FUM03 Clamp-on Ultrasonic Flow Meter
Model :
FUM03
Features : Suitable for water, circulating cooling water, and some chemical liquids; DN8–DN40 small pipe diameters.
Detection Principle : Transmission Time Difference
Maximum Flow Rate : 19.6 ... 376.8 L/min
Output : Switch / Analog / RS-485
Accuracy : ±1% F.S.
IP rating : IP65/IP67
Detection Principle : Transmission Time Difference
Maximum Flow Rate : 19.6 ... 376.8 L/min
Output : Switch / Analog / RS-485
Accuracy : ±1% F.S.
IP rating : IP65/IP67
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Features● Suitable for all kinds of liquids
● Suitable for all kinds of pipes, measuring range ( DN08 ~ DN40 )
● 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 -
ApplicationsProcess 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
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Specification
Applicable Pipe Size
Metric Units
DN8 (1/4") ... DN40 (1 1/2")
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 ... 376.8 L/min
Zero Cut-Off Flow Rate
0.3 ... 1.0 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 : ≤ 30VDC, max 1A, 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/IP67
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 : 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.
Note : Design and specifications are subject to change without notice.
Note : If the product has RS-485 function, to avoid damaging product, please make sure the product and the device which connect with RS-485 are on common ground.