Proper installation of a pressure transmitter is crucial to ensure accurate readings and long-term reliability. Here’s a detailed guide on how to install the device correctly, based on insights from an electrician forum by Li Gong. It's important to note that the cable connection port comes with a moisture-proof protective cover. Avoid cutting the cable or damaging this cover during installation, as it can compromise the moisture resistance and lead to failure. The transmitter should be installed in a well-ventilated, dry area that is free from corrosive substances and excessive heat. If placed outdoors, always use a protective cover to shield it from direct sunlight and rain. Failure to do so may result in reduced performance or even malfunction. Mount the transmitter directly onto the pipe or vessel wall using the standard M20 x 1.5 pressure interface threads. No mounting bracket is required. The pressure port is designed with a sealing groove. When dealing with high-pressure applications, consider adding a nylon or copper gasket to ensure a tight seal. When connecting the cable, make sure to rotate it in the same direction as the transmitter. Incorrect rotation can affect the device's protection and potentially cause damage. For adjustable models (with Z for zero and S for range), follow these steps: unscrew the adjustment screw marked for the parameter you want to change, insert a small screwdriver, and gently turn the potentiometer while monitoring the output. Once adjusted, secure the screw tightly to prevent moisture ingress. As a precision instrument, the transmitter must be handled carefully. Avoid dropping or hitting it, and keep the tightening torque under 70Nm. For low-range transmitters (less than 0.5MPa), the torque should not exceed 14Nm. Protect the cable from damage, especially in industrial environments. It’s recommended to use metal conduit or overhead wiring. Never loosen the sealing nut at the cable exit, as this could allow moisture to enter. If the medium temperature exceeds the transmitter’s operating limit, use a cooling tube or other cooling system to bring the temperature within the acceptable range. This helps protect the internal components from thermal stress. Although the transmitter is made of stainless steel and offers some corrosion resistance, it’s advisable to choose a corrosion-resistant model if the measured medium is aggressive. Also, avoid solidification within the working temperature range, as it may block the pressure ports and damage the sensitive elements. To clean the pressure port, use trichloroethylene or alcohol. Inject the cleaning fluid into the port and gently shake it before draining. Do not use any tools to probe inside, as this can damage the sensitive core. Finally, ensure the system is not overloaded, and the measured pressure must not exceed the transmitter’s protection limit. If the output seems abnormal, stop the operation and inspect the device immediately.
DongGuan BoFan Technology Co.,Ltd. , https://www.ufriendcc.com