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Cleanroom Control and Environmental Monitoring Systems
Temperature and Humidity Control System
A precision environmental controller that coordinates room sensing, cooling, reheating, humidification and dehumidification without allowing the loops to oppose one another.
- Coordinated Temperature and RH
- High-Stability Room Sensing
- Heating and Cooling Sequencing
- Humidity Limit Protection
Product Introduction
The temperature and humidity control system uses stable room transmitters and sequenced HVAC outputs to maintain two strongly coupled variables. Cooling capacity can remove sensible and latent load, while reheating restores supply-air temperature after dehumidification. Humidifier commands are limited when duct or room conditions could create condensation. Separate occupied, setback and recovery modes allow the cleanroom to reach operating conditions predictably without excessive simultaneous heating and cooling.
Key Features
Sequenced outputs prevent humidification and dehumidification from running against each other.
Dew-point and high-limit logic protects ductwork from unwanted moisture accumulation.
Trendable setpoints, outputs and alarms make slow environmental drift easier to diagnose.
Customer Product Concerns
Temperature and relative humidity interact through cooling, reheating and process moisture, so independent loops often waste energy or oscillate.
Cooling lowers temperature but leaves relative humidity unstable after reheating.A coordinated sequence manages cooling, reheat and moisture removal as one control strategy.
Room sensors drift and create disagreement between control and monitoring values.Stable matched transmitters with accessible calibration points keep the control reference consistent.
Humidifier output causes condensation in cooler duct sections.Dew-point and duct high-limit signals clamp humidifier demand before moisture deposits.
The room takes too long to recover after a production shutdown.A dedicated recovery mode applies controlled maximum outputs until both variables enter their operating bands.
Typical Applications
Pharmaceutical processing roomsMedical-device production roomsPrecision electronics productionControlled stability laboratories
Technical Parameters
Typical construction for a cleanroom temperature and humidity control panel with room transmitter is listed below.
| Core Material | Powder-coated steel control enclosure with FR-4 controller board and polymer room transmitter |
|---|---|
| Panel Thickness | 160-300 mm enclosure depth |
| Effective Width | 400-800 mm panel width |
| Maximum Length | Up to 1200 mm panel height |
| Steel Facing Thickness | 1.2-1.5 mm powder-coated steel enclosure |
| Core Density | 7800-8050 kg/m³ for steel panel components |
| Thermal Conductivity | 45-60 W/(m·K) for the steel enclosure |
| Surface Finish | Fine-textured light-gray powder coat with white room sensor and color HMI |
| Joint Type | DIN-rail control panel with removable HVAC output terminals and network connection |
| Customization | Available based on the intended application and operating environment. |
Available Options
Cooling and reheat stagesSteam or ultrasonic humidifier outputDew-point high limitRemote room transmitter
Planning a Temperature and Humidity Control System specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
