Keithley 199 User Manual

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General Information
1.1 INTRODUCTION
The Keithley Model 199 System DhJM Scanner is a five
function autoranging digital multimeter. At 5% digit resolu-
tion, the LED display can display &02,999 counts. The
range of this analog-to-digital (A/D) converter is greater
than the normal *199,999-count A/D converter
used in many 5% digit DMMs. The built-in IEEE-488 titer-
face makes the instrument fully programmable over the
LEEE-488 bus. The Model 199 can make the foBowing basic
measurements:
1. DC voltage measurements from l&V to 3OOV.
2. Resistance measurements from II& to 3OOMR.
3. TRMS AC voltage measurements from 1pV to 309V.
4. DC current measurements from lOOnA to 3A.
5. I’RMS AC current measurements from lOOnA to 3A.
In addition to the above mentioned measurement
capabilities, the Model 199 can make ACT dB voltage and
current measurements.
1.2 FEATURES
Some important Model 199 features include:
l 10 Character Alphanumeric Display-Easy to read 14
segment LEDs used for readings and front panel
messages.
l Zero-Used to cancel offsets or establish baselines.
l Data Store-Can store up to 500 readings and is access-
ible over the bus or from the front panel.
l Digital Calibration-The instrument may be digitally
calibrated from either the front panel or over the bus.
l User Programmable Default Conditions-Any instru-
ment measurement configuration can be established as
the power-up default conditions.
l Translator Software-User defined words (stored innon-
volatile memory) can be used to replace standard com-
mand strings over the IEEE-493 bus.
l Optional Field-Installable Internal Scanner-Allows the
unit to switch up to 8, 2-pole channels, or 4, 4pole
channels.
1.3 WARRANTY INFORMATION
Warranty information may be found on the inside front
cover of this manual. Should it become necessary to exer-
cise the warranty, contact your KeithIey representative or
the factory to determine the proper course of action.
Keithley Instruments maintains service facilities in the
United States, United Kingdom and throughout Europe.
Information concerning the application, operation or ser-
vice of your instrument may be directed to the applications
engineer at any of these locations. Check the inside front
cover for addresses.
1.4 MANUAL ADDENDA
Information concerning improvements or changes to the
instrument which occur after the printing of this manual
will be found on an addendum sheet included with the
manual. Be sure to review these changes before attempt-
ing to operate or service the instrument.
1.5 SAFETY SYMBOLS AN6 TERMS
The following safety symbols and terms are used in this
manual or found on the Model 199.
The A
symbol on the instrument denotes that the user
should refer to the operating instructions in this manual.
The&
on the mstrument denotes that a hazardous
potential may be present on the terminal(s). Standard safe-
ty practices should be observed when such dangerous
levels are encountered.
The WARNING used in this manual explains dangers that
could result in personal injury or death.
The CAUTION used in this manual explains hazards that
could damage the instrument.
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Keithley 199 Specifications

General

Brand	Keithley
Model	199
Category	Scanner
Language	English