Crystal by AMETEK STC’s XP2i Digital Pressure Gauge features a special PSV mode designed to test pressure safety and relief valves. Once the valve opens, the XP2i detects the pressure drop and displays the maximum pressure that the gauge ever reached before the drop. This value remains on the display until the technician clears it. Rather than two technicians possibly reporting different values when the analog gauge spikes, with the XP2i, both technicians would write the same value, even to a thousandth of a psi. The XP2i Digital Pressure Gauge features three accuracy levels, 0.1% of reading, 0.05% of full scale, or 0.02% of full scale.
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