Adjustment Procedure - Agilent Technologies U1271A Service Manual

Adjustment procedure

N O T E
U1271A/U1272A Service Guide
Table 1-3 Adjustment input values (continued)
Test function Step
SHORT
30 MΩ
3 MΩ
Resistance 300 kΩ
30 kΩ
3 kΩ
300 Ω
30 Ω
Temperature K type
Note: Ensure the multimeter is turned on and stabilized for at least 60 minutes
with the K-type thermocouple connected between the multimeter and the
calibrator output terminal.
SHORT
Diode
3 V
Review the "Test considerations"
beginning the adjustment procedures.
1 Turn the rotary switch to the respective test function
position as shown in the adjustment input values table
(Table 1- 3).
2 Unsecure the instrument to enter the adjustment mode.
(See "Unsecuring the Instrument for Calibration"
page 19).
Calibration Procedures
Using the Front Panel for Adjustments
Reference value Valid reference input
SHORT Ω/COM terminals
SHORT
OPEN OPEN terminals
0.9 to 1.1 × Reference value
10.000 MΩ
0.9 to 1.1 × Reference value
3.0000 MΩ
0.9 to 1.1 × Reference value
300.00 kΩ
0.9 to 1.1 × Reference value
30.000 kΩ
0.9 to 1.1 × Reference value
3.0000 kΩ
0.9 to 1.1 × Reference value
300.00 kΩ
30.000 Ω 0.9 to 1.1 × Reference value
0 °C with ambient
0000.0 °C
compensation required
SHORT SHORT V/COM terminals
0.9 to 1.1 × Reference value
2.0000 V
and "Adjustment considerations"
1
before
on
27