We were called out to a paper mill in South America - they had an issue reading their traditional boiler water glass gage. This particular boiler runs at 1400 psi. The customer had no way to compare the level of the gage to the level on the DP transmitter. Maintenance on this gage was also an issue, as it would take a full day to repair. It was critical that they have a boiler water glass gage that was easy to see at any angle, any distance (see before and after picture below
