Lsi BSP002 Absolute Pressure Sensor
| Brand | Lsi |
|---|---|
| Origin | Italy |
| Model | BSP002 |
| Measurement Range | 800–1100 hPa |
| Accuracy (20°C) | ±1 hPa |
| Resolution | 0.1 hPa |
| Thermal Drift | 3.3 hPa/10°C (-10…+60°C) |
| Response Time (T90) | 1 ms |
| Warm-up Time | 300 s |
| Operating Temperature | -40…+85°C |
| Long-term Stability | 1.1 hPa/year |
| Sea-level Compensation Range | -300…+2000 m ASL |
| Power Consumption | 10 mA |
| Output | Analog (1 channel), 2 m PVC cable |
| Sensor Element | Piezoresistive |
| Calibration Interval | 12 months |
| Compliance | ISO 9001-certified calibration (Certificate DZC001, Procedure PCR002) |
Overview
The Lsi BSP002 Absolute Pressure Sensor is a high-stability, piezoresistive transducer engineered for precise atmospheric and barometric pressure measurement in demanding industrial, environmental monitoring, and scientific applications. Designed to operate across an absolute pressure range of 800–1100 hPa—covering standard sea-level conditions and altitudinal variations—it delivers metrologically traceable performance with ±1 hPa accuracy at 20°C and a resolution of 0.1 hPa. Its piezoresistive sensing element ensures robust signal integrity under thermal cycling, while the integrated temperature compensation architecture mitigates drift across its full operating range of –40°C to +85°C. With a rapid T90 response time of 1 ms and thermal stabilization achieved within 300 seconds, the BSP002 supports real-time pressure logging in dynamic systems such as weather stations, HVAC control loops, altitude-referenced navigation subsystems, and cleanroom environmental qualification protocols.
Key Features
- Piezoresistive silicon sensing element with long-term stability of ≤1.1 hPa/year
- High-resolution analog output (0.1 hPa) with single-channel interface and 2 m PVC cable (rated for –15°C to +70°C ambient)
- Comprehensive thermal compensation: drift limited to 3.3 hPa per 10°C over –10°C to +60°C
- Sea-level reference compensation capability across –300 m to +2000 m above sea level (ASL)
- Low power consumption (10 mA typical), suitable for battery-backed or energy-constrained deployments
- ISO 9001-certified calibration per procedure PCR002; includes full drift characterization and comparison against NIST-traceable reference standards
- Robust mechanical design rated for continuous operation in harsh environments without condensation or particulate ingress
Sample Compatibility & Compliance
The BSP002 is optimized for gaseous media only—specifically dry air and non-corrosive, non-ionic atmospheres. It is not rated for liquid immersion, aggressive chemicals, or steam exposure. For differential or gauge pressure applications involving non-corrosive gases, complementary models—including the BSP011 (0–2.54 mbar), BSP012 (0–70 mbar), BSP014 (0–12.5 mbar), BSP015 (0–25 mbar), and BSP016 (0–330 mbar)—are available with matched thermal and linearity specifications. All Lsi pressure sensors comply with ISO 9001 quality management requirements for calibration traceability. Certificates DZC001 (for absolute sensors) and DZC016 (for differential variants) document full procedural adherence to internal calibration protocols PCR002 and PCR016, respectively—ensuring audit readiness for GLP, ISO/IEC 17025, and FDA-regulated validation workflows where instrument qualification is required.
Software & Data Management
The BSP002 interfaces seamlessly with industry-standard DAQ systems via its analog voltage or current output (configuration dependent on OEM variant). While the sensor itself operates autonomously without embedded firmware, its output is fully compatible with SCADA platforms, LabVIEW-based acquisition modules, and programmable logic controllers supporting 4–20 mA or 0–10 V input ranges. When integrated into validated systems, users may implement automated calibration verification routines using timestamped drift logs and periodic zero/span checks. Full calibration records—including pressure point comparisons at 1/3 FS, 2/3 FS, and ambient reference—are retained in accordance with 21 CFR Part 11-compliant electronic record practices when paired with qualified data acquisition software.
Applications
- Barometric pressure monitoring in meteorological networks and automatic weather stations (AWS)
- Altitude compensation in UAV flight control and inertial navigation systems
- Environmental chamber qualification and HVAC static pressure balancing
- Process air supply monitoring in pharmaceutical cleanrooms (ISO Class 5–8)
- Reference pressure input for mass flow controllers and leak detection systems
- Long-duration field deployments requiring low-drift, low-power sensing with annual recalibration intervals
FAQ
What is the recommended recalibration interval for the BSP002?
The manufacturer specifies an annual calibration interval (12 months) under normal operating conditions. Extended intervals may be justified per risk-based assessment in accordance with ISO/IEC 17025 Clause 7.8.3, provided historical drift data supports continued validity.
Can the BSP002 be used for liquid pressure measurement?
No. The BSP002 is designed exclusively for gaseous media. For liquid applications—including refrigerants, water, oil, or steam—refer to the Lsi BSP501 series (0–30 bar range, SAE 1/4″ port, silicone-cable construction).
Is temperature compensation applied internally or externally?
The BSP002 incorporates factory-applied analog temperature compensation within its signal conditioning circuitry; no external compensation algorithm is required for specified operating conditions.
Does the calibration certificate meet international metrological traceability requirements?
Yes. Certificate DZC001 references comparison against primary standards maintained by Lsi’s ISO 9001-certified calibration laboratory, with uncertainty budgets documented per ISO/IEC 17025 Annex A.3.
What environmental protection rating does the BSP002 housing provide?
The sensor housing meets IP54 ingress protection requirements—dust-protected and resistant to water splashes from any direction—suitable for indoor and sheltered outdoor installations.
