8
MRM10E
4. Measurement
CAUTION
: Check that the item to be measured is voltage free.
1. Before turning the equipment On, connect the test leads to the item to be measured and to the front panel
terminals.
(The alligator clamps in the drawing are only for illustration.)
2. Using the
test current selector
, choose the range and the current to be used.
3. Choose the power supply to use. If you are going to use the battery, advance to the following point. If you
are going to use the mains supply, plug the power cord into the
connector
.
4. Switch the equipment On using the
On/Off
switch.
5. The
PRESS START
message will appear showing that measurement can be started. Press the
Start
key.
Depending on the position of the
test current
control,
the
LOW CURRENT
message will turn up.
6. Turning the
test current
control
clockwise increases the current. Adjust this control until obtaining the
desired value or until the current indicator (bar graph) indicates 100%. The bar graph will show the test
current value as a percentage of the nominal value selected by using the
test current selector
.
7. The lowest current for measuring is 10% of the nominal value. It is important to consider that the
measurement errors increase while test current decreases. The equipment accuracy is specified for test
currents higher than 80%.
8. The
display
will show the resistance value measured and the corresponding unit (
Ω [ohms], mΩ [milli-
ohms] or
µΩ [micro-ohms]).
9. The value can be retained in the display by pressing the
hold
key. Pressing this key again, the value will
be released.
10. Press the
Stop
key to finish the measurement. Do not turn Off the equipment without pressing the
Stop
key.
11. Finally, when finishing measurements, turn the equipment Off using the
On/Off
switch.
CAUTION: Do not connect or disconnect the test leads during the measurement.
Power Cord Connector
