Resistance Measurements - PeakTech 1610 Manual De Instrucciones

6.3. Resistance measurements

WARNING! Attempting resistance or continuity measurements
on live circuits can cause electric shock, damage to the
instrument and damage to the equipment under test. Resistance
measurements must be made on de-energized (DEAD) circuits
only for maximum personal safety. The electronic overload
protection installed in this instrument will reduce the possibility of
damage to the instrument bus not necessarily avoid all damage
or shock hazard.
1. Turn off any power to the resistor to be measured.
Discharge capacitors. Any voltage present during a
resistance measurement will cause inaccurate readings and
could damage the meter if exceeding the overload protection
of 250 V DC or AC.
2. Insert the black and red test leads into the COM and V/
input terminals respectively.
3. Select the desired ohm () range.
4. Connect the black and red test probe tips to the circuit or
device under test, making sure it is de-energized first.
5. Open circuits will be displayed as an overload condition.
6. Test lead resistance can interfere when measuring low
resistance readings and should be subtracted from
resistance measurements for accuracy. Select lowest
resistance range and make the test leads short together.
The display value is the test lead resistance to be
subtracted.
7. After completing measurement, disconnect the DCM test
leads.
-44-