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1. How to calculate the temperature correction of the main engine fuel flow meter? The calculation method is as follows: the main engine power is required to be calculated based on the actual fuel consumption of the main engine and the calorific value of the batch of fuel. The formula is: where the denominator is the positive data of the host bench test; The molecular part is the actual measurement data of ship navigation, and the fuel consumption is based on the reading of the fuel flow meter (liters/hour), the specific gravity (subject to temperature correction), and the fuel calorific value provided by the fuel supplier Qiaoqing Yingshang. This calculation method has great flexibility, as long as the fuel consumption of the host during the corresponding period is measured, the power of the host during that period can be calculated. Of course, the fuel flow meter of the main engine must be accurate and use temperature corrected specific gravity. 2. What is the function and usage of linearity line correction for ultrasonic flow meters?
Improve the accuracy of results and determine the correction point.
.1、 Linearity line correction is based on the difference between actual measurement values and standard values, establishing a correction curve to adjust the measurement results. The correction curve can be adjusted according to the actual situation to improve the accuracy and reliability of the measurement results.
2、 Based on the measurement range and practical application requirements of the ultrasonic flowmeter, a series of correction points are selected. At each correction point, a standard flowmeter or other reliable flow measurement equipment is used for calibration to obtain th
3. How to perform zero calibration on differential pressure flow meters?
Firstly, check if there is any leakage in the valve. If so, if there is still medium flow in the pipeline after the valve is closed, the valve needs to be replaced.. After confirming that there is no leakage in the valve, open the high and low pressure valves of the differential pressure flowmeter and the balance valve connecting the two. At this time, adjust the zero point of the differential pressure transmitter again. After the zero adjustment is completed, close the balance valve again to measure normally.
4.e ➕ The calibration methods for E+H mass flow meters mainly include coefficient correction method, K value adjustment method, and following general calibration steps. They need to be operated by professionals using reliable equipment and recorded in detail. 1. Coefficient correction method: Based on the data analysis results, use the calibration software of E+H mass flowmeter or input the calculated coefficient correction value through the parameter setting interface. Some models can directly adjust the coefficient on the display screen. After completing the adjustment, it is necessary to conduct measurement verification again to ensure that the accuracy meets expectations. If the error is still large, repeat the above steps.
2. The K-value adjustment method online calibration method is suitable for situations where high accuracy is required and production is not stopped. The specific operation is to ins