IET Labs, Inc. RLC Digibridge 1693, User And Service Manual, Page: 52 / 171

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1693 RLC Digibridge
Operation
Figure 3-22: Connecting 1693 to a 3-terminal 1482
LOW GND HIGH
formerly made by GenRad
1 mH
1482-E STANDARD INDUCTOR
LOW GND HIGH
formerly made by GenRad
1 mH
1482-E STANDARD INDUCTOR
PL IL
PH IH
14 gauge bus wire
Standard
DUT
1693 RLC DigiBridge TM
1.0000 484.1
POWER
uF
I
L
P
H
P
L
I
H
mH pF nF H k S
DEG
NOT 1kHz
RANGE
HELD
CONST V.
PPM
START
NO
GO
GO
BIAS
ON
EXTERNAL
BIAS
REMOTE
CONTROL
On
Off
SER
On
Off
CONST I.
RATIO
mS uS
R C L Y Z G R D Q ANG B X
R/Q C/R C/D L/Q
PAR
Standard
Measurement
LOW GND HIGH
formerly made by GenRad
1 mH
1482-E STANDARD INDUCTOR
LOW GND HIGH
formerly made by GenRad
1 mH
1482-E STANDARD INDUCTOR
PL IL
PH IH
14 gauge bus wire
Standard
DUT
1693 RLC DigiBridge
TM
1.0000 484.1
POWER
uF
I
L
P
H
P
L
I
H
mH pF nF H k S DEG
NOT 1kHz
RANGE
HELD
CONST V.
PPM
START
NO
GO
GO
BIAS
ON
EXTERNAL
BIAS
REMOTE
CONTROL
On
Off
SER
On
Off
CONST I.
RATIO
mS uS
R C L Y Z G R D Q ANG B X
R/Q C/R C/D L/Q
PAR
DUT
Measurement
3.2.12 Connection to 1409
Capacitance Standards
Connection to the 1409 Capacitance standard can be
accomplished using the 1657-9600 Extender cables or
7000-04 Alligator Clip Leads. Open and Short com-
pensation should be performed. When measuring two
terminal capacitance standards, such as type 1409,
that are calibrated in a two terminal configuration care
must be taken to keep exact cable geometries so as
not to introduce error due to stray capacitance. This
is extremely importance on low value of capacitance.
The connection shown below is for a two terminal
measurement on the 1409 with ground strap con-
nected between Lo and ground. The green guard
lead is not used in this measurement. Measurements
made with this connection will compare favorably
with measurements made on the IET Labs’s 1620
Capacitance Bridge. The configuration of having the
drive connections on one side and the potentials on
the other side minimizes connection resistance which
can affect dissipation factor measurements.
Figure 3-23: Connection to 1409 Standard
Capacitor