Electromagnetic flowmeter how to avoid lightning damage
2025-02-17
The hot summer days have arrived, and the temperature in many places has started the 30-degree heat mode. In the summer, there is more lightning, every year, every summer comes, due to lightning damage, there are a lot of, in fact, the correct lightning can be avoided from the impact of these disasters.
As a manufacturer of electromagnetic flowmeter, electromagnetic flowmeter applications in sewage, wastewater, corrosive liquid measurement, many of which are given to the municipal engineering drainage has a wide range of applications. The increase of thunderstorms, lightning more places often encounter electromagnetic flowmeter converter by lightning bad situation. Serious threat to the use of electromagnetic flowmeter safety. How to reasonably avoid lightning, electromagnetic flowmeter manufacturer Supmea today summarized a few measures for the majority of users for reference!
- 1、The length of the signal cable between the converter and the sensor can not be greater than 50M, and the signal cable must be galvanized pipe sleeve through, such as galvanized pipe in the air, the galvanized pipe should be reliably grounded with a wire, the grounding resistance is less than 10. electromagnetic flowmeter can only be accurately and stably measured with good grounding protection. In the installation should also do a good job of sensor grounding protection, so that the electromagnetic flowmeter can operate in a good working environment.
- 2、The power supply is 220v unidirectional AC, an air switch is added inside the instrument box, the lightning arrester and air switch are connected in parallel, and the wire comes out of the air switch and connects to a triple socket.
- 3、Lightning arrester grounding line length can not exceed 1M, cross-sectional area greater than 6MM square multi-stranded copper core insulated wire. If there is no nearby ground network, should be made in the vicinity of the lightning arrester for a simple ground network, the method is as follows: with three lengths of 1.5M flat steel or angle steel, according to the positive triangle arrangement into the ground, above the three flat steel bar with flat steel bar welded up in one of the corner of the welded bolts, and then the lightning arrester grounding line can be connected to the 220VAC lightning grounding line ground plane mounting panel.
These Supmea small summary of the electromagnetic flowmeter lightning you know, Supmea also welcome the majority of users at any time for technical exchanges, and you share the electromagnetic flowmeter technology!
