Ethos 4150 Manuale utente
Operating Instructions
ETHOS 4150
Motor and Phase Rotation Indicator
2
Introduction
The Motor and Phase Rotation indicator is a
handheld, battery-operated instrument
designed to detect the rotary field of
three-phase systems and determine
motor-rotation direction.
Symbols
The following symbols appear on the Motor
and Phase Rotation indicator or in this manual.
Table 1. Symbols
CAT
Risk of electric shock
Earth
Risk of Danger . Important
information See manual
AC or DC
Hazardous Voltage. Conforms to EU directives.
Equipment protected by
double or reinforced
Insulation
OVERVOLTAGE(Installation)
CATEGORY III,Pollution Degree 2 per IEC
1010-1 refers to the level of Impulse
Wishstand Voltage protection
provided.Equipment of OVERVOLTAGE
CATEGORY III is equipment in fixed
installations (e.g.,electricity meter and
primary over-current protection
equipment.)
Battery Recycling information
Elements of the Motor and Phase
3
Rotation indicator
Indicators, buttons, and jacks are shown in
Figure 1.
1
2
3
4
MOTOR&PHASE ROTATIONINDICATOR
56
71
2
3
4
5
6
7
Test lead input jack
L1,L2,L3 Indicators
Clockwise Rotation LCD Indicator
Counter-Clockwise Rotation LCD Indicator
ON/OFF button
ON/OFF Indicator
Orientation Symbol
Figure 1. The Motor and phase Rotation
Indicator
Using the Motor & phase Rotation Indicator
Determine Rotary Field Direction
To determine the rotary field direction:
1. Connect one end of the test leads to the
Motor and Phase Rotation indicator.
Make sure the L1, L2, and L3 test leads
4
are connected to the corresponding input
jacks.
2. Connect the Alligator clips to the other end
of the test leads.
3. Connect the Alligator clips to the three
mains phases. Press the ON/OFF button.
The green ON indicator shows that the
instrument is ready for testing.
Either the Clockwise or Counter
Clockwise Rotary indicator illuminates
showing the Type of rotary field
direction present.
4. The rotary indicator lights even if the
neutral conductor, N, is connected
instead of the Test lead input jacks. Refer
to Figure 2 (also shown on the back of
the Motor and Phase Rotation indicator)
for more information.
5
Figure 2. Phase Indication Table (shown
on the rear of the Motor and Phase Rotation
indicator)
Non-contact Rotary Field Indication
For non-contact rotary field indication:
1. Disconnect all test leads from the Motor and
Phase Rotation indicator.
2. Position the Indicator on the motor so that it
is parallel to the length of the motor shaft.
The Indicator should be one inch or close to
the motor. See Figure 3.
3. Press the ON/OFF button. The green ON
indicator shows that the instrument is ready
6
for testing.
Either the Clockwise or Counter Clockwise
Rotary indicator illuminates showing the
type of rotary field direction present.
Note
The indicator will not operate with
engines controlled by frequency converters.
The bottom of the Motor and Phase Rotation
indicator should be oriented towards the
drive shaft. See the Orientation Symbol on
the Motor and Phase Rotation indicator.
Figure 3. Motor Rotation
7
See Table 2 for the minimum motor diameter
and number of pole pair to obtain a reliable test
result.
Table 2. Reliable Motor Test Requirements
3.75
5
6
7.5
10
12
15
20
30
60
85.6
64.2
53.5
42.8
32.1
26.7
21.4
16.0
10.7
5.3
Number of
pole pair
Rotary Number Of Rotary Field (1/min)
at Frequency (HZ)
Angel Between
poles Min. of
Motorcase
16 2/3 50 60 cm
1
2
3
4
5
6
8
10
12
16
1000
500
333
250
200
167
125
100
83
62
3000
1500
1000
750
600
500
375
300
250
188
3600
1800
1200
900
720
600
450
360
300
225
Determine the Motor Connection
1. Connect one end of the test leads to the
Motor and Phase Rotation indicator. Make
sure the L1, L2, and L3 test leads are
connected to the corresponding jack.
2. Connect the alligator clamps to the other end
of the test leads.
8
3. Connect the alligator clamps to the motor
connections, L1 to U, L2 to V, L3 to W.
4. Press the ON/OFF button. The green ON
indicator shows that the instrument is ready
for testing.
5. Turn the motor shaft half a revolution
towards the right.
Note
The bottom of the Motor and Phase Rotation
indicator should be oriented towards the drive
shaft. See the Orientation Symbol on the Motor
and Phase Rotation indicator.
Either the Clockwise or Counter Clockwise
Rotary indicator illuminates showing the type of
rotary field direction present.
Magnetic Field Detection
To detect a magnetic field, place the Motor
9
and Phase Rotation indicator to a solenoid valve.
A magnetic field is present if either the
Clockwise or the Counter Clockwise Rotary
indicator illuminate.
Note
The Motor and Phase Rotation indicator
contains alkaline batteries. Do not dispose of
these batteries with other solid waste. Used
batteries should be disposed of by a qualified
recycler or hazardous materials handler.
The Motor and Phase Rotation indicator
uses a 9V battery (supplied). To replace the
battery, follow these steps.
1. Place the Motor and Phase Rotation
indicator face down on a nonabrasive
surface and loosen the battery-door
10
screw with a screwdriver.
2. Life the battery access lid away from the
Motor and Phase Rotation indicator.
3. Observe the battery polarity shown in the
battery compartment.
4. Secure the battery access lid back in
position with the screw.
Unpacking the Motor and Phase
Rotation indicator
The Motor and Phase Rotation indicator ships
with the following items:
3 test leads
3 alligator clips
9 V battery
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