1.2 Important concepts

● This product uses the principle of time differentials in ultrasonic transmission through fluids to determine flow rate.

● Correctness of installation is the most important factor in determining the accuracy and stability of the ultrasonic flowmeter. Incorrect or unstable installation or configurations may cause measurement errors or even loss of measuring capability. Be sure to install and operate the flowmeter correctly.

● Please pay attention to the status of the power supply. This product uses 9 ~ 30 volts DC; it is recommended that the supply current be greater than 1 amp. Avoid sharing power supply with devices that may cause interference (inverters, motors, etc.) as much as possible to avoid measuring errors caused by the interference of ultrasonic receiving signals.

● Before using, all the values ​​of the initial setup in the input interface must be correctly set to operate. During normal operation, the light on the instrument panel will display green. If an error occurs, the light will display red. This signal can be used to determine whether the installation and settings are correct.

● The input parameters will not automatically save when they are set. If power is lost, the data will be lost. Be sure to execute the Save function to save data.

● After set-up is completed, before starting measurement, if possible, please perform zero calibration (Set Zero), due to differences in the physical characteristics of the probe, the electronic components of the error ... and many other reasons, will cause the upstream and downstream alternating signals slightly different, resulting in a time difference, it is necessary to execute a zero point correction routine to eliminate this time difference when the fluid is at rest.