IET Labs GenRad 1403 Series, Руководство по эксплуатации

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5
1403 Series
5 Operation
Chapter 3
OPERATION
3.1 Initial Inspection and Setup
This instrument was carefully inspected before ship-
ment. It should be in proper electrical and mechanical
order upon receipt.
To provide ready reference to specifi cations, a label,
shown in Figure 2-1, is attached to the case of the
instrument.
3.2 Connections to Capacitor
All 1403 capacitors have 2 GR 874 or 2 bnc connec-
tors labeled
HI and LO , as shown in fi gure 3-1.
Figure 3-1: 1403 capacitor standard with bnc
connectors
Equivalent circuit showing direct capacitance, Cd,
and average values of residual inductance, L, and
terminal capacitances, Ca and Cb.
Figure 3-2: Capacitance shunted by leakage
to case
3.3 Temperature Coeffi cient
Temperature coeffi cients are
typically ±(20 to 40)
ppm/°C .
It is important to consider the TC of the 1403 when
measuring at temperatures other than 23°C.