Figure 2-3 Maximum And Minimum Multiple Display; Information Messages; Status And Error Messages; Figure - Keithley 2002 User Manual

Perform the following to view or change the plus and minus
percentage of range:
1. From a voltage, current, or resistance function, press
CONFIG and then NEXT or PREV DISPLAY. The fol-
lowing is displayed:
ZERO-BARGRAPH±50.00%
2. Change the percentage by using the cursor keys and the
RANGE and keys to enter a numeric value (0.01 -
99.99%). Press ENTER when done. The same percent-
age of range is used for voltage, current, and resistance
measurements.
Perform the following to view or change the plus and minus
value limit:
1. From the frequency or temperature function, press
CONFIG and then NEXT or PREV DISPLAY. The fol-
lowing menu is displayed:
BARGRAPH TYPE
ZERO-AT-LEFT ZERO-CENTERED
2. Use the cursor keys (
ZERO-CENTERED and press ENTER. You will access
one of the following menus:
For frequency:
FREQ ZEROBARGRAPH(±)
1Hz 10Hz 100Hz 1kHz 10kHz
100kHz 1MHz 10MHz 15MHz
For temperature:
ZERO-BARGRAPH±0002°C
3. Change the frequency limits by highlighting one of the
selections and pressing ENTER. For the temperature,
use the cursor keys and the RANGE
enter a numeric value (0 - 9999°C). Press ENTER when
done.
Maximum and minimum
The maximum and minimum multiple display shows the
maximum and minimum readings since the display was en-
tered. (See Figure 2-3.) The maximum and minimum values
are reset by the following:
and ) to place the cursor on
and keys to
• Pressing the present function key.
• Leaving the display by changing function or entering a
menu.
-15.82867
Max = -05.74602
Maximum
value

Figure 2-3

Maximum and minimum multiple display

The resolution, units, and prefix on the bottom line are the
same as shown for top line reading. If necessary, the bottom
line values automatically change to scientific notation,
rounded to 4.5 digits.

2.3.2 Information messages

Press the INFO key to view context-sensitive information
from most of the displays. An arrow (
tom line indicates that there is more information. Use the
cursor keys ( and ) to view the complete line. To exit
an INFO display, just press INFO, ENTER, EXIT, or a func-
tion key.

2.3.3 Status and error messages

During Model 2002 operation and programming, you will
encounter a number of front panel messages. Typical
messages are either of status or error variety, as listed in

Table 2-4.

The most recent status or error messages can be momentarily
displayed. Just enter a configuration menu or the main menu,
and press the PREV key. (The display is blank if no message
is queued.)

Front Panel Operation

VDC
Min = -15.82867
Minimum
value
or ) on the bot-
2-7