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『Wiring of mass flow meter transmitter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. Troubleshooting of Quality Flow Meter
If there is a large error, the accumulator does not light up or increase in value, or there is a blank space on the display, the reasons for this are: a. Improper installation can directly cause zero drift of the flow meter. For example, if the quality flow meter is installed close to the pump outlet, the sensor support strength is insufficient, the connection flange welding is improper, which generates stress signals, and the cable is affected by electromagnetic interference. b. If the display does not light up due to wiring issues, check the power connection of the integrator. If the fuse is blown, confirm that the input voltage is consistent with the nominal value of the standard voltage and whether the AC and DC forms are the same. If the accumulator does not increase with the flow rate, the wiring of the accumulator should be checked. If the accumulator is equipped with forward/reverse programs, the wiring of the flow meter should be checked. Incorrect wiring of the flow meter can cause the accumulator to not increase in reverse flow. c. If there is gas entrapment, gasification, or two-phase flow in the measured medium due to changes in the process medium, the transmitter will display an alarm, and in severe cases, the sensor will stop working. d. The dust collector sent by the elder brother has failed. e. Sensor failure. f. Pipeline blowing problem. Troubleshooting of Quality Flow Meter - Before installing and using a newly calibrated flow meter, it is important to pay attention to zero calibration under current operating conditions. It is necessary to ensure that the flow meter is filled with medium and close the shut-off valves at both ends before zero calibrati
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2. D07-7BM mass flowmeter user manual: [1]
The D07-7BM mass flowmeter user manual mainly covers the product usage method and common troubleshooting solutions. The specific content is as follows: Product usage method: Installation requirements: The flowmeter should be installed in a place with low vibration and dry environment to avoid strong electromagnetic interference. Cut off valves need to be installed on both sides of the sensor for easy maintenance and calibration. Electrical connection: The power cord should use shielded cables, and the grounding resistance should be less than 1 Ω. The signal output terminal supports 4-20mA or pulse signals and needs to be configured according to the requirements of the control system. Startup process: After power on, it needs to be preheated for 10 minutes, and can only be put into use after the instrument self-test is completed (displaying "READY"). Zero calibration is required for the first use. Operating parameters: Set parameters such as range, unit, and small signal cutoff value through panel buttons or upper computer software. The default range is 0-1000kg/h, which can be adjusted according to actual needs. Daily maintenance: Check the grounding resistance and cable connections once a month, clean the sensor surface with a soft cloth every quarter, and avoid using chemical solvents. Common troubleshooting solutions: Fault