HDA4444-A-400-000 HYDAC Pressure Transmitter 400 bar
| Model Number | HDA4744-A-016-000, HDA4744-C-400-000, HDA4845-E-250-000, HDA4444-A-400-000 |
|---|
Product Description
Product Overview
The HDA4444-A-400-000, HDA4845-E-250-000, HDA4744-C-400-000, HDA4744-A-016-000, HDA4445, HDA4400 and HDA4845 belong to the HYDAC HDA 4400/4700/4800 series of electronic pressure transmitters. Featuring thin-film strain gauge technology on a stainless steel membrane, these sensors provide standard 4–20 mA or 0–10 V output signals for precise pressure monitoring in mobile and industrial hydraulic and pneumatic systems. Fully interchangeable with original HYDAC HDA units, every transmitter undergoes 100% simulated operating-condition testing to ensure high accuracy, robustness and excellent long-term stability.
Technical Specifications
- Model: HDA4444-A-400-000 / HDA4845-E-250-000 / HDA4744-C-400-000 / HDA4744-A-016-000 etc. (HDA 4400/4700/4800 series)
- Type: Electronic pressure transmitter (relative pressure)
- Measuring ranges: common 16 / 60 / 100 / 250 / 400 / 600 bar (model-dependent)
- Overload pressure: typically 1.5–2 × measuring range (e.g. approx. 800 bar for 400 bar)
- Burst pressure: typically 2–3 × or higher (e.g. approx. 2000 bar for 400 bar)
- Accuracy: ≤ ±0.5 % FS typ. (max. ≤ ±1 % FS); BFSL ≤ ±0.25 % FS typ.
- Output signal: 4–20 mA (2-wire) or 0–10 V (3-wire)
- Mechanical connection: G1/4 A (ISO 1179-2)
- Recommended tightening torque: 20 Nm
- Wetted parts: Stainless steel + FKM seal
- Electrical connection: Binder M18, DIN 43650, M12×1 etc.
- Protection class: IP65 / IP67 (connector-dependent)
- Compensated temperature range: –25 to +85 °C
- Operating temperature range: –25 to +85 °C (medium up to higher)
- Rise time: ≤ 1–2 ms
Key Technical Advantages
- High-precision thin-film strain gauge sensing: Full-bridge thin-film technology on stainless steel membrane delivers high accuracy, low temperature error and excellent long-term stability (≤ ±0.3 % FS/year).
- Robust construction: Stainless steel wetted parts combined with high overload and burst capability provide resistance to vibration and shock in mobile and industrial environments.
- True interchangeability and standard outputs: Identical mechanical and electrical interfaces to original HYDAC HDA series enable direct drop-in replacement; standard current/voltage signals are fully compatible with PLCs and monitoring systems.
- 100% functional verification under simulated conditions: Every unit is fully tested across pressure and temperature characteristics before shipment, guaranteeing consistency and reliability.
Application Areas
- Pressure monitoring on mobile hydraulic equipment (construction and agricultural machinery)
- Industrial hydraulic power units and pump stations
- Injection molding, die-casting and press systems
- Pneumatic systems and test stands
- Marine and metallurgical hydraulic circuits
Expert Maintenance Tips
Install with correct sealing and tighten to the specified 20 Nm torque; avoid over-tightening that could damage threads or the membrane. Ensure correct electrical connection matching the signal type (2-wire/3-wire) and provide proper shielding against EMC. Maintain clean system media to protect the membrane from particles. Periodically check zero and full-scale drift and recalibrate if necessary. For long-term storage keep dry and avoid extreme temperatures. Always confirm pressure range and output signal compatibility before replacement; never exceed the rated pressure.
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Company Profile
Frequently Asked Questions
1.What ls our Main Products?
1.Hydraulic pump
2.Hydraulic valve
3.Hydraulic motor
4.Hydraulic cylinder
5.Hydraulic parts
2. What about the MOQ?
3.What are your advantages?
- Adhere to quality first.
- Support customization, ODM & OEM service.
- 1-year warranty and complete after-sales support.
- Safe and fast shipping worldwide.
- 24-hour online service for your inquiries.
4.Are you a manufacturer? What’s your delivery time?
Yes, we are a manufacturer with our own factory.
Common models are in stock, and orders are usually shipped within 1–3 days.
5.Which payment methods are accepted?
We accept T/T, L/C, PayPal, VISA, Western Union, Apple Pay, Google Pay, Afterpay (Clearpay), Klarna, and Trade Assurance.
For full orders: 30% deposit, balance before shipment.
For small/sample orders: full payment in advance.
6.How will you deliver my goods?
We offer flexible shipping options: DHL, UPS, FedEx, TNT, EMS, as well as air or sea freight.
All deliveries ensure door-to-door fast and safe service.
7.How do you inspect and guarantee your products?
All products are tested before shipment to ensure perfect working condition.
We offer a 12-month warranty — if a product fails due to quality issues, we provide free spare parts or repair support.
8.What about after-sales service?
If you encounter any problem during use, please contact your sales manager or our support team at any time.
We will respond quickly and help solve the issue efficiently.
9.What are your main applications?
- Hydraulic systems
- Agricultural machinery
- Construction machinery
- Automobile industry
- Local distributors and maintenance centers
10.Can I get a discount for bulk orders?
Yes. We offer competitive wholesale prices and try our best to give benefits to long-term partners.
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