Ht-instruments HT32 Manual do Utilizador descarregar pdf (Página 15)

HT32

EN - 14

4.3.6. Resistance measurement

CAUTION

Before taking resistance measurements in circuit remove power from the

circuit being tested and discharge all capacitors.

Fig. 7: Resistance measurement

1. Turn the selector on .

2. Insert the test leads into the jacks, the red plug into HzVA jack and the black

plug into COM jack (Fig. 7).

3. Connect the red and black test leads to the circuit under test, the resistance value will

be displayed with automatic detection of the range.

4. Press RANGE key to activate the manual mode; the “AUTO” symbol disappears from

display. Press cyclically RANGE to change the position of the decimal point on the

display. To activate the Autorange function keep pressed RANGE for at least 1 second.

5. The message "OL" means that the resistance exceeds the measuring limits. In this

case disconnect the test leads from the circuit under test to avoid damaging the

instrument or endanger your own safety.

6. For minimum and maximum value measurement and HOLD function please refer to

paragraph 4.2.

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