Chapter II
4.4. Measurement of direct current (MX 655 only)
Set the switch to 1000 A
Press on the
display the
signal).
Once the display is stabilised,
press on the ∆ ∆ ∆ ∆ REL button to
automatically reset the DC zero.
600
1000
Then
PEAK
1mS
HOLD
procedure as for measuring
A
V
1000
400
alternating current.
40
Hz
See previous §.
MAX MIN
REL
Note: The correct connection
12.00
direction to obtain a positive
750
value is indicated on the right-
600
1000
600
hand jaw.
4.5. Measuring resistance
Set the switch to Ω.
Connect the red test lead to the
"+" input terminal and the black
test lead to the "COM" input
terminal.
Place the touch prods in contact
with the points to be measured
and read the result on the
600
1000
display.
PEAK
1mS
HOLD
A
1000
V
400
Note: Always ensure that the
40
Hz
circuit is disconnected from the
power supply before measuring
REL
resistance!
To measure low resistances, it
750
600
1000
600V
is
preferable
resistance of the measurement
leads.
To do this, short-circuit the lead
touch prods then press the
∆ ∆ ∆ ∆ REL button before taking the
measurements.
MX 650 / MX 655
.
/
button to
symbol (direct
follow
the
same
to
offset
the
25