The Additel ADT760 series pressure calibrator is a portable automated pressure calibrator with a built-in pump, precision pressure sensor, internal controller, and a large touch-screen color display. To generate pressure, simply key in the desired pressure and the Additel 760 will do the rest. Each unit has four channels: one internal pressure channel for source and measure pressures, two external pressure measurement channels, and one electronic measure and source channel. This calibrator series has three standard models with the option of adding HART communications, documentation, and data logging.  The  760-D gives you differential and gauge pressure but at a higher pressure range than the ADT760-LLP. Covering the range of -12.5 to 35 psi (-0.86 to 2.5 bar) and with an accuracy of 0.02%FS, the ADT760-D is an ideal solution to cover very common gauge and differential pressure measurements. The Additel 760-D comes with an internal module covering its full range, but lower pressure modules down to ±10 inH2O differential can be purchased to improve accuracy at lower pressures. Documenting Process Functionality: Each model of the Additel 760 series has an option incorporating documentation and communication functions turning your 760 into a multifunction documenting process calibrator. This feature provides HART communication, task documentation and data logging.