© PCE Instruments
10
5.4
Measurement procedure
Warning
During operation, do not apply more than 30V between any two terminals or between any terminal
and the ground. Any voltage exceeding 30V can not only damage the instrument, but can also
cause personal injury.
Caution
•
Do not
apply a voltage or current to the input terminals exceeding the measurement
range during operation, as it can cause damage to the device.
•
Cut off the power supply to the device before connecting any test leads, as it may cause
damage to the device.
Input procedure
Function
Operation
%Operation
Display
Measurement Range
DCI 20 mA
DCV 28 V
20 mA
%
00.000 mA
-25.00 mA %
0.000 V
-1.000
～
22.000 mA
-31.25
～
112.50 mA %
-0.2000
～
28.000 V
5.4.1
DC current measurement
•
Insert one end of the test lead to the mA jack
（
INPUT
）
of the device and connect the
other end with the input of the device as shown in Figure 5.3.
•
Press the output/input toggle button (3) so that the INPUT symbol appears on the
display. The device is now in an input state.
•
Press the mA%/V unit select button (4) so the device displays mA or mA%; where 0%
is 4mA and 100% is 20mA.
•
The device now begins to measure. ON and the measured result are now shown on
the display.
•
The measurement refresh rate is twice per second. If the measured result exceeds the
measuring range, OL will be shown on the display.
MAX
30V
30V
MAX
MAX
30V
INPUT
OUTPUT
COM
mA
V
+LOOP
XMT
+mA-
+
Figure 5.3
DC current measurement input
