Operator`s manual

Signametrics 176
6.7 AC Current Test
The following procedure may be used to verify the accuracy of the ACI function:
1. If you have not done so, install the DMM and place the covers back on to the computer. Ensure that
the computer has been on for at least one-half hour, with the covers on, before conducting this test.
2. Remove all connections from the DMM inputs. Select the ACI function, Autorange.
3. Apply the following AC currents to the I,4 + & - terminals. Check to see that the displayed reading
on the SMU2060 is within the indicated readings range.
AC Current Test
All Inputs are at 400Hz
Step Range Input Minimum Reading Maximum reading
1 2.4 mA 0.1 mA 0.095710 mA 0.104290 mA
2 2.4 mA 1 mA 0.993100 mA 1.006900 mA
3 24 mA 1 mA 0.995400 mA 1.004600 mA
4 24 mA 10 mA 9.981000 mA 10.01900 mA
5 240 mA 10 mA 9.760000 mA 10.24000 mA
6 240 mA 100 mA 99.58000 mA 100.4200 mA
7 2.4 A 100 mA 0.09565 A 0.10435 A
8 2.4 A 1 A 0.99250 A 1.00750 A
Note: Some ranges apply to 2064 only. Please refer to chapter 2.0 (Specification).
AC Current Test
All Inputs are at 10KHz
Step Range Input Minimum Reading Maximum reading
1 2.4 mA 0.1 mA 0.093800 mA 0.106200 mA
2 2.4 mA 1 mA 0.993800 mA 1.006200 mA
3 24 mA 1 mA 0.956000 mA 1.044000 mA
4 24 mA 10 mA 9.992000 mA 10.08000 mA
5 240 mA 10 mA 9.560000 mA 10.44000 mA
6 240 mA 100 mA 99.20000 mA 100.8000 mA
7 2.4 A 100 mA 0.09450 A 0.10550 A
8 2.4 A 1 A 0.99000 A 1.01000 A
Note: Some ranges apply to 2064 only. Please refer to chapter 2.0 (Specification).