Section 3: Functions and features
Model 2450 Interactive SourceMeter® Instrument Reference Manual
3-20
2450-901-01 Rev. B/September 2013
Heading
Description
Index
Provides an identifier for each reading
Reading
Measured value for each reading
Unit
Indicates the unit of measure for the reading; values may be any of the
following: V (Volts), A (Amps), O (Ohms)
Range Digits
Positive full-scale value of the measurement range that the instrument is
presently using; values may be any of the following:
".000000001", ".00000001", ".0000001", ".000001",
".00001", ".0001", ".001", ".01", ".1", "1",
"10", "100", "1000", "10000", "100000", "1000000",
"10000000", "100000000", "1000000000",
"10000000000", "100000000000"
Disp Digits
The number of digits that are displayed for measurements on the front
panel. Values may be 3.5, 4.5, 5.5, or 6.5
Math
T when Math is ON; F when Math is off
Limit1 High
Specifies that the upper limit for limit 1 has been exceeded
Limit1 Low
Specifies that the lower limit for limit 1 has been exceeded
Limit2 High
Specifies that the upper limit for limit 2 has been exceeded
Limit2 Low
Specifies that the lower limit for limit 2 has been exceeded
Terminal
Specifies which set of input and output terminals the instrument was
using when the measurements were made; values may be any of the
following: Front or Rear
Questionable
T or F
Origin
The A/D converter from which the reading originated; for the Model
2450, this will always be Main.
Value
Value is the source value when the reading was taken; if readback is
ON, it is the measured source value; otherwise, it is the programmed
value
Unit
Units of measure of the source; values may be any of the following: V
(Volts), A (Amps), O (Ohms), W (Watts).
Output
On or Off
Sense
2W or 4W
Source Limit
T indicates that the source limit was exceeded; F indicates that the
source limit was not exceeded
Overtemp
T indicates that the instrument is in over temperature; F indicates that
the instrument is not in over temperature
Date
Date the readings were made
Time
Time the readings were made
Fractional Seconds
Fractional portion of the timestamp (in seconds) when each reading was
made
Using the front panel to view the contents of a reading buffer:
1. Press the
MENU
key.
2. Under
Views
, select
Sheet
.
3. Next to Buffer, select the buffer you want to view. The data is displayed.
4. If you want to view the DATA SHEET window for a different buffer, select the
Buffer
button to
display the
Select Buffer to View
menu.
5. To view a specific data point, select
Jump To
and enter the number of the data point.
6. Press the
HOME
key to return to the
HOME
screen.