HT Instruments HT4011 Manual De Instrucciones página 33

5.2. AC VOLTAGE MEASUREMENT
The maximum input AC voltage is 600V. Do not measure voltages
exceeding the limits given in this manual. Exceeding these limits could
result in electrical shocks to the user and damage to the instrument.
Fig. 4: Use of the clamp for AC Voltage measurement
1. Switch on the instrument in any position of selector, near it an AC source and look for
the red LED at the clamp's base (see Fig. 1 – Part 2) to turn on. This indicates that the
instrument has detected the AC source's presence
2. Select the position
3. Press the MODE key to activate "AC" mode
4. Insert the red cable into input terminal V
terminal COM
5. Position the test leads in the desired points of the circuit to be measured (see Fig. 4).
The display shows the value of voltage
6. If the symbol "O.L" is displayed, this indicates overload status.
7. To use the HOLD and REL functions, please refer to § 4.2.
• Due to the high input impedance, it may take some time for the
instrument to zero the display.
• The changing value shown on the display with open input terminals is
not to be considered a problem of the instrument and these values
are not added by the instrument while carrying out a real measurement.
CAUTION
CAPHz% and the black cable into input
CAUTION
EN – 9
HT4011