Atlas Copco 49X10301AB Pressure Transducer Sensor
The Atlas Copco 49X10301AB is a precision pressure transducer designed for heavy‑duty industrial applications, particularly in compressed air systems. This sensor converts pneumatic pressure into a standard analog electrical signal (4‑20 mA) that can be read by controllers, PLCs, and display units. It is used to measure discharge pressure from compressors, receiver tank pressure, and system line pressure, enabling accurate control and monitoring.
The sensing element is based on a piezoresistive silicon strain gauge technology, which offers excellent linearity, hysteresis, and repeatability. The sensor is housed in a stainless steel body with a G1/4” or NPT thread for easy mounting, and it is rated for pressures up to 20 bar (300 psi) with an overpressure limit of 30 bar. It operates on a 12‑36 VDC supply and outputs a 4‑20 mA signal proportional to the pressure range.
Electromagnetic compatibility (EMC) is ensured by internal filtering and shielding, making the sensor suitable for use in environments with variable frequency drives (VFDs) and other electromagnetic noise sources. The device also includes a built‑in temperature compensation circuit to maintain accuracy across a wide temperature range from –20°C to +85°C.
Technical Specifications
Product Type: Pressure Transducer Sensor
Part Number: 49X10301AB
Measuring Principle: Piezoresistive silicon
Pressure Range: 0 – 20 bar (0 – 300 psi) gauge
Output Signal: 4‑20 mA (2‑wire), linear
Accuracy: ±0.25% of full scale
Long‑term Stability: ±0.1% per year
Supply Voltage: 12 – 36 VDC (regulated)
Load Resistance: ≤ 750 Ω at 24 VDC
Connection Thread: G1/4” male (ISO 228) or 1/4‑18 NPT
Electrical Connection: 4‑pin M12 connector or cable pigtail (check variant)
Wetted Materials: Stainless steel 316L, Viton seal
Overpressure Limit: 30 bar (435 psi)
Operating Temperature: –20°C to +85°C
Ingress Protection: IP67
Dimensions: 70 x 25 mm (length x body diameter)
Compliance: CE, RoHS, EMC Directive 2014/30/EU
Key Features
High accuracy and repeatability for critical control loops.
Robust stainless steel construction withstands harsh industrial environments.
Standard 4‑20 mA output simplifies integration with existing systems.
Temperature compensated for stable performance.
Reverse polarity and overvoltage protection.
Deployment Scenarios
This transducer is widely used in Atlas Copco GA and Z compressors, as well as in air dryers and filtration systems. It can also be applied in hydraulic and pneumatic systems, water treatment, and process automation. In compressed air networks, it provides feedback to the control module for load/unload decisions and alarm triggering.
Installation and Maintenance
Mount the sensor vertically or horizontally using thread sealant. Connect the 4‑20 mA loop to a control system with appropriate shunt resistor. No regular maintenance is required; periodic zero and span checks are recommended.
Reliability
MTBF > 150,000 hours. The sensor is resistant to vibration and shock per IEC 60068‑2‑6.
Conclusion
The Atlas Copco 49X10301AB pressure transducer offers precise, reliable pressure measurement for industrial systems, ensuring effective control and protection of compressors and air distribution networks.
