Product Overview
The SX-FVMB series is a compact vortex flow sensor that monitors non-corrosive waterbased fluid flow. It detects two process values: volume flow rate and medium temperature.Standard outputs include RS485, 0–5 V, 4–20 mA, and IO-Link / NPN / PNP. The LCD display features English menus and supports 90° free rotation in any direction. Response time is less than 10 ms. The sensor also provides excellent vibration resistance and EMI immunity
Typical Measurements
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Volume flow rate
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Medium temperature
Main Features
- Water-Based Fluid Measurement —— Monitors non-corrosive water-based liquids
- Two Process Variables —— Simultaneously detects volume flow rate and medium temperature
- Multiple Output Options —— Standard: RS485, 0–5 V, 4–20 mA, IO-Link / NPN / PNP
- LCD Display —— English-menu LCD with 90° free rotation
- Fast Response —— Response time less than 10 ms
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Strong Vibration & EMI Resistance —— Excellent anti-vibration and anti-EMI performance
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Six Pipe Sizes —— DN8, DN10, DN15, DN20, DN25, DN32
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Compact Integral Design —— Sensor and transmitter in one body
Product Application
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Liquid Cooling Systems
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HVAC & Building Services
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Factory Automation
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Semiconductor Manufacturing
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Heat pump
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General Industrial Process
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Technical Data
| Measurement | |
| Example Model | SX-FVMB-2028AK0XH244K48XF15 |
| Measurement Principle | Vortex |
| Measured Variables | Volume flow rate; medium temperature |
| Measurable Media | Water-based fluids (non-corrosive) |
| Pipe Size Range | DN8–DN32 |
| Flow Range | 0.09–14.4 m³/h / 1.5–240 L/min, depending on pipe size |
| Accuracy | ±2% (Water) |
| Response Time | <10 ms |
| Flow Units | m³/h / t/h / L/h / L/min / mL/min |
| Process Conditions | |
| Medium Temperature | −10°C to +95°C (+14°F to +203°F) |
| Maximum Working Pressure | 1.0 MPa (145 psi), PN10 |
| Pressure Rating Options | PN6 (0.6 MPa / 87 psi) / PN10 (1.0 MPa / 145 psi) |
| Electrical Data | |
| Power Supply | 24 VDC (10.8–30 VDC) |
| Flow Output | 4–20 mA / 0–5 V / RS485 Modbus RTU / IO-Link / NPN / PNP |
| Pulse Output | Included with all flow output variants |
| Temperature Output | 4–20 mA / 0–5 V / Without |
| Electrical Connection | M12 × 1 connector with 2 m cable |
| Direct Cable Exit | 2 m cable, DN8 only |
| Environmental Conditions | |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | 0°C to +60°C |
| Relative Humidity | 5–95% RH |
| Storage Atmospheric Pressure | 86–106 kPa |
| Ingress Protection | IP65 |
| Vibration Resistance | Excellent anti-vibration performance |
| EMI Immunity | Excellent electromagnetic interference immunity |
| Process Connection & Materials | |
| Flange Standard | EN 1092-1 / ASME B16.5 |
| Thread Types | G / NPT / RC / PT, male or female |
| Special Connection | Union / Sanitary clamp (Tri-clamp) |
| Probe Material | ETFE |
| Wetted Material | PPS |
| Connection Material | 304 SS / 316 SS / 316L SS / PPH |
| Seal Material | NBR / PTFE / FKM (Viton) / Without seal |
| Housing Material | PPS |
| Display | |
| Display Type | LCD, English menu |
| Display Orientation | 90° free rotation in any direction |
| Communication | |
| Interface | RS-485, 2-wire bus |
| Protocol | Modbus RTU |
| Default Node ID | 10 |
| Baud Rate | 9600 bps |
| Data Bits | 8 |
| Stop Bits | 1 |
Certifications & Compliance
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