Stanford Research Systems PS355, Operation And Service Manual

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Phone: (408)744-9040
www.thinkSRS.com
PS300 Series High Voltage Power Supplies
Front Panel 1 – 3
The two large displays show output voltage to fi ve signi fi cant digits
and output current to four signi fi cant digits. The polarity is indicated
below the voltage display as either POSITIVE or NEGATIVE. The
smaller center display shows the value of the parameter that is
being entered or adjusted. That parameter is indicated by the row
of LEDs directly below the center display.
[SELECT] is used to choose which parameter is being displayed in
the center display. [ENTER] con
fi rms the entry in the center display.
[CLR] erases the value in the middle display and recalls the last
value that was entered. To adjust a value, [SELECT] is pressed until
the appropriate LED is lit. When the value is being changed, the LED
will
fl ash to indicate the value is in a state of change. If an incorrect
value is entered, press [CLR] to start over. When the desired value
is displayed, [ENTER] updates the unit’s actual se ing and stops
the LED from
fl ashing.
All parameters may be adjusted using the cursor or numeric keys.
When using the cursor, the digit being adjusted in the center display
will
fl ash. The [
▲
] and [
▼
] keys increment and decrement the digit.
The [
◄
] and [
►
] keys select the fl ashing digit. When using direct
numerical entry, simply press the number and decimal point keys
until the desired value appears on the center display. Note that the
current is speci
fi ed in microamps.
Three LEDs indicate the instrument’s status. The LIMIT LED is on
when the unit is in a current limit state. REM is on when the front
panel is locked out. REAR is on when the high voltage se ing is
programmed by the rear-panel analog input.
[RESET] toggles the reset mode between AUTO and MAN (manual).
[GPIB] displays the GPIB address in the center display so it can be
adjusted. It also functions as the [LOCAL] key when the unit is in
the remote mode.
1.1.3 Numeric Displays
1.1.4 Select, Enter, Clear
1.1.5 Numeric and Cursor Keys
1.1.6 Instrument Status
1.1.7 Other Keys