Liquid Flowmeters
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| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST306D50-BF223 |
| Nominal Diameter | DN50 |
| Flow Velocity Range | 0.1–10 m/s (for water) |
| Temperature Measurement Range | −20 °C to +150 °C |
| Temperature Accuracy | ±0.1 °C (0–100 °C) |
| Output Signals | 4–20 mA (2-wire), RS485 (Modbus RTU) |
| Protection Rating | IP65 |
| Power Supply | 24 VDC (wide-input) or Li-based battery (≥6 years lifespan) |
| Pipe Material Options | Carbon steel or AISI 304 stainless steel |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST305SBCS1 |
| Medium | Cooling water, circulating water (homogeneous, single-phase, low-viscosity liquid |
| Pipe ID Range | DN50–DN3000 mm |
| Material Compatibility | Carbon steel, stainless steel, cast iron, PVC, PE (non-metallic wall thickness ≤20 mm) |
| Velocity Range | 0.1–10 m/s |
| Accuracy | ±1.0% linearity, ±0.5% repeatability (standard conditions) |
| Pressure Rating | ≤1.6 MPa |
| Operating Temperature (probe) | −20 °C to +80 °C |
| Power Supply | AC 220 V ±10% (50/60 Hz) or DC 24 V ±15% |
| Output Signals | 4–20 mA (load 250–750 Ω), RS485 (Modbus-RTU) |
| Display | Backlit LCD showing instantaneous flow, cumulative flow, velocity |
| Environmental Robustness | Vibration resistance (≤50 Hz, amplitude ≤0.1 mm), EMI immunity (electric field ≤10 V/m, magnetic field ≤100 A/m) |
| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST940M-3CY10 |
| Measurement Principle | Non-contact ultrasonic time-of-flight (TOF) |
| Flow Range | 0.01–10,000 m³/h (channel-dependent) |
| Velocity Range | 0.01–5.0 m/s |
| Level Range | 0.02–3.0 m (customizable) |
| Velocity Accuracy | ±1.0% FS |
| Level Accuracy | ±0.5% FS |
| Flow Accuracy | ±2.0% FS (standard rectangular/trapezoidal channels) |
| Operating Temperature | −20 °C to +60 °C |
| Storage Temperature | −30 °C to +70 °C |
| Humidity | ≤95% RH (non-condensing) |
| Sensor IP Rating | IP68 |
| Transmitter IP Rating | IP65 |
| Analog Outputs | 4–20 mA, 0–10 V |
| Digital Output | RS485 (Modbus RTU) |
| Relay Outputs | 2-channel (configurable for alarm/control) |
| Power Supply | AC 220 V ±10% / 50 Hz or DC 24 V ±10% |
| Data Storage | ≥1 year (1 record/hour), USB/RS485 export supported |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST305SBCS125 |
| Accuracy | ±1.0% FS |
| Velocity Range | 0.01–12.0 m/s (bidirectional) |
| Pipe Diameter Range | DN15–DN2000 |
| Medium | Municipal sewage, industrial wastewater, water, and other single-phase liquids |
| Sensor Material | Stainless steel (316L typical) |
| Converter Operating Temperature | −10°C to +45°C |
| Relative Humidity | ≤85% RH |
| Enclosure Rating | IP65 |
| Communication | RS-485, MODBUS RTU |
| Cable | Twisted-pair shielded, standard length 9 m (max. 1000 m with repeater) |
| Repeatability | ±0.2% FS |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST306D50-BF223 |
| Nominal Diameter | DN50 |
| Flow Range | 0.01–1000 m³/h |
| Heat Energy Range | 0.01–10,000 GJ |
| Temperature Range | 4–150 °C |
| ΔT Range | 2–70 °C |
| Max Working Pressure | 1.6 MPa |
| Protection Rating | IP65 |
| Communication | RS485 (Modbus RTU) |
| Power Supply | 220 V AC or optional lithium battery |
| Brand | YST (Dalian Yisite) |
|---|---|
| Origin | Liaoning, China |
| Model | YST940M-3CY10 |
| Flow Range | 0.01–1000 m³/h |
| Level Range | 0.1–10 m |
| Flow Accuracy | ±1.0% to ±2.5% FS |
| Level Accuracy | ±0.5% FS |
| Operating Temperature | −20 °C to +60 °C |
| Enclosure Rating | IP67 |
| Power Supply | 220 V AC (solar option available) |
| Communication | RS485, Modbus RTU |
| Data Storage | 8 GB internal flash (≥5 years at 1-min logging interval) |
| Sensor Material | PTFE-coated transducer |
| Housing Material | Corrosion-resistant engineering plastic |
| Brand | YST (Dalian Yisite) |
|---|---|
| Origin | Liaoning, China |
| Model | YST940M-3CY10 |
| Measurement Principle | Ultrasonic Time-of-Flight (ToF) Level Sensing + Hydraulic Algorithm-Based Flow Calculation |
| Flow Range | 0.01–10,000 m³/h (channel-dependent) |
| Level Range | 0.02–3.0 m (customizable) |
| Velocity Range | 0.01–5.0 m/s |
| Level Accuracy | ±0.5% FS |
| Velocity Accuracy | ±1.0% FS |
| Flow Accuracy | ±2.0% FS (for standard rectangular/trapezoidal channels) |
| Operating Temperature | −20°C to +60°C |
| Storage Temperature | −30°C to +70°C |
| Humidity | ≤95% RH (non-condensing) |
| Sensor IP Rating | IP68 |
| Transmitter IP Rating | IP65 |
| Analog Outputs | 4–20 mA, 0–10 V |
| Digital Output | RS485 Modbus RTU |
| Relay Outputs | 2-channel (configurable) |
| Power Supply | AC 220 V ±10% / 50 Hz or DC 24 V ±10% |
| Data Logging | ≥8,760 records (1 sample/hour for 1 year), USB export supported |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST940M-3CY10 |
| Measurement Range | Water Level 0.1–5 m, Flow Rate 0.01–10,000 m³/h |
| Measurement Principle | Non-contact ultrasonic (time-of-flight + Doppler dual-mode adaptive) |
| Flume Compatibility | Rectangular weirs, triangular (V-notch) weirs, trapezoidal weirs, Parshall flumes |
| Power Supply | 220 V AC / 12 V DC (solar option available) |
| Communication | RS485, Ethernet, optional 4G/NB-IoT |
| Operating Temperature | −40 to +80 °C with real-time temperature compensation |
| Enclosure Rating | IP65 (main unit), IP68 (transducer) |
| Data Storage | ≥100,000 records in embedded Flash |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST940M-3CY10 |
| Measurement Principle | Ultrasonic Time-of-Flight (Transit-Time) Method |
| Flow Velocity Range | 0.01–12 m/s |
| Water Level Range | 0–500 cm (customizable) |
| Operating Temperature | −20 °C to +70 °C |
| IP Rating | IP67 |
| Power Supply | DC 12–24 V (solar-compatible) |
| Communication Interface | RS485 with Modbus RTU protocol |
| Housing Material | Anodized Aluminum Alloy |
| Brand | YST (Dalian Yisite) |
|---|---|
| Origin | Liaoning, China |
| Model | YST940M-3CY10 |
| Measurement Range | 0.01–10,000 m³/h |
| Accuracy | ±1.0% (with standard flume) |
| Level Range | 0.1–5 m |
| Power Supply | 24 VDC (100 mA), optional 220 VAC or solar |
| Communication | RS485 (Modbus RTU), optional 4G/NB-IoT |
| Enclosure Rating | IP65 (transmitter), IP68 (sensor) |
| Operating Temperature | −20 °C to +60 °C (transmitter), −20 °C to +80 °C (sensor) |
| Data Storage | ≥100,000 records in onboard Flash memory |
| Compatible Flumes | Palmer-Bowlus (Parshall), V-notch (triangular), and rectangular weirs |