The Hewlett-Packard 3437A System Voltmeter is designed for systems. It is a high-speed dc voltmeter with sample and hold. The standard unit measures dc volts, provides trigger delay, burst reading capability and Hewlett- Packard Interface Bus (HP-IB). There are three dc floating input ranges: 0.1 V, 1.0V and 10.0V full scale with a maximum display of "1998." Sample and Hold allow the HP 3437A to be an instantaneous reading voltmeter. The trigger delay can be set from 0.1ns to 1.0 second and the number of readings can be set from 0 to 9999 readings.