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| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST183F-A50XL |
| Nominal Diameter | DN800 |
| Measurement Principle | Faraday’s Law of Electromagnetic Induction |
| Flow Velocity Range | 0.01–10 m/s |
| Accuracy | ±0.5% FS (optional ±1.0% FS) |
| Medium Conductivity | ≥5 µS/cm |
| Temperature Range | –20 to +180 °C (dependent on liner material) |
| Pressure Rating | 0.6–4.0 MPa |
| Liner Material | PTFE |
| Electrode Material | 316L Stainless Steel |
| Enclosure Protection | IP65 |
| Output Signals | 4–20 mA analog, pulse output |
| Communication Interface | RS485 (Modbus RTU) |
| Power Supply | 220 VAC ±10%, 50/60 Hz |
| Wetted Materials Compliance | FDA-compliant PTFE liner per ASTM D1711 |
| Electromagnetic Compatibility | IEC 61326-1 (Industrial Environment) |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST208B-CR810 |
| Measuring Range | 0.2–10 m (expandable) |
| Accuracy | ±1% FS or ±5 mm (whichever is greater) |
| Resolution | 1 mm |
| Ultrasonic Frequency | 20–50 kHz |
| Operating Temperature (Sensor) | −10°C to +60°C |
| Enclosure Rating | Sensor IP68, Main Unit IP65 |
| Output Signals | 4–20 mA analog, RS485 digital |
| Power Supply | 220 V AC or 24 V DC |
| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST305D80BF223 |
| Pipe Size | DN80 |
| Flow Velocity Range | 0.01–15 m/s |
| Accuracy | ±0.5% of reading (v ≥ 0.3 m/s), ±1.0% of reading (0.1 ≤ v < 0.3 m/s) |
| Repeatability | ≤ ±0.2% |
| Medium | Single-phase liquid with ≤1% suspended solids, viscosity ≤1000 cP |
| Sensor Operating Temperature | −40°C to +80°C |
| Converter Operating Temperature | −20°C to +60°C |
| Humidity | ≤95% RH (non-condensing) |
| IP Rating | IP65 |
| Output | 4–20 mA DC (load ≤750 Ω), pulse (0–1000 Hz, 50% duty cycle) |
| Communication | RS485 Modbus-RTU |
| Power Supply | AC 220 V ±10% (50/60 Hz) or DC 24 V ±15% |
| Power Consumption | ≤15 W |
| Wetted Materials | Carbon steel spool body, GB/T 9119 flanges, piezoelectric ceramic transducers |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–500 / 0–1000 / 0–5000 mg/L (field-selectable) |
| Operating Temperature | 0–50 °C |
| Relative Humidity | ≤90% RH (non-condensing) |
| Output Signals | 4–20 mA analog, RS485 digital |
| Power Supply | AC 220 V ±10% @ 50/60 Hz or DC 24 V ±10% |
| Installation | Submersible |
| Probe IP Rating | IP68 |
| Enclosure IP Rating | IP65 |
| Compliance | Designed for continuous in-situ SS monitoring per ISO 7027 (turbidity correlation), ASTM D3977, and EPA Method 160.1 principles |
| Brand | YST (Dalian Yist Instruments) |
|---|---|
| Origin | Liaoning, China |
| Model | YST209B-RP880 |
| Measurement Range | -1999 to +1999 mV |
| Accuracy | ±2 mV @ 25 °C |
| Response Time | ≤10 s (to 90% of final value) |
| Temperature Compensation | Automatic, 0–100 °C |
| Output Signals | Isolated 4–20 mA + RS485 digital interface |
| Sensor IP Rating | IP68 |
| Transmitter IP Rating | IP65 |
| Operating Ambient | 0–60 °C, ≤90% RH (non-condensing, away from strong magnetic fields) |
| Power Supply | 220 V ±10%, 50 Hz |
| Installation Type | Submersible (tank/pipeline) |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST820CY10 |
| Measurement Range | 0.2–10 m |
| Accuracy | ±0.5% FS |
| Resolution | 1 mm |
| Operating Temperature (Body) | −20 °C to +60 °C |
| Probe Operating Temperature | −40 °C to +80 °C |
| Humidity Limit | ≤95% RH (non-condensing) |
| Output Signals | 4–20 mA analog & RS485 digital (Modbus-RTU) |
| Power Supply | AC 220 V ±10%, 50/60 Hz or DC 24 V ±15% |
| Enclosure Rating | IP65 (body), IP67 (probe) |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | YST820CY10 |
| Price | USD 125 (FOB) |
| Measurement Range | 0.1–6 m |
| Accuracy | ±0.5% FS |
| Resolution | 1 mm |
| Operating Temperature | −20 °C to +60 °C |
| Humidity Range | ≤95% RH (non-condensing) |
| IP Rating | IP67 |
| Power Supply | DC 24 V or AC 220 V |
| Power Consumption | ≤10 W |
| Output Signals | 4–20 mA analog and/or RS485 Modbus RTU digital |
| Housing Material | ABS engineering plastic |
| Transducer Material | Polyurethane (PU) |
| Mounting Options | Adjustable bracket, threaded mount |
| Brand | YST (Dalian Yist Instruments) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Principle | Dual-beam infrared light scattering (ISO 7027 compliant) |
| Range | 0.01–20,000 mg/L (standard) |
| Resolution | 0.01–1 mg/L (scale-dependent) |
| Accuracy | ±5% of reading (subject to sludge homogeneity) |
| Repeatability | ±2% |
| Operating Temperature | 0–45 °C |
| Storage Temperature | −15–50 °C |
| Enclosure Rating | IP68 / NEMA 6P |
| Output Interface | RS485 / Modbus RTU |
| Housing Material | SUS316L stainless steel body |
| Optional Feature | Motorized brush cleaning system |
| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | YST108B-NTU680T80 |
| Price | USD 350 (FOB) |
| Turbidity Range | 0–1000 NTU |
| Sludge Concentration Range | 0–50 g/L (expandable) |
| Accuracy | ±2.5% FS |
| Light Source | 860 nm IR LED (compliant with ISO 7027) |
| Ingress Protection | IP67 |
| Power Supply | AC 220 V ±10% or DC 24 V (solar-compatible) |
| Output Signals | 4–20 mA analog + RS485 Modbus RTU |
| Operating Temperature | −10 °C to +60 °C |
| Relative Humidity | ≤95% RH (non-condensing) |
| Installation Options | Submersible or inline |
| Cable Length | Up to 50 m (remote sensor design) |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST308B-MS880T |
| Measurement Range | 0–50 g/L (expandable to 0–100 g/L) |
| Resolution | 0.01 g/L |
| Accuracy | ±1% FS |
| Sensor Operating Temperature | 0–60 °C |
| Host Operating Temperature | 0–50 °C |
| Humidity Limit | ≤90% RH (non-condensing) |
| Power Supply | AC 220 V ±10%, 50/60 Hz |
| Sensor IP Rating | IP68 |
| Host IP Rating | IP65 |
| Response Time (T90) | ≤10 s |
| Output Signals | 4–20 mA (load ≤500 Ω), RS485 |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST920CY30 |
| Measuring Range | 0–30 m |
| Accuracy | ≤0.5% FS |
| Resolution | 1 cm |
| Operating Frequency | 20–40 kHz |
| Response Time | ≤1 s |
| IP Rating | IP66 |
| Output Interfaces | RS485, 4–20 mA |
| Power Supply | 12–24 VDC or 220 VAC |
| Operating Temperature | −20 °C to +60 °C |
| Housing Material | Aluminum Alloy |
| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST183F-A50XL |
| Nominal Diameter | DN2000 mm |
| Flow Velocity Range | 0.1–15 m/s |
| Minimum Fluid Conductivity | ≥5 μS/cm |
| Accuracy Class | ±1.0% of reading |
| Lining Materials | PTFE or rubber (selectable) |
| Electrode Materials | 316L stainless steel or Hastelloy (selectable) |
| Rated Working Pressure | ≤0.6 MPa |
| Temperature Range | –20 to +60 °C (rubber lining) |
| Protection Rating | IP65 (IP68 optional) |
| Power Supply | AC 220 V / DC 24 V |
| Output Signals | 4–20 mA analog output |
| Connection | Flanged, compliant with GB/T 11988 |
| Straight Pipe Requirements | ≥5DN upstream, ≥2DN downstream |
| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST183F-A50XL |
| Pipe Size Range | DN10–DN3000 |
| Flow Velocity Range | 0.1–10 m/s |
| Accuracy | ±0.5% FS (standard), ±1.0% FS (challenging conditions) |
| Operating Pressure | PN1.0 MPa / PN1.6 MPa (customizable) |
| Medium Temperature | −20°C to +180°C (standard liner) |
| Minimum Conductivity | ≥5 µS/cm |
| Electrode Materials | 316L stainless steel, Hastelloy C, titanium |
| Liner Materials | PTFE, neoprene, polyurethane |
| Output Signals | 4–20 mA analog, RS485 (Modbus RTU) |
| Sensor Protection Rating | IP67/IP68 |
| Converter Protection Rating | IP65 |
| Power Supply | AC 220 V ±10% 50/60 Hz or DC 24 V ±10% |
| 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 Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST809B-DO660 |
| Measurement Principle | Fluorescence Quenching (Pt-porphyrin sensor) |
| Excitation Wavelength | 470 nm |
| Emission Detection | Phase-shift analysis of red fluorescence |
| Range | 0–20 mg/L (0–20,000 ppb) |
| Accuracy | ±0.2 mg/L (0–20 mg/L), ±1 ppb + 2% (ppb range) |
| Resolution | 0.01 mg/L or 1 ppb |
| Response Time (t₉₀) | ≤30 s |
| Operating Temperature | −5 to 50 °C |
| IP Rating | IP68 |
| Submersible Depth | Up to 30 m |
| Compensation | Automatic temperature, atmospheric pressure, and salinity compensation |
| Output | RS485 (Modbus RTU), 4–20 mA analog |
| Sensor Lifetime | 1–3 years (fluorescent cap) |
| Drift | <1% per year |
| Calibration | Air-saturated water auto-calibration |
| Installation Options | Immersion, flow-through, buoy-mounted |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST305SBCS1 |
| Pipe Diameter Range | DN50–DN3000 |
| Flow Velocity Range | 0.1–10 m/s |
| Medium Temperature | −20 °C to +80 °C |
| Max Working Pressure | ≤1.6 MPa |
| Output | 4–20 mA (250–750 Ω load), RS485 (Modbus RTU) |
| Power Supply | AC 220 V ±10% (50/60 Hz) or DC 24 V ±15% |
| Display | Backlit LCD showing instantaneous flow, cumulative flow, velocity, and medium temperature |
| Compliance | Suitable for fire protection water systems per NFPA 13 / ISO 6946 principles (non-intrusive installation, no pressure loss) |
| Material Compatibility | Carbon steel, stainless steel, cast iron, PVC, PE (wall thickness ≤20 mm) |
| Medium Requirements | Homogeneous, single-phase, low-viscosity liquids (e.g., potable water, fire service water) |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST305SBWS1 |
| Pipe Diameter Range | DN25–DN2000 mm |
| Flow Velocity Range | 0.01–15 m/s |
| Fluid Temperature Range | −30 °C to +70 °C |
| Sensor IP Rating | IP68 |
| Transmitter IP Rating | IP65 |
| Output | 4–20 mA analog output, RS485 with Modbus RTU protocol |
| Power Supply | 90–250 VAC / 50–60 Hz or 11–32 VDC |
| Measured Media | Homogeneous liquids including potable water, cooling water, wastewater, lubricating oil, diesel fuel |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST820CY10 |
| Measurement Range | 0.2–10 m |
| Accuracy | ±0.5% FS |
| Resolution | 1 mm |
| Operating Temperature (Body) | −20°C to +60°C |
| Operating Temperature (Transducer) | −40°C to +80°C |
| Output Signals | 4–20 mA analog, RS485 digital (Modbus RTU protocol) |
| Power Supply | AC 220 V ±10% / 50–60 Hz or DC 24 V ±15% (selectable) |
| Enclosure Rating | IP65 (body), IP67 (transducer) |
| Display | 4–6-digit LCD, unit switching between m/cm and m³/L |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST108B-NTU680T |
| Measurement Range | 0–1 to 0–5000 NTU (multi-range, auto-ranging) |
| Accuracy | ±1% FS |
| Minimum Resolution | 0.01 NTU |
| Repeatability | ≤±0.5% FS |
| Response Time | ≤10 s (to 90% of final value) |
| Operating Temperature | 0–50 °C |
| Power Supply | AC 220 V ±10% or DC 12–24 V |
| Ingress Protection | IP65 or higher |
| Output Signals | 4–20 mA analog, RS485 digital (Modbus RTU), relay alarm output |
| Brand | YST (Dalian Yisite) |
|---|---|
| Origin | Liaoning, China |
| Model | YST820CY10 |
| Measurement Principle | Dual-mode Hydrostatic + Radar |
| Range | 0.1–10 m |
| Accuracy | ±10 mm |
| IP Rating | IP68 |
| Power Supply | 7.4 V Li-ion battery, ≥12 months lifespan (10-min sampling / 1-hr transmission cycle) |
| Operating Temperature | −30 to +85 °C |
| Communication | NB-IoT / 4G LTE, compliant with HJ 212–2017 data transmission protocol |
| Housing Material | 304 stainless steel |
| Submersion Depth | Rated for continuous immersion up to 3 m |
| 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 Yistek) |
|---|---|
| Origin | Liaoning, China |
| Model | YST909B-CH980 |
| Measurement Range | 0.01–200 mg/L as Cl₂ |
| Resolution | 0.001–0.1 mg/L |
| Accuracy | ±0.15% of full scale |
| Response Time (T90) | ≤120 s |
| Operating Temperature | 0–60 °C |
| Humidity Limit | <95% RH (non-condensing) |
| Sample Temp. | 0–45 °C |
| Sample Flow Rate | ≈500 mL/min |
| Sample Pressure | 0.1–0.3 bar |
| Power Supply | AC 100–240 V / DC 18–36 V |
| Power Consumption | 12–120 W |
| Enclosure Rating | IP65 |
| Brand | YST (Dalian Yist Instrument Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Model | YST909B-CH980 |
| Measurement Principle | Electrochemical and DPD-based Spectrophotometric Methods |
| Range (Electrochemical) | 0.01–200 mg/L as Cl₂ |
| Range (Spectrophotometric) | 0.0–10.0 mg/L as Cl₂ |
| Resolution (Electrochemical) | 0.001–0.1 mg/L |
| Resolution (Spectrophotometric) | 0.01 mg/L |
| Accuracy | ±0.15% of full scale or ±0.05 mg/L (whichever is greater) |
| Response Time (T90) | ≤120 s (electrochemical), ≤2.5 min (free chlorine), ≤3.5 min (total chlorine) |
| Operating Environment | 0–60 °C, <95% RH (non-condensing), vibration-free, well-ventilated indoor space |
| Power Supply | AC 100–240 V / DC 18–36 V |
| Power Consumption | ≤120 W |
| Enclosure Rating | IP65/IP66 |
| Output Interfaces | RS-232, RS-485, 4–20 mA analog output |
| Data Storage Capacity | 14,000 records |
| Auto-calibration & Self-diagnostic Functions | Yes |
| Sampling Interval | Programmable from 1 to 999 minutes |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST208B-CR810 |
| Measuring Range | 0–10 m |
| Accuracy | ±0.5% to ±1% FS |
| Resolution | 1 mm |
| Ultrasonic Frequency | 20–200 kHz |
| Transmitter Operating Temperature | −20 °C to +70 °C |
| Sensor Operating Temperature | 0 °C to +70 °C |
| Enclosure Rating | IP65 (Transmitter), IP68 (Sensor) |
| Power Supply | AC 220 V or DC 24 V |
| Output Signals | 4–20 mA analog, RS485 digital (Modbus RTU) |
| Installation | Fixed bracket mount |
| Maintenance Interval | Quarterly |
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