Product Appearance, Specifications, and Model
Appearance
Exploded View
Models & Dimensions
FU-LT008
DN08
105
64.1
49.2
40.44
36
14
FU-LT010
DN10
105
67.73
57.73
40.44
40.5
19
FU-LT015
DN15
105
71.13
61.13
50.9
45
23
FU-LT020
DN20
105
77.63
67.63
50.9
51.5
29
FU-LT025
DN25
105
84.96
74.96
61.12
58
35
Mechanical Specifications
Installation Method
Clamp-On
Maximum Pipe Wall Operating Temperature
Recommended ≤ 60 °C
Recommended ≤ 60 °C
-10~60°C (14~140°F)
(As fluid temperature increases, the allowable ambient temperature of the main unit must be reduced accordingly.)
Power Supply Requirement
DC 24V 200mA
Response Time
0.5 s (2 Hz) 1 s (1 Hz)
Ingress Protection
IP66**
2. Measurement Specifications
Applicable Fluids
Liquids with no or minimal solids and air bubbles
Linearity
± 0.5 % FS (>0.3m/s)
Repeatability
± 0.4 %
Accuracy
10% 至 100% of F.S. 時 ±3.0% OR
0% 至 10% of F.S. 時 ± 0.3% FS*
Measurement Principle
Ultrasonic Time of Flight（Time of Flight, ToF）
Instantaneous Data
Flow rate, flow velocity
Totalized Data
Total flow (selectable: positive, negative, or net flow)
Ingress Protection
IP66**
* Accuracy Notice Accuracy is calibrated under controlled conditions using clean water at ambient temperature with CNS UPVC pipes. Actual performance may vary due to fluid properties, pipe conditions, installation, and environmental factors.
** IP66 Rating IP66 indicates complete protection against dust and resistance to high-pressure water jets.
3. Electrical Specifications
Power Supply
DC 24V, 200 mA
(Excluding 4–20 mA and RS485 current)
Reverse Polarity Protection
Yes
4. NPN Output
Power Supply
DC 24V 200mA
Reverse Polarity Protection
Yes
Wiring
NPN supported (PNP not supported)
5. Analog Current Output (4–20 mA)
Wiring
3-wire configuration
Power Supply
Shared with the main unit; no separate power required
Output Range
2.4 ~ 21.6 mA
Response Time
1 second
(matches display update rate)
Loop Resistance
600 ohm @ 24V
6. Digital Communication: Modbus RTU (RS-485)
Baud Rate
9600, 19200, 38400, 57600
Wiring
2-wire
Maximum Nodes per Network
256
User Interface
Languages
English, Traditional Chinese, Simplified Chinese
Units
Flow: L, ft³, Imp gal, US gal, m³ Time: Minute, Second, Hour, Day Velocity: m/s, ft/s
Display
Single-screen 3-color backlit LCD, 3 lines × 16 characters (English) Line 1: Current parameter and unit Line 2: Measurement data Line 3: Key definitions (see Human-Machine Interface section)
Digits
10 digits plus sign and decimal point
Operation Keys
4-touch keys
Wired Communication
Analog Output: Powered 4–20 mA Modbus RTU: RS-485, 2-wire NPN Output (Includes 2 m signal cable, 6-core, non-isolated)
Shipping Contents
Unless otherwise specified in the order, standard shipment includes:
FU-LT Main Unit × 1 (with upper and lower clamps)
Protective Cover for Main Unit × 1
2 m 6-pin Connection Cable × 1 (non-M12 connector)
Quick Installation Guide × 1
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