{"id":3132,"date":"2022-04-29T14:23:37","date_gmt":"2022-04-29T06:23:37","guid":{"rendered":"https:\/\/www.hginstrument.com\/?p=3132"},"modified":"2022-04-29T14:23:37","modified_gmt":"2022-04-29T06:23:37","slug":"common-faults-and-treatment-of-electromagnetic-flow-meter","status":"publish","type":"post","link":"https:\/\/www.hginstrument.com\/fr\/common-faults-and-treatment-of-electromagnetic-flow-meter\/","title":{"rendered":"Common faults and treatment of Electromagnetic Flow Meter"},"content":{"rendered":"<table width=\"1219\">\n<tbody>\n<tr style=\"background-color: #d8d8d8;\">\n<td style=\"text-align: center;\" width=\"260\">Ph\u00e9nom\u00e8ne de d\u00e9faillance<\/td>\n<td style=\"text-align: center;\" width=\"513\">Raison<\/td>\n<td style=\"text-align: center;\" width=\"446\">Mesures de traitement<\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align: middle;\">Without flow signal output<\/td>\n<td width=\"513\">1.The power supply to the instrument is abnormal.<br \/>\n2.The cable connection is abnormal.<br \/>\n3.Liquid flow condition does not meet requirements.<br \/>\n4.The sensor parts are damaged or the inner wall of the meter tube has an adhesion layer.<br \/>\n5.The converter component is damaged.<\/td>\n<td width=\"446\">1.Check whether the output voltage of the power board is normal.<br \/>\n2.Connect cables correctly.<br \/>\n3.Check the flow direction and whether the tube is fully filled with liquid.<br \/>\n4.Periodically clean up the adhesion layer on the inner wall of the meter tube.<br \/>\n5.Replace the damaged components.<\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align: middle;\">Output fluctuation<\/td>\n<td width=\"513\">1.Electromagnetic interference produced by external stray current.<br \/>\n2.The pipe is not fully filled with liquid or the liquid contains air bubbles<br \/>\n3.The power supply PCB of the flowmeter is loose.<\/td>\n<td width=\"446\">1.Check the operating environment of the instrument, whether there is large electrical appliances or welding machines which are working.<br \/>\n2.Make the liquid fully fill the meter tube, and eliminate the bubles in the liquid.<br \/>\n3.Disassemble the flowmeter and reinstall the circuit board.<\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align: middle;\">The flow measurement is inconsistent with the actual value<\/td>\n<td width=\"513\">1.Transmitter circuit board is failure.<br \/>\n2.The fluid flows too slowly and contains tiny bubbles.<br \/>\n3.The signal cable is not properly connected.<br \/>\n4.The converter&#8217;s parameter Setting is incorrect.<\/td>\n<td width=\"446\">1.Check whether the transmitter circuit board is in good condition.<br \/>\n2.Ensure that the flow rate of the measured liquid in the pipeline is higher than the flow rate low limit.<br \/>\n3.Check whether the signal cable connection and cable insulation are in good condition.<br \/>\n4.Reset the converter set value, and calibrate the converter&#8217;s zero point and full span point.<\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align: middle;\">Output signal is out of range<\/td>\n<td width=\"513\">1.The signal cable is incorrectly connected.<br \/>\n2.The converter&#8217;s parameter Setting is incorrect.<br \/>\n3.The converter does not match the sensor model.<\/td>\n<td width=\"446\">1.Check the connection of the signal loop.<br \/>\n2.Check whether the parameters setting of the converter, zero point and full span point meet the requirements.<br \/>\n3.Replace the converter to make it model match the sensor model.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>Common faults and treatment of Electromagnetic Flow Meter<\/p>","protected":false},"author":1,"featured_media":2768,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2130],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/posts\/3132"}],"collection":[{"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/comments?post=3132"}],"version-history":[{"count":0,"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/posts\/3132\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/media\/2768"}],"wp:attachment":[{"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/media?parent=3132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/categories?post=3132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hginstrument.com\/fr\/wp-json\/wp\/v2\/tags?post=3132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}