Do you know the three precision problems that should be paid attention to when the metering pump is used? Huaian dosing metering pump manufacturers tell you!

The steady precision of the 1. metering pump.

The rated flow rate of + 2%. If the measured 100% stroke flow rate is 1000L/h, the allowable deviation of the steady-state accuracy is + 2%*1000= + 20 L/h. Steady state accuracy refers to the calibration of flow volume of pump with different volume at different time points without adding any adjustment or change to the relevant pump and related system.

2. linear precision.

At the rated flow rate of + 3%, if the measured 100% stroke flow rate of the metering pump is 1000L/h, the permissible deviation of the linear precision is + 3%*1000= + 30L/h. Linear precision refers to the metering pump 10%~100% range, even selected different stroke point calibration, the measured flow and the best fitting value of the deviation between the.

3. repetition precision.

At the rated flow rate of + 3%, if the measured 100% stroke flow rate of the metering pump is 1000L/h, the permissible deviation of the repetition precision is + 3%*1000= + 30L/h. The repeatability accuracy refers to selecting a certain travel point to calibrate the flow volume in the range of 10%~100% stroke of the metering pump, then changing the stroke of the pump for a period of time, and then returning to the original travel point to calibrate the flow rate and get the flow deviation.