HT instruments HT4022 - Manual (Page 42)

HT4020 - HT4022
EN - 9
4.3.2. AC Voltage frequency measurement
CAUTION
 The maximum voltage input is 600V. Do not attempt to take any voltage
measurements exceeding the limits indicated in this manual. Exceeding
the limits could cause electrical shock or damage to the instrument.
 The instrument won’t measure any AC value less than 1.5V.
Fig. 5: Use of instrument for AC voltage frequency measurement
1. Select the “
V ” position
2. Press the FUNC key to select the Hz function
3. Insert the red plug into V/
 jack and the black plug into the COM jack. For ease of use,
attach the rubber holster and insert a test lead (see Fig. 3)
4. Connect the test leads to the circuit under test (see Fig. 5). The measured frequency of
AC voltage value is displayed
5. The "O.L" symbol indicates a frequency higher than the full-scale capability of the
instrument
6. For HOLD and MAX/MIN/AVG features refer to § 4.2.1 and § 4.2.3
7. Press the FUNC key again to return to the voltage measurement function