Technical Characteristics and Operational Versatility
-
Mid-Range Capability: The FMU41 extends the compact transmitter performance to reach up to 8 meters in liquids and 3.5 meters in bulk solids. This makes it a versatile solution for municipal water management, chemical processing, and industrial material handling.
-
Advanced Signal Diagnostics: A standout feature is the four-line plain text display that provides on-site visualization of the envelope curve. This allows operators to perform advanced echo analysis, ensuring the sensor ignores false reflections from agitators, heating coils, or vessel walls.
-
Flexible Electrical Integration: The device is available in both two-wire (loop-powered) and four-wire versions. This flexibility allows it to fit into standard control loops or applications where a separate power supply is preferred for higher signal output.
-
Precision Temperature Compensation: Sound velocity changes with temperature. The FMU41 includes an integrated temperature sensor that compensates for these fluctuations in real-time, maintaining high accuracy even in outdoor silos or tanks exposed to direct sunlight.
-
Maintenance-Free PVDF Sensor: The sensor is hermetically sealed, potted, and constructed from high-quality PVDF. This ensures it remains unaffected by corrosive liquids or moisture ingress, significantly reducing service requirements compared to mechanical level indicators.
مصفوفة المواصفات الفنية
| ميزة | التفاصيل الفنية |
| مبدأ القياس | الموجات فوق الصوتية (بدون تلامس) |
| أقصى مدى (للسوائل) | 8 m (26 ft) |
| أقصى مدى (للمواد الصلبة) | 3.5 m (11 ft) |
| مسافة الحجب | 0.35 m (1.15 ft) |
| درجة حرارة العملية | من -40 إلى +80 درجة مئوية (من -40 إلى +176 درجة فهرنهايت) |
| ضغط العملية | 0.7 to 3 bar (10 to 44 psi) |
| مادة المستشعر | مادة PVDF (مغلقة بإحكام) |
| درجة الحماية | IP 68 (المستشعر) / IP 66 (الهيكل) |
التطبيقات الأساسية
-
Medium-Sized Storage Tanks: Level monitoring for oils, fuels, water, and aggressive chemicals.
-
Open Channel Flow: Measuring flow rates in large flumes and weirs using the integrated 32-point linearization function.
-
Agitated Vessels: Reliable level detection in process tanks with stirrers or mixers, utilizing adjustable echo suppression.
-
Bulk Solids Handling: Monitoring levels in hoppers, at conveyor discharge points, or on small-scale stockpiles.
-
Hazardous Area Monitoring: Fully certified for use in explosion-hazardous areas with international Gas-Ex and Dust-Ex approvals.
