How to Calibrate a Flow Meter
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How to Calibrate a Flow meter A flow meter is a device used to measure the linear, nonlinear, mass or volumetric flow rate of a liquid or gas. But how do you know if your flow meter is accurate? By calibration: a process by which the operation of an instrument is checked against a standard with a high degree of accuracy. The flow meter is calibrated by weighing the quantity of any liquid or gas that passes through it during a certain measuring time. Instructions 1 Turn the meter on. When the meter is on, the display button says "With gallon preset," which means it is calibrated at factory preset to the viscosity of water. Hold down the "Calibrate" button and switch it to "Leaders" preset. Hold down the button till it says "Cal B." This means that this is no longer a factory preset but something you can change. 2 Hold the "Display" button for four or five seconds or until it says "DD Cal," which means dispense display. Let go when it says "Run 01." Put the flow meter in the sample fluid. When you do this, the little turbine shows up at the bottom left, which confirms that the meter now has fluid going through it. 3 The display button now says how much water you put in it. You can change this display to the amount of liquid you ran through the flow meter. If you measured 5 gallons of water in the meter, hit the "Calibrate" button five times. 4 Hold down both the "Display" and "Calibrate" buttons. It now says "Run 02," which means you can do another sample if you like. If you don't want to do another sample, just hold both buttons until it says "Cal end." |
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