Tektronix Keithley 2281 Series Reference Manual page 7

Table of contents
Power supply ........................................................................................................................... 2-96
Battery test .............................................................................................................................. 2-97
Battery simulator ..................................................................................................................... 2-97
Select a specific measurement range ................................................................................ 2-97
Selecting a specific measurement range ................................................................................ 2-98
Using autoranging for current measurements ......................................................................... 2-99
Protection ......................................................................................................................... 2-100
Overvoltage protection .......................................................................................................... 2-101
Overcurrent protection .......................................................................................................... 2-102
Overtemperature protection .................................................................................................. 2-103
Overprotection error .............................................................................................................. 2-103
Maximum voltage limits ......................................................................................................... 2-104
Saving setups ................................................................................................................... 2-105
Save a user setup ................................................................................................................. 2-105
Recall a user setup ............................................................................................................... 2-106
Specify a default setup .......................................................................................................... 2-107
Using the event log .......................................................................................................... 2-107
Information provided for each event log entry ....................................................................... 2-107
Save the event log to an external flash drive ........................................................................ 2-108
Clear the event log ................................................................................................................ 2-108
System information .......................................................................................................... 2-108
Instrument sounds ............................................................................................................ 2-109
Resets .............................................................................................................................. 2-109
Reset the instrument ............................................................................................................. 2-110
Reset default values .............................................................................................................. 2-110
Functions and features ............................................................................................ 3-1
Instrument access ................................................................................................................ 3-1
Changing the instrument access mode ..................................................................................... 3-2
Changing the password ............................................................................................................ 3-2
Graph ................................................................................................................................... 3-3
Changing the window position and zoom .................................................................................. 3-3
Adjusting the scale and offset of the Y-axis .............................................................................. 3-4
Graphing the battery test function ............................................................................................. 3-6
Graphing the battery simulation function ................................................................................... 3-7
Output delay, slew rate, and source delay ........................................................................... 3-8
Output delay .............................................................................................................................. 3-8
Slew rate ................................................................................................................................... 3-9
Source delay ........................................................................................................................... 3-10
Data buffer ......................................................................................................................... 3-11
Effects of reset and power cycle on buffer .............................................................................. 3-11
Buffer fill status ........................................................................................................................ 3-12
Setting reading buffer size and buffer mode............................................................................ 3-12
Viewing and saving buffer content .......................................................................................... 3-14
Configuring the statistics applied to data in the buffer ............................................................. 3-18
Clearing the buffer ................................................................................................................... 3-21
Automatically clearing a buffer ................................................................................................ 3-21
Digital I/O ........................................................................................................................... 3-22
Digital I/O port ......................................................................................................................... 3-22
Configuring digital I/O lines ..................................................................................................... 3-27
Trigger model ..................................................................................................................... 3-30
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual