HT9020
EN - 16
CAUTION
If the frequency of the measured voltage is lower than 42.5Hz or higher than
69Hz, the display shows the message “
F<42.5 Hz
” or “
F>69 Hz
” and phase
detection does not start.
5. When a voltage higher than or equal to 100V is detected, the
instrument emits a sound signal (buzzer) and the message
“
Meas
” is displayed. Do not press any key and keep the test
lead connected to L1 phase cable.
Mod
P h S e q
P H 1
Meas
6. Once phase L1 acquisition is complete, the instrument stops
the acoustic signal and the “
Discon.
” Message is shown.
Disconnect the test lead from phase L1 cable.
Mod
P h S e q
D i s c o n .
Wait
7. The message “
PH2
“ is shown and the instrument waits for
the detection of L2 phase. Connect the test lead to phase L2
cable (see Fig. 7)
Mod
P h S e q
P H 2
Wait
CAUTION
If more than 3 seconds elapse before detecting phase L2, the instrument
displays the message “
Time Out
”. It is necessary to repeat the measuring
cycle from the beginning, by pressing
F3
(
New
) and starting again from point
3.
8. When a voltage higher than or equal to 100V is detected, the
instrument emits a sound signal (buzzer) and the message
“
Meas
” is displayed. Do not press any key and keep the test
lead connected to L2 phase cable
Mod
P h S e q
P H 2
Meas
Summary of Contents for HT9020
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