Measurement Instruments
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| 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 |
|---|---|
| Origin | Liaoning, China |
| Model | YST305D80BF223 |
| Measurement Principle | Transit-Time Ultrasonic Method |
| Accuracy | ±1% of reading |
| Repeatability | <0.5% |
| Flow Velocity Range | 0 to ±10 m/s |
| Volumetric Flow Range (Water) | 5–500 m³/h |
| Turndown Ratio | 1:200 |
| Pipe Diameter Compatibility | DN15–DN3000 |
| Acceptable Pipe Materials | Steel, stainless steel, cast iron, PVC (with or without lining) |
| Fluid Compatibility | Single-phase, acoustically conductive liquids (e.g., potable water, seawater) |
| Fluid Temperature Range | −30 °C to +160 °C |
| Fluid Turbidity Limit | ≤10,000 ppm |
| Air Bubble Tolerance | Low |
| Operating Ambient Temperature (Transmitter) | −20 °C to +60 °C |
| Humidity Limit | ≤85% RH |
| Sensor Immersion Rating | IP68, submersible up to 2 m depth |
| Output Signals | 4–20 mA (load ≤1 kΩ, accuracy 0.1%), OCT pulse output |
| Communication | RS485, Modbus RTU protocol |
| Power Supply | DC 8–36 V |
| Power Consumption | 1.5 W |
| Data Retention | Non-volatile memory with battery backup |
| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST305D150BF223 |
| Nominal Diameter | DN150 (150 mm) |
| Pressure Rating | PN 1.0 / 1.6 MPa (customizable to 2.5 MPa) |
| Accuracy Class | Class 2 (Q₃ ≤ Q ≤ Q₄), Class 3 (Q₁ ≤ Q < Q₃) |
| Turndown Ratio | 1:100 (Q₁ = 0.03 m³/h, Q₄ = 3 m³/h) or 1:200 (Q₁ = 0.015 m³/h, Q₄ = 3 m³/h) |
| Flow Velocity Range | 0.01–3 m/s |
| Operating Temperature | Cold water type: −20°C to +50°C |
| Hot water type | 0°C to +90°C (customizable higher) |
| Ambient Humidity | ≤95% RH (non-condensing) |
| Outdoor version | ≤90% RH (short-term rain resistance) |
| Power Supply | Standard 3.6 V Li-SOCl₂ battery (2.4 Ah) |
| Communication | Standard RS485 (Modbus-RTU) |
| Enclosure Rating | Body IP65 |
| Brand | YST |
|---|---|
| Origin | Liaoning, China |
| Model | YST305D20BF223 |
| Nominal Diameter | DN200 mm |
| Flow Range | 22–1100 m³/h (0.1–10.0 m/s) |
| Accuracy | ±0.5% FS |
| Repeatability | ≤0.1% FS |
| Operating Temperature | −25 °C to +60 °C |
| Max Working Pressure | ≤1.6 MPa |
| Pipe Material Compatibility | Carbon Steel, Stainless Steel, PVC |
| Output Signals | 4–20 mA analog, RS485 Modbus RTU |
| Enclosure Rating | IP65 |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST305D40YF013 |
| Flow Principle | Transit-Time Ultrasonic (Single-Path) |
| Flow Range | 0 to ±12 m/s |
| Accuracy | ±0.5% of reading (±0.01–12 m/s) |
| Repeatability | 0.15% |
| Pipe Diameter Range | 200–5000 mm |
| Analog Output | 4–20 mA (750 Ω load) |
| Pulse Output | 0–9999 Hz (adjustable) |
| Relay Output | SPST, max 1 Hz |
| Communication | RS485, Modbus RTU protocol |
| Power Supply | 24 VDC |
| Operating Temperature | Host: −40 to +60 °C |
| Sensor | −40 to +80 °C |
| Relative Humidity | ≤95%, non-condensing |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST305SBCS1 |
| Measuring Medium | Water, seawater, diesel, gasoline, lubricating oil, and single-phase chemical solutions |
| Pipe Diameter Range | DN50–DN6000 mm |
| Flow Velocity Range | 0.1–15 m/s |
| Accuracy | ±1.0% (under standard conditions) |
| Repeatability | ≤0.2% |
| Operating Temperature | Host: −20°C to +60°C |
| Probe | −40°C to +160°C |
| Max Working Pressure | ≤2.5 MPa |
| Protection Rating | IP65 (host), IP68 (probe) |
| Output Signals | 4–20 mA analog, RS485 (Modbus RTU), pulse output |
| Power Supply | AC 220 V ±10% (50/60 Hz) or DC 24 V ±10% |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST305TBCS1 |
| Pipe Diameter Range | DN10–DN6000 mm |
| Flow Velocity Range | 0 to ±30 m/s |
| Accuracy | ±1% (at flow velocity ≥2 m/s) |
| Medium Temperature | −40 °C to +150 °C |
| Sensor IP Rating | IP68 |
| Output Signals | 2× 4–20 mA, 1× pulse, optional RS485 (Modbus RTU) |
| Power Supply | 90–240 VAC or 18–36 VDC |
| Display | Backlit QVGA LCD showing instantaneous & cumulative flow |
| 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 |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Domestic Production Status | PRC-sourced |
| Model | YT0613 |
| Pricing | Available Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Distributor |
| Domestic Product Classification | Yes |
| Model | YT2002 |
| Pricing | Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Distributor |
| Domestic/Import Status | Domestic |
| Model | YT308 |
| Pricing | Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Distributor |
| Domestic Product Category | Yes |
| Model | YT316 |
| Pricing | Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Regional Classification | China-sourced Instrument |
| Model | YT520 |
| Pricing | Available Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Domestic Production Classification | Yes |
| Model | YT715 |
| Pricing | Available Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Domestic Origin Classification | China-sourced (Taiwan) |
| Model | YT810 |
| Pricing | Available Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Domestic Production Status | China-sourced |
| Model | YT820 |
| Pricing | Available Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Distributor |
| Domestic Product Classification | Yes |
| Model | YT9311 |
| Pricing | Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Regional Classification | China-sourced |
| Model | YT9402 |
| Pricing | Available Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Regional Classification | China-sourced |
| Model | YT9511 |
| Pricing | Available Upon Request |
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Domestic Origin Classification | China-sourced (Taiwan) |
| Model | YT953 |
| Pricing | Available Upon Request |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | RT-200 |
| Price Range | USD 560 – 920 |
| Measurement Principle | Inductive Contact Profilometry (Stylus-Based) |
| Display | 128×64 OLED Dot-Matrix |
| Battery | Rechargeable Li-ion, >20 h Continuous Operation |
| Data Storage | 100 Sets (Raw Profile + Parameters) |
| Compliance | ISO 4287, ISO 4288, DIN EN ISO 3274, ANSI B46.1, JIS B 0601, JIS B 0611 |
| Measured Parameters | Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, RzJIS, Rsk, Rku, Rsm, Rmr |
| Sampling Length | 0.25 mm / 0.8 mm / 2.5 mm (Auto-selectable per standard) |
| Cutoff Wavelength | λc = 0.25 / 0.8 / 2.5 mm |
| Vertical Resolution | 0.01 µm |
| Traverse Speed | 0.5 mm/s (standard), 0.1–1.0 mm/s adjustable |
| Stylus Tip Radius | 5 µm (diamond, 90° included angle) |
| Force | 4 mN (standard), 0.75–15 mN programmable |
| Interface | USB 2.0 (for PC communication & firmware update) |
| Optional Accessory | Thermal Printer Module |