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