Performance Tests and Calibration 6
Agilent U1251B/U1252B User’s and Service Guide 147
Step Test Function Cal Range Input
Cal Item
U1251B U1252B
11 Press button to go to 500 µA 30 µA,1 kHz 030.00 µA 030.00 µA
µA mode 300 µA,1 kHz 300.00 uA 300.00 µA
5000 µA 300 µA,1 kHz 0300.0 µA 0300.0 µA
3000 µA, 1 kHz 3000.0 µA 3000.0 µA
12 Turn the Rotary Switch to the
position
Open Input terminal
open (remove any
test leads and
Short Plugs from
the input terminal)
oPEn oPEn
50 mA 30 mA 30.000 mA 30.000 mA
440 mA 300 mA 300.00 mA 300.00 mA
Move the test lead from uA.mA and COM terminal to A and COM terminal
Caution: Connect the calibrator to hanheld multimeter's A and COM terminals before applying 3A and 10A
5 A 3 A 3.0000 A 3.0000 A
10 A 10 A 10.000 A 10.000 A
Move the test lead from A and COM terminal to uA.mA and COM terminal
13 Press button to go to 50 mA 3 mA, 1 kHz 03.000 mA 03.000 mA
mA mode 30 mA, 1 kHz 30.000 mA 30.000 mA
440 mA 30 mA, 1 kHz 030.00 mA 030.00 mA
300 mA, 1 kHz 300.00 mA 300.00 mA
Move the test lead from uA.mA and COM terminal to A and COM terminal
Caution: Connect the calibrator to hanheld multimeter's A and COM terminals before applying 3A and 10A
14 Press button to go to 5 A 0.3 A, 1 kHz 0.3000 A 0.3000 A
A mode 3 A, 1 kHz 3.0000 A 3.0000 A
10 A 3 A, 1 kHz 3.0000 A 3.0000 A
10 A, 1 kHz 10.000 A 10.000 A