Measurement Of Direct Current (Mx 655 Only); Measuring Resistance - Metrix MX 650 Notice De Fonctionnement

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 ΔREL button to
automatically reset the DC
zero.
600 1000
PEAK
1mS
Then follow the same
HOLD
A
1000 V
400 procedure as for measuring
40
alternating current.
Hz
See previous §.
MAX MIN REL
12.00
Note: The correct connection
direction to obtain a positive
750
600
1000
value is indicated on the right-
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
600 1000
on the display.
PEAK
1mS
HOLD
A
1000 V
400
Note: Always ensure that the
40
circuit is disconnected from the
Hz
power supply before measuring
REL
resistance!
To measure low resistances, it
750
600
1000
is preferable to offset the
600V
resistance of the measurement
leads.
To do this, short-circuit the lead
touch prods then press the
Δ
REL button before taking the
measurements.
24
Chapter II
.
/ button to
symbol (direct
MX 650 / MX 655