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Documenting Process Calibrator
Using Source Mode
41
NOTE
If a measurement falls outside a random noise
window, a new average is started. If damping is
turned off, or until measurements are fully
damped, the
g
symbol is displayed.
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 M until
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 14,
depending on the source function.
2. Press M for current, v for dc voltage, h
for frequency, or q for resistance.
3. Enter the desired output value, then press
e. For example, to source 5.0V dc, press
v 5 . 0 e.
4. To change the output value enter a new value
and press e.
NOTE
If you are sourcing current, wait for the
g
symbol to go out before you use the output.
5. To set the output value to 0 in the present source
function, press c.
6. To turn off sourcing completely, press c twice.
NOTE
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 Loop Power function
accessible from
s
mode.