The 7150plus' Digital Multimeter (DMM) is suitable for general-purpose bench applications and for systems use. It performs all common measurement functions and has a scale length in excess of 200000. The DMM has a built-in GP-IB Systems Interface which conforms with the internationally recognized IEEE 488 (1978) standard, thus ensuring the compatibility of 7150plus with a wide range of system devices produced both by Schlumberger and by other manufacturers. The DMM is designed to be calibrated 'digitally*, either via the front panel controls or via the GP-IB Interface. The DMM's built-in facilities obviate the need for special tools and mechanical strip-down, thus significantly reducing calibration down-time.