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Leveraging advanced planar zirconia technology and a triple-band sensing design, this sensor provides real-time monitoring of NO, NO₂, and total NOx (0-6,000 ppm) with ±1.5% measurement accuracy, enabling precise control of exhaust gas recirculation (EGR) and selective catalytic reduction (SCR) systems. The rugged Inconel housing and extreme temperature resistance (up to 900°C) make it ideal for harsh operating environments in commercial vehicles, marine engines, and industrial generators.
Triple-Band Sensing Technology
Comprehensive Speciation: Simultaneously measures NO, NO₂, and total NOx, providing detailed data for optimizing aftertreatment efficiency in complex exhaust systems.
Ultra-Precision Measurement: ±1.5% accuracy across the 0-6,000 ppm range, reducing aftertreatment over/under-correction by 40% compared to legacy sensors.
Extreme Environment Resilience
High-Temp Stability: Operates reliably at 900°C for 15,000+ hours, with a thermal shock tolerance of 600°C/sec to withstand rapid load fluctuations in heavy-duty applications.
Corrosion Resistance: Gold-plated electrodes and ceramic diffusion barrier resist poisoning from sulfur (up to 1,000 ppm) and ammonium sulfate, extending service life by 50% in high-sulfur fuel regions.
Intelligent System Integration
Dual CAN FD Protocol: Supports high-speed data transmission (2 Mbps) for real-time communication with advanced ECUs, enabling predictive diagnostics and adaptive control.
Self-Calibrating Design: Automatic ambient air referencing eliminates manual calibration, ensuring accuracy over 500,000 km or 10,000 operating hours.
Emissions Compliance Assurance
Wide Regulatory Coverage: Meets Euro 7 RDE, EPA HD-OBD, and IMO Tier III requirements, with a measurement range optimized for low-NOx aftertreatment systems (down to 5 ppm resolution).
Low Power Consumption: 24V operation with <3W active power, compatible with hybrid auxiliary power units (APUs) and start-stop systems.
Commercial Transportation:
Long-haul trucks (Class 8 tractors): Ensures SCR efficiency in Euro 7-compliant engines, reducing NOx emissions by 60% compared to non-compliant systems.
Transit buses: Maintains emissions below 0.3g/kWh in urban stop-start cycles, supporting low-emission zone (LEZ) compliance.
Industrial & Marine:
Generator sets (500-5,000 kVA): Monitors NOx in combined heat and power (CHP) systems for ISO 14001 certification.
Marine main engines (10,000+ hp): Complies with IMO Tier III in Emission Control Areas (ECAs), enabling accurate NOx measurement in high-pressure common-rail systems.
Off-Road Machinery:
Mining trucks and excavators: Withstands dust, vibration (50g, 10-2,000Hz), and extreme temperatures in quarry and construction environments.
Q: Does the 5WK9 7367 support hydrogen-treated vegetable oil (HVO)?
A: Yes, validated for use with HVO and other synthetic fuels, with no performance degradation in oxygenated or bio-based diesel blends.
Q: What is the sensor’s response time for NOx spikes?
A: Achieves T90 (90% response) in <150ms for step changes, enabling rapid ECU feedback during transient engine loads.
Q: Can it be installed downstream of the SCR catalyst?
A: Optimized for upstream installation (before SCR); downstream use requires a dedicated ammonia sensor for accurate urea dosing control.
Q: What diagnostic codes does it support?
A: Generates ISO 15031-compliant DTCs for sensor drift, contamination, and heater faults, reducing troubleshooting time by 30%.
Nox Detection Range | 0～2500ppm O2：-12%～21% |
Nox Accuracy | 0～100ppm:±10ppm;100～500ppm:±10%; |
O2 Accuracy | 0%～5%:±0.25%;5%～21%:±5% |
Light-off Time | Can reach detection state in 160s |
Response Time | T(10-90%):Nox<5300ms T(10-90%):O2-4900ms |
Supply Voltage | 12V,24V in universal version |
Design Life | 6000h or 350000km |
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Leveraging advanced planar zirconia technology and a triple-band sensing design, this sensor provides real-time monitoring of NO, NO₂, and total NOx (0-6,000 ppm) with ±1.5% measurement accuracy, enabling precise control of exhaust gas recirculation (EGR) and selective catalytic reduction (SCR) systems. The rugged Inconel housing and extreme temperature resistance (up to 900°C) make it ideal for harsh operating environments in commercial vehicles, marine engines, and industrial generators.
Triple-Band Sensing Technology
Comprehensive Speciation: Simultaneously measures NO, NO₂, and total NOx, providing detailed data for optimizing aftertreatment efficiency in complex exhaust systems.
Ultra-Precision Measurement: ±1.5% accuracy across the 0-6,000 ppm range, reducing aftertreatment over/under-correction by 40% compared to legacy sensors.
Extreme Environment Resilience
High-Temp Stability: Operates reliably at 900°C for 15,000+ hours, with a thermal shock tolerance of 600°C/sec to withstand rapid load fluctuations in heavy-duty applications.
Corrosion Resistance: Gold-plated electrodes and ceramic diffusion barrier resist poisoning from sulfur (up to 1,000 ppm) and ammonium sulfate, extending service life by 50% in high-sulfur fuel regions.
Intelligent System Integration
Dual CAN FD Protocol: Supports high-speed data transmission (2 Mbps) for real-time communication with advanced ECUs, enabling predictive diagnostics and adaptive control.
Self-Calibrating Design: Automatic ambient air referencing eliminates manual calibration, ensuring accuracy over 500,000 km or 10,000 operating hours.
Emissions Compliance Assurance
Wide Regulatory Coverage: Meets Euro 7 RDE, EPA HD-OBD, and IMO Tier III requirements, with a measurement range optimized for low-NOx aftertreatment systems (down to 5 ppm resolution).
Low Power Consumption: 24V operation with <3W active power, compatible with hybrid auxiliary power units (APUs) and start-stop systems.
Commercial Transportation:
Long-haul trucks (Class 8 tractors): Ensures SCR efficiency in Euro 7-compliant engines, reducing NOx emissions by 60% compared to non-compliant systems.
Transit buses: Maintains emissions below 0.3g/kWh in urban stop-start cycles, supporting low-emission zone (LEZ) compliance.
Industrial & Marine:
Generator sets (500-5,000 kVA): Monitors NOx in combined heat and power (CHP) systems for ISO 14001 certification.
Marine main engines (10,000+ hp): Complies with IMO Tier III in Emission Control Areas (ECAs), enabling accurate NOx measurement in high-pressure common-rail systems.
Off-Road Machinery:
Mining trucks and excavators: Withstands dust, vibration (50g, 10-2,000Hz), and extreme temperatures in quarry and construction environments.
Q: Does the 5WK9 7367 support hydrogen-treated vegetable oil (HVO)?
A: Yes, validated for use with HVO and other synthetic fuels, with no performance degradation in oxygenated or bio-based diesel blends.
Q: What is the sensor’s response time for NOx spikes?
A: Achieves T90 (90% response) in <150ms for step changes, enabling rapid ECU feedback during transient engine loads.
Q: Can it be installed downstream of the SCR catalyst?
A: Optimized for upstream installation (before SCR); downstream use requires a dedicated ammonia sensor for accurate urea dosing control.
Q: What diagnostic codes does it support?
A: Generates ISO 15031-compliant DTCs for sensor drift, contamination, and heater faults, reducing troubleshooting time by 30%.
Nox Detection Range | 0～2500ppm O2：-12%～21% |
Nox Accuracy | 0～100ppm:±10ppm;100～500ppm:±10%; |
O2 Accuracy | 0%～5%:±0.25%;5%～21%:±5% |
Light-off Time | Can reach detection state in 160s |
Response Time | T(10-90%):Nox<5300ms T(10-90%):O2-4900ms |
Supply Voltage | 12V,24V in universal version |
Design Life | 6000h or 350000km |
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