Part 2

646 Specifications and General InformationSPECIFICATIONS TABLESSYSTEM ACCURACY SPECIFICATIONSThese system specifications combine individual accuracy specificationsto result in a total measurement accuracy specification. Forexample, the resistance specifications combine the DVM, currentsource and acquisition assembly error terms.Voltage Measured Through Acquisition Assembly3497A Configuration:DVM: 5% digit, auto zero onRelays Switches: Tree SwitchedAccuracy:(% of reading + number of counts)90 Days 23OC + 5OCVoltmeterDigits DisplayedRange 5% digits 4% digits 3% digitsSystem Noise RejectionNormal Mode Rejection (NMR): (50 or 60 Hz + .09%)Resistance Measured Through an Acquisition AssemblyDVM Digits DisplayedRejection3497A Configuration:DVM: 5% digit, auto zero onCurrent Source: As indicatedRelay Switches: Configured for a 4-terminal resistancemeasurementCharacteristicsEffective Effective CurrentResistance Resistance SourceRange Resolution Range RangeNMR is a function of the 3497A DVM configuration only andis not affected by the number of channels in the system.Effective Common Mode Rejection (ECMR): The ECMR of a 3497Abased system is a combination of the ECMR of the 3497ADVM and the effects of adding multiplexer assembliesand 3498A extenders.ECMR: l(kR imbalance in low lead, using tree switching,ac at 50 or 60 Hz, 25OC,