PeakTech 3340, Руководство по эксплуатации

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6. How to make measurements
Understanding Phantom readings
In some DC and AC voltage ranges, when the test leads are not
connected to any circuit, the display might show a phantom reading. This
is normal. The meter´s high input sensitivity produces a wandering effect.
When you connect the test leads to a circuit, accurate reading appears.
Before making any measurements always examine the instrument and
accessories used with the instrument for damage, contamination
(excessive dirt, grease, etc.) and defects. Examine the test leads for
cracked or frayed insulation and make sure the lead plugs fit snugly into
the instrument jacks. In any abnormal conditions exist do not attempt to
make any measurements.
6.1. Voltage measurements
Warning!
To avoid possible electric shock, instrument damage and/or equipment
damage, do not attempt to take any voltage measurements if the voltage is
above 600 V DC/AC. 600 V DC/AC are the maximum voltages, that this
instrument is designed to measure. The "COM" terminal potential should
not exceed 600 V measured to ground
1. Insert the black and red test leads into the COM and V/

/
CAP/Hz/Temp.- input terminals respectively.
2. Select the desired AC voltage range (V ~),
or DC voltage range (V ).
3. Connect the test lead tips in parallel with the circuit to be measured
(e.g. across a load or power supply). Be careful not to touch any
energized conductors. Note the reading.
4. When all measurements are complete, disconnect the test leads from
the circuit under test. Remove the leads from the multimeter. For DC
voltage readings, the RED lead tip should be connected to the positive
side of the circuit, the BLACK lead to the negative side. A minus sign
on the left hand of the LCD will appear if the leads are connected the
other way round.
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