Fluke 21 User Manual
77/75/23/21 English Instruction Sheet
Page
6
Continuity Test (
R
)
RANGE
CAT
CAT
CAT
+
_
RANGE
CAT
CAT
CAT
+
_
hc8f.eps
If continuity exists (resistance < 210
Ω
for Models 21/75 and
<270
Ω
for Models 23/77), the beeper sounds continuously. The
meter beeps twice if it is in Touch Hold
mode.
Current (
?
A
)
W
Warning
To avoid injury, do not attempt a current
measurement if the open circuit voltage exceeds the
rated voltage of the meter.
measurement if the open circuit voltage exceeds the
rated voltage of the meter.
To avoid blowing an input fuse, use the 10 A jack until you are
sure that the current is less than 300 mA.
sure that the current is less than 300 mA.
Turn off power to the circuit. Break the circuit. (For circuits of
more than 10 amps, use a current clamp.) Put the meter in series
with the circuit as shown and turn power on.
more than 10 amps, use a current clamp.) Put the meter in series
with the circuit as shown and turn power on.
RANGE
_
CAT
CAT
CAT
+
+
1
2
4
3
A
hc10f.eps