Dissipation factor / tan d standards are designed for checking the accuracy of capacitance
and dissipation factor measuring instruments.
Model 3721 is a resistance unit with four tan d values housed in a sheet-metal casing. Four
sockets for Lemo-3 cable are provided on one side of the casing and two plugs on the other.
The resistance of the unit plugs directly into the top of the type 3320 standard capacitor
series.
Model 3723 is a resistance unit with single value tan d resistors housed in separate casing.
Each casing plugs directly into 3370 nominal capacitor series.
