TDS Clamp-on Ultrasonic Flow Meter
TDS Clamp-on Ultrasonic Flow Meter
TDS Clamp-on Ultrasonic Flow Meter, transit-time measurement, clamp-on probe installation without pipe cutting or water shutdown, suitable for non-contact flow measurement of water, wastewater, chemical liquids, etc.
- Clamp-on installation, no pipe cutting or water shutdown, no contact with medium, no moving parts, no pressure loss
- Transit-time measurement, digital correlation + adaptive acoustic technology, stable and drift-free
- Measurement accuracy ±1%, wide range, suitable for large diameters and online metering
- Fixed/portable handheld optional, probes support clamp-on, insertion, spool piece
- Multiple outputs and MODBUS communication, can be equipped with energy (heat) metering
- Wide voltage and temperature power supply, adaptable to harsh industrial environments
Overview
Product Overview
The TDS series ultrasonic flow meter is a general-purpose, economical, clamp-on transit-time ultrasonic flow meter with simple installation, enabling pipe flow measurement without cutting pipes or stopping water. It employs digital correlation and adaptive acoustic technology for stable measurement; acoustic focusing technology enhances signal reception quality during continuous measurement. Non-contact measurement, no moving parts, unaffected by system pressure and harsh environments.
Measurement Principle
When an ultrasonic beam propagates in a liquid, its propagation time varies with the liquid flow velocity. At zero flow, the transit times in both directions are equal; when liquid flows, the upstream transit time is greater than the downstream. By measuring the transit time difference ΔT = Tup − Tdown, the flow rate proportional to flow velocity can be derived.
Structure and Type
Available in fixed and portable/handheld display units; probe options include clamp-on, insertion, and spool piece types; supports RS485, 4–20mA, OCT pulse, and other outputs, and can be equipped with energy (heat) metering function.
Specifications
| Measurement Principle | Transit-time Method |
| Measurement Accuracy | ±1% |
| Sensor Type | Clamp-on / Insertion / Spool-piece |
| Applicable Media | Water, pure water, seawater, wastewater, chemical liquids, fuel oil, etc. |
| Medium Temperature | Standard sensor ≤110°C (high-temperature type optional) |
| Power Supply | 8–36 VDC or 85–265 VAC |
| Power Consumption | ≤50 mA (typical) |
| Output Signal | RS485, 4–20 mA / 0–20 mA (active/passive), dual OCT pulse |
| Analog Input | 3 channels 4–20 mA (optional) |
| Display | 2×10 Chinese/English backlit |
| Communication Protocol | MODBUS / RS485 |
| Installation Method | Non-pipe-breaking installation, no need to stop water flow |