Frequency And Duty Cycle Measurements - HT Instruments HT60 Manuel D'utilisation

4.3.6. Frequency and Duty Cycle measurements

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. 7: Use of the instrument for frequency measurement and duty cycle test
1. Select position Hz%. The symbol
2. Insert the red cable into input terminal Hz%V
terminal COM.
3. Position the test leads in the desired spots of the circuit to be measured (see Fig. 7).
The display shows the value of frequency.
4. The message
measurable value.
5. Press the Hz%key until symbol
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.
Hz
"
O.L. indicates that the value of frequency exceeds the maximum
" "
CAUTION
is shown on the display.
"

% is shown in order to activate Duty Cycle
" "
EN - 13
and the black cable into input
HT60