HT instruments EQUITEST5071 - Manual (Page 31)

EQUITEST 5071
EN - 29
6.4.6. " " mode: measurement procedure and results
1. Select the " " mode using the F1 key.
2. Insert the 3 Black, Blue, Green connectors of the separate cables into the relevant
instrument input terminals B1, B2, B3.
Fig. 16: Instrument connection for phase sequence test
3. Insert the alligator clips onto the conductors of the three-phase system (see Fig. 16)
4. Press the START key. The instrument carries out the test.
CAUTION
When message "MEASURING…" is displayed, this indicates that the
instrument is carrying out the test. Never disconnect the instrument’s leads
during this phase.
At the end of the test,
the instrument gives out
a double sound to
indicate that test has
been correctly
performed and the
following screen
appears on the display. 30.11.12
Phase sequence indication
123
123
FRQ=50.0HZ V1-2=391V
V2-3=401V V3-1=399V
OK
PHASE ROTATION
Phase-Phase voltage values
Correct phase sequence
FUNC
Operating mode
5. The results can be saved by pressing the SAVE key twice (see § 7.1).
CAUTION
Message “123” DOES NOT mean that Input B1 is connected to phase L1,
Input B2 is connected to phase L2 and Input B3 is connected to phase L3,
but it only indicates that the phases of the electric system being tested
respect the correct sequence.