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Description
A group of up to 31 setups can be arranged into a test sequence, and the Model 1140A can be
commanded to step through the setups forward or backward. In this way frequently used tests
may be easily repeated. The sequencing can even be done in a timed manner with the user
establishing the time of each step. The sequence can also be repeated automatically.
CHANGES FROM PREVIOUS VERSIONS
Beginning with serial number 81000, standby mode was introduced and several new functions
were added to the front-panel controls of the Model 1140A. In standby, the output terminals are
disconnected from the voltage source within the instrument. The OPR/STBY (ENTER) key toggles
standby off or on. The up and down ARROW KEYS have the additional function of keying in
either °C or °F without having to go into the menus. See
Front-panel Controls
for details.
Driver installation is no longer needed to connect from LabVIEW to a Model 1140A using the
USB interface. The Model 1140A is a USB Test & Measurement Class (USBTMC) device.
ABOUT THIS MANUAL
Section II
contains the complete set of specifications for the Model 1140A and
Section III
contains instructions for unpacking and installation of the instrument.
Section IV
is the
operator's guide to use the instrument,
Section V
contains application information when using
the Model 1140A, and
Section VI
addresses remote operation. The theory of operation is
described in
Section
VII, and troubleshooting and repair procedures are provided in
Section VIII
and
Section IX
respectively.
Section X
details how to align the unit and
Section XI
is a complete
calibration procedure (accompanying test reports are provided in
Appendix
A). The parts list for
the Model 1140A is given in
Section
XII.
Appendix B
provides a procedure to calibrate a
thermocouple.
In this manual, front-panel controls are indicated by bold, capitalized text (for example,
ENCODER). Words that are displayed on the screen of the Model 1140A are indicated by non-
bold, capitalized text (for example, SEQUENCE).
If you need assistance operating the Model 1140A or you have comments about or corrections
for this manual or the Model 1140A, call 800-732-8159 and ask for Technical Support.
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