9100A/9200A/9400
2-10 Introduction and Operating Instructions
floated signal ground.
Always bear in mind the following warning:
WARNING
Input and output grounds are tied together and
therefore, it is absolutely forbidden to connect the
output ground to a different level than the input
ground. Failure to adhere to this limitation may
damage the 9400 and the surrounding equipments,
that are connected to its I/O connectors.
Basic Operating
Instructions
Being a passive device, there are no controls, nor computer
programming required to operate the 9400. The following
procedure is recommended for proper operation of the high voltage
power amplifier:
1. Make sure your amplifier is turned off and that the High
Voltage latch is forced to its down position. This will assure
that the high voltage path to the output connectors will be
blocked when power is applied to the amplifier
2. If you intend to operate the amplifier using its standard,
bipolar operating mode, make sure the rear panel switch is
set to Unipolar Mode OFF position (push the switch in and
out to feel the action and select the outward position of the
switch). Information how to use the amplifier in unipolar
mode is given later in this manual.
3. Connect the mains power cord to the rear panel AC Line
Input receptacle
4. Connect the mains power cord to the wall power socket
5. Turn power on using the front panel POWER switch. Not that
the power on light illuminates
6. Using standard BNC to BNC cables (not supplied with the
instrument), connect the source signal(s) to the amplifier
input(s). Make sure the source signal level does not exceed
the level as specified in Appendix A of this manual
7. Remove the protective caps from the output connector(s). As
precaution, leave the protective caps on the unused output