A cleanroom differential pressure transmitter 0-85 Pascal (also known as air differential pressure sensor, gas differential pressure sensor, or AHU differential pressure sensor) is a specialized device designed to measure and monitor the pressure difference between two points in cleanroom pressure control applications.

It plays a critical role in maintaining sterile conditions, preventing dust and microorganisms from entering, and ensuring compliance with GMP, ISO 14644, WHO, and FDA standards in pharmaceutical, medical device, semiconductor, and food industries.

Working Principle of a Cleanroom Differential Pressure Sensor

The sensor operates by comparing the pressure between two environments (positive or negative pressure). When a pressure difference is detected, the device converts it into an electrical signal (0–10 V, 4–20 mA, Modbus, etc.), which can be displayed locally or transmitted to a BMS/SCADA system.

Positive pressure cleanrooms: Prevents dust and bacteria from entering (commonly used in pharmaceutical and electronics industries).

Negative pressure cleanrooms: Prevents hazardous particles or pathogens from escaping (used in isolation rooms and biosafety laboratories).

Applications

Pharmaceutical industry: Monitor pressure between different cleanroom classes.
Hospitals & laboratories: Maintain biosafety in isolation rooms with negative pressure.
Electronics & semiconductors: Ensure dust-free chip and microcircuit production.
Food industry: Maintain hygienic production conditions and prevent cross-contamination.

Key Advantages

High accuracy, capable of measuring very small pressure ranges (±25 Pa up to several thousand Pa).
Compact design, easy installation on walls or ducts.
Optional LCD display for direct local reading.
Multiple output signals for easy integration with BMS/PLC systems.
Stable and durable operation in cleanroom environments.

Benefits

Quality assurance: Compliance with GMP, ISO, FDA requirements.
Safety: Prevent cross-contamination and airborne hazards.
Cost saving: Continuous monitoring reduces risk of product rejection.
Automation: Seamless integration into building management systems.

A cleanroom differential pressure sensor is an indispensable device in modern HVAC cleanroom systems. Its precision, continuous monitoring capability, and easy integration help enterprises meet international standards while ensuring production safety and public health.

Produal Cleanroom Differential Pressure Sensor – Accurate & Reliable Monitoring
Produal (Finland) is a leading European manufacturer in HVAC sensors and building automation. Produal cleanroom differential pressure sensors are specially designed for monitoring pressure differences in cleanrooms, hospitals, pharmaceutical plants, laboratories, and all environments requiring strict contamination control.

With wide measurement ranges, high precision, and flexible integration options, Produal ensures compliance with GMP, ISO 14644, FDA, and WHO standards.

Technical Highlights of Produal Cleanroom Differential Pressure Sensors

Measuring range: ±25 Pa to ±2500 Pa (depending on model).
Accuracy: ±1% of full scale.
Output signals: 0–10 V, 4–20 mA, or Modbus RTU.
Power supply: 24 V AC/DC.
Optional LCD display: real-time pressure reading.
Mounting: wall or direct HVAC installation.

Applications of Produal Cleanroom Differential Pressure Sensors
Pharmaceutical industry: Control pressure between cleanroom classes.
Hospitals & isolation rooms: Ensure negative pressure to contain contaminants.
Electronics & semiconductors: Maintain positive pressure to block dust entry.
Biosafety laboratories: Provide safe monitoring for personnel and environment.
Advantages of Produal Differential Pressure Sensors
Robust and precise, even for very small pressure differences.
Easy integration with building management systems (BMS, SCADA).
European-made, certified to international quality standards.
Flexible options for various applications from basic to advanced.

Produal differential pressure sensors are an ideal choice for modern HVAC, cleanroom, and hospital applications. Their accuracy, reliability, and durability ensure optimal environmental control and cost-efficient operation.

Both DPT250-R8 and DPT250-R8-D are high-quality differential pressure sensors from Produal, widely used in HVAC and cleanroom monitoring. The main difference lies in the display option.

Cleanroom differential pressure transmitter DPT250-R8 and DPT250-R8-D

Measuring range: ±250 Pa (scalable to lower ranges via DIP switch).
Outputs: dual analog (0–10 V and 4–20 mA).
Accuracy: ±1% full scale.
Power supply: 24 V AC/DC.
Applications: cleanroom pressure monitoring, AHU, filters, labs, hospitals.
Mounting: wall or control cabinet installation.

The EE610 Cleanroom Differential Pressure Sensor from E+E Elektronik (Austria) is a high-performance device designed to monitor extremely low differential pressures with outstanding accuracy and stability. It is widely used in cleanrooms, laboratories, hospitals, HVAC systems, and pharmaceutical production facilities, where maintaining controlled pressure conditions is critical.

With features such as Auto Zero calibration, analog outputs (4–20 mA / 0–10 V), Modbus RTU, and optional LCD display, the EE610 ensures reliable performance in the most demanding applications.

Cleanroom differential pressure transmitter EE610-HV51A7
Adjustable ranges: ±25 / ±50 / ±100 Pa / 0–100 Pa
Output: 4–20 mA / 0–10 V
High-precision cleanroom pressure measurement
Auto Zero function
Without display

Cleanroom differential pressure transmitter EE610-HV51A7D2AF8
Adjustable ranges: ±25 / ±50 / ±100 Pa / 0–100 Pa
Output: 4–20 mA / 0–10 V
Equipped with display for real-time monitoring
Auto Zero function

Cleanroom differential pressure transmitter EE610-HV51A7D2
Adjustable ranges: ±25 / ±50 / ±100 Pa / 0–100 Pa
Output: 4–20 mA / 0–10 V
With LCD display
Auto Zero function

Cleanroom differential pressure transmitter EE610-HV51J3P1BD5
Range: 0–100 Pa (configurable: 0…25/50/100 Pa)
Output: Modbus RTU (RS485)
For cleanroom pressure & air duct monitoring
IP65 protection rating
Calibration certificate included

Cleanroom differential pressure transmitter EE610-HV51J3D2P1BD5
Range: 0–100 Pa (configurable: 0…25/50/100 Pa)
Output: Modbus RTU (RS485)
With display for local monitoring
IP65 protection rating
Calibration certificate included