Keithley 194 Instruction Manual page 40

SECTION 3
OPERATION
3.1 INTRODUCTION
This section contains complete and detailed information
on most operating aspects of the Model 194, including a
complete description of each front panel operating mode,
as well as pertinent information on rear panel functions
such as triggering and real time output.
Section 3 is organized in the following manner:
3.2
3.3
3.4
3.5
3.6
3.7
3.9
3.9
General Display Messages:
Gives a brief description
of general front panel display messages associated
with front panel operation.
Range Selection:
Describes the operatio" of the
ranging buttons, and how to
determine
the selected
range from the display.
Data Entry:
Outlines the data entry sequence used
by many front panel operating modes.
Rate and Samples Programming:
Contains informa-
tion on programming the number of samples per
measurement, as well as how fast those samples are
taken.
Triggering:
Gives
complete information on all
aspects
of instrument triggering modes and functions, in-
cluding how to select the trigger source, how to in-
itiate a measurement sequence, and how to program
trigger level and delay values.
Input Coupling:
Covers instrument input signal
coupling modes, and outlines how to select AC, DC,
or ground coupling.
Recalling Data:
Describes how to recall data stored
in the measurement buffer during OT after a measure-
ment sequence.
Dual Channel Operation:
Gives important operating
information on using a Model 194 that is equipped
with the optional Model 1944 Module in the channel
2 location.
3.10 Using Zero:
Describes how t" USC the ZC'T" mode, in-
cluding how to program baseline values from the front
panel.
3.11 Filtering:
Outlines "per&ion "I the 50kf Iz and
500kHz single pole analog filters.
3.12 Using the Analog Output:
Describes how to use the
analog output to drive graphing devices such as plot-
ters, CRTs, and oscilloscopes.
3.13 Mathematical Functions:
Describes the man!
available Model 194 math functions, including in-
tegral, average, peak to peak, and TRMS.
3.14 Ratio and Difference: Describes IWM.
to display the
ratio and difference bctwecn the two channels.
3.15 Status:
Tells how to recall instrument status and
determine the configuration "f various operating
modes.
3.16 Setup Mode:
Outlines how t" store and rccaII twu
different instrument configurations in non-volatile
"lt3"Wy.
3.17 Front Panel Programs:
Summarizes I~ccc1ss to such
miscellaneous functions as IEEE-488 address pnl-
gramming and digital calibration thmugh ,151' ~,f the
OTHER key.
3.18
Reset:
Tells how to quickly reset the instrument to
its power up default conditions.
3.19 External Clock:
Outlines methods fw connecting two
or more Model ~194s together for synchronw
operatkm
3.20Real Time Output:
Dcscribcs how to use the real tinw
output to transmit data t" other equipnwnt.
3.21 Measurement Considerations:
Details sonw impw
tant considerations when using the Model 194.
3.22Typical Applications:
Gives some typical uses for the
unit.
3-1