitoring network |
| Protocol | — | Modbus or proprietary — confirm with CRMS configuration |
| PHYSICAL | ||
| Installation | — | Compact fixed-point remote sensor — wall or ceiling mount |
| Power | V | 24 V DC (typical) or local AC |
| CALIBRATION | ||
| Standard | — | NIST-traceable ISO 21501-4 calibration certificate |
Values are summarized for page-level selection. Confirm final model configuration, accessories and calibration certificate before order placement.
Applications
Distributed GMP cleanroom monitoring
Fixed-point remote OPC nodes in pharmaceutical GMP cleanroom monitoring networks — continuously feeding particle concentration data to CRMS for EU GMP Annex 1 Grade B/C/D monitoring.
Fab distributed monitoring
Distributed particle monitoring in semiconductor fab cleanrooms — RS-485 network connects to fab monitoring server for real-time Class 4–7 environmental data.
ISO 14644-2 monitoring
Fixed monitoring for ISO Class 7–8 medical device cleanrooms under ISO 14644-2 periodic monitoring programme.
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