IP/NEMA scores outline the instrument's compatibility with particular environmental situations. Gauges with a vent plug generally have dual IP ratings: the instrument gives more powerful protection if the vent is shut, and more typical resistance in the event the vent is open up. Due to the fact there are many http://pressure-gauge-accessory08642.theideasblog.com/12820174/the-best-side-of-pressure-gauge-protection