VOLTCRAFT CC-421 Bedienungsanleitung Seite 28

D "CAL. ADJUST"
Via this helipot, the output current for use as current source and the
output voltage for use as voltage source can be adjusted. Turning
the adjusting knob to the right, increases the output values. A turn
to the left effects a decrease of the output values.
Performing measurements, operation as
"source"
mA DC measurements
To measure low direct currents up to 24 mADC max. proceed as fol-
lows:
a) Connect the connecting cable (flat side of the plug housing down)
with the current calibrator which is turned off. Make sure that the
connection is tightly made.
b) Set the "FUNCTION" switch to "mA MEASURE" (leftmost position)
c) Set the "RANGE" switch to the right position for two decimal
positions up to 19.99 mA max. or to the left position for one deci-
mal position and 24mA max.
d) Set the "POWER" switch to "I" to turn the current calibrator on.
Following a very short initialization period, the measuring device
is ready to operate.
e) Connect the alligator clips of the connecting cable in series to the
object under test (see below illustration).
current
source
fuse
~ -
measuring device
mA
test object
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