The first step in selecting a pressure transmitter for liquid level measurement is to determine whether to submerge or mount the sensor externally.
Mounting a liquid level pressure transmitter externally is nearly always preferable because a screw in pressure transmitter is normally cheaper than one that is immersed, and is easier to service.
If you are mounting a liquid level pressure transmitter externally, care should be taken not to install it onto pipes where there is likely to be a high flow of liquid or pump pressures since these may interfere with the hydrostatic pressure reading.
Featured screw-in liquid level pressure transmitter products
Remote water tank level monitoring via GSM mobile network - Monitor water levels in multiple tanks remotely using submersible sensors and GSM technology. Configure alarms for high/low levels and receive alerts via SMS or email.
Ammonium nitrate level sensing in agitated tanks at high temperature - Measure the liquid level of hot, concentrated ammonium nitrate using a flush ceramic sensor designed to withstand agitation and prevent crystallization issues.
Waterproof pressure transmitters are used when it is not possible to provide access from the outside at the point you would like to measure the liquid level. For example there is no way to fit a pressure transmitter to the outside of a buried water storage tank without excavating the ground around it, so a waterproof pressure transmitter is the most economical solution.
Normally a manufacturer will clearly describe in the specification whether a pressure transmitter has an immersion option. In Europe there is a system for rating the level of water tightness which is the Ingress Protection Rating or more commonly known as the IP Rating. For immersion the pressure transmitter should be sealed to a rating of IP68. If it is not clearly marked in the literature you should clarify with the manufacturer for what depth and duration it can be submerged.
Featured waterproof liquid level pressure transmitter products
Cooling tower basin water level transmitter - Ensure efficient cooling tower operation with the LMK382 submersible level transmitter. Its low-range measurement capabilities and robust design make it ideal for monitoring basin water levels, preventing pump damage, and optimizing water usage.
Water temperature depth sensor for cooling tower sump - I would like to drop a sensor into a stilling chamber and measure the water depth along with the water temperature if possible.
Related Help Guides
- Determining the hydrostatic pressure range for a tank level sensor
- Measuring liquid level in a sealed tank with a hydrostatic pressure sensor
- Difference between vented and non-vented water level measurement
- Determining water tank volume using hydrostatic pressure
- Measuring the volume of liquid in a horizontal cylinder tank
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