Stanford Research Systems PS310 Bedienungsanleitung
SERIES PS300
HIGH VOLTAGE
POWER SUPPLIES
MODEL PS310
MODEL PS325
MODEL PS350
1290-D Reamwood Ave.
Sunnyvale, CA 94089 U.S.A.
Phone: (408) 744-9040, Fax: (408) 744-9049
Copyright © 1998, 2000
Stanford Research Systems, Inc.
Al Rights Reserved
Revision 2.9
08/2004
1
TABLE OF CONTENTS
Safety and Preparation for Use 3
Series PS300 Specifications 5
Instrument Overview
Front Panel Summary 7
Power Button 7
High Voltage Enable Switch 7
LED Displays 7
Select, Enter, and Clear 7
Numeric and Cursor Keys 8
Instrument Status 8
Other Keys 8
Store and Recall 8
Rear Panel Summary 9
Power Entry Module 9
High Voltage Output Connector 9
High Voltage Polarity Selector 9
Analog Outputs 9
IEEE-488 Port 10
Guide to Operation
Setting Output Voltage 11
Setting Voltage Limit 11
Setting Current Limit 11
Setting Current Trip 11
Primary Trip 11
Reset Mode 11
Store and Recall 12
Error Messages 12
Analog Programming and Monitor 12
Default Setup 12
Guide to Programming
Remote Programming 13
Command Syntax 13
Detailed Command List 13
Output Control Commands 13
Setting Control Command 14
Interface Control Commands 14
Status Reporting Commands 15
Status Reporting 15
Serial Poll Status Byte 15
Standard Event Status Byte 16
GPIB Error Messages 16
Program Examples 17
Example 1 - IBM PC, Microsoft Basic,
Via Capitol Equipment Corp GPIB 17
Example 2 - IBM PC, Microsoft C 4.0,
Via Capitol Equipment Corp GPIB 19
Example 3 - IBM PC, Microsoft C 4.0,
Via National Instruments GPIB 21
Troubleshooting
Power On Reset 23
Stuck Keys 23
No High Voltage 23
Repeated Trips 23
Rear Panel Voltage Set 23
Front Panel Test 23
Calibration 24
Circuit Description
Introduction 25
Voltage Control 25
Low Voltage Pre-Regulator and
High Frequency Inverter 25
Limits and Trips 26
A/D's and D/A's 26
Microprocessor Control 26
GPIB and Front Panel Interface 26
Low Voltage Power Supplies 27
Front Panel 27
High Voltage Section 27
Component List
Main Board 29
Front Panel 35
HV Board - PS310, PS325, PS350 36
Miscellaneous Parts 40
Schematics
Voltage Control 1/11
High Voltage Drive 2/11
Limits and Trips 3/11
Analog Voltages and A/D 4/11
Microprocessor Section 5/11
GPIB and Front Panel 6/11
Low Voltage Power Supply 7/11
HV Front Panel 8/11
Model PS310 - 1250 V, 20 mA 9/11
Model PS325 - 2500 V, 10 mA 10/11
Model PS350 - 5000 V, 5 mA 11/11
2
3
SAFETY AND PREPARATION FOR USE
**********WARNING **********
This unit contains hazardous high voltages.
Please make certain that the high voltage is
completely discharged before removing the high
voltage cable. High voltage cables can store
charge if they are disconnected from the supply
while the high voltage is on. The charge on
the cable can cause injury or damage even after
the cable is disconnected from the unit.
Do not change the high voltage polarity unless
the power is off.
***********CAUTION **********
This instrument may be damaged if operated
with the LINE VOLTAGESELECTOR set for
the wrong AC line voltage or if the wrong fuse is
installed.
Line Voltage Section
The PS300 series operates from 100, 120, 220 or
240 Volts nominal AC power source with a line
frequency of 50 or 60 Hz. Before connecting the
power cord to a power source, verify that the
LINE VOLTAGE SELECTOR card, located in
the rear panel fuse holder, is set so the correct
AC input voltage is visible.
Conversion to other AC input voltages requires a
change in the fuse holder voltage card position
and fuse value. Disconnect the power cord, open the
fuse holder cover door, and rotate the fuse-pull lever
to remove the fuse. Remove the small printed circuit
board. Select the operating voltage by orienting the
printed circuit board. Press the circuit board firmly
into its slot, so the desired voltage is visible. Rotate
the fuse-pull lever back into its normal position.
Insert the correct fuse into the fuse holder.
Line Fuse
Verify that the correct line fuse is installed before
connecting the line cord. For 100 V / 120 V, use a 1
Amp fuse and for 220 V / 240 V, use a 1/2 Amp fuse.
Line Cord
The PS300 series use a detachable, three-wire power
cord for connection to the power source and to a
protective ground. The exposed metal parts of the
instrument are connected to the outlet ground which
provides protection against electrical shock. Always
use an outlet which has a properly connected
protective ground.
Connection to Other Instruments
The back panel BNC shields are connected to the
chassis ground and the AC power source ground via
the power cord. Do not apply any voltage to the
shield. The high voltage SHV connector is also
connected to the chassis ground and CANNOT be
floated away from ground.
5
SERIES PS300 SPECIFICATIONS
General Information
The PS300 series are programmable precision high voltage power supplies for use in laboratory or test
applications. They feature reversible polarity, excellent regulation and low output voltage ripple. The digital
displays provide accurate readings of voltage and current. Also, digital entry of the current and voltage
provides accurate resettability. Output voltage can be set from either the front panel, the remote analog voltage,
or over the optional GPIB interface. Voltage and current signals are also available for remote monitoring.
Electrical Specifications
Model Output Voltage Maximum Output Current
PS310 50 to ±1250 Volts 20 mA
PS325 50 to ±2500 Volts 10 mA
PS35050 to ±5000 Volts5 mA
Voltage Set Accuracy 0.01% + 0.05% of full scale
Voltage Display Accuracy V Set Accuracy ±1 Volt, typ ( ±2 Volt, max)
Voltage Resolution 1 Volt (set and display)
Voltage Resettability 1 Volt
Voltage Limit Range 0 to 100% of full scale
Voltage Regulation (*) Line: 0.001% for ±10% line voltage change
Load: 0.005% for 100% load change, typ
Output Ripple < 0.0015% of full scale, Vrms, typ
< 0.002% of full scale, Vrms, max
Current Limit and Trip Range 0 to 105% of full scale
Current Set accuracy 0.01% + 0.05% of full scale
Current Resolution PS310: 10 µA
PS325: 10 µA
PS350: 1 µA
Current Display Accuracy PS350: I Set Accuracy ±1 µA, typ ( ±2 µA, max)
PS325 or PS310: Accuracy ±10 µA, typ ( ±20 µA, max)
Stability 0.01% per hour, < 0.03% per 8 hours
Temperature Drift 50 ppm / °C, 0° to 50° C, typ
Protection Arc and short circuit protected; programmable voltage and
current limits and current trip.
(*) Regulation specifications apply for > 0.5% (full load) or 1.0% (no load) of full scale Voltage.
Below these values the unit may not regulate correctly.
6
Recovery Time 12 ms for 40% step change in load current, typ
Discharge Time <6 sec (to < 1% of full scale voltage with no load, typ)
Trip Response Time <10 µs
Minimum Trip Current 10 µA
Monitor Outputs Output Scale: 0 to +10 Volts for 0 to full scale output
regardless of polarity
Current Rating: 10 mA, max
Output Impedance: < 1 Ω
Accuracy:0.2%offullscale
Update Rate: 8 Hz
External Voltage Set Input Scale: 0 to +10 Volts for 0 to full scale output
regardless of polarity
Input Impedance: 1 MΩ
Accuracy:0.2%offullscale
Update Rate: 16 Hz
Output Slew Rate: < 0.3 sec for 0 to full scale under full load
Mechanical Specifications
Dimensions 16.0" x 8.1" x 3.5" (L x W x H)
The PS300 series are 1/2 rack width (19 inch standard rack). Optional rack
mounting kits are available for single or double rack mounts. The single
rack mount provides mounting for one supply. The double rack mount
provides side by side mounting for 2 supplies.
Weight 8 lbs
Input power 50 watts, 100, 120, 220, 240 VAC ±10%, 50 or 60 Hz
Output High Voltage Connector SHV male (Kings Type 1704-1 or equivalent, not included)
Mating High Voltage Connector SHV female (Kings Type 1705-14 or equivalent, not included)
Warranty One year parts and labor on materials and workmanship
7
INSTRUMENT OVERVIEW
Front Panel Summary
Power Button
The PS300 series are turned on by depressing the
POWER button. The unit always powers up with
the high voltage OFF. All instrument settings are
stored in nonvolatile memory and are saved when
power is turned off. The model number (310, 325,
or 350), firmware version, and serial number are
displayed when power is turned on. If an error
appears on power on, then the stored settings were
lost and the default settings are used. If the default
settings are desired, hold down the CLR (clear) key
while turning on the power.
High Voltage Enable Switch
This is a three position switch that performs several
functions. In the down position, the high voltage is
off and all trips are cleared. In this position the
high voltage is locked OFF and cannot be turned
on by computer control. The up position is
momentary and turns on the high voltage for
manual or rear panel analog control. In the middle
position the high voltage is enabled (but not
necessarily on) and can be turned on by computer.
The large red LED above the switch indicates that
the high voltage is on; the yellow LED below it
indicates a trip has occurred.
LED Displays
The two large displays show output voltage and
current to four significant places. Polarity is
displayed on the left of the voltage display. 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, Enter, and Clear
The SELECT key is used to choose which
parameter is being displayed in the center display.
The ENTER key enters the parameter shown in the
center display. The clear (CLR) key erases the
value in the middle display and recalls the last
value that was entered. To adjust a value, the
SELECT key is pressed until the appropriate LED
is lit. When the value is being changed, that LED
will flash to indicate that the value in the center
display is not the current unit setting. If an
incorrect value is entered, press CLR (clear) to start
over. When the desired value is in the center
display, pressing the ENTER key updates the unit's
actual setting and stops the LED's flashing.
8
Numeric and Cursor Keys
All parameters may be adjusted using the cursor or
numeric keys. When using the cursors, the digit
being adjusted in the center display will flash. The
UP and DOWN keys increment and decrement the
digit. The LEFT and RIGHT keys select the
flashing 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 specified in mA.
Instrument Status
Three LED's indicate the instrument's status. The
LIMIT LED is on when the unit is in current limit.
REM is on when the front panel is locked out.
SRQ is on when a GPIB service request is pending.
Other Keys
RESET sets the reset mode to either AUTO or
MAN (manual).
GPIB displays the GPIB address in the center
display so it can be adjusted. It is also the LOCAL
key when the unit is in the remote mode.
Store and Recall
STO (store) and RCL (recall) allow up to 9
complete instrument settings to be saved in
nonvolatile memory. RCL 0 recalls the default
settings.
Dieses Handbuch passt für folgende Modelle
3
Inhaltsverzeichnis
Andere Stanford Research Systems Stromversorgung Handbücher
