Keysight Technologies 34420A

3 Calibration Procedures
82 Keysight 34420A Service Guide
Table 3-1 Zero Offset Verification Procedure
± Error From Zero
Step# Function/Channel Range 24 hour 90day 1 year
1 Voltage / Channel 1 1 mV
120 nV
[a]
120 nV
[a]
120 nV
[a]
Q 2 Voltage / Channel 1 10mV
120 nV
[a]
120 nV
[a]
130 nV
[a]
3 Voltage / Channel 1 100 mV 300 nV 400 nV 400 nV
4 Voltage / Channel 1 1 V 3 µV 4 µV 4 µV
5 Voltage / Channel 1 10V 10 µV 40 µV 40 µV
Q 6 Voltage / Channel 1 100V 400 µV 500 µV 500 µV
1 Voltage /Channel 2 1 mV
120 nV
[a]
120 nV
[a]
120 nV
[a]
Q 2 Voltage / Channel 2 10 mV
120 nV
[a]
120 nV
[a]
130 nV
[a]
3 Voltage / Channel 2 100mV 300 nV 400 nV 400 nV
4 Voltage / Channel 2 1 V 3 µV 4 µV 4 µV
5 Voltage I Channel 2 10V 10 µV 40 µV 40 µV
7 4-wire Ohms 1 Ω 2 µΩ 2 µΩ 2 µΩ
8 4-wire Ohms 10 Ω 20 µΩ 20 µΩ 20 µΩ
9 4-wire Ohms 100 Ω 200 µΩ 200 µΩ 200 µΩ
Q 10 4-wire Ohms 1 kΩ 2 mΩ 2 mΩ 2 mΩ
11 4-wire Ohms 10 kΩ 20 mΩ 20 mΩ 20 mΩ
12 4-wire Ohms 100 kΩ 300 mΩ 400 mΩ 400 mΩ
13 4-wire Ohms 1 MΩ 3 Ω 4 Ω 4 Ω
14 Low Power Ohms 1 Ω 2 µΩ 2 µΩ 2 µΩ