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| Categories | Data Center |
|---|---|
| Model Number: | ST502 |
| Pipe Size: | DN25-DN5000 |
| MOQ: | 1 |
| Repeatability: | 0.15% |
| Brand Name: | Flo-Instru |
| Output: | 4-20mA, OCT pulse output, relay output, RS-232 / RS-485, RTD temp. input |
| Delivery Time: | 3-5 working days |
| Payment Terms: | T/T |
| Velocity Range: | 0.03 ~±40ft/s (0.01~±12m/s) |
| Packaging Details: | Conventional Packaging |
| Certification: | CE; ISO9001 |
| Transducers temperature: | -40℉ ~ +140℉ (-40℃~+60℃) |
| Place of Origin: | Shenzhen |
| Power Supply: | 24V DC |
| Company Info. |
| Flo-Instruments Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
ST502 Ultrasonic Flowmeter utilizes transit-time methods to measure liquid flow in industrial systems, delivering high-accuracy flow data through clamp-on transducers that never contact the fluid.
TVT (Transit-Time Vortex) technology combines transit-time ultrasonics with vortex shedding phenomenon, delivering unparalleled accuracy and versatility in ultrasonic flow measurement.
The device uses ultrasonic transducers installed on the pipe exterior. One transducer sends pulses downstream with flow, while the other sends upstream against flow. The time difference between signals is proportional to flow velocity.
| Parameter | Specification |
|---|---|
| Velocity Range | 0.03 ~ ±40ft/s (0.01 ~ ±12m/s) |
| Accuracy | ±0.5% |
| Pipe Size | 1"~200" (25mm~5000mm) |
| Repeatability | 0.15% of measured value |
| Linearity | ±1.0% |
| Fluid Compatibility | Water, Sea water, Oil, Alcohol... |
| Pipe Material | PVC, stainless steel, carbon steel, copper... |
| Feature | Specification |
|---|---|
| Communication | ModBus RS485 |
| Analog Output | 4~20mA, max load 750Ω |
| Pulse Output | 0~9999Hz, OCT |
| Relay Output | max 1Hz (1A@125V AC or 2A@30V DC) |
| Power Supply | 24V DC/1A max |
| Temperature Range | -40°F~140°F (-40°C~60°C) |
| Humidity | Up to 99% RH, non-condensing |
Transmitter
Normal Transducer
High-temperature Transducer
Ultra High-temperature Transducer
The ST502 offers multiple communication and output options for seamless integration into industrial control systems, enabling real-time data acquisition and remote monitoring.
| Output Type | Function | Application Examples |
|---|---|---|
| RS485 (Modbus) | Digital communication | Remote monitoring, SCADA, system integration |
| 4-20mA | Analog input/output | PLC input, process feedback, DCS systems |
| OCT Pulse | Flow totalization output | Batch controllers, energy meters, flow loggers |
| Relay | Alarm/control output | Trigger alarms, control valves/pumps, flow safety protection |
V Method Standard method providing accurate readings for pipe diameters 25mm
to 400mm (1"~16"). Requires proper transducer installation at pipe
centerline with equal spacing. |  |
Z Method Utilizes directly transmitted signals with less attenuation.
Suitable for pipe diameters 100mm to 3000mm (4"~120"). |  |
N Method Sound waves traverse fluid twice and bounce three times off pipe
walls. Suitable for small pipe diameters, improving accuracy by
extending transit distance. |  |
W Method Sound waves traverse fluid four times and bounce four times off
pipe walls. Suitable for very small pipes (diameters less than
50mm, 2"). |  |
|
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