B&K Precision 302 - Manual - Manual (Page 6)

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BRIEF PRODUCT DESCRIPTION
OPERATING INSTRUCTIONS
This 3 Phases and Motor Rotation Tester has 3 test leads which
connects to the 4 mm female sockets on the tester, on the one side.
These Test leads are color coded:
L1 = Red
which connects to L1 on the tester.
L2 = White(or yellow) which connects to L2 on the tester.
L3 = Blue(or black) which connects to L3 on the tester.
On the other side of the test leads are the probes, also color coded.
The tester has three neon lamps which are the Phase Presence
indicators:
Neon Lamp for Individual Phase Presence Indication = L1
Neon Lamp for Individual Phase Presence Indication = L2
Neon Lamp for Individual Phase Presence Indication = L3
Please note that any of these Neon lamp will only start to light up if
more than 100Vac is present between any 2 phases.
A LED to display clockwise rotary direction.
A LED to display counter clockwise.
A LED to display and confirm operation and battery OK status.
A Push Button to switch the instrument ON.
Determination of the rotary field direction and phase presence
On a 3 Phase System, the sequence of the 3 phases determine the
rotation of a 3 phase motor connected to that system.
The correct 3 Phase Sequence L1, L2, L3 results in a clockwise
rotation of the connected motor.
Connect the Test Leads to the sockets of the Instrument, respecting
the correct color. Red to L1, White(or yellow) to L2, Blue(or black) to
L3.
Clip the test probes to the three mains phases, L1, L2, L3
When connecting to a voltage superior to 100V AC, the
corresponding neon lamp will start to glow, indicating the presence
of the voltage on it's corresponding lead (L1, L2, L3 lamps).
Press the TEST button to turn the instrument "ON".
The green LED indicates that the instrument is ON and is busy
testing. The battery is OK when the green LED is ON.
Should the Green LED not come on while depressing the TEST
button, replace the battery (see Battery Replacement).
If the LED (Right arrow) L1-L2-L3 is illuminated, clockwise rotary
field is present.
If the LED(Left arrow) L2-L1-L3 is illuminated, a counter clockwise
rotary field is present.
Please note that; the phase control is displayed even if the neutral
conductor N is connected instead of L1, L2, or L3.
Also refer to table (as indicated on the back of instrument)
Determination of motor connections and rotation of motor
Connect test leads to instrument and to the motor connections.
These are also Color Coded;
U = Red
which connects to L1 on the tester.
V = White(or yellow) which connects to L2 on the tester.
W = Blue(or black) which connects to L3 on the tester.
Press button On. The green LED indicates that the instrument is
ready for testing.
Turn the motor shaft by at least half rotation towards the right. Look
at the Leds while doing that.
It is important to ensure that the user looks from the front side onto
the driving shaft and the front side of the tester at the same time, so
that motor rotation can be confirmed.
The red LED (Right arrow) L1-L2-L3 indicates clockwise motor
rotation if the lines are connected as follows: L1 to U, L2 to V,
L3 to W.
The red LED (Left arrow) L2-L1-L3 indicates counter- clockwise
motor rotation if the lines are connected as follows: L1 to V, L2
to U, L3 to W.