HART intelligent pressure transmitters are high-precision, high-stability, intelligent pressure measuring instruments for real-time communication. The instrument can be managed, adjusted, or monitored using HART communication, and can also be configured on-site using push buttons. What are the factors that affect the communication of HART intelligent pressure transmitters during use? The supply voltage is too low: When the HART intelligent pressure transmitter is in use, it encounters phenomena such as no communication, output error, and flickering of the meter head, etc., because the voltage supplying power to the HART intelligent pressure transmitter is too low, resulting in the failure of the HART intelligent pressure transmitter to communicate and the output is abnormal. Replacing the power supply will solve the problem The cable is too long: When the HART pressure transmitter does not communicate and the voltage of the measuring terminal is normal, the cable length must be judged. If the cable length is too long, the communication waveform of the HART intelligent pressure transmitter will be severely distorted, and communication will not be possible. Switching to cross-linked cables and reducing the length of the cable can effectively solve this phenomenon. Electromagnetic Interference: When the HART intelligent pressure transmitter is in use, there are some phenomena such as transmitter display failure. If the on-site power supply voltage is normal, and the output and communication are normal, it can be confirmed that the HART intelligent pressure transmitter does not communicate and is incorrectly indicated due to line interference. Electromagnetic interference, usually after excluding the power supply voltage, loop resistance, correct wiring, and smooth line, there is also the problem of non-communication that needs to consider the problem of electromagnetic interference, usually the problem of the field is difficult to reproduce in the laboratory, although the HART intelligent pressure transmitter has passed various electromagnetic compatibility tests in the field, there may be a variety of interference problems. In order to avoid the occurrence of electromagnetic interference, the signal line should be twisted, shielded, grounded, filtered and other methods, the distance between the signal line of the instrument and the power cable should be increased, the wire should be shortened, parallel wiring should be avoided as much as possible, and the interference source parts such as transformers should be magnetically shielded. Star Meter Technology Co., Ltd. is a high-tech enterprise integrating R&D, production and sales. Specializing in the production of pressure transmitters, liquid level transmitters, temperature transmitters, temperature and humidity transmitters, differential pressure transmitters, soil moisture transmitters, 3051 transmitters and related instrumentation accessories. A number of products under the Xingyi brand have obtained a number of patent certificates issued by the state, such as CE certification, IS9001 certification, SGS certification, TüV SüD certification, explosion-proof certification, etc. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!