B&K Precision 830C - Manual - Manual (Page 102)

100
The guard terminal is used to minimize noise and to
help minimize parasitic components of the capacitor to
be measured, thus allowing for more accurate results.
SPECIFICATIONS
Below are some remarks in regards to all
specifications pertaining to both 830C and 890C
capacitance meters.
*Specifications are subject to change without notice.
The following conditions must be met for the
specifications to be valid:
1. Measurements are performed at the test
socket.
2. DUT and test leads must be properly shielded
via the guard terminal if necessary.
3. Measurements are made after 30 minutes of
warm up time and operated at 23 °C +/- 5 °C,
<75% R.H.
4. Accuracy specification valid for
measurements within 10% to 100% of full
scale of range; values outside of range should
be used for reference only.
5. Battery powered operation.