Pressure transmitter commonly used signal output mode for current output, output range of 4~20mA, when the output signal of the pressure transmitter is greater than 20mA, there may be five situations, the following we will answer one by one. First of all, we need to check whether the power supply of the pressure transmitter is normal. If it is less than 12VDC, check whether there is a large load in the loop of the pressure transmitter system, and the input impedance of the pressure transmitter load should meet the requirements of the current type load ≤ { (us-7.5)÷0.02 (us=supply voltage)} Ω voltage type load ≥ 100kΩ. Second, whether the actual pressure exceeds the selected range of the pressure transmitter. If this is the case, the range of the pressure transmitter should be reselected, and the full scale of the pressure transmitter should be higher than the actual range. Third, whether the pressure transmitter is damaged Severe overload can sometimes damage the isolation diaphragm of the pressure transmitter, resulting in damage to the pressure transmitter, at this time the customer can not disassemble the pressure transmitter without authorization, and needs to return to the manufacturer for repair. Fourth, whether the wiring of the pressure transmitter is loose This situation is easier to handle, carefully check the wiring of the pressure transmitter, connect the wire and tighten it. Fifth, whether the power supply wiring of the pressure transmitter is correct Often customers consult the wiring problem, this situation is also more common, carefully check the product manual, connect the power cord to the corresponding terminal post can be. Product consultation, product customization, agent, technical inquiry, quotation, etc. If you have any questions, please contact Xingyi: 400-600-4496!