Installation of flow meters| electromagnetic water flow meter

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1. Detailed explanation of the usage method of AKR-C ultrasonic heat meter

The core of the usage method of AKR-C ultrasonic heat meter is to correctly install, understand the display operation logic, and perform regular maintenance. The installation must strictly ensure the cleanliness of the pipeline and the length of the straight pipe section. The operation can be queried through a single button cycle, and the maintenance cycle is usually 6 years. 1. Installation method: Heat meter body installation - Before installation, the pipeline needs to be thoroughly cleaned to remove welding slag, rust, and other debris to prevent blockage of the flow meter. -The flowmeter can be installed horizontally or vertically, and its display window can be rotated and adjusted for easy reading. -It is necessary to ensure that the direction of water flow in the pipeline is consistent with the arrow markings on the table body. -A straight pipe section of 10 times the nominal diameter (10DN) must be left in front of the meter, and an 8DN straight pipe section must be left behind to ensure measurement accuracy. -The diameter of the pipeline before and after the flowmeter needs to match. -Filters and shut-off valves should be installed at the front end of the flowmeter for easy drainage and maintenance. -After installation, place lead seals between the inlet connecting nut and the heat meter, as well as between the temperature measuring ball valve and the platinum resistor, to prevent unauthorized disassembly. Temperature Sensor Installation - At the factory, Xiaonai and the red labeled temperature sensor have been installed at the outlet of the flow meter to measure the water supply temperature. The temperature sensor with a blue

label needs to be installed on a dedicated temperature measuring ball valve or temperature measuring tee in the return water pipeline to measure the return water temperature. -The wire length of the temperature sensor cannot be changed arbitrarily. If any changes are needed, the manufacturer must be contacted, otherwise it will cause measurement errors. 2. Operation and display: All parameter queries are completed through a single button on the body. -Every time you lightly press the button, the display screen content switches in order: cumulative heat → inlet temperature → outlet temperature → temperature difference → instantaneous flow rate → cumulative flow rate only cautious laugh → cumulative heat, and so on. -Press and hold the button for 5 seconds to automatically enter the calibration state. First, it displays "flow calibration", then lightly press it again to switch to "heat calibration", and lightly press it for the third time to exit. The verification status will automatically exit after 30 minutes. 3. Daily maintenance - After installation, it is necessary to regularly check the operating condition and battery voltage to identify hidden faults. -If it is found that the system flow has significantly decreased, affecting the heating effect, the front-end filter should be promptly treated for sewage discharge. -The battery replacement cycle of the heat meter is 6 years (i.e. 2 calibration cycles). If the display is unclear or there is a low battery alarm within 6 years, professional personnel should immediately replace it. Other functions: M-Bus communication function: If the instrument supports it, it can be connected to the collector through the M-Bus bus (cable does not distinguish positive and negative poles

Installation of flow meters

1. Detailed explanation of the usage method of AKR-C ultrasonic heat meter

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