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| Categories | HVAC & Building Management System | 
|---|---|
| Brand Name: | Flo-Instru | 
| Model Number: | ST501 | 
| Certification: | CE; ISO9001 | 
| Place of Origin: | ShenZhen | 
| MOQ: | 1 | 
| Payment Terms: | T/T | 
| Delivery Time: | 3-5 working days | 
| Packaging Details: | Conventional Packaging | 
| Velocity range: | 0 ~ ±16ft/s (0 ~ ±5m/s) | 
| Accuracy: | ±1.0% of measured value Energy class: 2 | 
| Pipe size: | Clamp-on:1"~48" (25mm~1200mm) | 
| Fluid: | Water, Sea water, Oil, Alcohol... | 
| Pipe material: | PVC, Carbon Steel, Stainless Steel, Copper, ect | 
| Outputs: | Analog output: 4~20mA, max load 750Ω. Pulse output: 0~9999Hz, OCT, (min. and max. frequency is adjustable) Relay output: max 1Hz, (1A@125V AC or 2A@30V DC) | 
| Communication interface: | RS485 | 
| Power supply: | 24V DC/1A | 
| Keypad: | 16(4×4) key with tactile action | 
| Display: | 20×2 lattice alphanumeric, back lit LCD. | 
| Temperature: | Transmitter: 32℉~140℉ (0℃~60℃) Transducer: 32℉~140℉ (0℃~60℃) Temperature sensor: 32℉~257℉(0℃~125℃) | 
| Humidity: | Up to 99% RH, non-condensing | 
| Transmitter: | Aluminum Alloy, IP65. | 
| Transducer: | Encapsulated design, IP68. | 
| Transducer cable: | Standard cable length: 33ft (10m) | 
| Company Info. | 
| Flo-Instruments Co., Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
ST501-PT100 Ultrasonic Energy Meter
Clamp-on type ultrasonic energy meters for cooling and heating consumption measurement.
Introduction
ST501 is a high-accuracy ultrasonic flow meter with clamp-on transducers measuring big pipe diameter, which is built-in RTD module. When it is equipped with PT100 temperature sensor, ST501 can be upgraded into energy meter used for measuring individual energy consumption in any liquid heating/cooling systems. The meter is supplied complete with flowmeter and temperature sensor, which can makes the system real-time detect the temperature of supply and return pipe.
The energy meter can be widely applied in various applications, like HVAC, cooling tower, data center, energy audit, and building(shipping mall, office, museum, hospital, school, subway etc.). Energy meter, also called thermal energy meter or heat meter, is used to accurately measure heat consumption in heating and cooling facilities so as to reach energy-saving and cost-saving.
Benefits
Principle
TVT(Transit-Time Vortex) technology represents a cutting-edge approach to ultrasonic flow measurement, combining the principles of transit-time ultrasonics with the capability to harness the vortex shedding phenomenon, delivering unparalleled accuracy and versatility in ultrasonic flow meters. This innovative integration technology enhances the accuracy, versatility, and performance of ultrasonic flow meters, making them well-suited for a wide range of applications across various industries and is a valuable solution for industries requiring precise flow measurements in varying flow conditions.
TVT technology excels in applications where fluid flow conditions vary between laminar and turbulent. The incorporation of vortex shedding data enhances accuracy in challenging flow environments.
TVT technology is versatile and suitable for a wide range of fluid types, including liquids with varying viscosities and densities.
Specifications
| Measurement | General Data | |
| Flow | Flow Unit | |
| Velocity Rate | 0.03~±16ft/s(0.01 ~±5m/s) | Support metric unit selection, Cubic Meters(m³),Liters(l), USA Gallons(gal)./hour,/min,The factory default unit is m³per hour. | 
| Accuracy | +1.0% | |
| Repeatability | 0.3% | |
| Pipe Size | DN25~DN1200(1”"~48") | |
| Liquid | Water,Sea water,Oil,Alcohol… | Energy Unit | 
| Pipe Material | Carbon Steel,Stainless Steel,PVC… | Giga Joule (GJ),Kilocalorie (Kc), KWh,BTU | 
| Power Supply | 24 VDC | |
| Cable Length | 10m | Totalizer | 
| Key Panel | 16(4×4)touch keys | 6 bit flow rate totalizer. | 
| Display | 20×2,alphanumeric,backlit LCD | Communication &Output | 
| Ambient Temp | 32°F~+140°F(0℃~60℃) | ModBus RS485,4~20mA, Maximum load:750Ω OCT upper and lower limit alarm | 
| Fluid Temp. | 32°F~+140°F(0℃~60℃) | |
| PT100 Temp.Sensor | 32°F~257°F(0℃~125℃) | |
| Ambient Humidity | RH 0~95%,No condensation | Housing Material | 
| IP Rate | Transmitter:IP65 | Aluminum alloy | 
| Transducer:IP68 | ||





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