27
E. MEASURING RESISTANCE
(see figure 5)
Warning!
To avoid damages to the Meter or to the devices under test, disconnect circuit power and
discharge all the high-voltage capacitors before measuring resistance.
The resistance ranges has 7 measurement positions on the rotary switch: 200Ω, 2kΩ, 20kΩ,
200kΩ, 2MΩ, 20MΩand 200MΩ.
To measure resistance, connect the Meter as follows:
1. Insert the red test lead into the
ºC terminal and the black test lead into the
COM
terminal.
2. Set the rotary switch to an appropriate measurement position in Ω range.
3. Connect the test leads across with the objet being measured. The measured value shows on
the display.
(figure 5)
Note
• The test leads can add 0.1Ω to 0.3Ω of error to the resistance measurement. To obtain
precision readings in low-resistance, that is the range of 200Ω, short-circuit the input terminals
beforehand and record the reading obtained (called this reading as X). (X) is the additional
resistance from the test lead.
• Then use the equation:
measured resistance value (Y) (X) = precision readings of resistance.
• For high resistance (>1MΩ), it is normal taking several seconds to obtain a stable reading.
• When there is no input, for example in open circuit condition, the Meter displays “
1
”.
When resistance measurement has been completed, disconnect the connection between the
testing leads and the circuit under test.
