1Dalian portable ultrasonic flowmeterTechnical features:

1. Measurement accuracy: better than 1%;

2. Repeatability: better than 0.2%;

3. Working power supply: 220VAC (standard), 110VAC (optional);

4. Measurement cycle: 500ms (2 times per second, 128 sets of data collected per cycle);

5. Battery: Built in nickel hydrogen rechargeable battery can work continuously for 24 hours;

6. Installation method: external installation;

7. Display: 2 * 10 man backlit display (instantaneous flow, cumulative flow, signal status, etc.);

8. Signal output: isolated RS485;

9. Communication protocols: MODBUS protocol, FUJI extension protocol, compatible with communication protocols of similar products from other domestic manufacturers;

10. Print output: Built in thermal integrated printer for real-time or timed printing; (Only one of the data storage and printing functions can be selected);

11. Other functions: self diagnosis, prompting whether the current working status is normal;

12. Optional sensors: external application type, plug and unplug interface.

IIDalian portable ultrasonic flowmeterInstallation method of external sensor:
There are 5 models of external sensors to choose from:

Installation distance:

The installation spacing of external sensors is based on the distance between the inner edges of the two sensors (see installation diagram). The calculation method for spacing is to first enter the required parameters in the menu, check the number displayed on M25, and install the sensors according to this data.

Installation method:

There are four installation methods for external sensors. They are V method, Z method, N method, and W method respectively.

For pipelines below DN200, the V method should be preferred when there is no signal or when the signal quality is poor. For pipelines above DN200 or cast iron pipes, the Z method should be preferred. The N method and W method are less commonly used and are usually suitable for the installation of fine pipelines below DN50.