New XP2i digital pressure gages (photo) are designed specifically for testing and calibrating pressure-relief or pressure-safety valves. Once the valve opens, the XP2i detects the pressure drop and displays the maximum pressure that the gage ever reached before the drop. This value remains on the display until the technician clears it. The XP2i features three accuracy levels: 0.1% of reading; 0.05% of full scale; or 0.02% of full scale. The gages are available in ranges from vacuum to 15,000 psi and are fully temperature compensated from –10 to 50ºC. All versions are ATEX, IECEx and CSA intrinsically safe. An optional datalogging upgrade allows the XP2i to collect and store up to 32,000 data points and easily download the results to a spreadsheet or protected PDF file. — Crystal Engineering, an Ametek STC brand, San Luis Obispo, Calif.
A reliable testing gage for pressure-safety valves
| By Mary Page Bailey and Gerald Ondrey