Part 2

Specifications and General Information 651Valid for thermocouple compensation only. The total accuracy of349 7A based temperature measurement systems including compensationaccuracy, 349 7A scanner offsets. D VM accuracy andsoftware accuracy is shown below.Temperature Coefficient(O°C - 18OC,28OC - 55OC)StabilityTemperature DifferenceAcross IsothermalBlock:Software CompensationOutput:(Channel B91Additional In SeriesResistance:(Hardware Compensasationonly).100mVlOC2.5VQ25OC.075°C/1000 Hours< .Z°C1 OQOpen Channel Isolation:Hi to Lo25°C. < 85% R.H.40°C. < 60% R.H.40°C, >95% R.H.Option 010 > 10'On > lo9nOption 020 OpenClosed< 10'OCl>lo8 12> lo9n> 107nLo to Guard 1o7nGuard to Chassis > 1 O'OQ > 1 09nOperating CharacteristicsMaximum Switch Rate: Random Channels;Using Hardware Increments: 475lsecondRated Switch Life at 1 VA: 1 o7 operationsAll Relays are Break Before MakeITemperature Measurement AccuracyAC PerformanceFor a 3497A based temperature measurement system.Includes all errors introduced by the 3497A and the HP 3054AlCData Acquisition/Control System Software.High to LOW Capacitance: Channel Open: < 10 pFIper channelChannel Closed: