User`s guide

108 34450A User’s Guide

4 Specifications

Supplemental measurement specifications

Tab le 4-7 Supplemental measurement specifications

DC Voltage

• Measuring Method:

• Sigma Delta A-to-D converter

• Input Resistance:

• >10 GΩ ± 2% range (Selectable 100 mV, 1 V ranges)

• 10 MΩ ± 2% range (typical)

• Input Protection:

• 1000 V on all ranges (HI terminal)

Resistance

• Measurement Method:

• 2-wire or 4-wire Ohms

• Open-Circuit Voltage

• Limited to < 2.8 V

• Input Protection:

• 1000 V on all ranges (HI terminal)

DC Current

• Shunt Resistance:

• 1 Ω for 10 mA, 100 mA

• 90 Ω for 100 μA, 1 mA

• 0.01 Ω for 1 A, 10 A

• Input Protection:

• Externally accessible at Rear Panel 0.4 A, 500 V fuse for I terminal

• Internal 11 A, 1000 V fuse for 10 A terminal