Detection Of Phase Coincidence - Amprobe ACD-55HPQ Manual De Instrucciones

4.2.8.1.

Detection of phase coincidence

The purpose of this measurement is to verify the correct phase between 2 conductors
before executing a parallel connection.
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.
L3
L2
L1
1
Fig. 14: phase detection
1. Select the " "position.
2. Insert the red plug into V/Ω jack.
1
3. The symbol "
PH
The instrument is ready to perform the first measurement.
4. Connect the red terminal to the L1 phase conductor (see Fig. 14, 1
necessary use the rubber cup to insert red test lead (see Fig. 15, 1
During this measurement:
• The instrument must always be held in the operator's hand.
• The test lead cable must not be in contact with or near to any voltage
source that, due to instrument sensitivity, can abort the measurement.
5. When an input voltage greater than 80V is detected the buzzer sounds and the
PH
symbols " " is shown on the main display. Don't press any key and keep the test
lead connected to L1 phase cable.
If the input voltage value is less to 80V the instrument doesn't show the
PH
" " symbol and it's not possible to execute the phase rotation detection.
L3
L2
L1
2
" is shown on the secondary display and 3 dashes on the primary.
WARNING
L3
L2
L1
1
Fig. 15: phase detection with rubber cup
WARNING
WARNING
EN - 19
ACD-55HPQ
L3
L2
L1
2
st
measurement). If
st
measurement).