YST (Dalian Yisite)
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| Brand | YST (Dalian Yisite) |
|---|---|
| Origin | Liaoning, China |
| Model | YST109B-HP880 |
| Measurement Range | pH 0–14, ORP −2000 to +2000 mV |
| Accuracy | ±0.02 pH (high-precision mode), ±0.1 pH (standard mode) |
| Temperature Compensation | 0–99.9 °C (reference 25 °C) |
| Output Signals | 4–20 mA (2-wire), RS485 (Modbus RTU) |
| Power Supply | 24 VDC (wide-range input), solar-compatible |
| Media Compatibility | Aqueous solutions, weakly corrosive liquids (pH 2–12), suspensions |
| Drift Stability | ±0.02 pH/24 h |
| Enclosure Rating | IP65 to IP67 |
| Response Time | <30 s (standard), <5 s (fast-response configuration) |
| Data Logging | 30-day local storage |
| Auto-Calibration | Supported |
| 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 Yisite) |
|---|---|
| Origin | Liaoning, China |
| Model | YST820CY10 |
| Measurement Range | 0.3–10 m (customizable up to 20 m) |
| Accuracy | ±0.5% FS |
| Resolution | 0.1 mm |
| Blind Zone | ≤0.3 m |
| Output Signals | 4–20 mA (2-wire/3-wire/4-wire configurable), RS485 Modbus RTU |
| Power Supply | DC 24 V (standard), AC 220 V (optional) |
| Enclosure Rating | IP67 (IP68 optional) |
| Operating Temperature | −20 °C to +60 °C (wide-temp version available) |
| Display | Backlit LCD (level/distance dual-mode) |
| Brand | YST (Dalian Yisite) |
|---|---|
| Origin | Liaoning, China |
| Model | YST909B-CH980 |
| Measurement Range | 0–1 mg/L / 0–5 mg/L / 0–10 mg/L (selectable) |
| Resolution | 0.001 mg/L (low range), 0.01 mg/L (mid/high range) |
| Repeatability | ≤1% |
| Response Time (T90) | ≤60 s |
| Operating Temperature | 0–50°C (indoor), –10–60°C (outdoor explosion-proof version) |
| Humidity | ≤90% RH (non-condensing) |
| Sample Temp. | 0–50°C |
| Sample Pressure | 0.1–0.6 MPa |
| Output | 4–20 mA analog, RS485/RS232 (Modbus RTU) |
| Relay Outputs | 2 configurable (NO/NC, 220 VAC/5 A) |
| Power Supply | AC 220 V ±10%, 50 Hz or DC 24 V |
| Sampling Modes | Flow-through (50–300 mL/min) and Immersion |
| Auto-Cleaning | Yes |
| Compliance | Designed for ISO 9001-manufactured systems |
| 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 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 |