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Phone：+86 17062388866Description
The FOXBORO P0904HN LZS 1500-3FOX is a high-precision nuclear-grade differential pressure (DP) transmitter engineered by Schneider Electric for critical level and flow measurements in extreme environments. Designed for SIL 2/3 safety applications per IEC 61508, this transmitter features dual-isolated Hastelloy C-276 diaphragms and advanced sensor redundancy, ensuring reliability in nuclear power plants, LNG cryogenic storage, and high-radiation zones. The P0904HN utilizes Foxboro’s patented Intelligent Sensor Technology (IST) with ±0.04% accuracy and drift compensation, maintaining calibration for 15+ years. Its “LZS 1500-3FOX” suffix denotes a liquid-level solution with 1500mm flange spacing, remote-seal capillaries, and Foxboro-specific protocol integration. The FOXBORO P0904HN withstands pressures up to 400 bar and temperatures from -196°C to 450°C, making it indispensable for reactor coolant monitoring and cryogenic tank farm safety.
FOXBORO P0904HN LZS 1500-3FOX
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | P0904HN LZS 1500-3FOX |
| Manufacturer | FOXBORO (Schneider Electric) |
| Product Type | Nuclear-Grade DP Transmitter |
| Accuracy | ±0.04% of span (incl. hysteresis, linearity) |
| Pressure Range | 0–25 kPa to 0–40 MPa |
| Process Connection | 3″ ANSI 300 RF flanges (1500mm centerline) |
| Diaphragm Material | Hastelloy C-276 |
| Isolation | Dual-seal, gold-foil barrier |
| Output Signal | 4–20 mA HART 7/FOXCOMM |
| Safety Rating | SIL 3 (IEC 61508), NRC 10CFR50 Appendix B |
| Operating Temperature | -196°C to +450°C (remote seals) |
| Ingress Protection | IP68/NEMA 6P |
| Vibration Resistance | 5g @ 10–2000 Hz |
| Certifications | ASME III, KTA 1401, PED 2014/68/EU |
Main Features and Advantages
Radiation-hardened design: The FOXBORO P0904HN employs neutron-absorbing boron-doped electronics and welded hermetic seals, maintaining functionality in >10⁶ rad/hr gamma environments. Its Intelligent Sensor Technology continuously compensates for neutron flux-induced drift, eliminating manual recalibration.
Leak-before-break safety: Dual-containment diaphragms with rupture detection prevent radioactive/cryogenic fluid release. The transmitter’s predictive diagnostics monitor seal integrity and process fluid density changes, alerting operators 72+ hours before failure.
Installation flexibility: Pre-configured “LZS 1500-3FOX” kit includes capillary tubes with nitrogen fill for cryogenic damping. FOXCOMM protocol enables direct integration with Foxboro DCS (e.g., I/A Series) without signal converters. Hot-swappable electronics reduce outage time during maintenance.
Application Field
The FOXBORO P0904HN LZS 1500-3FOX dominates ultra-demanding scenarios:
Nuclear: Monitors PWR reactor vessel level, spent fuel pool inventory, and ECCS (Emergency Core Cooling System) flow.
LNG: Measures liquid nitrogen level in -162°C storage tanks with ±1mm accuracy.
Petrochemical: Safeguards hydrocracker reactors with high-temperature hydrogen service.
Pharmaceutical: Controls sterile bioreactor levels under FDA 21 CFR Part 11 compliance.
In geothermal plants, it withstands H₂S corrosion while measuring brine flow.
FOXBORO P0904HN LZS 1500-3FOX
Related Products
P0904H: SIL 3 DP transmitter without nuclear hardening.
P0914HN: High-static-pressure variant (100 MPa).
IMT25H: Integral mount transmitter for space-constrained installations.
FBM247: Foxboro fieldbus module for P0904HN integration.
P0926J: Multivariable transmitter with temperature compensation.
UMS4: Universal mounting system for remote seals.
