Keysight U1271A - Page 32

1 Calibration Procedures
32 Keysight U1270 Series Service Guide
10
Resistance Turn the rotary
switch to the / position.
30 Ω
[c][e]
30 Ω - ±0.070 Ω
300 Ω
[c][e]
300 Ω ±0.65 Ω ±0.65 Ω
3 kΩ
[c][e]
3 kΩ ±0.0065 kΩ ±0.0065 kΩ
30 kΩ
[e]
30 kΩ ±0.065 kΩ ±0.065 kΩ
300 kΩ 300 kΩ ±0.65 kΩ ±0.65 kΩ
3 MΩ 3 MΩ ±0.0185 MΩ ±0.0185 MΩ
30 MΩ
[d]
30 MΩ ±0.365 MΩ ±0.365 MΩ
100 MΩ
[d]
100 MΩ ±2.10 MΩ -
300 MΩ
[d]
120 MΩ - ±9.70 MΩ
[c] The accuracy of the 30 Ω to 3 kΩ range is specified after the Null function is used to subtract the test lead resistance and thermal effect
(by shorting the test leads). Apply a 0 Ω calibrator output and allow the multimeter to settle before pressing the key.
[d] The RH is specified for <60%.
[e] With a 2-wire connection and compensation enabled at calibrator.
11
Diode Turn the rotary switch to
the or position.
3 V 3 V 0.0155 V 0.0155 V
12
Capacitance
[f]
Turn the rotary
switch to the position.
10 nF 10 nF ±0.105 nF ±0.105 nF
100 nF 100 nF ±1.02 nF ±1.02 nF
1000 nF 1000 nF ±10.2 nF ±10.2 nF
10 μF 10 μF ±0.102 μF ±0.102 μF
100 μF 100 μF ±1.02 μF±1.02 μF
1000 μF 1000 μF ±10.2 μF ±10.2 μF
10 mF 10 mF ±0.102 mF ±0.102 mF
[f] The accuracy for all ranges is specified based on a film capacitor or better, and after the Null function is used to subtract the residual values
(by opening the test leads).
Table 1-2 Performance verification tests (continued)
Step Test function Range 5520 output Error from nominal 1 year
U1271A U1272A/
U1273A/U1273AX
Smart
S
c
a
l
e
N
u
l
l
Auto