HT instruments HT401 - Manual (Page 15)

HT401
EN - 14
4.4.6. Resistance measurement
CAUTION
Before attempting any resistance measurement, cut off power supply from
the circuit to be measured and make sure that all capacitors are discharged,
if present.
Fig. 7: Resistance measurement
1. Select the position
 /
2. Insert the red cable into input lead V
 and the black cable into input lead COM
3. Press the RANGE key to activate manual range selection (see § 4.2.1) or use the
Autorange feature. If the resistance value is unknown select the maximum range
4. Position the test leads in the desired points of the circuit to be measured. The value of
resistance is shown on the display (see Fig. 7)
5. The message “O.L” indicates that the resistance being measured exceeds the
maximum value measurable by the instrument.
6. For Maximum and Minimum value measurement and HOLD function please refer to §
4.2