How to calculate the level and position using double-flat flange sensors? If the values transmitted remotely do not match those on-site, how can they be adjusted to match?

The grade calculation is done using light media; when the differential pressure is zero, it represents the range for heavy media. Once the migration amount is determined, it can be entered into the handheld device. The liquid level is directly used to calculate the differential pressure; the migration amount will do as well

It’s just a makeshift solution; adjusting the differential pressure by an appropriate amount will do. This can only be used as an emergency measure and is not recommended for regular use. It’s better to identify the cause of the deviation, such as changes in density or blockages in the level gauge due to leaks.

Didn’t you make it clear? One time it’s the level of the interface, and another time it’s the level of the liquid. The remote reading value does not match the actual value on site; the remote reading value refers to what is displayed by the system, but what about the value on site? Is it a double-flange gauge face, an on-site glass panel, or a magnetic flip display?

Yes, it’s only been 10 years since it was established. Please forgive me!

This post was last edited by saaaa on 2019-8-2 20:17. I understand what the original poster means: it is in the presence of a liquid level. No, how can you make up the number? For the liquid level, (『475 minus the measured differential pressure』/range) = percentage of the actual liquid level, where X is the lower limit of the range. Regarding the range limits, low density corresponds to the lower limit of the range, while high density corresponds to the upper limit. By loosening the bolts on the high and low pressure sides and exposing it to the atmosphere, the differential pressure value read at 475 is used for calibration. The lower limit of the range is the pressure value corresponding to low density minus the calibration amount, and the upper limit of the range is the pressure value corresponding to high density minus the same calibration amount.

Just to fill in the gaps – it’s the method I use regularly. First, let’s see whether the remote value is higher or lower than the on-site value The high-range scale shifts upward as a whole, while the low-range scale shifts downward as a whole. The size of the range shift = Percentage at remote end – Percentage at local end, multiplied by the range differential pressure at the remote end. For example, a distance of 1 meter results in a display of 60%. The on-site reading shows 50%. Value to be moved====(60%-50%)*differential pressure over the remote transmission range. The remote transmission is on the high side, with an overall upward trend. Make fine-tuning after it’s completed.

Double-flange differential pressure level gauges generally need to be shifted, and the specific amount of shift can be calculated. Otherwise, the situation you mentioned would definitely occur.

Does this formula also apply to boundary positions?

Range (heavy medium – light medium), in gh. During calibration, I usually have the operator drain all the water, set the value displayed on the gauge to the lower limit, and then proceed with the adjustment. The density of the medium has a significant impact; if the density of the magnetic flap float is not appropriate, it can greatly affect the accuracy of the readings!