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Cleanroom Control and Environmental Monitoring Systems
Illuminance Sensor
A ceiling or wall-mounted lux sensor that measures incident light for cleanroom illumination monitoring and dimming control.
- Cosine-Corrected Lux Measurement
- Low-Profile Optical Head
- 0-10 V or 4-20 mA Lux Signal
- Lighting Control Integration
Product Introduction
The cleanroom illuminance sensor uses a photodiode and optical diffuser to measure light arriving from a broad field of view. Cosine correction helps the response represent incident illuminance rather than only light perpendicular to the sensor. Range selection covers typical task-lighting and bright inspection environments. A standard analog or digital output supports light-level monitoring, daylight-responsive dimming and alarm reporting while the smooth white housing blends with clean ceilings.
Key Features
Selectable lux ranges preserve resolution in both normal work and high-illumination areas.
Low-profile white construction minimizes visual disruption on clean ceilings.
Analog and network outputs connect to lighting controls and environmental monitoring.
Customer Product Concerns
Illuminance depends on sensor orientation, shadows and surface reflections, so the measurement point must represent the actual working plane.
A sensor directly under one luminaire overstates the room's average light level.Representative placement and broad optical response reduce local hotspot bias.
Oblique light is under-read by a narrow-angle detector.A cosine-corrected diffuser captures light over a wider incidence angle.
One measurement range saturates in high-intensity inspection zones.Selectable lux ranges match the sensor to ambient or task-light applications.
Dimming causes visible hunting around the target level.Control deadband and time filtering prevent rapid response to small light fluctuations.
Typical Applications
Cleanroom task-light monitoringInspection-area illuminationDaylight-responsive dimmingLaboratory lighting verification
Technical Parameters
Typical construction values for a cleanroom ceiling illuminance sensor are listed below.
| Core Material | Silicon photodiode with optical diffuser in UV-stable polycarbonate housing |
|---|---|
| Panel Thickness | 25-45 mm sensor depth |
| Effective Width | 70-110 mm housing diameter |
| Maximum Length | Up to 130 mm overall housing dimension |
| Steel Facing Thickness | 0 mm; non-metallic optical enclosure |
| Core Density | 1180-1220 kg/m³ for polycarbonate housing material |
| Thermal Conductivity | 0.19-0.22 W/(m·K) for polycarbonate enclosure |
| Surface Finish | Matte white body with opal optical dome and discreet blue range mark |
| Joint Type | Twist-lock ceiling base or wall plate with rear pluggable signal terminals |
| Customization | Available based on the intended application and operating environment. |
Available Options
Multiple lux rangesCeiling or wall mountingVoltage or 4-20 mA outputModbus or BACnet communication
Planning a Illuminance Sensor specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
