Cleanroom Testing and Validation Instruments

Remote Particle Counter

A compact fixed-point airborne particle sensor for continuous cleanroom monitoring and direct integration with facility monitoring systems.

Fixed-point sensing reveals continuous particle trends.
Local buffering protects records through network outages.
Pump and FMS interfaces fit varied monitoring layouts.

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Product Introduction

This remote particle counter is designed for permanent installation at critical monitoring locations where continuous, unattended data is required. A long-life laser sensor measures airborne particles while onboard diagnostics supervise flow, laser condition and communication status. Pumped and central-vacuum configurations allow the sampling architecture to match the facility, and buffered records help preserve measurements if network connectivity is temporarily interrupted.

Key Features

Compact fixed-point enclosure fits close to filling lines, process tools and other constrained monitoring locations.

Continuous second-by-second measurement supports early detection of adverse contamination trends.

Local data buffering protects records during short facility-network interruptions.

Ethernet, serial, analog or wireless options simplify integration with different monitoring platforms.

Pumped and external-vacuum variants support centralized or distributed sampling designs.

Status indicators and predictive diagnostics make maintenance conditions visible before data is compromised.

Customer Product Concerns

Critical locations need uninterrupted long-term trends when networks drop, together with interfaces that keep platform integration and sensor maintenance manageable.

A network outage could create gaps in a continuous environmental record.Onboard buffering retains time-sequenced samples for later transfer when communication is restored.

Sampling tubing and external vacuum conditions may alter the required flow.Select integrated-pump or critical-orifice configurations and verify the installed sample path against the intended flow rate.

Cleaning fluid can enter an exposed inlet during room sanitation.A sealed inlet design and detectable protective cap reduce accidental liquid ingress during cleaning.

Facilities use different control and data-acquisition protocols.Configurable Ethernet, serial, analog and wireless outputs provide practical paths into new or existing monitoring systems.

Typical Applications

Continuous non-viable monitoring in aseptic filling areasFixed-point monitoring in semiconductor and display manufacturingIntegration with cleanroom facility monitoring systemsParticle trending at isolators and restricted-access barrier systemsMonitoring critical process zones with limited installation space

Technical Parameters

The table summarizes representative enclosure materials, sampling or vacuum connections, and communication interfaces for a fixed remote sensor, with the configuration selected to match the monitoring architecture.

Core Material	Anodized aluminum or stainless-steel instrument enclosure containing a laser optical sensor and electronic flow-control assembly
Panel Thickness	Typically 1.0–2.0 mm for the formed protective enclosure
Effective Width	Approximately 115–175 mm according to pump and interface configuration
Maximum Length	Approximately 200–320 mm including the fixed enclosure but excluding external tubing
Steel Facing Thickness	Approximately 1.0–1.5 mm where a stainless-steel washdown enclosure is specified
Core Density	Not applicable; no insulation-panel core is used (0 kg/m³)
Thermal Conductivity	Approximately 14–16 W/(m·K) for stainless steel or 160–205 W/(m·K) for aluminum enclosure sections
Surface Finish	Smooth anodized or passivated wipe-clean finish with sealed indicator and connector interfaces
Joint Type	Sealed sampling inlet with Ethernet, serial Modbus, 4–20 mA or wireless communication as configured
Customization	Available based on the intended application and operating environment.

Available Options

2.83 or 28.3 L/min flow configuration0.2, 0.3 or 0.5 µm minimum sensitivityIntegrated pump or central-vacuum configurationEthernet, serial Modbus, 4–20 mA or wireless outputVHP-resistant optical and enclosure configurationTemperature and relative-humidity probe input

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