First, the water pump remote pressure gauge in the pipe without water, whether the pointer should refer to 0Second, when the inverter is not bad and does not work, whether the table of sliding resistance is bad, so that the frequency converter can not be induced without action. Thank you for your advice.
1, no water does not mean that there is no pressure, if the pipe is completely closed, the pointer should be in the pipeline static reaction, but if the pipeline is not very closed under the condition of no water, it should be in a null pointer;2 、 the remote pressure gauge is just a contact signal, that is, the relay output, so you only need to determine whether the pressure meter is closed properly. Under normal circumstances, the inverter will not affect the working state.
The pressure gauge (English Name: pressure gauge) refers to the elastic element as the sensitive element, measuring and indicating higher than ambient pressure meter is widely used, it almost all the industrial processes and scientific research. In the heat pipe network, oil and gas transmission, water supply system, vehicle repair and maintenance shop, and other fields can be seen everywhere. Especially in the control and measurement process, because the elastic sensitive element of mechanical pressure gauge has the characteristics of high mechanical strength and convenient production, the mechanical pressure gauge is widely used.
Remote pressure gauge principle is no water does not mean that there is no pressure, if the pipe is completely closed, the pointer should be in the pipeline static reaction, but if the pipeline is not very closed under the condition of no water, it should be in the zero pointer; 2, remote pressure gauge is only a contact signal is relay output, therefore only need to determine the pressure gauge can have a normally closed contact. Under normal circumstances, the inverter will not affect the working state.
