When calibrating a pressure switch on a nitrogen backup header would it be acceptable to drop the sensing line and hookup test equipment directly to switch for calibration using a water hand pump?
It's just a shop debate if water could compromise the header. Really whatever water left in the fittings is purged out with nitrogen header pressure before snugging up the fittings.
So what's your take,,,, bad practice? No harm?
It's just a shop debate if water could compromise the header. Really whatever water left in the fittings is purged out with nitrogen header pressure before snugging up the fittings.
So what's your take,,,, bad practice? No harm?