Requirements for the installation location of level transmitters
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This post was last edited by Refiner on 2016-3-22 at 15:34. What are the installation requirements when a double-flange level gauge and a float level gauge are used together?
Double-flange level gauges have a wide measurement range; the low and high limits for process operation are set accordingly, while the float is generally positioned within the range corresponding to normal process operation parameters.
I’ve encountered such cases: there is a significant difference between the normal liquid level and the level when the machine is shut down, for example in the suction tank of a compressor. The transmitter measures the liquid level range from LL to HH (excluding HHH) for monitoring by the DCS ； HHH shuts down the compressor using three level float switches. @jiaguoyun
I would like to ask: for the level of coking heavy oil, there are generally two types of level sensors – double flange type and float type – and their safe operating levels are different. I want to know whether their installation heights are the same or if there is a difference between them
Heavy oil has high viscosity and is prone to clogging; is its density constant? It seems that the differential pressure type isn’t suitable； Also, is the float connected to a bypass pipe? A contactless type would be better, right? Does your factory encounter many malfunctions during use, and what types of malfunctions are they?