JUMO Type 4304 Pressure and Differential Pressure Transmitter

Overview

JUMO Type 4304 is a pressure and differential pressure transmitter engineered for non-aggressive gases, acquiring negative pressure, overpressure, or differential pressure with a wear-free inductive measuring system. Featuring an exceptionally wide range of very small measuring spans, precise temperature compensation, and an optional integrated LCD display, the JUMO Type 4304 is mainly used in heating engineering, air conditioning, and ventilation (HVAC) technology, as well as clean room monitoring and filter surveillance.

As the official authorized partner and exclusive regional representative for JUMO, Seven Star LLC proudly supplies the JUMO Type 4304 pressure and differential pressure transmitter to HVAC, building automation, and industrial customers across Oman and the wider GCC. Every unit shipped through Seven Star LLC is genuine JUMO product with full manufacturer warranty and access to local technical support – ensuring facility engineers and procurement teams in Muscat, Sohar, and Salalah receive an authentic, factory-certified JUMO Type 4304 backed by regional service.

Working Principle

The JUMO Type 4304 measures pressure and differential pressure using a wear-free inductive measuring system: a flexible diaphragm separates two pressure chambers, and its deflection under differential pressure is detected inductively without physical contact or moving mechanical linkages subject to wear. This inductive principle allows the transmitter to resolve extremely small pressure differentials with high stability, since there are no sliding contacts or mechanical wear points to introduce drift or hysteresis over the service life of the instrument.

Precise temperature compensation built into the transmitter’s electronics maintains measurement accuracy across the rated ambient and medium temperature range, an important characteristic for HVAC and clean room applications where ambient conditions can vary throughout the day. For flow monitoring or level measurement via bubbling-through methods, the transmitter’s output characteristic can be configured as either linear or root-extracted, matching the transmitter’s response to the underlying physical relationship being measured.

Engineering Design of the JUMO Type 4304

The JUMO Type 4304 covers an exceptionally wide measuring range from 0.50 mbar up to 1200 mbar differential pressure (relative), supporting both extremely low-differential HVAC filter and clean room monitoring duties and higher-range general pressure measurement from a single product family. Accuracy (linearity) is rated at 1%, and the transmitter operates across a medium temperature range of -10°C to +50°C, matching typical HVAC and building automation ambient conditions.

Process connections include thread and hose connection options, and output signal choices span 4 to 20 mA two-wire, 0 to 20 mA three-wire, and DC 0 to 10 V three-wire, giving building automation and process integrators flexibility to match the transmitter to existing BMS or PLC input types. Special features include optional switching contacts for direct alarm or interlock functions, adjustable measuring range settings, and an optional integrated LCD display for local readout without requiring a separate indicator.

Key Features

The JUMO Type 4304 combines a wear-free measuring principle with an exceptionally wide range of very small measuring spans that makes it a standard choice for HVAC and clean room differential pressure monitoring.

• A wear-free inductive measuring system eliminates mechanical wear points, supporting long-term measurement stability.
• Measuring ranges from 0.50 mbar up to 1200 mbar DP cover both extremely low-differential and higher-range applications.
• Precise temperature compensation maintains measurement accuracy across varying ambient conditions.
• Linear or root-extracted output characteristics support both direct pressure readings and flow/level applications.
• Optional switching contacts enable direct alarm or interlock functionality without an external controller.
• An optional integrated LCD display provides local pressure readout without a separate indicator instrument.
• Multiple output signal options (4-20 mA, 0-20 mA, 0-10 V) integrate with a wide range of BMS and PLC systems.
• Thread and hose connection options provide installation flexibility across different ductwork and piping configurations.

Industrial Applications

The JUMO Type 4304 is deployed across HVAC systems, clean room monitoring, filter surveillance, and level measurement via bubbling-through methods wherever precise, low-differential pressure measurement of non-aggressive gases is required. Typical duties include air filter differential pressure monitoring, clean room pressure cascade verification, and ductwork pressure monitoring in commercial and industrial buildings.

As the officially authorized partner for JUMO, Seven Star LLC distributes the JUMO Type 4304 to HVAC contractors, building automation integrators, and industrial facilities throughout Oman and the GCC. The transmitter is a strong fit for commercial building HVAC systems across Muscat, as well as for clean room and filtration monitoring applications across the Sohar and Salalah industrial zones that require dependable, low-differential pressure measurement.

Technical Specifications

The table below summarizes the core specifications of the JUMO Type 4304 pressure and differential pressure transmitter as supplied by Seven Star LLC.

Call To Action

Seven Star LLC supports the full procurement cycle for the JUMO Type 4304 pressure and differential pressure transmitter, from formal RFQ submission to regional warehouse stock availability, technical datasheet delivery, and direct consultation with our instrumentation division on measuring range, output signal, and display options for your application. As the authorized partner for JUMO in Oman and the GCC, we ensure every JUMO Type 4304 transmitter is delivered with full manufacturer warranty and dependable local technical support. Contact Seven Star LLC today to request a quotation or discuss your HVAC pressure measurement requirements.