Hp 4142B Dcs Settings - HP 4062UX Installation Manual

HP 4142B DCS Settings

When the HP 4142B DCS is installed into the HP 4062 at the factory, the HP 4142B is set as
shown in Figure 4-3. Con rm these settings.
(1) CIRCUIT COMMON (
For oating measurements, the HP 4142B is equipped with CIRCUIT COMMON (
{ CHASSIS GROUND (
environment, however, the HP 4142B can perform grounded measurements only. These
two terminals, therefore, must be connected with the furnished shorting bar.
If used as a standalone instrument, the CIRCUIT COMMON (
?
( ) terminals of the HP 4142B can be disconnected to perform oating measurements.
A potential shock hazard exists when CIRCUIT COMMON (
Warning
to CHASSIS GROUND (
Regardless of the output voltage, do not touch the COMMON terminal of the
SMU, GNDU, VS, or VM connectors during a floating measurement (shorting bar
disconnected).
(2) LINE ON/OFF switch:
The LINE ON/OFF switch located at the lower-left side of the HP 4142B rear panel
must be set to ON for the HP 4062 system. Power is supplied to the HP 4142B using the
POWER ON/OFF switch, located at the front panel of the HP 4142B.
(3) FILTER switch:
The FILTER switch on the rear panel of the HP 4142B sets the measurement integration
period to a multiple of the line frequency period to reduce the e ects of line frequency
noise. Set this switch to the line frequency of the ac power source.
Figure 4-3. HP 4142B Settings
5
) { CHASSIS GROUND (
?
) terminals. When operating the HP 4142B in an HP 4062
?
) on the HP 4142B (shorting bar disconnected).
?
) terminals:
5
) { CHASSIS GROUND
5
System Installation 4-11
5
)
) is not connected