Technical Characteristics and Process Resilience
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Extreme Temperature and Pressure: The FQR57 is specifically built for high-heat environments like fly ash systems or hot clinker transport, supporting temperatures up to 450°C (+842°F) and pressures up to 20 bar (290 psi).
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Versatile Monitoring Capabilities: In addition to standard min/max limit detection, the system provides integrated bulk flow monitoring (flow/no flow and trend analysis), making it an essential tool for identifying blockages or empty conveyor states.
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Non-Contact Reliability: The transmitter can emit signals through non-metallic windows or container walls. This wear-free and maintenance-free approach is ideal for abrasive bulk solids such as gravel, sand, cement, or coal.
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Filter and Deposit Analysis: The FQR57 can be used to detect and analyze contamination or deposits within filters and conduits, providing data for predictive maintenance cycles.
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Intuitive System Control: When paired with the Nivotester FTR525, the system offers easy operation via a graphical display, which simplifies commissioning and provides clear diagnostic feedback.
Technical Specification Matrix
| Feature | Technical Details |
| Measuring Principle | Microwave Barrier (Transmitter/Emitter) |
| Interaction | Pairs with Soliwave FDR57 Receiver |
| Process Temperature | Up to +450 °C (+842 °F) |
| Process Pressure | Up to 20 bar (290 psi) |
| Monitoring Modes | Point level, Flow/No Flow, Flow Trend, Object Counting |
| Process Connections | R 1 1/2″, 1 1/2″ NPT, G 1 1/2″ |
| Safety Approvals | International Explosion Protection (ATEX, IECEx, etc.) |
Primary Applications
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Hot Ash and Clinker Monitoring: Measuring levels and flow in power plants or cement works where material temperatures exceed the limits of standard sensors.
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Material Transfer Points: Monitoring the handover of bulk solids between conveyor belts to ensure continuous flow and prevent pile-ups.
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High-Pressure Vessel Leveling: Non-invasive point level detection in pressurized chemical reactors or silos through a non-conductive sight glass.
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Filter Contamination Detection: Identifying buildup in industrial filter systems to optimize cleaning pulses and prevent filter failure.
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Object Detection and Positioning: Counting and positioning large piece goods, bags, or containers on automated industrial lines.
