HT instruments HT9 - Manual (Page 9)

HT6-HT8-HT9
EN - 8
5.2. PHASE DETECTION FUNCTION WITH 1 TERMINAL
WARNING
 The maximum input AC and DC voltage is 690V. 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.
 The quality of the indication cannot be reliable if you work under
unfavourable conditions such as, for example, on wooden ladders, in
rooms with insulated floors, etc.
 Correct indication is only guaranteed for AC voltage in a range between
100V and 690V and with a frequency between 50Hz and 60Hz
Fig. : 4: Phase detection
1. Touch the contact “Electrode” with a finger (see
Fig. : 1– no. 6).
2. Connect the fixed lead L2 to the point of the
object to be tested where the presence of AC
voltage needs to be verified. The test is only
carried out by contact between the lead and
the metal part of the conductor.
3. The instrument switches on automatically and
the Phase detection/Dangerous voltage LED
turns on (see Fig. 2 – no. 5) and the buzzer
sounds continuously to indicate that an AC
voltage higher than 100V has been detected.
In case of measurements in environments with poor
light, press the Torch button (see Fig. : 1 – no. 7) to
activate the white LED pointer.