Clamp-on Ultrasonic Flow Meter

Model: WCFM400 series
Features:
1. Non-invasive installation, no downtime
2. High accuracy, wide range
3. Strong interference resistance and high penetration
4. Multiple outputs, smart connectivity
5. All-media compatibility, wide application
| Product Overview
The WCFM400 series clamp-on ultrasonic flow meter produced by winchen sensor is a non-invasive liquid flow monitoring sensor based on the ultrasonic transit-time measurement principle. The product adopts a clamp-on installation design: the sensor simply attaches to the outer wall of the pipe to complete measurement, with no pipe cutting, no interruption of operation and no production shutdown.
. The WCFM400 series clamp-on ultrasonic flow meter, offers outstanding bubble interference resistance and signal penetration, supporting 4-20mA current output, RS485, OCT upper/lower limit alarm output and more. It integrates seamlessly with data center BMS, SCADA and other management systems, and supports both retrofit and new-build projects; for new projects it also serves as a highly cost-effective flow metering solution, widely compatible with water, ultrapure water, deionized water, glycol coolant, alcohol and oils and other single, uniform liquids that conduct ultrasound, and suitable for data center liquid cooling, the semiconductor industry, food and beverage, and fine chemicals and many other flow monitoring scenarios.
 
| Features
1. Non-invasive installation, no downtime: Clamp-on installation requires no pipe cutting and no interruption of production, as the sensor simply attaches to the pipe wall — particularly suitable for critical scenarios such as data centers where downtime is unacceptable.
2. High accuracy and wide range: Using the ultrasonic transit-time principle, flow measurement accuracy is better than±2%. The flow velocity range covers 0.1m/s to±5m/s, handling wide dynamic measurement needs from low to high flow velocities.
3. Strong interference resistance and high penetration: It withstands continuous bubble interference for 5 seconds and penetrates strongly through scale, corrosion and linings on the inner pipe wall.
4. Multiple outputs, smart connectivity: It supports RS485, 4-20mA, OCT upper/lower limit alarms, pulse and other output methods. It connects seamlessly with data center BMS and other systems to enable remote monitoring and intelligent O&M of the cooling system.
5. All-media compatibility, wide application: It precisely measures water, ultrapure water, deionized water, glycol coolant, propylene glycol mixtures, fluorinated liquids, mineral oil and many other liquid cooling media.
6. No pressure loss, aiding optimization: With no moving parts, there is no pressure loss during measurement. The zero-pressure-loss design effectively reduces the energy consumption of the CDU circulation pump, and long-term operation helps continuously optimize the data center.
 
| Technical Specifications

Measurement accuracy ±2.0% (0.3m/s-5.0m/s) Flow velocity range 0.1 m/s-5.0m/s
Linearity ±2.0% (0.3m/s-5.0m/s) Repeatability 0.8%
Response time 50ms Screen display 2.4-inch 320*240 IPS LCD, rotates in four directions
Menu languages Simplified Chinese, Traditional Chinese, English Totalizer 7-digit flow totalizer
Displayed data Instantaneous flow, instantaneous flow velocity, net total, batch total,
daily maximum, daily minimum, and hourly/daily/monthly/annual totals
Display units Supports metric and imperial unit selection: m3/h, LPM, ml/min, GPM, LPH,
with the factory default unit being ml/min
Totalized data retention 10 years, 64 months, 64 days Operation keys 4 touch keys
Calendar battery CR1220 Power configuration 24VDC@3W
Analog output 4-20mA, maximum load 6000 Communication interface RS485, supporting the Modbus RTU protocol
Alarm output OCT upper/lower limit alarm output, pulse output and more Relay output 30VDC@1A, switching frequency less than 2Hz
Compatible media Water, solutions, chemical reagents (impurity≤4%) Waterproof rating IP65
Installation method Clamp-on split type; the clamp-pipe design tightens with hand-turned screws Pipe diameter specifications 6-12.7
Wetted materials Non-contact Media temperature 10°C-60°C
Ambient temperature 10°C-50°C Ambient humidity Relative humidity 0%-95%, non-condensing
Compatible viscosity <300CST(mm2/s) Cable length 2.0 m (extendable to 20 m)

| Application Scenarios

Thanks to its no pipe cutting, no interruption of operation, no production shutdown and outstanding performance, the WCFM400 series clamp-on ultrasonic flow meter is widely used in the following scenarios:
1. AI liquid-cooled data centers: The WCFM400 series clamp-on ultrasonic flow meter plays a key monitoring role in AI liquid-cooled data centers. Without cutting pipes it can be installed non-invasively on each liquid cooling branch, monitoring coolant flow in real time; the abnormal alarm function promptly flags risks of uneven flow or blockage, ensuring coolant is evenly distributed to every heat-generating node. The zero-pressure-loss design reduces the energy consumption of the CDU circulation pump, helping continuously optimize the data center PUE.
2. Semiconductor industry: pure water/ultrapure water production and distribution systems.
3. Food and beverage: sanitary flow monitoring for CIP cleaning systems, batching and metering, and more

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