Fluke 28IIEX Fluke 28IIEx User Manual - Page 38

AC or DC Current Measurements, you measure current.

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28 II Ex Users Manual AC or DC Current Measurements XWWarning To prevent electric shock or personal injury, do not try an in-circuit current measurement where the open-circuit potential to earth is larger than 1000 V. You can cause Product damage or personal injury if the fuse blows. WCaution To prevent damage to the Product or to the equipment under test: • Examine the fuses of the Product before you measure current. • Use the correct terminals, function, and range for all measurements. • Do not put the probes across (in parallel with) a circuit or component when the leads are connected to the current terminals. To measure current, you must open the current path of the circuit under test and put the Product in series with the circuit. The current ranges of the Product are 600.0 μA, 6000 μA, 60.00 mA, 400.0 mA, 6.000 A, and 10.00 A. To measure current, refer to Figure 8 and continue as follows: 1. Remove power from the circuit. Discharge all highvoltage capacitors. 2. Put the black lead into the COM terminal. For currents between 0 mA and 400 mA, put the red lead into the mA/μA terminal. For currents more than 400 mA, put the red lead into the A terminal. Note To prevent damage to the 400-mA fuse of the Product, use the mA/μA terminal only if you are sure the current is less than 400 mA continuously or less than 600 mA for 18 hours or less. 28

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28 II Ex
Users Manual
28
AC or DC Current Measurements
XW
Warning
To prevent electric shock or personal injury,
do not try an in-circuit current measurement
where the open-circuit potential to earth is
larger than 1000 V. You can cause Product
damage or personal injury if the fuse blows.
W
Caution
To prevent damage to the Product or to the
equipment under test:
•
Examine the fuses of the Product before
you measure current.
•
Use the correct terminals, function, and
range for all measurements.
•
Do not put the probes across (in parallel
with) a circuit or component when the
leads are connected to the current
terminals.
To measure current, you must open the current path of
the circuit under test and put the Product in series with
the circuit.
The current ranges of the Product are 600.0
μ
A, 6000
μ
A,
60.00 mA, 400.0 mA, 6.000 A, and 10.00 A.
To measure current, refer to Figure 8 and continue as
follows:
1.
Remove power from the circuit. Discharge all high-
voltage capacitors.
2.
Put the black lead into the
COM
terminal. For
currents between 0 mA and 400 mA, put the red lead
into the
mA/
μ
A
terminal. For currents more than
400 mA, put the red lead into the
A
terminal.
Note
To prevent damage to the 400-mA fuse of the Product,
use the mA/
μ
A terminal only if you are sure the current is
less than 400 mA continuously or less than 600 mA for
18 hours or less.