HP Q METER 4342A - CAPACITANCE ACCURACY CHECK

Section V
Paragraphs 5-13 to 5-14
5-13. AQ RANGE CHECK.
An AC Voltmeter, a Digital Voltmeter, and a
Reference Inductor are required for this
check.
a. Connect the AC Voltmeter to 4342A HI
and GND terminals and place the Refer-
ence Inductor in the HI and LO termi-
nals as shown in Figure 5-2.
Monitor
DC voltage at AC Voltmeter dc output
terminals with Digital Voltmeter.
b.
Set 4342A controls as follows:
FREQUENCY RANGE . . . . . . . . 70k - 220k
FREQUENCY dial . . . . . . . . . . . . . . . . . 20
Q RANGE . . . . . . . . . . . . . . . . . . . . . . . 100
Q LIMIT . . . . . . . . . . . . . . . . . . . . . . . . CW
L/C dial . . . . . . . . . . . . . . . . . . . 25(pF)
AC dial . . . . . . . . . . . . . . . . . . . . . . . . . 0
C. Set AC Voltmeter range to 1V.
d. Adjust L/C dial so that 4342A meter
pointer indicates 100 (need not indi-
cate a peak value).
Adjust to exactly
100 with the AC dial.
e.
Digital Voltmeter reading should
within 873mV to 927mV.
f.
Adjust L/C dial for 900.0mV on Di
Voltmeter display.
Use AC dial
accurate adjustment.
be
gital
for
g.
Set Q/AQ RANGE to AQlO and adjust AQ
ZERO control (coarse and fine) so that
Q meter indicates 0 (full scale) on AQ
scale.
h.
Adjust AC dial so that Q meter indi-
cates 10 on AQ scale and note Digital
Voltmeter reading. It should be within
801.9mV to 818.lmV.
5-14. CAPACITANCE ACCURACY CHECK.
Model 4342A
An Impedance Meter is required for this check.
a. Connect Impedance Meter to 4342A HI
and GND terminals as shown in Figure
5-3.
Note
When the Model 4192A is used for this
check, set panel controls as
follows:
DISPLAY A . . . . . . . . . . . . . . . . . . . . . . . C
ZY RANGE . . . . . . . . . . . . . . . . . . . . . AUTO
CIRCUIT MODE . . . . . . . . . . . . . . . . . AUTO
FREQUENCY . . . . . . . . . . . . . . . . . . 1OOkHz
OSC LEVEL . . . . . . . . . . . . . . . . . . . . . . 1V
CABLE LENGTH . . . . . . . . . . . . . . . . . . . lm
IMPEDANCE METER
5-4
Figure 5-3.
Capacitance Accuracy Check.