Fluke 2271A automates calibration of pressure gauges, transmitters and switches. Its modular chassis accepts two PM200 or PM500 measurement modules at the same time. The family spans −100 kPa to 20 MPa; the installed modules determine the actual range. The built-in EMM electrical module supports HART, 24 V DC loop power, mA and DC voltage measurements. Two test ports and an atmospheric reference port support device connections. Pressure ranges, uncertainty, NPT/BSP manifold and HC20/P3000 ports are selected for the ordered configuration. The CPS contamination prevention system and COMPASS software are options. A suitable clean, dry air or nitrogen supply is required.