User`s manual

Chapter 3
Using the HP E1326B/E1411B Multimeter
About This Chapter
This chapter is a collection of example programs which show you how to
make measurements with various multimeter configurations. The examples
in this chapter include:
• Making a Single Measurement . . . . . . . . . . . . . . . . . . . . . . . Page 42
• Making a Burst of Measurements . . . . . . . . . . . . . . . . . . . . . Page 43
• Making an Externally Triggered Burst of
Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 44
• Making Multiple Burst Measurements . . . . . . . . . . . . . . . . . Page 45
• Scanning a Channel List . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 46
• Making Multiple Scans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 47
• Making Multiple Paced Scans . . . . . . . . . . . . . . . . . . . . . . . . Page 48
• Making an Externally Triggered Scan. . . . . . . . . . . . . . . . . . Page 49
• Scanning Switchbox Channels (E1326B/1351A) . . . . . . . . . Page 50
• Scanning Switchbox Channels (E1411B/1460A. . . . . . . . . . Page 52
• Multiple High-Speed Scans . . . . . . . . . . . . . . . . . . . . . . . . . . Page 54
• Maximizing Measurement Speed . . . . . . . . . . . . . . . . . . . . . Page 56
• Changing the Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . Page 58
• Using a PC, C Language, and the HP 82335 HP-IB
Interface Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 60
• Maximizing Measurement Accuracy. . . . . . . . . . . . . . . . . . . Page 63
• Storing Readings in Shared Memory. . . . . . . . . . . . . . . . . . . Page 64
• Checking for Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 66
• Synchronizing the Multimeter with a Computer. . . . . . . . . . Page 68
• Additional Measurement Functions. . . . . . . . . . . . . . . . . . . . Page 69
Using the Programs The purpose of the chapter is to provide example programs that show you
how to operate the multimeter. With minor modifications, these programs
can also be used for many of your applications.
Programming
Language
The example programs are shown in the Hewlett-Packard BASIC language
and assume the multimeter is controlled from an HP 9000 Series 200/300
computer over the HP-IB. When using HP BASIC, a command is sent to
the multimeter with the
OUTPUT statement:
OUTPUT 70903;"MEAS:VOLT:DC? (@100)"
The destination specified (70903) is the interface select code of the
computer (7), plus the HP-IB addresses of the HP 75000 Series B
mainframe or Series C command module (09), and the multimeter (03).
The multimeter command is enclosed between quotation marks. Use
ENTER to enter data from the multimeter is entered into the computer:
ENTER 70903;variable
Chapter 3 Using the HP E1326B/E1411B Multimeter 41