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741B/743B
Users Manual
Using Source Mode
The operating mode (i.e., MEASURE, SOURCE) is
shown in a reverse-video bar on the display. If the
calibrator is not in SOURCE mode, press
SOURCE is shown. You must be in SOURCE mode
to change any of the SOURCE parameters.
Sourcing Electrical Parameters
To select an electrical sourcing function, proceed as
follows:
1. Connect the test leads as shown in Figure 16,
depending on the source function.
2. Press
for current,
for frequency, or
3. Enter the desired output value, then press
. For example, to source 5.0V dc, press
44
until
for dc voltage,
for resistance.
.
If you are sourcing frequency, respond to the
display prompt to select a zero-symmetric
sine or positive square wave. The amplitude
you specify is p-p amplitude.
4. To change the output value enter a new value
and press
.
Note
If you are sourcing current, wait for the
symbol to go out before you use the output.
5. To set the output value to 0 in the present source
function, press
.
6. To turn off sourcing completely, press
Use the source current function to drive a
current loop. This is different than the loop
power function in which the calibrator is
powering a process instrument. To source
loop power, use the
accessible from Setup mode.
Note
twice.
Note
function
Loop Power
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