Oil gauging tapes are mainly used to measure the height of the space. When measuring the space, if there is no certain skill, the accuracy is still not easy to grasp. In order to improve the accuracy of oil gauging tapes measuring the height of space , we need to operate according to the following methods.

1. When measuring, the ruler should be dropped at the reference point of the designated metering port, and the method of lowering the ruler should be the same as the actual oil height measurement;

2. How to improve the accuracy of measuring space height by oil gauging tapes.

the ruler thallium is the most important at this time. When the ruler thallium has just entered the liquid, keep the ruler thallium at this position until the liquid level stops disturbing. After the liquid level is stable, continue to fall slowly until an integer on the oil gauging tapes the meter or decimeter scale is exactly on a horizontal line with the reference point;

3. Propose oil gauging tapes, record the length of the oil gauging tapes wetted by the oil and the scale value of the oil gauging tapes on a horizontal line at the reference point. The difference between these two values is the empty height value .

4. Measure in the same way until the difference between the readings of two consecutive measurements is not more than 2mm. If the difference between the second measurement and the first measurement is no more than 1mm, the first measurement is taken as the oil height; if the difference between the second measurement and the first measurement is greater than 1mm, remove the two measurements the average value is regarded as the oil high;

5. The air height value is converted into an equivalent oil height value, that is, the height from the gauge point at the bottom of the container to the reference point minus the reading of the oil gauging tapes at the reference point plus the oil immersion height of the oil gauging tapes;

6. According to the requirements of the verification regulations, the volume meter of the tank car is calculated by the empty distance. When in use, the empty height can be directly measured by the t-square, and the actual volume can be directly found in the corresponding volume meter.