Keysight U1271A, Service Manual

Page: 20 / 63

1 Calibration Procedures
20 Keysight U1270 Series Service Guide
Recommended Test Equipment
The test equipment recommended for the performance verification and
adjustment procedures are listed below ( Table 1-1 ). If the exact instrument is not
available, substitute with another calibration standard of equivalent accuracy.
A suggested alternative method is to use the Keysight 3458A 8½ Digit Digital
Multimeter to measure less accurate but stable sources. The output value
measured from the source can be entered into the instrument as the target
calibration value.
Table 1-1 Recommended test equipment
Application Recommended equipment Recommended accuracy requirements
DC voltage Fluke 5520A <20% of the U1270 Series accuracy specification
DC current Fluke 5520A <20% of the U1270 Series accuracy specification
Resistance Fluke 5520A <20% of the U1270 Series accuracy specification
AC voltage Fluke 5520A <20% of the U1270 Series accuracy specification
AC current Fluke 5520A <20% of the U1270 Series accuracy specification
Frequency Fluke 5520A <20% of the U1270 Series accuracy specification
Capacitance Fluke 5520A <20% of the U1270 Series accuracy specification
Duty cycle Fluke 5520A <20% of the U1270 Series accuracy specification
Diode Fluke 5520A <20% of the U1270 Series accuracy specification
Temperature
Fluke 5520A <20% of the U1270 Series accuracy specification
TM Electronics KMPC1MP
(K-Type thermocouple extension)
—
Short Pomona MDP-S —
Z
low
Keysight U1252B —