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CHAPTER 5. HIGH VOLTAGE POWER SUPPLY: MANUAL MODE
At its heart, the HVS448 is as a multi-channel high voltage power supply. In “manual” mode, you set power supply settings for
each channel through the Sequence software, or through other driver software such as LabVIEW™.
Channel Control Panels
Click on a channel in the left pane of the Sequence window to view its control panel (
Figure 12
).
Figure 12. Channel A’s High Voltage Control Panel
Note
:
If the channels are not visible in the left pane, double-click
High Voltage Power Supply/Monitor
to expand that
section and reveal the eight channels, A–H. Then, click on a channel to display its settings.
Channel Status
Monitoring provides feedback on the channel’s status and measures its present voltage and current values. Click
Once
to
monitor and report the voltage and current. Select the
Monitor
check box monitor status and values continuously.
Note
:
The default monitor setting is governed by the Monitor Settings dialog. To set the default, choose
View>Options>Monitoring
(see
Monitor Settings
).
A channel can monitor either its internally-generated voltage or current, or the voltage/current of an external, connected signal.
When the channel’s setting is
Input
, the external values will be read. When the channel setting is
Voltage Output
or
Current
Output
, the internal values will be measured.
Channel Settings
As mentioned earlier, any channel can:
Function as a high voltage voltmeter with
200 M-Ω input impedance
Select
Input
to use a channel as a voltmeter for an incoming signal. The
Target Value
box will disappear. Click
Apply
to record the change.
supply voltage while monitoring current
Select
Voltage Output
, then enter the target voltage to set the channel to
supply a regulated voltage.
supply current while monitoring voltage
Select
Current Output
, then enter a target current to regulate an output
current.
After selecting the channel function click
Apply
to initiate the new function.
