LC3010 float level calibration method
Thread Content
The light medium for the sensor is 0.9, while the heavy medium is water with a value of 1.0; the measurement range is 1350 MM. The instruction manual for the float level gauge LC3010 describes the methods for calibrating the level. I’m a bit confused, so those who have used this type of level gauge could please offer some guidance. Question 1: The instruction manual states that the calibration process starts with the calibration of the dry coupling point, that is, calibration without any liquid level. But how is the calibration done for the liquid level threshold? The zero point for this threshold is set under the condition where there is only light medium present. Question 2: The two liquid level calibration points mentioned in the instructions are not very clear. In practical use, can it be converted to water height for calibration purposes? This is how it was done with the Shanghai Xindong devices used before. Question 3: The difference between sensor upper/lower limits and PV upper/lower limits. Question 4: If the liquid level is being measured and the density of the medium changes, but not by much, can we simply adjust the parameter related to density instead of performing a re-calibration? (2) What should we do if the density of the light or heavy medium changes during measurement? Do we need to adjust the parameter for the density difference first and then carry out a re-calibration? Question 5: If the wrong model is selected – one that is intended for measuring level boundaries instead of liquid level – can it still be used properly after correcting this parameter and recalibrating it? I would also appreciate some technical guidance from experienced experts; thank you in advance!
How can it not be displayed in the corresponding section?
It seems that Haiyou isn’t using the Fisher LC3010 float level gauge; well, has the problem disappeared without a trace again? ? ? ?
The OP’s question is very targeted and indeed worth deep reflection!
The OP’s question is very targeted and indeed worth deep reflection!
As long as it is confirmed that the model is designed for measuring level positions, two-point calibration can be carried out using water; set the parameters first before proceeding with the calibration. If the wrong one is chosen, then one has to find a solution with the manufacturer.
I asked the manufacturer, and there’s no issue with the model selection; that number indicates an older version of the model selection.
Hey, has no one used HaiChuan? I don’t think so; recently I’ve noticed that people aren’t very enthusiastic about answering questions.
Did you only buy the table header? The site is calibrated using water; the injection height is calculated by converting the density of the light medium and that of water, namely 0.9/1.0*1350. In other words, the actual measurement range (pv) of the float is only 135 mm ； If the medium is completely emptied and filled with water, those are the upper and lower limits measured by the sensor ； The density changes definitely require recalibration; if the requirements aren’t high, it can be ignored, as the accuracy achieved through on-site water injection calibration is already low ； What measures the liquid level cannot measure the interface.
I bought a set; thanks for the reply. It was fixed some time ago. By \"emptying\" as you mentioned, do you mean that the lower limit is incorrect? The lower limit should be when it’s completely filled with the light medium, right?