HT60
EN - 12
4.3.5. Frequency and Duty Cycle measurements
CAUTION
The maximum input AC voltage is 250V. Do not measure voltages
exceeding the limits given in this manual. Exceeding voltage limits could
result in electrical shocks to the user and damage to the instrument.
Fig. 6: Use of the instrument for frequency measurement and duty cycle test
1. Select position Hz%. The symbol “Hz” is shown on the display.
2. Insert the red cable into input terminal VHz%CAPTemp and the black cable
into input terminal COM.
3. Position the test leads in the desired spots of the circuit to be measured (see Fig. 6).
The display shows the value of frequency.
4. The message “O.L.” indicates that the value of frequency exceeds the maximum
measurable value.
5. Press the Hz%key until symbol “%” is shown in order to activate Duty Cycle
measurement and connect the instrument as for Frequency measurement. The result is
shown on the display.
6. To use the HOLD function, see § 4.2.
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