DE27 Differential Pressure Transmitter for Industrial Ventilation and HVAC | Fischer

Key Features: Fischer DE27 Differential Pressure Transmitter

The Fischer DE27 is a multifunction digital differential pressure transmitter designed to measure positive pressure, negative pressure and differential pressure in dry air and neutral gases. Its piezoresistive silicon diaphragm sensor provides excellent measurement stability, repeatability and high overload resistance.

Available with measuring ranges from 4 mbar up to 100 mbar, the DE27 is designed for industrial ventilation, filter monitoring, chimney draft measurement, extraction systems, air duct pressure monitoring and building automation.

The transmitter offers advanced signal conditioning including damping, signal spreading, inversion and offset adjustment, allowing easy adaptation to specific process requirements. Configuration is performed using the Fischer EU03 programming interface and an optional local display is available.

As an official Fischer distributor, Garma Electrónica recommends the DE27 whenever a rugged, configurable and maintenance-free differential pressure transmitter is required for gaseous media.

Main Specifications: Fischer DE27 Differential Pressure Transmitter

• Measured variable: differential pressure, positive pressure and negative pressure.
• Medium: dry air and neutral gases.
• Measuring ranges: 4 mbar to 100 mbar.
• Measuring principle: piezoresistive silicon diaphragm sensor.
• Analogue outputs: 4–20 mA, 0–20 mA, 0–10 V or 2–10 V, depending on version.
• Signal conditioning: damping, inversion, offset and signal scaling.
• Display: optional local display.
• Configuration: Fischer EU03 programming interface.
• Protection rating: IP65.
• Construction: overload resistant and maintenance-free.
• Mounting: wall mounting.

Applications and Benefits: Fischer DE27 Differential Pressure Transmitter

HVAC Control

The DE27 provides accurate differential pressure measurement in HVAC, ventilation and air-conditioning systems, improving fan performance and air handling efficiency.

Filter Monitoring

Continuous pressure-drop monitoring detects filter contamination at an early stage, enabling predictive maintenance and reducing operating costs.

Draft and Extraction Systems

Its excellent stability makes the DE27 ideal for chimney draft measurement, furnaces, dryers and industrial extraction systems.

Industrial Automation

The analogue outputs and advanced signal conditioning functions allow seamless integration into PLCs, SCADA systems and building automation platforms.

Competitive Advantages

The Fischer DE27 combines a high-accuracy piezoresistive sensor, flexible signal configuration, optional display, IP65 protection and maintenance-free operation, making it an excellent solution for HVAC, industrial ventilation, filter monitoring and differential pressure measurement in gaseous media.