Martel Electronics MasterCAL - Manual (Page 56)

MasterCAL
Users Manual
46
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 16,
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 5.0 V dc, press
v 5 . 0 e .
Note
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
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 Setup mode.