Honeywell PPT Series Precision Smart Pressure Transmitter with CE Certification

Overview

The Honeywell PPT Series Precision Smart Pressure Transmitter is an engineered solution for high-reliability pressure measurement in demanding aerospace, propulsion, and flight test environments. Based on silicon piezoresistive sensing technology with temperature-compensated signal conditioning, the PPT delivers stable, repeatable output across extended thermal operating ranges. Its core architecture integrates a micro-machined pressure-sensing element with an embedded ASIC that performs real-time linearization, thermal drift correction, and digital calibration storage. Designed specifically for integration into avionics subsystems and ground-based test rigs, the transmitter operates within a rigorous –40 °C to +85 °C ambient range while maintaining ±0.05% Full Scale Output (FSO) accuracy—verified per ISO/IEC 17025-accredited calibration procedures. The device complies with European Electromagnetic Compatibility (EMC) and Low Voltage Directive (LVD) requirements, evidenced by full CE marking under Directive 2014/30/EU and 2014/35/EU.

Key Features

• High-accuracy pressure measurement: ±0.05% FSO over full compensated temperature range (–40 °C to +85 °C), traceable to NIST standards.
• Dual independent outputs: Simultaneous analog (0–5 VDC) and digital (RS232 or RS485) interfaces, supporting Modbus RTU protocol for seamless integration into SCADA and data acquisition systems.
• User-configurable parameters: Adjustable zero offset, span, damping time constant, and output scaling via serial command set—enabling field adaptation without hardware modification.
• Enhanced electromagnetic immunity: Engineered shielding and filtering compliant with EN 61000-6-2 (industrial immunity) and EN 61000-6-4 (emission limits), validated for use in aircraft engine nacelles and wind tunnel instrumentation.
• Integrated temperature sensing: On-chip thermistor provides calibrated sensor die temperature output (±1 °C accuracy), facilitating advanced thermal compensation algorithms in host controllers.
• Ruggedized stainless steel housing with IP67 ingress protection and MIL-STD-810G qualified mechanical robustness for vibration, shock, and humidity exposure.

Sample Compatibility & Compliance

The PPT Series is compatible with non-corrosive gases and liquids—including dry air, nitrogen, hydraulic fluids (MIL-PRF-83282), and deionized water—when used with appropriate wetted material options (e.g., 17-4PH stainless steel diaphragm). It meets pressure medium compatibility requirements defined in ASTM E2877-22 for aerospace transducer qualification. All units are supplied with EC Declaration of Conformity documentation, including test reports for radiated/conducted emissions (EN 55032), electrostatic discharge (EN 61000-4-2), and surge immunity (EN 61000-4-5). CE marking confirms conformity with essential health and safety requirements for instruments placed on the EU market, supporting audits under ISO 9001 and AS9100 quality management systems.

Software & Data Management

Configuration and diagnostics are performed using Honeywell’s proprietary PPT Configuration Utility (Windows-based), which supports firmware updates, calibration coefficient upload, and real-time parameter monitoring. The utility generates audit-ready logs compliant with FDA 21 CFR Part 11 requirements when used in regulated environments—enabling electronic signatures, user access control, and immutable change history. Raw output data streams support IEEE 1451.2 TEDS-compatible metadata embedding, allowing automatic sensor identification and configuration in distributed measurement networks. For enterprise integration, OPC UA and MQTT gateways are available as optional middleware modules.

Applications

• Aerospace flight test instrumentation: Static and dynamic pressure monitoring in pitot-static systems, cabin pressurization loops, and engine bleed air ducts.
• Gas turbine development: Combustor pressure profiling, compressor stage differential pressure, and exhaust backpressure characterization.
• Calibration laboratories: Reference-grade transfer standard for pressure calibrators and deadweight testers (up to 10,000 psi variants).
• Industrial process control: High-stability monitoring in cleanroom HVAC, semiconductor tool gas delivery, and pharmaceutical sterile processing lines.
• Research & development: Low-noise pressure acquisition in wind tunnel testing, combustion dynamics studies, and aerodynamic load modeling.

FAQ

Is the PPT Series suitable for use in certified aircraft installations?
Yes—when integrated per DO-160G Section 21 (EMI/EMC) and Section 20 (Environmental Conditions) guidelines, and supported by Honeywell’s TSO-C4c design approval documentation.
Can the analog and digital outputs operate simultaneously?
Yes—the 0–5 VDC analog output and RS485 Modbus interface are electrically isolated and fully concurrent, enabling redundant data paths for safety-critical applications.
What calibration documentation is provided with each unit?
Each transmitter ships with a NIST-traceable calibration certificate listing as-found/as-left data at three pressure points across temperature extremes, plus uncertainty budgets per GUM (JCGM 100:2008).
Does the CE marking cover intrinsic safety for hazardous areas?
No—the PPT Series is not ATEX or IECEx certified; it is intended for general-purpose industrial and aerospace use in non-hazardous locations only.
How is long-term stability maintained over the product lifecycle?
Honeywell specifies 0.1% FSO/year typical long-term drift, verified through accelerated life testing per MIL-HDBK-217F and confirmed during periodic recalibration intervals recommended at 12-month intervals in continuous operation.