『Pointer flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
1. How to read the value of a flow meter? The reading of the flow meter mainly depends on the digital reading on the display screen, combined with the unit identification and instantaneous/cumulative flow status to determine the specific value. 1. The most common type of electronic data source display is the clustered word type, which directly reads the screen numbers: - The number with unit identification (such as m ³/h, L/min) is the current flow value - Distinguish between instantaneous flow (real-time change value) and cumulative flow (continuous accumulation value) - Multi parameter flow meters need to pay attention to the screen switching status (such as pressing a button to switch display modes) The pointer dial type is mainly used for mechanical flow meters: - Read the scale value pointed by the pointer - Combine the dial unit (such as 0-10 L/min) and multiple identification (X
10, X 100) - Keep facing the dial to avoid parallax error 3 Common Unit Potato Stove Identification - Volume Flow Rate: m ³/h (cubic meters/hour), L/min (liters/minute) - Mass Flow Rate: kg/h (kilograms/hour), t/h (tons/hour) - Special Medium: Nm ³ Hail Hand Cherry/h (standard cubic meters/hour, for gas) 4 Operation precautions - Do not touch sensors or regulating components during operation - Electronic type attention to abnormal alarm codes (such as E01, which usually indicates sensor failure) - High pressure pipeline flow meters must read within the safety window range 5 Numerical calibration requirements - first installation needs to reset to zero cumulative value - regular comparison of standby state to see if 0.00 is displayed - if continuous deviation is found, professional personnel should be contacted to calibrate differ
2. What is the reason why the pointer of the oil phase flow meter of the on-site mixed emulsion truck jumps normally but does not display the flow rate ..
The pointer of the oil phase flow meter of the on-site mixed emulsion vehicle jumps normally but does not display the flow rate, which may be caused by sensor failure, wiring problem, display screen failure, flow meter module failure, signal line connection problem, or central control setting problem. It needs to be gradually investigated. 1. Sensor malfunction: The flowmeter sensor is the core component responsible for converting fluid flow signals into electrical signals. If the sensor is damaged or its performance deteriorates (such as internal component aging, moisture, or mechanical impact), it may cause abnormal signal output. At this point, the pointer may still bounce due to the inertia of the mechanical structure, but the actual flow data cannot be collected correctly, resulting in no numerical display. Professional equipment is required to detect the sensor output signal and confirm whether it is within the normal range. 2. Poor or loose wiring is a common fault point. If there is virtual connection, oxidation or breakage in the connection wires between the sensor, display module and power supply, it will cause signal transmission interruption. For example, if the terminal block is not tightened or the cable is crushed and damaged. It is necessary to check whether all wiring terminals are tightened, whether the cable outer skin is damaged, and if necessary, re weld or replace the cable. Display screen failure: Display screen itself is damaged (
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