HP 432A, Manual

Page: 24 / 78

Model 432A Section III
Operating Information
3 − 7
1. Line Fuse. For 115 Vac or for 230 Vac use 1/8
amp fuse
2. Power Cord Input. Use power cord provided,
HP 8120-0078. Line power limits are 115/230
Vac, 48-440 Hz. Check FUSE rating and
position of line voltage slide switch before
connecting power.
3. Line Voltage Slide Switch: Set to line voltage
available (115 or 230 Vac, 48-440 Hz).
4. Mounting Hole for Option 002 Model Power
Meters. Thermistor mount cable connector
installed and wired in parallel with front-panel
connector. Only one mount at a time may be
used with the power meter.
5. V
RF
Input. Connected directly to RF bridge.
Used for calibrating power meter with
HP 8477A Power Meter Calibrator. Also used
for precision power measurements.
6. V
COMP
Input. Connected directly to
compensation bridge. Used for calibrating
power meter with HP 8477A Power Meter
Calibrator. Also used for precision power
measurements.
7. RECORDER OUTPUT. Voltage from meter
circuit to be used for recorder or digital volt-
meter. Output impedance is approx. 1000
Ω
.
Figure 3 − 3. Rear Panel Controls and Connectors (Sheet 2 of 2)
NOTE: The photograph opposite is for
illustration purposes only.