Key Features: Digital Differential Pressure Transmitter Fischer DE90

The Fischer DE90 is a digital differential pressure transmitter with integrated LCD display and up to 4 alarm contacts, designed for accurate measurement of overpressure, underpressure, and differential pressure in neutral gaseous media with high precision and repeatability. Covers ranges from -25 Pa … +25 kPa (or 0…25 kPa), using piezoresistive silicon diaphragm sensor for resistance change evaluation into signal and contacts. Features backlit LCD with color change (green/yellow/red) for instant visual status/alarm indication, signal conditioning (damping, spreading, inversion, non-linear table function up to 30 points), and optional Modbus RTU or IO-Link for advanced integration. Rugged housing with IP65/IP67 protection and zero maintenance required. As distributor at Garmasl, we emphasize its multifunctionality, visual alarm, and versatility, positioning it as one of the best solutions in the market for digital differential pressure monitoring with local indication and alarm control.

Main Specifications: Digital Differential Pressure Transmitter Fischer DE90

• Measuring range: -25 Pa … +25 kPa (or 0…25 kPa per model)
• Pressure unit: Selectable
• Analog output: 0(4)-20 mA / 0-10 V (optional up to 2 outputs)
• Contacts: Up to 4 adjustable switching contacts
• Display: Backlit LCD with color change for visual alarm
• Signal conditioning: Damping, spreading, inversion, non-linear table (up to 30 points)
• No maintenance required

Applications and Benefits: Digital Differential Pressure Transmitter Fischer DE90

Monitoring in Ventilation and Filtration Systems: The DE90 measures differential pressure in HEPA filters, fans, and extraction systems, activating up to 4 alarms and transmitting analog signals for precise airflow control and predictive maintenance as an advanced market solution for HVAC and clean rooms.

Benefits in Climate Control and Environmental Systems: Color-changing display and adjustable contacts provide immediate visual indication and automatic deviation signaling, enhancing safety and efficiency in air conditioning and treatment systems without constant intervention.

Advantages in Industrial Processes and Clean Rooms: High repeatability, non-linear conditioning, and Modbus/IO-Link options facilitate SCADA/BMS integration, reducing calibration costs and downtime in regulated environments with traceability needs.

Competitive Potential: Multifunctional (measurement + display + alarms + transmission), maintenance-free, and German robustness, the DE90 excels in HVAC industrial, pharmaceutical, clean room, and environmental automation sectors, drawing inquiries for its digital precision, visual alarm, and outstanding value in differential pressure transmitters with multiple outputs and contacts.