IEK UNIVERSAL Series, Руководство по эксплуатации, Страница: 20 / 28

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Shut off the circuit to be measured and connect the test probes of the device
in series on load which is used to measure the current.
Read the indications of magnitude and polarity of the measured current
strength on the display.
Upon completion the work, set the rotary switch in the "OFF" position.
Notes.
– If the current value is not known beforehand, set the limits switch to the
position 10 A, and then, switching to smaller limits, adjust the required accuracy
of measurements.
– If the display shows only the digit "1" in the left digit, it means that there
is an overload and it is necessary to set the range switch to a higher volume.
Measurement of DC and AC voltage
Insert the connector of black test probe in "COM" jack and insert the
connector of red test the probe into "V
W
mA" jack. The polarity of the red probe
is considered positive.
With the use of the rotary switch select the desired limit of measurement
of DC V or AC voltage V
~
.
Connect the test probes in parallel to the voltage source or load.
Upon completion the work, set the rotary switch in the "OFF" position.
Upon completion the work, set the rotary switch in the "OFF" position.
Notes.
– When setting the switch of limits to "600 V" position, "HV" and " 7 " signs will
appear on the display, reminding of the work with high voltage. Caution is required.
– If the voltage is not known beforehand, set the switch of limits to the
position of maximum voltage, then, switching to smaller limits, adjust the required
accuracy of measurements.
– If the display shows only the digit "1" in the left digit, it means that there is
an overload and it is necessary to set the range switch to a higher volume.
Measurement of electrical resistance
Insert the connector of black test probe
in "COM" jack and insert the
connector of red test the probe into "V
W
mA" jack. The polarity of the red probe
is considered positive.
Select the desired measuring range by setting the rotary switch to the
appropriate scale division "
W
", and connect the test probes to different ends of
the conductor to be measured.