2
Getting Acquainted with the Basics
Introduction
Introduction
Chapter 2 introduces the front and rear panel features of the 8508A Reference Multimeter
(hereafter, referred to as the Multimeter). Figure 2-1 shows the Multimeter's front panel
controls, indicators, and connectors.
adj002f.eps
Figure 2-1. Front Panel Displays
Input Terminals
Warning
To avoid electric shock, personal injury, or death, never touch any lead
or terminal on the Multimeter unless you are absolutely certain that no
dangerous voltage is present.
The 8508A Multimeter has only front terminals. The 8508A/01 has both front and rear
panel input terminals (Figures 2-2). Select either, or Scan both from the
Input menu or via
IEEE-488 remote control.
For maximum input limits, refer to product specifications in Chapter 5.
adj013f.eps
adj014f.eps
Figure 2-2. Front and Rear Input Terminals
Three pairs of 4 mm ‘banana’ terminals are fitted on the left of the front panel and, as an
option, on the right of the rear panel . Their functions are as follows:
INPUT 2 wire SENSE 4WIRE Ω, ACV
HI
Voltage High
HI
Voltage High (4-wire
Ohms High (2 – wire)
front only)
Ohms High (4-wire)
LO Voltage Low
Current Low
LO Voltage Low (4-wire
front only)
Ohms Low (2-wire)
Ohms Low (4wire)
A Current High (only 2A GUARD
max on rear)
2-3