The Solution – No Math, No Mistakes & Easy to Understand
One differential pressure gauge, installed using the same taps at the filter inlet and outlet, can eliminate these problems. By eliminating the use of two gauges, the rate of error will drop to the accuracy rating for the one DP gauge. The operator would also better understand the reading, without having to know to “do the math”.
A differential pressure gauge dial can also feature a red arc indicating that the filter is clogged, or is about to become clogged…also known as the “alarm condition”. This alarm condition would be enhanced further if the DP gauge dial had the words “filter” or “clean” and “dirty” on the single DP gauge dial face. None of this is possible with two separate pressure gauges.
In addition, with one DP gauge a switch or transmitter may be added as a standard option. This has the benefit of creating a local and remote monitor in one instrument…so others, who are not on the floor but perhaps in a command center, can see the filter condition.
In this world of Lean solutions the term “Poka-Yoke” comes to mind, which roughly means “mistake-proof”. Essentially a DP gauge can present the operator with a differential pressure measurement reading that is immediately understood. This not only reduces errors but simplifies operator training.
Once a DP gauge shows a reading “in the red”, points to dirty, or has an electrical output from the switch or transmitter, the alarm condition is understood. The operator can then take the appropriate action needed to remedy the situation. The filter can be serviced at the proper time, not too early and not too late.
Read about our differential pressure filter applications.