1 3458A Calibration Introduction
26 Keysight 3458A Calibration Manual
– The current input terminals (I) are rated at ±1.5 A peak with a maximum
non-destructive input of <1.25 A RMS. Current inputs are fuse protected.
The multimeter's input voltage ratings are:
– The multimeter will be damaged if any of the above maximum
non-destructive inputs are exceeded.
Rated input Maximum non-destructive input
HI to LO Input: ±l000 V peak ±1200 V peak
HI/LO W Sense to LO Input: ±200 V peak ±350 V peak
HI to LO W Sense: ±200 V peak ±350 V peak
LO Input to Guard: ±200 V peak ±350 V peak
Guard to Earth Ground: ±500 V peak ±l000 V peak
HI/LO Input, HI/LO W Sense, or
I terminal to earth ground:
±l000 V peak ±1500 V peak
Front terminals to rear
terminals:
±1000 V peak ±1500 V peak
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