34410A/11A/L4411A User’s Guide 127
Specifications 5
DC Voltage
Measurement Method: Continuously integrating multi–slope IV A/D converter
10 VDC Linearity: 0.0002% of reading + 0.0001% of range
Input Resistance:
0.1 V, 1 V, 10 V Ranges Selectable 10 MΩ or >10 GΩ
(For these ranges, inputs beyond ±17 V are clamped
through 100 kΩ typical)
100 V, 1000 V Ranges Fixed 10 MΩ ±1%
Input Bias Current: < 50 pA at 25 °C
Input Terminals: Copper alloy
Input Protection: 1000 V
DC CMRR 140 dB for 1 kΩ unbalance in LO lead. ±500 VDC maximum
Resistance
Measurement Method: Selectable 4–wire or 2–wire ohms,
current source referenced to LO input.
Max. Lead Resistance 10% of range per lead for 100 Ω, 1 kΩ ranges.
(4–wire ohms): 1 kΩ per lead on all other ranges
Input Protection: 1000 V on all ranges
Offset Compensation: Selectable on the 100 Ω, 1 kΩ, and 10 kΩ ranges
DC Current
Shunt Resistor: 0.1Ω for 1 A, 3 A
2 Ω for 10 mA, 100 mA
200 Ω for 100 µA, 1 mA
Input Protection: Externally accessible 3 A, 250 V fuse
Continuity / Diode Test
Response Time: 300 samples / sec with audible tone
Continuity Threshold: Fixed at 10 Ω
Autozero OFF Operation (Typical)
Following instrument warm–up at a stable ambient temperature ±1 °C and <5 minutes.
Add 0.0002% of range + 2 µV for DCV or + 2 mΩ for resistance.
Settling Considerations
Reading settling times are affected by source impedance, cable dielectric characteristics, and input
signal changes. Default delays are selected to give first reading right for most measurements.
Measurement Considerations
Agilent recommends the use of high–impedance, low–dielectric absorption wire
insulation for these measurements.
UG_ED5.book Page 127 Thursday, March 1, 2012 11:28 AM
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