We have many pH/ORP applications in our plant. We consistantly have reliability issues on our process streams with a high sodium content. We have used Foxboro Dolphin series, ASTI, and Yokogawa. Anyone tried Metler-Toledo? Any suggestions as to solutions for better reliability?
I work at a Chlor-Alkali facility where we have both 98% and 76% sulfuric acid. Seems too many people at the plant do not show enough respect for this very dangerous chemical. Looking for ideas to convey that would give or scare people into using the proper PPE when working aroung these areas...
We have a rectifier where I work that produces 100,000 amps DC at about 330V. It has copper splice plates that mate to aluminum buss off the load side of the rectifier. Last week, we found one of these connections in excess of 520 degrees F. After about 12 hrs of finding the problem, management...
We are in the engineering phase of a new HCL synthesis unit. It has been asked that we send the 4-20mA signal from several instruments to 2 separate PLC's. Will the parallel resistances of the inputs cause a problem? How would you do this? We are using AB Control Logix.
I am trying to measure the liquid level in a vessel that is operated under a vacuum where NaOH is being evaporated from 32% to 50%. The low side leg is filled with Halocarbon, while the high side is tapped near the bottom. We are constantly battling accurate readings. Could this installation...
I am having an issue with measuring voltage across an electrolyser cell in a Chlor-Alkali plant. We are just finishing start-up/performance tests and need to resolve this problem. First of all, we have 66 cells with a system voltage of 300V and 100KA which will allow us to have a voltage drop...
