3-50.
3-51.
The SRQ Mask................................................................................. 3-28
3-52.
INTERFACE MESSAGES .................................................................. 3-29
3-53.
Address Messages ............................................................................ 3-29
3-54.
Universal Commands ....................................................................... 3-29
3-55.
Addressed Commands...................................................................... 3-30
3-56.
TALK-ONLY MODE .......................................................................... 3-30
3-57.
3-58.
3-59.
3-60.
EXAMPLE PROGRAMS .................................................................... 3-32
4
4-1.
INTRODUCTION................................................................................ 4-2
4-2.
4-3.
4-4.
4-5.
4-6.
2-Wire Ohms.................................................................................... 4-4
4-7.
4-8.
4-Wire Ohms.................................................................................... 4-5
4-9.
4-10.
TESTING DIODES ..................................................................... 4-7
4-11.
4-12.
4-13.
4-14.
4-15.
4-16.
4-17.
4-18.
Crest Factor ...................................................................................... 4-12
4-19.
4-20.
4-21.
Bandwidth ........................................................................................ 4-13
4-22.
4-23.
AND 20 RANGES ............................................................................ 4-14
4-24.
5
Theory of Operation........................................................................... 5-1
5-1.
INTRODUCTION................................................................................ 5-3
5-2.
5-3.
5-4.
DC SCALING ...................................................................................... 5-4
5-5.
VDC Scaling .................................................................................... 5-6
5-6.
VDC Protection................................................................................ 5-7
5-7.
mA DC Scaling ................................................................................ 5-7
5-8.
Analog Filter .................................................................................... 5-7
5-9.
TRACK/HOLD CIRCUIT ................................................................... 5-8
5-10.
Track Configuration ......................................................................... 5-10
5-11.
5-12.
Hold Configuration .......................................................................... 5-11
5-13.
5-14.
iii
Contents
(continued)