Looking for electric contact level gauge samples
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I’m not sure which expert can provide this information. By the way, is it an analog signal that is transmitted between the electric contact level gauge and its secondary display? As for the connection from the secondary display to the DCS, it can be done via digital signals or 4-20MA signals. Generally, the relay dry contacts provided by the electric contact level gauge have 4 alarm outputs: high-high, high, low, low-low, right? ?
Is the electrical contact a 4-20ma signal? They are all called contacts; it should be contact signals! The number of contacts produced by different manufacturers also varies!
A electric contact level gauge measures water level based on the difference in electrical conductivity between steam and water. The conductivity of water is generally tens of thousands to hundreds of thousands of times higher than that of steam. A electric contact level gauge consists of a level measurement container, electrodes, electrode cores, a level display light, and a power supply. The electrode is mounted on a water level container to form an electrode water level transmitter. The electrode core is insulated from the housing of the water level measurement container. Due to the high electrical conductivity of water, the resistance is low; when the contacts are submerged in water, a short circuit occurs between the electrode core and the container shell, causing the corresponding water level indicator light to turn on, thereby indicating the water level inside the steam drum. The electrode located in the steam has high resistance due to the low conductivity of the steam, which prevents a circuit from being formed; as a result, the water level indicator light does not turn on. Therefore, the number of bright display lights can be used to reflect the level of water. Depending on the measured water level, a different number of electrodes is selected ； Of course, secondary instruments in special forms can meet various water level alarm requirements.
Electrical contact type ones are level switches, right? Like float-type ones, as well as those based on radio frequency admittance or tuning forks
Electrical contact level gauge – it was explained in great detail on the 3rd floor. It involves installing a dozen or so electrodes around the perimeter of a measurement cylinder. The highest number we used was 19. There is a junction box on site; all these 19 connections are made to this box, from where they are connected to the secondary meters. The secondary meters have a light column that indicates the liquid level, and an ALARM & INTERLOCK signal is generated based on the set parameters
Is what the poster is referring to a “magnetic float level gauge with remote transmission?” ”
Great! I was just about to ask that question – you’ve answered it for me
I’d be happy to help you solve this issue; our company has this product, which has performed well in actual use for several years! It’s a shame this post is from several years ago