User Manual

HT321 - HT322
EN - 9
4.3.3. Resistance measurement
CAUTION
Before taking resistance measurements in circuit remove power from the
circuit being tested and discharge all capacitors.
Fig. 4: Using the instrument for Resistance measurement
1. Switch on 
2. Pressing the R key to select the correct range or using the Autorange feature (see §
4.2.2). If the resistance value under test is unknown, select the highest range.
3. Insert the test leads into the jack, the red plug into V (For HT321) / V °C°F
(For HT322) jack and black plug into COM jack.
4. Connect the test leads to the circuit under test (see Errore. L'origine riferimento non
è stata trovata.). The resistance value is displayed
5. Indications as ".value
k
" or ".value
M
" (respectively for 2k or 2M) mean
0.valuek and 0.valueM. The zero before comma is not displayed.
6. If the message "O.L" is displayed a higher range must be selected.
7. For HOLD function and Maximum value measurement please refer to § 4.2.