- Long-term stability 0.05 % Span/3years
- Non-linearity, hysteresis and repeatability to 0.02 % span BSL
- Total accuracy up to 0.1 % span(include compensated temperature range)
- Pressure ranges from 1 to 10000 psi (0.068 to 700 bar)
- Gauge, Sealed Gauge, Absolute and Barometric
- (4-20)mA ,0~5V~10V(configurable) and RS485 Outputs
- Frequency response to 1 kHz
- Operating temperaturerange up to -40 °C to 125 °C (-40 °F to 257 °F）
- Hazardous area certification
The A20 is a high-performance, robust pressure measurement device offering market-leading long-term stability backed by a 3-year guarantee. Its highly stable, glueless sensor module and hermetically sealed electronics deliver exceptional reliability and stability in demanding applications. With high accuracy and extensive temperature compensation, the A20 provides outstanding performance across the full operating range.
The A20 is available in gauge, sealed gauge, and absolute configurations, with pressure ranges from 400 mbar to 700 bar. To ensure easy integration, the A20 supports conventional analog output as well as RS485 Modbus-RTU for digital communication. Fast ASIC technology enables response times of <1 ms (1 kHz) and a switch-on time of <30 ms. Digital communication also allows for simple calibration through an app. Built for durability, the A20 features best-in-class construction designed to withstand high shock levels (1000 g half-sine for 1 ms per IEC 60068-2-27), vibration, and more than 10 million pressure cycles (0–100% FS at room
temperature).
Additel is renowned for the long-term reliability of its calibration standards and portable calibrators, and the A20 family of pressure transmitters and transducers continues that legacy—delivering unmatched reliability, stability, and service.
Metal Hermetic Packaging for Ultra-High Reliability
Metal or ceramic hermetic packaging is commonly used in aerospace and other applications that demand extremely high reliability. The A20-KB uses metal hermetic circuit packaging—a higher-cost approach that delivers superior performance. By fully isolating the electronics from moisture and environmental contaminants, this design ensures exceptional long-term stability and ultra-high reliability of the circuit.
Glue-Free Sensor Packaging for Exceptional Stability — Guaranteed 0.05% for 3 Years
The A20-JGB utilizes a specialized glue-free solid packaging technology combined with a unique low-stress structural design. This approach minimizes long-term drift and delivers outstanding stability over the life of the sensor. By eliminating adhesive materials, the sensor can also withstand long-duration high-vacuum environments without hidden risks, ensuring highly reliable performance under demanding conditions
Modular Design for Ultra-Fast Delivery
A20-KB adopts modular design and automated production lines. All key modules are pre-produced in advance, which can realize fast delivery after receivingfrom orders (delivery within 1 week). (With diagram, fast delivery)
Metrology-Driven, Full-Link Quality Management System
Additel operates a world-class, ISO 17025:2017-accredited pressure metrology laboratory equipped with primary standards offering uncertainties as low as ±(0.2 Pa + 12 ppm)—representing industry-leading metrology capability. Leveraging this robust metrology framework, every stage—from traceability and value transfer to product calibration—is standardized and tightly controlled. Each A20-KB unit undergoes rigorous calibration and testing, ensuring consistent accuracy and long-term reliability in every delivered product