Product Appearance, Specifications, and Model

Exterior

Models & Dimensions

Device Housing Size

TM-1 Tansducer Size

PT-100 Temperature Sensor Size

Product Specifications

1. Mechanical Specifications

Installation method	Clamp-On
Applicable pipe material	Metal pipe, Plastic pipe (UPVC/PPH/PVDF/PFA/PTFE)
Applicable pipe size	2”～16” (DN 50 ~ 400)
Pipe wall working temperature	Standard: 0 ~ 80°C | High-temp: 0 ~ 150°C
Device working environment temperature	-10~60°C (14~140°F) (The higher the temperature of the fluid in the pipe, the lower the upper limit of the ambient temperature.)
Power requirement	DC 24V 200mA
Transducer cable length	10 m (Waterproof / M12 connector)
Response time	≤0.5 to 1 s

2. Measurement Specifications

Measurement Principle	Ultrasonic Time of Flight（Time of Flight, ToF）
Applicable fluid	Clear, oil or chemicals with less impurities (<1%)
Flow Velocity Range**	Recommended: ±0.3 to 6.0 m/s, Measurable: ±0.1 to 8.0 m/s
Linearity	± 0.5 % FS (>0.3m/s)
Repeatbility	± 0.4 %
OR tolerance	±3.0% RD (10%-100% F.S.) ±0.3% F.S. (0%-10% F.S.)**
Measurement range	0.5 ~ 8 m/s
Instantaneous data	Instantaneous flow volume and flow velocity
Cumulative data	Cumulative flow (optional positive, negative or net flow)
Temperature Measurement	3-wire PT100
Temperature rating	-20 ~ 150°C
Waterproof rating*	Wall-mount host: IP67 | Probe: IP61 (Standard) / IP68 (optional)

* IP66 Rating IP66 stands for Ingress Protection 66. The IP rating is a standard that classifies the degree of protection provided by an electrical enclosure against the intrusion of foreign objects. The format is IPXX, where XX represents two digits: the first digit indicates the level of protection against contact and solid foreign objects (dust protection), and the second digit indicates the level of protection against water ingress. A higher number indicates a higher level of protection. For IP66: the first 6 means complete protection against dust ingress; the second 6 means protection against powerful water jets without harmful effect.

** Measurement accuracy is calibrated under controlled laboratory conditions using clean water at room temperature with CNS UPVC piping. Actual results may vary depending on fluid properties, piping conditions, installation, and environmental factors.

3. Electrical Specifications

• Power supply

  Whole device power supply
  Working specification	24V 200mA (4-20mA and RS485 current are not included.)
  Reverse voltage protection	Yes

• OCT output

  Power supply spec	5V~30V 200mA
  Reverse voltage protection	Yes
  NPN connection	Yes
  PNP connection	Yes
  Maximum output frequency	700Hz
  Overcurrent protection	200mA

• Analog output (4-20mA, 0-20mA)

  Wiring	3 wiring
  Power supply	Device shares power with the main unit, no external power supply required.
  Output range	0–20 mA or 4–20 mA (selectable)
  Maximum output range (incl. error signal)	0~21.6 mA (0–20 mA mode) / 2.4~21.6 mA (4–20 mA mode)
  Resolution	16-bit (0–24 mA physical range)
  Response time	≤0.5 to 1s (matches display update rate)
  Max Loop Resistance	600 ohm @ 24V

• Digital communication Modbus RTU RS485

  Baud	9600, 19200, 38400, 57600
  Wiring	2 wiring
  Nodes on the bus	32

4. User Interface

Language	English, Traditional Chinese, Simplified Chinese (Others customizable)
Unit	Metric: Liter, cubic meters, meters Imperial: foot, Cubic foot, Uk gallon, US gallon Time: second, minute, hour, day
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)
Display digits	10 digits (plus sign and decimal point)
Operation buttons	4 Key touch buttons
Wired communication	Self-powered Analog output 4-20mA (Device after HW1.3) Modbus RTU RS485 Two-line OCT switch signal (ship with 2 meter cable)

Shipping Contents

Besides other agreed contents, our standard package contains:

• FU-TX320 Display Unit * 1

• TM-1 transducer pair, pre-wired with IP61 waterproof connector cable* 1

• 2 m, 8-pin power & communication cable with flying leads (S) * 1

• Quick starting manual * 1

Also available as upgrade / add-ons:

• AC power adapter (upgrade from standard DC) — Global AC to 24 VDC adapter, universal input

• IP68 waterproof transducer cable (upgrade from standard IP61)

• M12 connector transducer cable — IP61 or IP68 (upgrade from standard waterproof connector)

• PT100 temperature sensor, stainless steel tube-type — 3 m or 10 m (add-on; standard is none)

• PT100 temperature sensor, patch-type — 3 m or 10 m (add-on; standard is none)

• DIN rail backplate module (upgrade from standard screw-mount) — DIN rail itself not included

• 2 m, 8-pin cable + 110 VAC 60Hz to 24 VDC transformer (upgrade from standard flying-leads-only cable)