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User Manual
EC1000S
California Instruments
159
5.3.1 Output mode setting
lists the eight output modes that can be selected (based on combinations of two operation modes
and four signal source modes).
The mode cannot be changed when output is on. Turn output off before entering settings.
Table 5-12. Output Modes
Operation Mode
Signal Source Mode
Output Mode
AC
(alternate
current)
INT (internal)
AC-INT
EXT (external)
AC-EXT
ADD (in external)
AC-ADD
SYNC (external synchronization)
AC-SYNC
AC+DC
(direct current)
INT (internal)
AC+DC-INT
EXT (external)
AC+DC-EXT
ADD (in external)
AC+DC-ADD
SYNC (external synchronization)
AC+DC-SYNC
Selection of operation mode
The EC1000S enables selection between two operation modes: AC (alternate current) and AC+DC (direct
current).
AC:
In this mode, the EC1000S is used as an AC constant voltage source. The voltage supplied
to the load is proportionate to the set value or the input signal. The DC component is
removed.
AC+DC: In this mode, the EC1000S is used as a DC constant voltage source. The voltage supplied
to the load is proportionate to the set value or the input signal.
Selection of signal source
The EC1000S enables selection of four signal source modes: INT (internal), EXT (external), ADD (internal
+ external), and SYNC (external synchronization).
INT:
The EC1000S internal signal source is used. DC or AC set via the control panel menu is output.
EXT:
Signals from an external signal that is connected to the external signal input/external sync
signal input terminal (EXT SIG IN/EXT SYNC IN) on the rear panel are output as external input
gain amplified signals.
ADD:
In this mode, a waveform comprised of the above INT and EXT signal sources is output.
SYNC: In this mode, the output waveform is synchronized with either an external sync signal source
(TTL) connected to the external signal input/external sync signal input terminal (EXT SIG
IN/EXT SYNC IN) on the rear panel or the input power line.
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