Specifications

Signametrics 122
6.8 Capacitance Test (SMX2044 only)
The following procedure may be used to verify the accuracy of the Capacitance 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. Connect the DMM V,Ω + & - terminals to the calibrator HI & LO Outputs. Attach the test leads to the DMM,
leaving the other end open circuited. Allow the DMM to settle for a few seconds, and perform the Relative
function. (This effectively nulls out the lead capacitance of your cabling.
3. Apply the following Capacitance values to the V, Ω + & - terminals. Check to see that the displayed reading on
the SMX2044 is within the indicated range of readings.
Step Range Input Minimum Reading Maximum reading
1
10 ηF 10 ηF
9.785 ηF
10.215 ηF
2
100 ηF 100 ηF
99 ηF 101 ηF
3
1 µF 1 µF
0.99 µF
1.01 µF
4
10 µF 10 µF
9.9 µF 10.1 µF
5
100 µF 100 µF
99 µF 101 µF
6
1 mF 1 mF
0.988 mF 1.012 mF
7
10 mF 10 mF
9.8 mF 10.2 mF
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