Pressure Transmitters

The HYDAC HDA 4300 Pressure Transmitter is a compact, high-accuracy sensor designed for low-pressure measurement in applications such as refrigeration, air conditioning, and the food and pharmaceutical industries. With a ceramic measurement cell and robust EMC performance, it ensures reliable monitoring even in demanding environments.

Key Features:

• High measurement accuracy (≤ ±0.5% FS) with minimal temperature error
• Compact design with excellent electromagnetic compatibility (EMC)
• Compatible with 4–20 mA or 0–10 V outputs for seamless system integration

The HYDAC HDA 4300 is an ATEX-certified electronic pressure transmitter designed for use in hazardous and explosive environments. It features a robust ceramic measurement cell with thick-film strain gauge technology, offering reliable performance in low-pressure applications. Ideal for industries such as oil and gas, mining, and areas with high dust levels.

Key Features:

• ATEX-certified for Zones 0, 1, 2 (gas) and 20, 22 (dust) – certified under KEMA 05ATEX1016 X and 05ATEX1021
• High accuracy (≤ ±0.5% FS) and excellent temperature stability

The HYDAC HDA 4300 pressure transmitter (CSA version) is engineered for hazardous locations in North America, where explosive gases or dust may be present. Built on the proven HDA 4000 platform, it features a rugged ceramic sensor for reliable low-pressure monitoring in demanding applications such as oil and gas, turbines, and dusty industrial settings.

Key Features:

• CSA-certified (1760344) for use in intrinsically safe and non-incendive environments.
• Accurate and stable output with a 4–20 mA signal and typical error of ≤ ±0.5% FS.
• Robust design suited for harsh and dust-heavy industrial conditions.

The HYDAC HDA 4300 pressure transmitter with marine approvals is designed specifically for the shipbuilding industry. Based on the HDA 4000 series, it uses a durable ceramic sensing element to measure low-range relative pressure and delivers a reliable 4–20 mA analog output.

Key Features:

• Approved by major maritime authorities including ABS, DNV, Lloyd’s Register, and Bureau Veritas
• Robust construction with sealed electronics for harsh marine environment

The HYDAC HDA 4400 pressure transmitter is designed for compact and demanding applications in both mobile and industrial hydraulic or pneumatic systems. It features a thin-film strain gauge on a stainless steel membrane, delivering reliable and accurate pressure readings even in tight spaces.

Key Features:

• Compact and rugged design ideal for space-limited hydraulic and pneumatic applications
• Thin-film stainless steel sensor provides high accuracy (≤ ±0.5% FS) and long-term durability
• Versatile output options (4–20 mA or 0–10 V) compatible with PLCs and HYDAC electronics

The HYDAC HDA 4400 with Flush Membrane is a compact, high-accuracy pressure transmitter designed for applications where clogging or contamination is a concern. Its flush stainless steel membrane prevents blockage and ensures reliable measurement in demanding or frequently changing media environments.

Key Features:

• Flush stainless steel membrane prevents clogging and contamination
• High accuracy (≤ ±0.5 % FS) with minimal temperature drift

The HYDAC HDA 4400 Electronic Pressure Transmitter is engineered specifically for the demanding conditions of the shipbuilding industry. Featuring a stainless steel measurement cell and thin-film strain gauge, it delivers reliable high-pressure readings with a robust 4–20 mA analogue signal output.

Key Features:

• Robust stainless steel housing with potted electronics
• Accurate high-pressure measurement
• Approved by ABS, Lloyd’s, DNV, GL, and BV

The HYDAC HDA 4700 Electronic Pressure Transmitter features a highly accurate thin-film strain gauge on a stainless steel membrane, delivering reliable pressure measurement in compact spaces. With output options of 4–20 mA or 0–10 V, it integrates seamlessly into HYDAC and standard control systems.

Key Features:

• High accuracy (≤ ±0.25% FS) and low temperature error
• Compact, robust design for tight spaces
• Excellent EMC performance

The HYDAC HDA 4700 Electronic Pressure Transmitter with Flush Membrane is designed for applications involving viscous, clogging, or rapidly changing media where standard pressure ports are unsuitable. Its stainless steel flush diaphragm and internal pressure transfer fluid ensure reliable, high-pressure measurement without contamination risks.

Key Features:

• Flush stainless steel membrane prevents clogging
• High accuracy (≤ 0.25% FS) with low temperature error
• Compact, robust design with excellent EMC performance

The HYDAC Electronic Pressure Transmitter HDA 4700 is a dual-channel, high-performance sensor specifically engineered for use in safety-critical applications requiring compliance with PL d - Cat 3 (ISO 13849) and SIL 2 (EN 61508).

Key Features:

• Dual-channel design with independent sensor and evaluation circuits for redundancy
• Certified for functional safety: PL d (Cat. 3) and SIL 2 compliant
• High accuracy (≤ ±0.25% FS), compact size, and excellent resistance to temperature and EMC influences

The HYDAC Electronic Pressure Transmitter HDA 4700 with flameproof enclosure is certified for global use in explosive environments, carrying triple approvals from ATEX, CSA, and IECEx. Designed for demanding applications in mining and oil & gas, it features a robust, fully-welded stainless steel sensor for reliable performance under harsh conditions.

Key Features:

• Triple explosion-proof certification: ATEX, CSA, and IECEx
• High measurement accuracy (≤ ±0.25% FS) with minimal temperature error
• Durable stainless steel design with excellent EMC resistance and no internal seals

The HYDAC Electronic Pressure Transmitter HDA 4700 CANopen is a high-precision digital sensor designed for seamless integration into CAN-based control systems. Offering real-time pressure data via the CANopen protocol, it combines rugged construction with compact design, ideal for both mobile and industrial hydraulic and pneumatic applications.

Key Features:

• CANopen protocol for easy integration into fieldbus systems
• High accuracy (≤ ±0.25% FS) with robust thin-film stainless steel sensor
• Compact size with excellent EMC and temperature performance