AMETEK CSW Series - Manual (Page 75)

User Manual California Instruments
CSW Series 75
3.11.11 UTILITY Menus
Figure 3-26: UTILITY menus
The UTILITY menus provide access to less frequently used setup items. There is no connection
between the various entries in the UTILITY menu other than there is no other logical place to put
them. The following entries can be found in the UTILITY menu:
Entry Description
UTILITY 1
GPIB/RS232 SETUP This entry provides access to the setup parameters for either
the IEEE-488, RS232C, USB or LAN interface. All parameters
are saved in non-volatile memory so there is rarely a need to
change these values.
VOLT/CURR CONTROL The voltage and current control menu can be used to select the
voltage range pair, the current limit method, the voltage sense
source, and the number of output phases.
The standard available voltage range pairs are 156 and 312
volts in all modes, AC or DC.
The two current limit choices are Constant Voltage and
Constant Current. Constant Voltage mode will maintain the set
voltage at the output until the load current exceeds the current
limit setting at which time the voltage will be dropped to zero.
This effectively shuts off the AC source output in case of an
overload condition. This mode has user programmable trip
delay which is located in the same menu.
Constant Current mode will maintain the load current at the
maximum level set by the current limit value, even if the
maximum power level is exceeded. This is done by reducing
the voltage as needed. As such, the voltage will be reduced
from the set level down to zero depending on the load
requirement. This mode is useful for starting up motor or
capacitor loads that may require a high inrush current. This
mode also has a user programmable trip delay.
Voltage Reference (VOLT REF) will select between the internal
programming reference (INT) an external reference (EXT) or an
external gain control (RPV) . The EXT mode will allow an
external signal from 0 to 5.0 Vrms to program an output voltage
from 0 to full-scale. The RPV mode will allow a DC input from 0
to 7.07 VDC to control the programmed output waveform from 0
to the full-scale output voltage.
The number of outputs in a single power source system with
can be switched between 5550 VA in the single phase mode or
1850 VA per phase in the three phase mode. In the 1-phase
mode the B and C outputs must be manually connected to the
Phase A output. These connections must be removed in the 3-
phase mode.