Connection To 1417 Capacitance Standard; Figure 3-25: Connecting To A 1417 - IET Labs, Inc. RLC Digibridge 1693 User And Service Manual

1693 RLC Digibridge
3.2.14 Connection to 1417
Capacitance Standard
Connection to the 1417 Capacitance Standard can be
accomplished using the 1657-9600 Extender cables
or 7000-04 Alligator Clip Leads. A four terminal
connection should be made to the 1417 as shown
below. The Digibridge may have a slight dc voltage
so a blocking capacitor, greater than 200 µF, should
be connected in series with the H Current terminal.
Sense +/Red White/PH
Sense -/Blk White/PL
Drive +/Red/IH
Drive -/Black/IL
30
Blocking
Capacitor

Figure 3-25: Connecting to a 1417

Open compensation should be performed as normal.
Short compensation should be performed as follows;
with cables connected as above with exception of
plugging Red White/PH lead into Black White/PL
lead. Set the 1417 to a capacitance value of 1F and
frequency of 1kHz and then perform short on the
Digibridge. Return Red White/PH lead to H Potential
connection on 1417 when short is complete. Note: It
can be beneficial to twist potential leads together and
twist the current leads together to minimize coupling.
Operation