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Installation

1. Site Selection​

  • Choose a location that ensures optimal performance.
  • Consider factors such as pipe material, diameter, and ambient conditions.

2. Mounting Instructions​

Selecting Mounting Location​

  • Choose a location that accurately represents the flow conditions and where the ultrasonic meter can operate effectively.
  • Avoid areas with excessive vibrations, temperature extremes, or distorted flow profiles.

Mounting Orientation​

  • Mount the meter in a horizontal or vertical position.
  • Ensure that the flow direction aligns with the arrow on the meter housing.

Pipe Size and Material​

  • Confirm that the selected pipe size matches the specifications of the ultrasonic meter:
    20 mm, 25 mm, 32 mm, 50 mm, 80 mm and 100 mm.

Pipe Straight Run Requirements​

  • Provide sufficient straight pipe runs before and after the meter to allow proper flow profile development.

Mounting Surface​

  • Choose a stable and flat surface for mounting to prevent misalignment.

Secure Mounting​

  • Securely mount the ultrasonic meter to minimize movement or vibrations that could affect accuracy.

Electrical Connections​

  • Connect the electrical wiring according to the manufacturer’s specifications.
  • Ensure proper grounding to prevent electrical interference.

3. Electrical Connections​

Power Supply Connection​

  • Identify the power supply requirements specified by the manufacturer:
    • Voltage: 12V
    • Current: 30mA
  • Connect the power supply leads to the corresponding terminals on the ultrasonic meter.
  • Ensure proper polarity and grounding as per the manufacturer’s instructions.

Communication Wiring​

  • Identify the communication terminals on the ultrasonic meter (e.g., Modbus RS-485).
  • Use shielded twisted-pair cables for Modbus communication.
  • Connect one end of the cable to the meter’s communication terminals and the other to the Modbus network (or gateway device).
  • Follow wiring conventions (A, B, VCC, GND) for RS-485 and install termination resistors if required.

Termination Resistors (if applicable)​

  • Check the manufacturer’s guidelines to determine if termination resistors are required.
  • If needed, install them at the beginning and end of the Modbus network.

Communication Settings​

  • Configure the Modbus communication parameters, such as:
    • Baud rate
    • Data bits
    • Stop bits
    • Parity
  • Ensure that these settings match the Modbus master device.

Power On and Check​

  • Power on the ultrasonic meter and check for error indicators or communication issues.
  • Verify that the meter is communicating properly with the Modbus network and that data transmission is stable.

4. Transducer Positioning​

  • Ensure correct positioning of transducers in the ‘K’-shaped transducer tube to maintain measurement accuracy.