Fluke 718Ex combines a manual pump, pressure sensor and mA input for pressure-loop calibration in hazardous areas. The 30G, 100G and 300G models have upper limits of 30, 100 and 300 psi. Pressure and current appear simultaneously, and the switch test captures set and reset points. The pneumatic system requires dry air or non-corrosive gas. The transmitter loop uses an external intrinsically safe supply. Select approved batteries, accessories, connections and Ex operating conditions from the current safety documents and CCD control drawing for the exact configuration.