User manual

Front Panel Operation
3-12 2001-900-01 Rev. K/ August 2010
Some examples of when multiple conditions are cancelled
by pressing the EXIT key follow.
Example 1: After pressing ENTER to hold the reading
display, press INFO to view the message. The first press of
EXIT returns you to the held reading; a second press cancels
reading display hold.
Example 2: Configure a scan list and start scanning. Press
ENTER to hold the display, then press INFO to view the
message. The first press of EXIT returns you to the held
reading; the second press returns you to the normal reading
display. A third press of EXIT stops the scan and returns to
normal operation.
Example 3: Configure a scan list and start scanning readings
into a buffer. Press EXIT once. Scanning and storing are
terminated; normal operation is resumed. Note that the
trigger model is restored to its pre-scanning configuration.
Example 4: Configure a scan list and start scanning readings
into a buffer. Press ENTER to hold the reading display. Press
INFO to view the message. The first press of EXIT returns
you to the held reading display. A second press of EXIT
cancels the held reading and shows normal storage. A third
press of EXIT stops scanning and storing; normal operation
is resumed.
3.4 Functions
The Model 2001 has much flexibility when configuring the
measurement functions. This flexibility must be used
sensibly in order to balance the various settings for a
particular application. For example, you can configure DC
volts with an integration time of 0.01 PLC (power line cycle)
at 7.5 digits of resolution and no filter, but the reading will
be extremely noisy. As another example, DCV peak spikes
can be configured for 7.5 digits of resolution, yet the
measurement is specified at 3.5 digits. When in doubt, use
the default settings and the auto selections until you become
more familiar with the effects of other settings.
The instrument can be configured to display multiple
functions, where different functions are measured
sequentially from the same leads. These are referred to as
“multiple displays” and they are shown on the bottom line of
the display. The displays for multiple functions are discussed
in the following paragraphs.
NOTE
All measurements in the multiple display
mode will be within specifications. How-
ever, for optimum measurement integrity,
the primary display mode should be used.
To minimize the need to reprogram setup conditions every
time you switch from one function to another, each function
“remembers” its own unique setup configuration. Setup
configuration parameters that are remembered include:
•Range
• Relative
• Integration time
• Filtering
• Display resolution
• Multiple displays
To access the configuration menus for the measurement
functions, press the CONFIG key and then a function key
(DCV, ACV, DCI, ACI, 2, 4, FREQ, TEMP). Rules for
navigating the menu structures are covered in paragraph
3.3.5.
q~ÄäÉ=PJR
EXIT key actions
Condition EXIT key action
Temporary message displayed
(e.g., TRIGGERS HALTED)
Cancels display of temporary message.
INFO message displayed Cancels INFO message, returns to menu or normal reading display.
Reading display hold Cancels reading display hold, resumes normal reading display.
Scanning Disables scanning. Also stops data storage if enabled.
Data storage Stops data storage. Temporary message STORAGE INTERRUPTED is displayed.