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Help CenterKyue Clamp-on Wallmounted Ultrasonic Flowmeter Non-contact Flowmeter Non-intrusive Ultrasonic Flow Meter for Sewage Heat Meter
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1. Product Overview
1.1 Product Introduction
KYUF800 ultrasonic flowmeter is a high-precision, non-contact flow measurement instrument based on the Time-of-Flight (TOF) principle. It calculates fluid flow velocity and volumetric flow rate by measuring the time difference of ultrasonic pulses propagating downstream and upstream through the fluid. Suitable for various clean liquids—and even liquids containing moderate bubbles or suspended particles—it offers significant advantages such as easy installation, no pressure loss, and low maintenance costs.
1.2 Key Features
High Measurement Accuracy: Up to ±0.5% to ±1.0% of reading (depending on model and operating conditions).
Wide Turndown Ratio: Up to 1:100 or higher, ideal for applications with large flow variations.
No Pressure Loss, No Obstruction: Sensors are mounted externally on the pipe wall, ensuring no flow disturbance or pressure drop.
Easy Installation & Maintenance: Can be installed without interrupting flow, eliminating the need for pipe cutting and reducing downtime significantly.
Versatile Medium Compatibility: Suitable for various homogeneous liquids such as water, seawater, oils, chemicals, and alcohols.
Multiple Output Options: Equipped with analog (4–20 mA), pulse, and relay alarm outputs; supports multiple communication protocols (e.g., MODBUS-RTU, HART, PROFIBUS DP).
Data Logging & Self-Diagnostics: Built-in data logger with self-diagnostic functions for signal quality and installation status.
Intuitive Chinese Interface: Large LCD with Chinese menu support for user-friendly operation.
1.3 Typical Applications
Water supply, raw water, reclaimed water, and wastewater measurement
Process monitoring in petroleum and chemical industries
Heating, ventilation, and cooling (HVAC) circulation systems
Energy management (water, heat, and cooling energy measurement)
Food & beverage, pharmaceutical industries
Irrigation and water resource monitoring
2. Technical Specifications
2.1 Main Performance Parameters
| Parameter | Specification |
|---|---|
| Measurement Principle | Time-of-Flight (Transit-Time Difference) |
| Measured Medium | Homogeneous liquids capable of transmitting ultrasonic waves stably |
| Accuracy | ±0.5% to ±1.0% of reading (under standard conditions) |
| Repeatability | ±0.2% of reading |
| Flow Velocity Range | –32 m/s to 0 to +32 m/s (bidirectional measurement) |
| Pipe Diameter Range | Clamp-on: ≥ DN15; Insertion/Sectional type: DN15 to DN6000 |
| Straight Pipe Requirements | Upstream ≥ 10D, Downstream ≥ 5D (D = nominal diameter; longer recommended where possible) |
| Measurement Channels | Single or dual channels (dual recommended for high accuracy or complex flow profiles) |
2.2 Electrical Characteristics
| Parameter | Specification |
|---|---|
| Power Supply | DC 8–36 V or AC 85–265 V, 50/60 Hz (depending on model) |
| Power Consumption | ≤ 5 W |
| Outputs | Isolated 4–20 mA (load ≤ 500 Ω), OCT (pulse/frequency), relay (alarm/batch control) |
| Communication Interface | RS-485 with MODBUS-RTU protocol (standard); optional HART, PROFIBUS DP, etc. |
| Input | Expandable temperature input (Pt100/Pt1000) for heat/energy measurement |
2.3 Mechanical & Environmental Specifications
| Parameter | Specification |
|---|---|
| Sensor Protection Rating | IP68 (submersible) |
| Transmitter Protection Rating | IP65 (panel/wall mount-standard type) |
| Ambient Temperature | Transmitter: –20°C to +60°C; Sensor: –40°C to +160°C (depends on sensor type) |
| Medium Temperature | Standard: –40°C to +120°C; High-temperature model: up to +200°C (special types) |
| Storage Temperature | –40°C to +70°C |
| Humidity | ≤ 95% RH, non-condensing |
3.Packaging
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