Tektronix DMM4040 User Manual page 87

To avoid blowing the current input fuse or possibly damaging
the Meter:
Current measurements between 400 mA and 10 A should be
measured using only the 10 A and LO input connectors.
BEFORE applying power to the circuit to be measured,
ensure the test leads are correctly connected to the Meter
inputs appropriate for the expected current.
Exceeding 440 mA on the 400 mA input connector or
exceeding 11 A on the 10 Amp connector will blow the
internal fuse.
Current measurements expecting to be between 400 mA and 10 A are made using the
Input LO and 10A input connectors as shown in Figure 4-5.
I < 400 mA
V AC
Figure 4-4. Input Connections for Current Measurements Below 400 mA
I > 400 mA
and
I < 10 A
V AC
Figure 4-5. Input Connections for Current Measurements Above 400 mA
W Caution
Making Measurements
Measuring Current
INPUT SENSE
V 4 W
2 2W/4W
HI HI
1000 V CAT I
300V
600V CAT II
LO LO
1V
FUSED
4 00
10A
mA
REAR FRONT
caw025.eps
INPUT SENSE
V 4 W
2W/4W 2
HI HI
1000 V CAT I
300V
600V CAT II
LO LO
1V
FUSED
4 00
10A
mA
REAR FRONT
caw026.eps
4
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