FUM03 Clamp-on Ultrasonic Flow Meter
Features : Suitable for water, circulating cooling water, and some chemical liquids; DN8~D50 small pipe diameters.
Detection Principle : Transmission Time Difference
Maximum Flow Rate : 19.6 ... 589 L/min
Output : Switch / Analog / RS-485
Accuracy : ±1% F.S.
IP rating : IP65
FUM03 Clamp-on Ultrasonic Flow Meter
Features : Suitable for water, circulating cooling water, and some chemical liquids; DN8~D50 small pipe diameters.
Detection Principle : Transmission Time Difference
Maximum Flow Rate : 19.6 ... 589 L/min
Output : Switch / Analog / RS-485
Accuracy : ±1% F.S.
IP rating : IP65
● Suitable for all kinds of liquids
● Suitable for all kinds of pipes, measuring range ( DN08 ~ DN50 )
● No need to cut the pipe for installation and used without downtime
● Quick installation, set the pipe diameter to complete the installation and measurement
● No contact with liquid, not afraid of dirt and corrosion, zero pressure loss
Applicable Pipe Size | |
Metric Units | DN8 (1/4") ... DN50 (2") |
Pipe Material | |
| Stainless steel, Carbon steel, Copper pipe, Aluminum pipe, PVDF, CPVC, PVC, PPR, PPH, PFA, HDPE | |
Fluid Temperature | |
| 0°C ... 85°C (Pipe surface must not be frozen) | |
Maximum Flow Rate | |
| 19.6 ... 589 L/min | |
Zero Cut-Off Flow Rate | |
| 0.3 ... 6 L/min | |
Detection Principle | |
| Transmission Time Difference | |
Display | |
| TFT2.0" | |
Display Refresh Cycle | |
| 4times/sec | |
Resolution | |
Instantaneous Flow | 0.01, 0.1, 1 L/min |
Totalized Flow | 0.01, 0.1, 1 L (up to 8 digits) |
Response Time | |
| 0.5s, 1.0s, 2.5s, 5.0s, 10.0s | |
Measurement Accuracy | |
At 10% to 100% of F.S. | ±2% of F.S. Note 1, 2, 3 |
At 0% to 10% of F.S. | ±1% of F.S. Note 1, 2, 3 |
Repeatability F.S. | |
| ±0.8% Note 2, 4 | |
Flow Unit | |
| L/min, m³/h | |
Pulse Output Unit | |
| 0.1 ... 999.99 L | |
Data Retention Time | |
| Approx. 1 year | |
Power I/O Connector | |
| M12 8pin connector | |
Output | |
Switch Output | Instant / Window / Pulse / Accumulated / Error / No Signal / NPN / PNP switchable open collector output : ≤ 26.4 VDC, ≤ 80 mA/ch, residual voltage ≤ 2.5 V |
Analog Output | 1 ... 5 V / 0 ... 10 V (switchable) Load resistance : 50kΩ 4 ... 20 mA / 0 ... 20 mA (switchable) Load resistance : ≤300 Ω Note 5 |
Communication Interface | RS-485 |
Relay Output | Relay output : ≤ 27VDC, max 250 mA, freq. <2Hz |
Power Supply | |
Supply Voltage | DC24V±10% Note 6 |
Current Consumption | ≤200 mA Note 7 |
Protective Circuit | |
| Power reverse protection, surge protection, output short-circuit protection Note 8 | |
Environmental Resistance | |
Enclosure Protection Rating | IP65 |
Operating Temperature | － 20°C ... +60°C (no freezing) |
Operating Humidity | 35% ... 85%RH (non-condensing) |
Vibration Resistance | 10Hz to 500 Hz power spectral density : 0.816 G²/Hz (X, Y, Z directions) |
Menu Language | |
| Traditional Chinese, English | |
Calendar Battery | |
| CR1220 | |
Applicable Medium | |
| Water, solution, chemical reagents (impurities ≤ 4%) | |
Applicable Viscosity | |
| <300CST (mm²/s) | |
Weight | |
| DN8 / DN10 : 316 g , DN15 / DN20 : 309 g, DN25 / DN32 : 392 g , DN40 / DN50 : 503 g | |
Note :
1. The ultrasonic-measured liquid must not contain large amounts of bubbles. Measurement may become unstable depending on pipe material and conditions.
2. Errors may occur due to the type of piping, condition, fluid type, and fluid temperature used by the customer.
3. Zero-point adjustment was performed in a controlled environment at 25° C, considering linearity error.
4. The definition assumes a stable velocity distribution. It does not account for pulsations or variations caused by equipment. The stated F.S. (Full Scale) should be interpreted using the rated flow range.
5. The output impedance of the analog voltage type is approximately 1 kΩ. If the load impedance is low, the output value may differ significantly. Please verify and account for load impedance error before use.
6. DC24V connection current varies depending on whether a load is connected. Consumption current may also vary. Please take special care.
7. Load current must be below 200 mA. (Excluding expansion module)
8. The built-in protection circuit only covers specific error conditions and load short circuits. It does not guarantee protection against all wiring errors.
Process Precision Control and Leak Detection / Water Resources and Wastewater Treatment / HVAC Cooling / Tower Systems and Energy Management / Industrial Process Monitoring and Control / Beverage Canning / Machines / Machine Tool Coolant Management / Drainage Management and Detection Systems